TITLE:
Structural Aspects of Monomeric Platinum Coordination Complexes
AUTHORS:
Milan Melník, Peter Mikuš
KEYWORDS:
Structure, Platinum, Monomeric, Isomers, Trans-Effect
JOURNAL NAME:
Materials Sciences and Applications,
Vol.5 No.8,
June
27,
2014
ABSTRACT:
This review covers structural parameters of almost two thousand
monomeric Pt coordination complexes. The Pt is found in the oxidation states
zero, +1, +2, +3 and +4, from which oxidation state +2 by far prevails. There
is a wide variety of donor atom ligands from uni-, bi-, ter- and tetradentate
with over seventeen types of donor atoms, from which by far prevails P and N
donor ligands and chlorine atom. The Pt(0) atoms are two-, three- and four-coordinated;
Pt(I) and Pt(III) are only four-coordinated, Pt(II) are four- and five-coordinated,
and Pt(IV) are five- and six-coor-dinated. About 10% of these complexes exist
as isomers. Included are distortion (65%), cis-trans (30%), mixed isomers and ligand isomerism. The structural parameters are
discussed in terms of the coordination about the platinum atom, and
correlations are drawn between donor atom, bond length and interbond angles
with attention to any trans-effect.