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Unprecedented Coordination Environment in Poly-{μ-bis(methylthienyltellane)( chlorido)(thienyl)platinum(II)}
-
Raija Oilunkaniemi
,
Risto S. Laitinen
Published/Copyright:
June 2, 2014
Abstract
The reaction of methylthienyltellane TeMeTh (Th = thienyl, C4H3S) and [PtCl2(NCPh)2] affords in addition to the main product [PtCl2(TeMeTh)2], also small amounts of yellow crystalline [PtCl(Th)(TeMeTh)2]n that exhibits unprecedented quasi-octahedral coordination environment around platinum(II). There are four weak Pt-Te bonds of 2.898(1) and 3.419(1) Å forming an approximate squareplane the quasi-octahedral coordination being completed by a Pt-Cl bond of 2.400(2) Å and a Pt-C bond of 1.998(8) Å of a discrete thienyl ring. The TeMeTh acts as a bridging ligand. Tellurium shows a distorted tetrahedral coordination and the weak Pt-Te bonds can be rationalized in terms of sharing one tellurium electron lone-pair by two adjacent platinum centers. The closest contacts between the polymer chains involve thienyl rings.
Keywords: Poly{μ-bis(methylthienyltellane)(chlorido)- (thienyl)platinum(II)}; Crystal Structure; Quasi-Octahedral Coordination
Received: 2003-12-4
Published Online: 2014-6-2
Published in Print: 2004-5-1
© 1946 – 2014: Verlag der Zeitschrift für Naturforschung
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Keywords for this article
Poly{μ-bis(methylthienyltellane)(chlorido)- (thienyl)platinum(II)};
Crystal Structure;
Quasi-Octahedral Coordination
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