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1‐D‐Tin(II) Phenylchalcogenolato Complexes ∞ 1 [Sn(EPh) 2 ] (E = S, Se, Te) – Synthesis, Structures, Quantum Chemical Studies and Thermal Behaviour
Author(s) -
Eichhöfer Andreas,
Jiang JiJun,
Sommer Heino,
Weigend Florian,
Fuhr Olaf,
Fenske Dieter,
Su ChengYong,
Buth Gernot
Publication year - 2010
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.200900940
Subject(s) - tin , chemistry , crystallography , monomer , molecule , stoichiometry , chemical bond , crystal structure , selenium , sublimation (psychology) , organic chemistry , polymer , psychology , psychotherapist
A series of three 1‐D‐tin(II) phenylchalcogenolato complexes ∞ 1 [Sn(EPh) 2 ] (E = S, Se, Te) were synthesized in yields > 80 % by reaction of SnCl 2 with two equivalents of PhESiMe 3 in organic solvents. In the crystal the molecules form two different types of one‐dimensional chains. In ∞ 1 [Sn(SPh) 2 ] the tin atoms are distorted trigonal pyramidal coordinated by sulfur atoms (two bonds within a monomer and one longer bond between neighbored monomers), while in ∞ 1 [Sn(EPh) 2 ] (E = Se, Te) the tin atoms show contacts to two neighbored monomers leading to a fourfold coordination of the tin atoms by either selenium or tellurium atoms. The bond situation is discussed on the basis of density functional calculations. Thermal treatment mostly leads to the formation of the corresponding phase pure tin(II) chalcogenides however sublimation plays an increasing role ongoing from the tellurolato to the thiolato complex especially for the use of vacuum conditions. The investigation of the volatile cleavage products reveals the occurence of more complex reactions in the gas phase than the formal stoichiometric cleavage of EPh 2 (E = S, Se, Te) with formation of SnE.