Humboldt-Universität zu Berlin - Mathematisch-Naturwissenschaftliche Fakultät - Institut für Chemie




* Chowdhury, A., Kovalenko, S.A., Aramburu, I.V., Tan, P.S., Ernsting, N.P., Lemke, E.A.: Mechanism-Dependent Modulation of Ultrafast Interfacial Water Dynamics in Intrinsically Disordered Protein Complexes. Angewandte Chemie - International Edition, 58 (14), pp. 4720-4724 (2019). DOI: 10.1002/anie.201813354


* Quick, M., Dobryakov, A.L., Ioffe, I.N., Berndt, F., Mahrwald, R., Ernsting, N.P., Kovalenko, S.A.: Rotamer-Specific Photoisomerization of Difluorostilbenes from Transient Absorption and Transient Raman Spectroscopy. Journal of Physical Chemistry B, 122 (3), pp. 1049-1059 (2018). DOI: 10.1021/acs.jpcb.7b09283


* Ioffe, I.N., Quick, M., Quick, M.T., Dobryakov, A.L., Richter, C., Granovsky, A.A., Berndt, F., Mahrwald, R., Ernsting, N.P., Kovalenko, S.A.: Tuning Stilbene Photochemistry by Fluorination: State Reordering Leads to Sudden Polarization near the Franck-Condon Region. Journal of the American Chemical Society, 139 (42), pp. 15265-15274 (2017). DOI: 10.1021/jacs.7b09611

* Gerecke, M., Richter, C., Quick, M., Ioffe, I.N., Mahrwald, R., Kovalenko, S.A., Ernsting, N.P.: Effect of a Tertiary Butyl Group on Polar Solvation Dynamics in Aqueous Solution: Femtosecond Fluorescence Spectroscopy. Journal of Physical Chemistry B, 121 (41), pp. 9631-9638 (2017). DOI: 10.1021/acs.jpcb.7b05031

* A. L. Dobryakov, S. A.;Quick.M.; Richter C.;  N. P. Ernsting,; Photoisomerization pathways and Raman activity of 1,1'-difluorostilbene. Journal of Chemical Physiks, 146, 044501,(2017)

* Merkel M.; Dehmel L.;  N. P. Ernsting: An Isosteric and Fluoresscent DNA Base Pair Consisting of 4-aminophthalimide and 2,4-diaminopyrimidine as C-Nucleosides. Angewandte Chemie - International Edition, 56, 382-388, (2017)

* Gurke J.; Quick M.; Ernsting N.P.: Acid-catalysed thermal cycloreversion of a diarylethene:a potential way for trigger release of stored light energy? Chemical Communications, 53, 2150-2153, (2017)


* Martin Quick*,  Alexander L. Dobryakov, Ilya N. Ioffe, Alex A. Granovsky, Sergey  A. Kovalenko, Nikolaus P. Ernsting*:  Perpendicular State of an Electronically Excited Stilbene: Observation by Femtosecond Stimulated Raman Spectroscopy. J. Phys. Chem. Lett. 7, 404?4052 (2016)  

* A. L. Dobryakov, M. Quick, D. Lenoir, H. Detert, N. P. Ernsting*, S. A. Kovalenko*: Time-resolved Photoisomerization of 1,1'-Di-tert-butylstilbene and 1,1'-Dicyanostilbene.  Chemical Physics Letters 652, 225–229 (2016)  

* G. Angulo*, M. Brucka, M. Gerecke, G. Grampp, D. Jeannerat, J. Milkiewicz, Y. Mitrev, C.Radzewicz, A. Rosspeintner*, E. Vauthey, P. Wnukae: Characterization of dimethylsulfoxide/glycerol mixtures: a binary solvent system for the study of “friction-dependent” chemical reactivity.  Phys. Chem. Chem. Phys., 18, 18460-18469 (2016)  

* M. Gerecke, G. Bierhance, M. Gutmann, N. P. Ernsting*, A. Rosspeitner*: Femtosecond broadband fluorescence upconversion spectroscopy: Spectral coverage versus efficiency. Rev. Sci. Instrum., 87, 053115 (2016)

* J. Moreno, M. Gerecke, L. Grubert, S. A. Kovalenko, S. Hecht: Sensitized Two-NIR-Photon Z?E Isomerization of a Visible-Light-Addressable Bistable Azobenzene Derivative. Angew. Chem. Int. Ed., 55, 1544-1547 (2016)

* C. Richter, N. P. Ernsting, R. Mahrwald*: Operationally Simple and Selective One-Pot Synthesis of Hydroxyphenones: A Facile Access to SNARF Dyes. Synthesis, 48, A-I (2016)

