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Diaquabis-[3-(hydroxy-imino)-butanoato]nickel(II).


ABSTRACT: In the neutral, mononuclear title complex, [Ni(C(4)H(6)NO(3))(2)(H(2)O)(2)], the Ni atom lies on a crystallographic inversion centre within a distorted octa-hedral N(2)O(4) environment. Two trans-disposed anions of 3-hydroxy-imino-butanoic acid occupy four equatorial sites, coordinated by the deprotonated carboxyl-ate and protonated oxime groups and forming six-membered chelate rings, while the two axial positions are occupied by the water O atoms. The O atom of the oxime group forms an intra-molecular hydrogen bond with the coordinated carboxyl-ate O atom. The complex mol-ecules are linked into chains along b by hydrogen bonds between the water O atom and the carboxyl-ate O of a neighbouring mol-ecule. The chains are linked by further hydrogen bonds into a layer structure.

SUBMITTER: Dudarenko NM 

PROVIDER: S-EPMC2983569 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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Diaquabis-[3-(hydroxy-imino)-butanoato]nickel(II).

Dudarenko Nikolay M NM   Kalibabchuk Valentina A VA   Malysheva Maria L ML   Iskenderov Turganbay S TS   Gumienna-Kontecka Elżbieta E  

Acta crystallographica. Section E, Structure reports online 20100210 Pt 3


In the neutral, mononuclear title complex, [Ni(C(4)H(6)NO(3))(2)(H(2)O)(2)], the Ni atom lies on a crystallographic inversion centre within a distorted octa-hedral N(2)O(4) environment. Two trans-disposed anions of 3-hydroxy-imino-butanoic acid occupy four equatorial sites, coordinated by the deprotonated carboxyl-ate and protonated oxime groups and forming six-membered chelate rings, while the two axial positions are occupied by the water O atoms. The O atom of the oxime group forms an intra-mo  ...[more]

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