Two novel luminescent zinc supramolecular networks with nicotinate derivatives by hydrothermal process

Ye, Song; Yan, Bing; Chen, Zhenxia

doi:10.1016/j.inoche.2005.09.007

Cited by 5 publications

(1 citation statement)

References 21 publications

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“…The zinc and cobalt analogues (Zhang et al, 2005;Song et al, 2005;Zhang & Ng, 2005a) of the title salt are isostructural with the previously reported polymorph of [Ni(H 2 O) 6 ](C 6 H 4 NO 3 ) 2 (Zhang & Ng, 2005b). It is worth mentioning that although the authors claimed a lactim tautomer of the organic anion to be present in all these structures, the C-O bond length seems to indicate of a lactam tautomer as in the case of the title compound.…”

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confidence: 63%

The crystal structure of a new polymorph of hexaaquanickel(II) bis(6-oxo-1,6-dihydropyridine-3-carboxylate)

et al. 2015

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In a new polymorph of the title salt, [Ni(H2O)6](C6H4NO3)2, the metal atom of the cationic complex lies on a symmetry centre and is coordinated by six water molecules to provide a quite regular octahedral coordination environment. These cations interact with 6-oxo-1,6-dihydropyridine-3-carboxylate anions through electrostatic interactions and by means of O—H⋯O and N—H⋯O hydrogen bonds involving the carboxylate, keto and protonated imine groups of the anion, and the coordinating water molecules from the cationic complex entity to generate a supramolecular three-dimensional architecture. The previously reported polymorph of this compound presents a network of hydrogen bonds, in which the organic anions establish mutual hydrogen-bonding interactions involving their keto and protonated imine groups.

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