Acta Cryst. (2002). E58, m242-m244  [ doi:10.1107/S1600536802007316 ]

catena-Poly[[tetra--acetatodinickel(II)]-N,N'-hexamethylenetetramine]

S. Wang, M.-L. Hu and S. W. Ng

Abstract: In the title compound, [Ni₂(C₂H₃O₂)₄(C₆H₁₂N₄)]_n, the hexamethylenetetramine molecules, occupying a special position of mm2 symmetry, link adjacent tetraacetatodinickel units, located in a special position of 2/m symmetry, into zigzag chains that run along the b axis of the unit cell. The Ni atom in the binuclear unit is five-coordinate and has a square-pyramidal geometry. It is displaced by 0.203  (3)  Å out of the basal plane of the four O atoms towards the apical N atom of the adjacent hexamethylenetetramine molecule and away from the second Ni atom of the binuclear unit. The two Ni atoms are separated by 2.622  (1)  Å.

Online 30 April 2002

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