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Title: Synthesis, characterization and electrical conductivities of mixed-ligand (N, S/Se) heterobimetallic coordination polymers and their I₂-doped products
Authors: Singh, Nanhai
Prasad, Akhilesh
Issue Date: May-2008
Publisher: CSIR
IPC Code: Int.Cl. ⁸ C07F1/08; C07F1/10; C07F3/06; C07F3/08; C07F7/24; C07F15/04
Abstract: New mixed-ligand heterometallic coordination polymers of the type [MM΄(Et₂dtc)₂(bzta)₂], [MM'(XCN)₂(Et₂dtc)₂], [Cu₂Hg(SCN)₂(bzta)₂] and [CuAg(SCN)(bzta)] [M = Ni(II) or Cu(II); M' = Ni(II), Zn(II), Cd(II), Hg(II), Pb(II) or 2Ag(I); X= S or Se; bzta⁻ = benzothiazole-2-thiolate (C₆H₄NSCS⁻); Et₂dtc⁻ = diethyldithiocarbamate {(C₂H₅)₂NCS₂⁻}] have been prepared by reacting the above mixed-ligands and heterometal salts in a single-pot reaction and characterized by spectroscopic methods (IR, FT-Raman, Electronic and EPR), magnetic susceptibility, and conductivity measurements. All the complexes exhibit σrt close to 10⁻⁸ ohm⁻¹ cm⁻¹ and are insulators in the 303-393 K temperature range. The σrt of I₂-doped products of some of the complexes are increased in 10-10² order of magnitude and show the behaviour of semiconductors over the given temperature range.
Page(s): 650-656
ISSN: 0376-4710
Appears in Collections:IJC-A Vol.47A(05) [May 2008]

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