catena-Poly[[bis--{2-[3-(carb--oxy-meth-yl)adamantan-1-yl]acetato-κ2O,O′}cadmium(II)]-μ-N,N′-bis--(pyridine-4-carbox-amido)-piperazine-κ2N:N′]

摘要

In the title compound, [Cd(C14H19O4)2(C16H16N4O2)]n, the CdII cation is coordinated in a distorted octahedral fashion by trans pyridyl N-atom donors from two N,N0 -bis(pyridine-4-carboxamido)piperazine (bpcp) ligands, and chelating carboxylate groups from two 2-[3-(carboxymethyl)adamantan-1- yl]acetate ligands. [Cd(adaH)(bpcp)]n coordination polymer chains are oriented along [111] and aggregate into supramolecular layers parallel to (122) by O— HO hydrogen-bonding interactions. The supramolecular three-dimensional crystal structure is then constructed by interlayer C—HO non-classical interactions. The O atoms of one of the carboxylate groups were refined as disordered over two sets of sites, with occupancies 0.553 (7) and 0.447 (7).