Acta Cryst. (2008). E64, m1621  [ doi:10.1107/S1600536808037859 ]

Nitrato[N,N,N',N'-tetrakis(1H-benzimidazol-2-ylmethyl)ethane-1,2-diamine]calcium(II) nitrate methanol trisolvate

B. Huang, Y. Pei and L. Wang

Abstract: In the title compound, [Ca(NO₃)(C₃₄H₃₂N₁₀)]NO₃·3CH₄O, the Ca^II ion is coordinated by six N atoms of the EDTB ligand {EDTB is N,N,N',N'-tetrakis[(2-benzimidazolyl)methyl]-1,2-ethanediamine} and two O atoms from the nitrate ligand, to form a distorted dodecahedral geometry. The crystal packing is stabilized by intermolecular N-HO, N-HN and O-HO hydrogen bonds, which link the constituent units into a three-dimensional network. The uncoordinated nitrate anion is disordered over two sites, with fixed occupancies of 0.77 and 0.23.

Online 26 November 2008

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