The structural aspects of dinuclear complexes of general formula trans-[(a)2Pt(1-MeC)2MY](n+) (where M = Pd, Cu, Hg; a = NH3, amine; Y = neutral or monoanionic ligand; 1-MeC- = 1-methylcitosinate anion) are discussed. In these complexes the metals are bridged by two nearly coplanar nucleobases in trans position with respect to Pt which presents a square pyramidal coordination with M at the apex. The Pt-M distances are particularly short in the Pd and Cu derivatives (about 2.5 Å), while a mean value of ca. 2.8 Å was detected in the Pt-Hg ones. The metal-metal interaction in the Pt,Pd dimers (d8-d8 systems) has been studied by extended Huckel calculations and the linkage is formally analyzed by adding one and two electrons for describing the systems with d8-d9 and d8-d10 electron configurations.
|Number of pages||4|
|Journal||Bollettino Chimico Farmaceutico|
|Publication status||Published - 1996 Sep 1|
- EHMO calculations
- metal complexes
ASJC Scopus subject areas
- Molecular Medicine