Humboldt-Universität zu Berlin - Faculty of Mathematics and Natural Sciences - Department of Chemistry

Transition Metal Chemistry and Coordination Chemistry

Nomenclature of coordination compounds.
Complex formation – equilibria – complex stability – chelate effect.
Types and classification of ligands.
Oxidation state formalism.
Transition metal series – d electron configuration.
Coordination numbers – coordination polyhedra.
Isomerism in coordination compounds.
Systematic nomenklature of stereoisomeric coordination compounds (polyhedron symbol, configuration index, chirality symbol).
Molecular symmetry (symmetry elements – symmetry operations – multiplication of symmetry operations).
Group theory (axioms - symmetry point groups - multiplication tables - characters and character tables – irreducible and reducible representations).
Introduction to MO theory (Symmetry adapted linear combination of atomic orbitals – Symmetry adapted molecular orbitals – construction of MO schemes – MO-schemes of H2, BH3 NH3 and CH4).
Chemical bonding of d-block elements.
σ bonds – π bonds – δ bonds – classification of complexes (n-complexes – π-complexes and – σ-complexes – MO schemes of octahedral complexes – orbital splitting diagram – low-spin and high-spin complexes – spin equilibria – spektrochemical series – 18 valence electron rule – σ-donor ligands – π-donor ligands – π-acceptor ligands).
Bonding in transition metal complexes (MO-scheme of octahedral complexes with π-donor Ligands – MO-Scheme of octahedral complexes with π-acceptor ligands – Metal-ligand back bonding – MO-scheme of square-planar complexes and trigonal-bipyramidal complexes)

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