* L. Dehmel, F. Berndt, M. Weinberger, M. Sajadi, I. Ioffe, H.-A. Wagenknecht*, N. P. Ernsting*: Isosteric and fluorescent DNA base pair formed by 4-amino-phthalimide and 2,4-diaminopyrimidine: melting, structure, and THz polar solvation dynamics. Phys. Chem. Chem. Phys., 18, 6813-6820 (2016)


* M. Quick, M-A. Kasper, C. Richter, R. Mahrwald, A. L. Dobryakov, S. A. Kovalenko, N. P. Ernsting: ß-Carotene revisited by Transient Absorption and Stimulated Raman Spectroscopy. Chem. Phys. Chem., 16 (18), 3824-3835 (2015)

* C. Richter, C. Schneider, M. T. Quick, R. Mahrwald, J. Hughes, B. Dick, U. Alexiev*, N. P. Ernsting*: Dual-fluorescence pH probe for bio-labelling. Phys. Chem. Chem. Phys., 17, 30590-30597 (2015)

* J. Moreno, M. Gerecke, A. L. Dobryakov, I. N. Ioffe, A. A. Granovsky, D. Bléger, S. Hecht, S. A. Kovalenko: 2-Photon- versus 1-photon-induced isomerization dynamics of an azobenzene derivative in solution. J. Phys. Chem B,, 119 (37), 12281-12288 (2015)

* M. Quick, A. L. Dobryakov, S. A. Kovalenko, N. P. Ernsting: Resonance Femtosecond-Stimulated Raman Spectroscopy without Actinic Excitation Showing Low-Frequency Vibrational Activity in the S2 State of All-Trans ß-Carotene. J. Phys. Chem. Letters, 6 (7), 1216–1220 (2015)

* X.-X. Zhang*, J. Breffke, N. P. Ernsting, M. Maroncelli*: Observations of probe dependence of the solvation dynamics in ionic liquids. Phys. Chem. Chem. Phys., 17, 12949-12956 (2015)


* H. Lemmetyinen, N. V. Tkachenko, B. Valeur, J. Hotta, M. Ameloot, N. P. Ernsting, T. Gustavsson, N. Boens: Time-resolved fluorescence methods (IUPAC Technical Report). Pure Appl. Chem., 86 (12), 1969–1998 (2014)

* M. Quick, A. L. Dobryakov, M. Gerecke, C. Richter, F. Berndt, I. N. Ioffe, A. A. Granovsky, R. Mahrwald, N. P. Ernsting and S. A. Kovalenko: Photoisomerization Dynamics and Pathways of trans- and cis-Azobenzene in Solution from Broadband Femtosecond Spectroscopies and Calculations. J. Phys. Chem. B, 118 (29), 8756–8771 (2014)

* M. Quick, F. Berndt, A. L. Dobryakov, I. N. Ioffe, A. A. Granovsky, C. Knie, R. Mahrwald, D. Lenoir, N. P. Ernsting and S. A. Kovalenko: Photoisomerization Dynamics of Stiff-Stilbene in Solution. J. Phys. Chem. B, 118 (5), 1389–1402 (2014)

* M. Liang, X.-X. Zhang, A. Kaintz, N. P. Ernsting and M. Maroncelli*: Solvation Dynamics in a Prototypical Ionic Liquid + Dipolar Aprotic Liquid Mixture: 1-Butyl-3-methylimidazolium Tetrafluoroborate + Acetonitrile. J. Phys. Chem. B, 118 (5), 1340–1352 (2014)

* A. L. Dobryakov, M. Quick, I. N. Ioffe, A. A. Granovsky, N. P. Ernsting, S. A. Kovalenko: Excited-state Raman spectroscopy with and without actinic excitation: S1 Raman spectra of trans-azobenzene. J. Chem. Phys., 140, 184310 (2014)

* N. P. Ernsting, T. Lenzer, K. Oum: Time-resolved laser spectroscopy of nonreactive processes in ionic liquids and their binary mixtures with organic solvents and CO2. Journal of Molecular Liquids, 192, 87–93 (2014)

* M. Sajadi, F. Berndt, C. Richter, M. Gerecke, R. Mahrwald, N. P. Ernsting: Observing the Hydration Layer of Trehalose with a Linked Molecular Terahertz Probe. J. Phys. Chem. Letters, 5 (11), 1845–1849 (2014)


* M. Sajadi, M. Quick, N. P. Ernsting: Femtosecond Broadband Fluorescence Spectroscopy by Down- & Up-Conversion in b-Barium Borate Crystals. Appl. Phys. Lett., 103, 173514 (2013)

* M. Sajadi, N. P. Ernsting: Excess Dynamic Stokes Shift of Molecular Probes in Solution. J. Phys. Chem. B., 117,7675 (2013)

* S. A. Kovalenko, A. L. Dobryakov: On the excitation wavelength dependence and Arrhenius behavior of stilbene isomerization rates in solution. Chemical Physics Letters., 570, 56–60 (2013)

