Synthesis and characterization of multifunctional coordination polymer of the type [CuxNi1−x(dedb)·2H2O]n

• Cu(II) doped Ni(II) coordination polymers have been synthesized and characterized.
• Coordination polymers are semi crystalline and possess distinct identity.
• Dominating ferromagnetic interactions influenced by Cu doping investigated.
• Polymers exhibit metallic/semiconducting properties.

New series of multifunctional homometallic and heterobimetallic coordination polymers of the type [CuxNi1−x(dedb)·2H2O]n {where dedb = dianion of 2,5-dichloro-3,6-bis(ethylamino)-1,4-benzoquinone (1); x = 1, (2); 0 (3); 0.5 (4); 0.25 (5); 0.125 (6); 0.0625 (7) and n = degree of polymerization} have been synthesized and characterized by Powder X-ray diffraction, IR, UV–visible and ESR spectroscopic techniques. Variable temperature susceptibility measurement indicates presence of strong ferromagnetic interaction. The effects of copper doping on thermal, magnetic and conducting properties of these polymers have been investigated in this communication. A rare co-existence of ferromagnetism as well as electrical conductivity has been observed in these polymers.

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