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• W1969321853 abstract "Abstract This paper presents the solid-state electrical conductance properties of a series of complex bimetallic salts of the form [M(N–N) 3 ][Cu(MNT) 2 ] (M=Fe(II), Co(II), Ni(II), or Cd(II); N–N=1,10-phenanthroline (phen) or ethylenediamine (en); MNT 2− =maleonitriledithiolate) and bridged heterobimetallic complexes Ag 2 [Cu(MNT) 2 ] and Hg[Cu(MNT) 2 ] that have been prepared by treatment of complex salt Na 2 [Cu(MNT) 2 ] (generated in situ) with one equivalent of cationic complexes [M(N–N) 3 ]X 2 or Hg(CH 3 COO) 2 and two-equivalent of AgNO 3 in aqueous–methanol mixture and characterised by relevant spectroscopies (IR, EPR, UV-Visible) as well as by powder XRD spectra. Solution conductivity measurements in 10 −3 M DMSO solution revealed 1:1 electrolytic behaviour of the bimetallic salts. Diamagnetism together with powder EPR spectra for Ag 2 [Cu(MNT) 2 ] and Hg[Cu(MNT) 2 ] show strong antiferromagnetic interaction between two adjacent copper(II) centers at room temperature. Majority of the complexes exhibited compressed pellet σ rt in 8.19×10 −11 to 5.37×10 −7 S cm −1 range and show semiconductivity over the 303–383 K temperature range. Conductivity of both coordination polymers are appreciably higher compared to the bimetallic salts. For the salts [Co(phen) 3 ][Cu(MNT) 2 ], [Ni(phen) 3 ][Cu(MNT) 2 ] and bridged complexes Ag 2 [Cu(MNT) 2 ] and Hg[Cu(MNT) 2 ] the conductivity remarkably increases, i.e., 10 2 to 10 3 order of magnitude at elevated temperature showing some sort of phase transformation producing S⋯S intermolecular contact." @default.
• W1969321853 created "2016-06-24" @default.
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• W1969321853 date "2000-06-01" @default.
• W1969321853 modified "2023-09-26" @default.
• W1969321853 title "Electrical properties of complex bimetallic salts [M(N–N)3]2+[Cu(MNT)2]2− and heterobimetallic AgI–CuII/HgII–CuII bis(maleonitriledithiolato) bridged coordination polymers" @default.
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• W1969321853 doi "https://doi.org/10.1016/s1466-6049(00)00023-4" @default.
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