* S. A. Kovalenko, A. L. Dobryakov, E. Pollak, N. P. Ernsting: Optical cooling of trans-stilbene. J. Chem. Phys., 139, 011101 (2013)

* C. Allolio, M. Sajadi, N. P. Ernsting, D. Sebastiani: An Ab Initio Microscope: Molecular Contributions to the Femtosecond Time-Dependent Fluorescence Shift of a Reichardt-Type Dye. Angew. Chem. Int. Ed., 52, 1813 (2013)

* M. Weinberger, F. Berndt, R. Mahrwald, N. P. Ernsting, H.A. Wagenknecht: Synthesis of 4-Aminophthalimide and 2,4-Diaminopyrimidine C-Nucleosides as Isosteric Fluorescent DNA Base Substitutes. J. Org. Chem., 78, 2589 (2013))

* X.-X. Zhang, M. Liang, N.P. Ernsting, M. Maroncelli: Conductivity and Solvation Dynamics in Ionic Liquids. J. Phys. Chem. Lett., 4, 1205 (2013)

* X.-X. Zhang, C. Schröder, N. P. Ernsting: Solvation and Dielectric Response in Ionic Liquids – Conductivity Extension of the Continuum Model. J. Chem. Phys., 138, 111102 (2013)

* M. Quick, A. Weigel, N. P. Ernsting:  Fluorescence following Excited-State Protonation of Riboflavin at N(5). J. Phys. Chem. B., 117, 5441-5447 (2013)

* X.-X. Zhang, M. Liang, N. P. Ernsting, M. Maroncelli: Complete Solvation Response of Coumarin 153 in Ionic Liquids. J. Phys. Chem. B., 117, 1205-1210 (2013)


* A. L. Dobryakov, I. Ioffe, A. A. Granovsky, N. P. Ernsting, S. A. Kovalenko: Femtosecond Raman spectra of cis-stilbene and trans-stilbene with isotopomers in solution. J. Chem. Phys., 137, 244505 (2012)

* F. Berndt, A. L. Dobryakov, M. Quick, R. Mahrwald, N. P. Ernsting, D. Lenoir, S. A. Kovalenko:  Long-lived perpendicular conformation in the photoisomerization path of 1,1'-dimethylstilbene and 1,1'-diethylstilbene. Chemical Physics Letters, 544, 39-42 (2012)

* A. Weigel, M. Pfaffe, M. Sajadi, R. Mahrwald, R. Improta, V. Barone, D. Polli, G. Cerullo, N. P. Ernsting*, Fabrizio Santoro*: Barrierless photoisomerisation of the "simplest cyanine":joining computational and femtosecond optical spectroscopies to trace the full reaction path. Phys. Chem. Chem. Phys., 14, 13350(2012)

* F. Berndt, I. Ioffe, A. A. Granovsky, R. Mahrwald, S. Tannert, S. A. Kovalenko, N. P. Ernsting: 7-Amino-Dibenzofuran-3-Carboxylate: A new probe for femtosecond dynamic microsolvation studies of biomolecules. J. Photochem Photobiol. A, 235, 164-170(2012)

* M. Maroncelli, X.-X. Zhang, M. Liang, D. Roy, N. P. Ernsting: Measurements of the Complete Solvation Response of Coumarin 153 in Ionic Liquids and the Accuracy of Simple Dielectric Continuum Predictions. Faraday Discuss., 154, 409 (2012)


* F. Berndt,M. SajadiN. P. Ernsting, R. Mahrwald: Covalent linkage N-methyl-6-oxyquinolinium betaine to trehalose. Carbohydrate Research, 346, 2960-2964 (2011)

* A.Dallmann, A. El-Sagheer, L. Dehmel, C. Mügge, C. Griesinger, N. P.Ernsting, T.Brown: Structure and dynamics of triazole-linked DNA - biocompatibility explained. J. Phys. Chem. B , 52, 14714-14717 (2011)

* M. Sajadi, M. Weinberger, H-A. Wagenknecht, N. P. Ernsting: Polar solvation dynamics in water and methanol: search for molecularity. Phys. Chem. Chem. Phys., 13, 17768-17774 (2011)

* M. Sajadi, K. E. Furse, X.-X. Zhang, L. Dehmel, S. A. Kovalenko, S. A. Corcelli, N. P. Ernsting: Detection of DNA-Ligand Binding Oscillations by Stokes-Shift Measurements. Angewandte Chemie Int. Ed., 123, 6973-6977 (2011)

* X.X. Zhang , C. Würth, L. Zhao, U. Resch-Genger, N. P. Ernsting, M. Sajadi: Femtosecond Broadband Fluorescence Upconversion Spectroscopy: Improved Setup and Photometric Correction. Rev.Sci.Instrum., 82, 063108 (2011)

