Synthesis and structure characterization of two cadmium coordination polymers based on μ2-bridging bidentate hydrazine ligand

D, SANTHOSH SHANTHAKUMAR ; R, PRADEEP ; B. N., SIVASANKAR

Abstract

Synthesis, single crystal structures, spectral and thermal characteristics of two cadmium coordination polymers, viz., [Cd(NO3)2(N2H4)2] (1) [Cd(C3H2O4)(N2H4)] (where C3H2O4 is malonate) (2) are reported. The μ2-bridging bidentate binding mode of the crystallographically unique hydrazine ligands in
(1) leads to a one-dimensional polymeric structure extending along c axis. The central Cd(II) in (2) exhibits hepta-coordination and is bonded to a unique malonate anion which exhibits a μ3-bridging pentadentate coordination, extending the structure along the a axis. The bridging bidentate binding of the crystallographically independent hydrazine ligand extends along b axis resulting in a 2-D structure.


Keyword(s)

Coordination polymers, Cadmium coordination polymers, Crystal structures, Hydrazines, Malonates, μ2-Bridging bidentate, μ3-Bridging pentadentate

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