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Synthesis and characterization of monomeric tellurolato complexes of zinc and cadmium: crystal and molecular structure of bis[2-(4,4-dimethyl-2-oxazolinyl)phenyl]ditelluride

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Title Synthesis and characterization of monomeric tellurolato complexes of zinc and cadmium: crystal and molecular structure of bis[2-(4,4-dimethyl-2-oxazolinyl)phenyl]ditelluride
 
Creator MUGESH, G
SINGH, HB
BUTCHER, RJ
 
Subject single-source precursors
volatile cvd precursors
ii-vi semiconductors
chalcogenolato complexes
pyridineselenolate complexes
selenolato complexes
metal-complexes
ligands
mercury
decomposition
intramolecular coordination
ditelluride
monomeric tellurolates
chirality
 
Description The synthesis and characterization of homoleptic zinc(II) and cadmium(II) tellurolates incorporating the intramolecularly chelating oxazoline ligand are described. The derivatives, M[Te(Ox)](2) [M = Zn (4) or Cd (5) and Ox = 2-(4,4-dimethyl-2-oxazolinyl)phenyl], are prepared in good yield via the metathesis reactions of MCl2 with lithium arenetellurolate, OxTe(-)Li(+) (2). Attempts to synthesise the mercury complex led to isolation of the corresponding ditelluride (3). Crystal structure of the ditelluride was determined by X-ray diffraction method. Of particular interest in the structure is the intramolecular interaction of the sp(2) nitrogen with the tellurium. The strength of the Te...N nonbonded interactions in this compound [Te(1)...N(1): 2.864(5), Te(2)...N(2): 2.694(5) Angstrom] is found to be stronger than the similar interactions found in related compounds. The zinc and cadmium complexes are quite stable in the solid state and highly soluble in common non-polar organic solvents. The variable temperature NMR spectra of Zn[Te(Ox)](2), (4) and Cd[Te(Ox)](2) (5) show the complexes to be chiral at low temperatures. (C) 1999 Elsevier Science S.A. .
 
Publisher ELSEVIER SCIENCE SA
 
Date 2011-07-28T22:20:36Z
2011-12-26T12:47:23Z
2011-12-27T05:44:48Z
2011-07-28T22:20:36Z
2011-12-26T12:47:23Z
2011-12-27T05:44:48Z
1999
 
Type Article
 
Identifier JOURNAL OF ORGANOMETALLIC CHEMISTRY, 577(2), 243-248
0022-328X
http://dx.doi.org/10.1016/S0022-328X(98)01069-9
http://dspace.library.iitb.ac.in/xmlui/handle/10054/7510
http://hdl.handle.net/10054/7510
 
Language en