* S. A. Kovalenko, A. L. Dobryakov, N. P. Ernsting: An efficient setup for femtosecond stimulated Raman spectroscopy. Rev.Sci.Instrum., 82, 063102 (2011)

* I. Ioffe, A. L. Dobryakov, A. A. Granovsky, J. L. Pérez Lustres, N. P. Ernsting:  Photoisomerisation around a fulvene double bond. Coherent population transfer to the electronic ground state? Chem. Phys. Chem., 12, 1860-1871 (2011)

* A. Weigel, A. Dobryakov, B. Klaumünzer, M. Sajadi, P. Saalfrank, N.P. Ernsting: Femtosecond Stimulated Raman Spectroscopy of Flavin After Optical Excitation. J. Phys. Chem. B , 115, 3656-3680 (2011)


* A. L. Dobryakov, S. A. Kovalenko, A. Weigel, J. L. Pérez-Lustres, J. Lange, A. Müller, N. P. Ernsting: Femtosecond Pump/Supercontinuum-Probe ( PSCP) Spectroscopy: Optimized Setup. Rev.Sci. Instrum., 81, 113106 (2010)

* S. A. Kovalenko, A.L. Dobryakov, I. Ioffe, N.P. Ernsting: Evidence for the phantom state in photoinduced cis-trans isomerization of stilbene. Chemical Physics Letters , 493, 255-258 (2010)

* A.Dallmann, L. Dehmel, T. Peters, C. Mügge, C. Griesinger, J. Tuma* and N.P. Ernsting: 2-Aminopurine incorporation perturbs the dynamics and structure of DNA. Angewandte Chemie Int. Ed., 49, 5989-5992 (2010)

* A. Weigel, N. P. Ernsting:  Excited stilbene: Intramolecular vibrational redistribution and solvation studied by femtosecond stimulated Raman spectroscopy. J. Phys. Chem. B, 114, 7879-7893 (2010)

* M. Sajadi, A. L. Dobryakov, E. Garbin, N. P. Ernsting, and S. A. Kovalenko: Time-resolved fluorescence spectra of cis-stilbene in hexane and acetonitrile. Chem. Phys. Lett., 489, 44-47 (2010)


* Photoswitchable ionophores based on 1,3-alternate calix[4]arenes bearing acridane units at the wide rim and bridged at the narrow rim by glycol chains L. Grubert , H. Hennig , U.-W. Grummt , W. Abraham Tetrahedron, 65, 8402-8406 (2009)

* THz Absorption Spectroscopy of a Liquid via a Polarity Probe. A Case Study of Trehalose/Water Mixtures M. Sajadi, Y. Ajaj, I. Ioffe, H. Weingärtner, N. P. Ernsting Angewandte Chemie Int. Ed., 49, 454-457 (2009)

* Photoinduced Dynamics of Guanosine Monophosphate in Water from Broad-Band Transient Absorption Spectroscopy and Quantum-Chemical Calculation V. Karunakaran, K. Kleinermanns, R. Improta and S. A. Kovalenko J. Am. Chem. Soc., 131, 5839-5850 (2009)

* Local THz time-domain spectroscopy of duplex DNA via fluorescence of an embedded probe A. Dallmann, M. Pfaffe, C. Mügge, R. Mahrwald, S. A. Kovalenko, N. P. Ernsting J. Phys. Chem. B, 113, 15619-15628 (2009)

* Photo, proton and metal ion responsive wide-rim acridane substituted calix[4]arenes L. Grubert, H. Hennig, W. Abraham Tetrahedron, 65, 5936-5944 (2009)

* Ultrafast Internal Conversion in a Model Anthocyanin-Polyphenol Complex: Implications for the Biological Role of Anthocyanins in Vegetative Tissues of Plant R. F. Rodigues, P. F. da Silva, K. Shimizu, A. A. Freitas, S. A. Kovalenko, N. P. Ernsting, F. H. Quina, A. Macanita Chemistry European Journal, 15, 1397-1402 (2009)

* Dynamic polar solvation is reported by fluorescing 4-Aminophthalimide faithfully despite H-bonding M. Sajadi, T. Obernhuber, S. A. Kovalenko, M. Mosquera, B. Dick, N. P. Ernsting J. Phys. Chem. A, 113 (1), 44-55 (2009)


* S. I. Druzhinin, S. A. Kovalenko, T. A. Senyushkina, A. Demeter, R. Machinek, M. Noltemeyer, and K. A. Zachariasse: Intramolecular Charge Transfer with the Planarized 4-Cyanofluorazene and Its Flexible Counterpart 4-Cyano-N-phenylpyrrole. Picosecond Fluorescence Decays and Femtosecond Excited-State Absorption. J. Phys. Chem. A, 112, 8238-8253 (2008)

