Abstract
The complex salt (NBu 4 )2 [Cu(bcd)2] and heterobimetallic coordination polymers MM′(bcd)2 [M=2AgI, CdII, HgII or PbII; M′=NiII or CuII; bcd2−=1-benzoyl-1-cyanoethylene-2,2-dithiolate] have been synthesized from the reaction of Na2[M′(bcd)2] generated in situ with NBu 4 Br or metal salts MX2 [X=MeCO 2 − , NO 3 − , Cl− or SO 4 2− ]. The complexes were characterized by elemental analyses, molar conductance, magnetic susceptibility, i.r., n.m.r., electronic and e.s.r. spectra and solid-state conductivity measurements. The MCu(bcd)2 polymers are diamagnetic, suggesting strongly antiferromagnetically coupled CuII ions. The conductivities of the pressed pellets of the compounds are very small and they do not show semiconducting behaviour in the considered temperature range.
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