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Diaquabis[3-(hydroxyimino)butanoato]nickel(II): a triclinic polymorph

V.A. KalibabchukNikolay M. DudarenkoDepartment of Chemistry, Kiev National Taras Shevchenko University, Volodymyrska Street 64, 01601 Kiev, UkraineTurganbay S. IskenderovDepartment of Chemistry, Karakalpakian University, Universitet Keshesi 1, 742012 Nukus, UzbekistanMaria L. MalyshevaDepartment of Chemistry, Kiev National Taras Shevchenko University, Volodymyrska Street 64, 01601 Kiev, UkraineElżbieta Gumienna‐KonteckaFaculty of Chemistry, University of Wrocław, 14 F. Joliot-Curie Street, 50-383 Wrocław, Poland

Acta Crystallographica Section E Structure Reports Onlinejournal2010en

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Аннотация

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).

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Metal complexes synthesis and properties Crystal structures of chemical compounds Magnetism in coordination complexes

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DOI: 10.1107/s1600536810006306

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