* J. Bárta, R. Pohl, B. Klepetárová, N. P.Ernsting, and M. Hocek: Modular Synthesis of 5-Substituted Thiophen-2-ylC-2'-Deoxyribonucleosid. J.Org.Chem., 73, 3798-3806 (2008)

* M. Vrábel, R. Pohl, I. Votruba, M. Sajadi, S. A. Kovalenko, N. P. Ernsting and M. Hocek: Synthesis and photophysical properties of 7-deaza-2-deoxyadenosines bearing bipyridine ligand and their Ru(II)-complexes in position 7. Org. Biomol. Chem., 6, 2852-2860 (2008)

* A. L. Dobryakov and N. P. Ernsting:  Lineshapes for Resonant Impulsive Stimulated Raman Scattering with Chirped Pump and Supercontinuum Probe Pulses. J. Chem. Phys., 129, 184504 (2008)

* A.Weigel, A. L. Dobryakov, M. Veiga, J. L. Pérez Lustres: Photoinduced processes in riboflavin: superposition of pp*-np* states by vibronic coupling, transfer of vibrational coherence and population dynamics under solvent control. J. Phys. Chem A, 112, 12054-12065 (2008)

* V. Karunakaran, M. Pfaffe, I. Ioffe, T. Senyushkina, S.A. Kovalenko, R. Mahrwald, V. Farztdinov, H. Sklenar, N. P. Ernsting: Solvation oscillations and excited-state dynamics of 2-amino- and 2-hydroxy-7-nitro-fluorene and its 2?-deoxy-riboside. J. Phys. Chem., 112, 4294-4307 (2008)

* N. P. Ernsting, J. Breffke, D.Y. Vorobyev, D. A. Duncan, I. Pfeffer: Sub-Picosecond Fluorescence Evolution of Amino-Cyano-Stilbenes in Methanol: Polar Solvation obeys Continuum Theory without Evidence of Twisting. Phys. Chem. Chem. Phys., 10, 2043-2049 (2008)

* A. Dobryakov, L. P. Lustres, S.A. Kovalenko, N. P. Ernsting: Femtosecond Transient Absorption with Chirped Pump and Supercontinuum Probe: Perturbative Calculation of Transient Spectra with General Lineshape Functions, and Simplifications. Chem. Physics, 347, 127-138 (2008)

* D. Löwenich, K. Kleinermanns, V. Karunakaran, S. A. Kovalenko: Transient and Stationary Spectroscopy of Cytochrome c: Ultrafast Internal conversion Controls Photoreduction. Photochemistry and Photobiology, 84, 193-201 (2008)


* V. Karunakaran, T. Senyushkina, G. Saroja, J. Liebscher, N. P. Ernsting: 2-Amino-7-Nitro-Fluorenes in Neat and Mixed Solvents - Optical Band Shapes and Solvatochromism. J. Phys. Chem. A, 111, 10944-10952 (2007)

* M. Ostermeier, Ch. Limberg, B. Ziemer, K. Venugopal: Solvent-Dependent Oxidation of a (Pyridylmethyl)amino Ligand by FeCI3 to give a Water-Soluble Blue Fluorophore. Angew. Chem. Int. Ed., 46, 5329-5331 (2007)

* L. P. Lustres, F. Rodriguez-Prieto, M. Mosquera, T. A. Senyushkina, N. P. Ernsting and S. A. Kovalenko: Ultrafast Proton Transfer to Solvent: Molecularity and Intermediates from Solvation- and Diffusion-controlled Regimes. J. Am. Chem. Soc., 129, 5408-5418 (2007)

*A. D. Dobryakov, N. P. Ernsting:  Analysis of Electronic and Vibrational Coherence in Transient Absorption Spectroscopy in Analysis and Control of Ultrafast Photoinduced Reactions. O. Kühn, L. Wöste (eds) Springer Series in Chemical Physics, 87, Springer, Heidelberg (2007)

* L. P. Lustres, A. L. Dobryakov, A. Holzwarth, M. Veiga:  S2 → S1 Internal Conversion in ß -Carotene: Strong Vibronic Coupling Strength from Amplitude Oscillations of Transient Absorption Bands. Angew. Chem. Int. Ed., 46, 3758-3761 (2007)

* J. von Frese, S. Kovalenko, N. P. Ernsting:  Interactive Curve Resolution by using Latent Projections in Polar Coordinates. Journal of Chemometrics, 21, 2-9 (2007)


* M. Rodriguez, A. Lindinger, L. P. Lustres, S. A. Kovalenko, N. P. Ernsting, L. Wöste, G. Siegel: Femtosecond Dynamics of Proteoheparan Sulphate (HS-PG) after UV Excitation - a Readout for Studies of Arteriosclerotic Nanoplaque Formation? Biochem. Biophys. Res. Commun., 345, 886-893 (2006)

