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Synthesis and Structural Characterization of Trinuclear, Amidate‐Bridged Heterobimetallic Complexes [{Pt(NH 3 ) 2 (NHCO t Bu) 2 } 2 M]X n (M = Mn, Fe, Co, Ni, Cu; X = BF 4 − , ClO 4 − ; n = 2 or 3)
Author(s) -
Chen Wanzhi,
Matsumoto Kazuko
Publication year - 2002
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200210)2002:10<2664::aid-ejic2664>3.0.co;2-t
Subject(s) - chemistry , crystallography , crystal structure , metal , platinum , oxygen atom , coordination sphere , ion , hydrogen bond , atom (system on chip) , molecule , stereochemistry , catalysis , biochemistry , organic chemistry , computer science , embedded system
A family of trinuclear heterometallic complexes of the formula [{Pt(NH 3 ) 2 (NHCO t Bu) 2 } 2 M]X n (M = Mn 2+ , Fe 3+ , Co 2+ , Ni 2+ , Cu 2+ ; X = BF 4 − , ClO 4 − ) have been prepared by reacting [Pt(NH 3 ) 2 (NHCO t Bu) 2 ]·2H 2 O and the corresponding metal ions in water. They were characterised by elemental analysis, and their structures were determined by X‐ray crystallography. The crystal structures of all the complexes consist of trinuclear [{Pt(NH 3 ) 2 (NHCO t Bu) 2 } 2 M] n + (M = Mn 2+ , Fe 3+ , Co 2+ , Ni 2+ , Cu 2+ ) cations with M located at the centre. The platinum atoms are linked to the central metal atom through their amidate ligands also by Pt−M interactions. The coordination sphere of the Pt atom is completed by two NH 3 and two amidate ligands in cis positions to each other. The central heterometal ions are coordinated by four oxygen atoms of the amidate ligands, adopting either a square‐planar or a tetrahedral conformation. Crystal structure determinations of all the complexes revealed extensive systems of N−H ··· O hydrogen bonds between the coordinated NH 3 ligands and the counteranions. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)