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Supramolecular Assembling of Complex Tellurium Salts: Synthesis and Crystal Structures of {Cs[PhTeCl 4 ]·CH 3 OH} and Cs[PhTeBr 4 ]
Author(s) -
Schulz Lang Ernesto,
de Oliveira Gelson Manzoni,
Fernandes Jr. Ramão Marceli,
Vázquez–López Ezequiel M.
Publication year - 2004
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200400014
Subject(s) - supramolecular chemistry , chemistry , bromine , methanol , tellurium , alkali metal , crystallography , crystal structure , molecule , inorganic chemistry , organic chemistry
Abstract The direct reaction between PhTeCl 3 and CsCl in methanol affords {Cs[PhTeCl 4 ]·CH 3 OH}. Cs[PhTeBr 4 ] was prepared by refluxing [2‐Br‐C 5 NH 5 ][PhTeBr 4 ] and CsCl in ethanol in the presence of an excess of HBr. In {Cs[PhTeCl 4 ]·CH 3 OH} the [PhTeCl 4 ] — units form dimers by secondary Te···Cl bonds with methanol molecules bridging adjacent Cs + cations. In both compounds, the alkali metal cation interacts secondarily with the chlorine and bromine Te‐ligands, achieving singular coordination polyhedrons and holding the lattices in supramolecular tridimensional assemblies. The new complexes, {Cs[PhTeCl 4 ]·CH 3 OH} and Cs[PhTeBr 4 ], crystallize in the space groups P2 1 /c and P2 1 /n, respectively. Only one such structure has been reported before.