* O. Shoshana, L. P. Lustres, N. P. Ernsting, S. Ruhman: Mapping CTTS Dynamics of Na- in Tetrahydrofurane with Ultrafast Multichannel Pump-probe Spectroscopy. PCCP, 8, 2599-2609 (2006)

* D. Andreatta, S. Sen, L. P. Lustres, S. A. Kovalenko, N. P. Ernsting, C. J. Murphy, R. S. Coleman and M. A. Berg: Ultrafast Dynamics in DNA: "Fraying" at the End of the Helix. J. Am. Chem. Soc, 128, 6885-6892 (2006)

* S. A. Kovalenko, A. L. Dobryakov, V. Farztdinov: Detecting Electronic Coherence in Excited-State Electron Transfer in Fluorinated Benzenes. Phys. Rev. Lett., 96, 068301 (2006)

* Mode K. Venugopal, L. P. Lustres, L. Zhao, N. P. Ernsting, O. Seitz: Large Dynamic Stokes Shift of DNA Intercalation Dye Thiazole Orange has Contribution from a High-Frequency. J. Am. Chem. Soc., 128, 2954-2962 (2006)

* S. I. Druzhinin, N. P. Ernsting, S. A. Kovalenko, L. P. Lustres, T. A. Senyushkina, K. A. Zachariasse: Dynamics of Ultrafast Intramolecular Charge Transfer with 4-(Dimethylamino)Benzonitrile in Acetonitrile. J. Phys. Chem. A, 110, 2955-2969 (2006)


* V. A. Galievsky, S. I. Druzhinin, Attila Demeter, S. A. Kovalenko, L. P. Lustres, K. Venugopal, N. P. Ernsting, X. Allonas, M. Noltemeyer, R. Machinek, K. A. Zachariasse: Ultrafast Intramolecular Charge Transfer and Internal Conversion with Tetrafluoro-Aminobenzonitriles. ChemPhysChem, 6, 2307-2323 (2005)

* L. P. Lustres, V. M. Farztdinov, S. A. Kovalenko: Femtosecond S3 ? S1 Conversion and Structural Reorganisation of (trans)-3-Phenylprop-2-Enaldehyde and Derivatives in Solution. ChemPhysChem, 6, 1590-1599 (2005)

* L. P. Lustres, S. A. Kovalenko, M. Mosquera, T. Senyushkina, W. Flasche, N. P. Ernsting: Ultrafast Solvation of N-Methyl-6-Quinolone Probes Local Infrared Spectrum. Angew.Chem. Int. Ed., 44, 5635-5639 (2005). Angew.Chem. dt. Ausgabe, 117, 5779-5783 (2005)

* A.L. Dobryakov, S. A. Kovalenko, N. P. Ernsting: Coherent and Sequential Contributions to Femtosecond Transient Absorption Spectra of a Rhodamine Dye in Solution. J. Chem. Phys., 123, 044502 (2005)

* D. Andreatta,  L. P. Lustres, S. A. Kovalenko, N. P. Ernsting, C. J. Murphy, R. S. Coleman and M. A. Berg: Power-Law Solvation Dynamics in DNA over Six Decades in Time. J. Am. Chem. Soc., 127, 7270-7271 (2005)

* L. Zhao,  L. P. Lustres, V. Farztdinov, N. P. Ernsting: Femtosecond Fluorescence Spectroscopy by Upconversion with tilted Gate Pulses. PCCP, 7, 1716-1725 (2005)


* G. Saroja, Z. Pingzhu, N. P. Ernsting, J. Liebscher: Synthesis of Alkylated Aminofluorenes by Palladium-Catalyzed Substitution at Halofluorenes. J. Org. Chem., 69, 987-990 (2004)


* S.A. Kovalenko, L. P. Lustres, N.P. Ernsting, W. Rettig: Photoinduced Electron Transfer in Bianthryl and Cyanobianthryl in Solution: The Case for a High-Frequency Intramolecular Reaction Coordinate. J. Phys. Chem. A, 107, 10228-10232 (2003)

* A. L. Dobryakov, S. A. Kovalenko, N. P. Ernsting: Electronic and Vibrational Coherence Effects in Broadband Transient Absorption Spectroscopy with chirped Supercontinuum Probing. J. Chem. Phys., 119, 988-1002 (2003)


* S. Hess, W. B. Davis, A. A. Voityuk, N. Röch, M. E. Michel-Beyerle, N. P. Ernsting, S. A. Kovalenko, L. P. Lustres:  Excited-State Photophysics of an Acridine Derivative selectively Intercalated in Duplex DNA. ChemPhysChem, 3, 452-455 (2002)

* N. P. Ernsting, G. M. Photiadis, H. Hennig, T. Laurent: Rotational Friction Kernel in Water from the Femtosecond Time-Resolved Optical Kerr Effect of Acetonitrile/Water Mixtures. J. Phys. Chem. A, 106, 9159-9173 (2002)

