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Acta Cryst. (2009). E65, m477 [ doi:10.1107/S1600536809011702 ]
Abstract: In the title compound, [Ni(C6H16N2)2](NO3)2·H2O, the bis(2,3-dimethylbutane-2,3-diamine)nickel(II) complex cation possesses a relatively undistorted square-planar geometry about the Ni atom, which lies on an inversion centre and is coordinated by four N atoms from two symmetry-related 2,3-diamino-2,3-dimethylbutane (tmen) ligands. The amine groups are N-H
O hydrogen bonded to the nitrate anions, which are, in turn, linked by interstitial water molecules lying on a twofold axis. The infinite zigzag chains thus formed along [001] are further connected to each other by N-HO hydrogen bonds towards the water molecules, forming layers of two-dimensional hydrogen-bonded arrays.
Online 2 April 2009
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