Acta Cryst. (2009). E65, m728  [ doi:10.1107/S1600536809020662 ]

Bis(5,5,7,12,12,14-hexamethyl-1,4,8,11-tetraazacyclotetradecane-⁴N)(-L-malato-⁴O¹,O²:O⁴,O^4')dinickel(II) bis(perchlorate) monohydrate

G.-C. Ou, Q. Zhou and S. W. Ng

Abstract: In the crystal structure of the title dinuclear compound, [Ni₂(C₄H₄O₅)(C₁₆H₃₆N₄)₂](ClO₄)₂·H₂O, the bridging dicarboxylate dianion O,O'-chelates to two Ni atoms, both of which are also chelated by the N-macrocylic ligand. The Ni atoms exhibit a distorted octahedral coordination. N-HO and O-HO hydrogen bonds link the cations and the uncoordinated water molecules into a layer structure; the perchlorate anions occupy the space between adjacent layers, and are only weakly linked to the layers. One of the perchlorate anions is disordered over two sets of sites in a 3:2 ratio.

Online 6 June 2009

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