* V. M. Farztdinov, N. P. Ernsting:  Solvent Dependence of Structure and Electronic Properties in the Ground and First Excited Singlet State of 4-Dimethylamino-4-Nitrostilbene (DANS) - semiempirical calculations. Chem. Physics, 277, 257-270 (2002)

* S. A. Kovalenko, R. Schanz, T. A. Senyushkina, N. P. Ernsting: Femtosecond Spectroscopy of p-Dimethylaminocyanostilbene in Solution - no Evidence for Dual Fluorescence. PCCP, 4, 703-707 (2002)


* J. Weiß, V. May, N. P. Ernsting, V. Farztdinov, A. Mühlpfordt:  Frequency and Time-Domain Analysis of Excited-State Intramolecular Proton Transfer. Double-Proton Transfer in 2,5-bis(2-Benzoxazolyl)-Hydroquinone? Chem. Phys. Lett., 346, 503-511 (2001)

* S. A. Kovalenko, R. Schanz, H. Hennig, N. P. Ernsting: Cooling Dynamics of an Optically Excited Molecular Probe in Solution from Femtosecond Broadband Transient Absorption Spectroscopy. J. Chem. Phys., 115, 3256 (2001)

* R. Schanz, S.A. Kovalenko, V. Kharlanov, N.P. Ernsting: Broad-Band Fluorescence Upconversion for Femtosecond Spectroscopy. Appl. Phys. Lett., 79, 566 (2001)

* S. A. Kovalenko, N. Eilers-König, T. A. Senyushkina, N. P. Ernsting: Charge Transfer and Solvation of Betaine-30 in Polar Solvents: a Femtosecond Broadband Transient Absorption Study. J. Phys. Chem. A, 105, 4834-4843 (2001)

* N.P. Ernsting, S.A. Kovalenko, T. Senyushkina, J. Saam, V. Farztdinov: Wave-Packet-Assisted Decomposition of Femtosecond Transient UV/vis Absorption Spectra: Application to Excited-State Intramolecular Proton Transfer in Solution. J. Phys. Chem. A, 105, 3443-3453 (2001)


* V. M. Farztdinov, R. Schanz, S. A. Kovalenko, N. P. Ernsting: Relaxation of Optically Excited p-Nitroaniline: Semiempirical Quantum-Chemical Calculations Compared to Femtosecond Experimental Results. J. Phys. Chem. A, 104, 11486-11496 (2000)

* S. A. Kovalenko, R. Schanz, V. M. Farztdinov, H. Hennig, N.P. Ernsting: Femtosecond Relaxation of Photoexcited Para-Nitroaniline: Solvation, Charge Transfer, Internal Conversion and Cooling. Chem. Phys. Lett., 323, 312-322 (2000)

* T. F. Laurent, H. Hennig, N. P. Ernsting S. A. Kovalenko: The Ultrafast Optical Kerr Effect in Liquid Fluoroform: An Estimate of the Collision-Induced Contribution. PCCP, 2, 2691-2697 (2000)

* V. M. Farztdinov, S. A. Kovalenko, Y. E. Lozovik, D. V. Lisin, Y. A. Matveets, T. S. Zhuravleva, V. M. Geskin, L. M. Zemtsov, V. V. Kozlov, G. Marowsky: Ultrafast Optical Response of Carbon Films. J. Phys. Chem. B, 104, 220-227 (2000)


* A. Mühlpfordt, R. Schanz, N. P. Ernsting, V. Farztdinov, S. Grimme: Coumarin 153 in the Gas Phase: Optical Spectra and Quantum Chemical Calculations. PCCP, 1, 3209 (1999)

* S. A. Kovalenko, A. L. Dobryakov, J. Ruthmann, N. P. Ernsting: Femtosecond Spectroscopy of Condensed Phases with Supercontinuum Probing. Phys. Rev. A, 59, 2369 (1999)

* A. Lochschmidt, N. Eilers-König, N. Heineking and N. P. Ernsting: Femtosecond Photodissociation Dynamics of Bis-Julolidine Disulfide in Polar and Apolar Solvents. J. Phys. Chem. A, 103, 1776-1784 (1999)

* Y. E. Lozovik, S. A. Kovalenko, A. L. Dobryakov, V. M. Farztdinov, Y. A. Matveets, S. P. Merkulova, and N. P. Ernsting: Fermi Liquid Study on Femtosecond Scale. Laser Physics, 9 (2), 557-563 (1999)

* E. A. Vinogradov, V. M. Farztdinov, S. A. Kovalenko, A. L. Dobryakov, Y. E. Lozovik, and Y. A. Matveets: Femtosecond Dynamics of A2B6 Metal Microcavity Polaritons. Laser Physics, 9 (1), 215 (1999)


