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Electron‐Rich Organoantimony( III ) Dithiolate Complexes
Author(s) -
Avarvari Narcis,
Fourmigué Marc,
Canadell Enric
Publication year - 2004
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/ejic.200400192
Subject(s) - chemistry , octahedron , crystallography , antimony , valence (chemistry) , moiety , supramolecular chemistry , crystal structure , chalcogen , tetrathiafulvalene , band gap , stereochemistry , inorganic chemistry , molecule , organic chemistry , condensed matter physics , physics
Electron‐rich dithiolene complexes of the antimony( III ) PhSb moiety, formulated as [SbPh(dddt)] ( 1 ) (dddt: 5,6‐dihydro‐1,4‐ditthine‐2,3‐dithiolate) and [SbPh(EDT‐TTFS 2 )] ( 2 ) (EDT‐TTFS 2 : 4,5‐ethylenedithio‐tetrathiafulvalene‐4′,5′‐dithiolate), have been prepared by deprotection of the corresponding precursors and trapping of the intermediate dithiolates with PhSbCl 2 . Both complexes have been structurally characterized. The analysis of their single‐crystal X‐ray structures shows original supramolecular organizations governed by secondary Sb ··· S contacts, with distorted octahedral coordination geometries around the Sb center. Band‐structure calculations for complex 2 reveal only weak dispersion of the valence and conduction bands, with an energy gap of 1.68 eV. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)