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Diaquabis-[3-(hydroxy-imino-)butanoato]nickel(II): a triclinic polymorph.


ABSTRACT: The title centrosymmetric mononuclear complex, [Ni(C(4)H(6)NO(3))(2)(H(2)O)(2)], is a polymorph of the previously reported complex [Dudarenko et al. (2010 ?). Acta Cryst. E66, m277-m278]. The Ni(II) atom, lying on an inversion center, is six-coordinated by two carboxyl-ate O atoms and two oxime N atoms from two trans-disposed chelating 3-hydroxy-imino-butanoate ligands and two axial water mol-ecules in a distorted octa-hedral geometry. The hydr-oxy group forms an intra-molecular hydrogen bond with the coordinated carboxyl-ate O atom. The complex mol-ecules are linked in stacks along [010] by a hydrogen bond between the water O atom and the carboxyl-ate O atom of a neighboring mol-ecule. The stacks are further linked by O-H?O hydrogen bonds into a layer parallel to (001).

SUBMITTER: Kalibabchuk VA 

PROVIDER: S-EPMC2983669 | biostudies-literature | 2010 Feb

REPOSITORIES: biostudies-literature

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Diaquabis-[3-(hydroxy-imino-)butanoato]nickel(II): a triclinic polymorph.

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

Acta crystallographica. Section E, Structure reports online 20100220 Pt 3


The title centrosymmetric mononuclear complex, [Ni(C(4)H(6)NO(3))(2)(H(2)O)(2)], is a polymorph of the previously reported complex [Dudarenko et al. (2010 ▶). Acta Cryst. E66, m277-m278]. The Ni(II) atom, lying on an inversion center, is six-coordinated by two carboxyl-ate O atoms and two oxime N atoms from two trans-disposed chelating 3-hydroxy-imino-butanoate ligands and two axial water mol-ecules in a distorted octa-hedral geometry. The hydr-oxy group forms an intra-molecular hydrogen bond wi  ...[more]

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