* J. Aschenbrucker, M. Buback, N. P. Ernsting, J. Schroeder, U. Steegmuller, B. Bunsenges: Picosecond IR Study of the UV Photoinduced Decomposition of bis(Naphthoyl)Peroxide and Naphthoyl Peroxycarbonate. Phys. Chem., 102 (7), 965-971 (1998)

* J. Aschenbrucker, M. Buback, N. P. Ernsting, J. Schroeder, U. Steegmuller: Peroxyester Decarboxylation Studied by Picosecond Transient Spectroscopy. J. Phys. Chem. B, 102 (29), 5552-5555 (1998)

* J. Ruthmann, S. A. Kovalenko, D. Ouw, N. P. Ernsting: Femtosecond Relaxation of 2-Amino-7-Nitrofluorene in Acetonitrile: Observation of the Oscillatory Contribution to the Solvent response. J. Chem. Phys., 109, 5466 (1998)

* S. A. Kovalenko, J. Ruthmann, N. P. Ernsting: Femtosecond Hole-Burning Spectroscopy with Stimulated Emission Pumping and Supercontinuum Probing. J. Chem. Phys., 109, 1894 (1998)

* V. M. Farztdinov, S. A. Kovalenko, Y. A. Matveets, N. F. Starodubtsev, G. Marowsky: The Slowing-Down of Ultrafast Relaxation in C60 Films at High Femtosecond Pump Intensities. Appl. Phys. B, 66, 225-230 (1998)


* V. M. Farztdinov, A. L. Dobryakov, V. S. Letokhov, Y. E. Lozovik, Y. Matveets, S. A. Kovalenko, N. P. Ernsting: Spectral Dependence of Femtosecond Relaxation and Coherent Phonon Excitation in C60 Films. Phys. Rev. B, 56, 4176 (1997)

* J. Aschenbrücker, U. Steegmüller, N. P. Ernsting, J. Jasny: Picosecond UV Pump / IR Probe Spectrometer for the 2-5 µm Spectral Region. Appl. Phys. B, 65 (4-5), 441-444 (1997)

* S.A. Kovalenko, J. Ruthmann, N.P. Ernsting: Ultrafast Stokes Shift and Excited-State Transient Absorption of Coumarin 153 in Solution. Chem. Phys. Letters, 271, 40-50 (1997)

* S. A. Kovalenko, N. P. Ernsting, J. Ruthmann: Femtosecond Dynamic Stokes Shift in Styryl Dyes: Solvation or Intramolecular Relaxation? J. Chem. Phys., 106, 3504 (1997)


* Y. E. Lozovik, A. L. Dobryakov, N. P. Ernsting, S. A. Kovalenko: A new Method of non-Fermi Liquid Study by Pump-Supercontinuum Probe Femtosecond Spectroscopy. Physics Letters, 223 (4), 303-307 (1996)

* A. Mühlpfordt, U. Even, N. P. Ernsting: Zero-Kinetic-Energy Photoelectron Spectroscopy and Excited-State Intramolecular Proton Transfer in a `Double´ Benzoxazole. Chem. Phys. Letters, 263 (1-2), 178-184 (1996)

* T. Bultmann, N. P. Ernsting: Competition between Geminate Recombination and Solvation of Polar Radicals Following Ultrafast Photodissociation of bis(p-Aminophenyl) Disulfide. J. Phys. Chem.Chem. Phys. Letters, 100 (50), 19417-19424 (1996)

* S. A. Kovalenko, N. P. Ernsting, J. Ruthmann:  Femtosecond Holeburning Spectroscopy of the Dye DCM in Solution: the Transition from the Locally-Excited to the Charge-Transfer State. Chem. Phys. Letters, 258 (3-4), 445-454 (1996)


* T. Bultmann, D. Bingemann, N. P. Ernsting, D. Schwarzer, L. Nikowa: A new Cell Design for Off-Axis Amplification of Ultrashort Dye Lasers which Uses Total Internal Reflection. Rev. Sci. Instrum., 66 (8), 4393-4394 (1995)

* D. Bingemann, N. P. Ernsting: Femtosecond Solvation Dynamics Determining the Bandshape of Stimulated Emission from a Polar Styryl Dye. J. Chem. Phys., 102, 2691 (1995)


* K. Kemeter, D. Bingemann, T. Bultmann, N. P. Ernsting: Ultrafast Solvation of Polar Photochromic Reaction Products. Mol. Cryst. Liq. Cryst., 246, 251-257 (1994)

* A. Mühlpfordt, T. Bultmann, N. P. Ernsting, B. Dick: Excited-State Intramolecular Proton Transfer in 3-Hydroxyflavone: Deuteration Studies, Vibronic Double-Resonance Experiments, and Semiempirical (AM1) Calculations of Potential-Energy. Surfaces. Chem. Phys., 181 (3), 447-460 (1994)