title: Nitrato[N,N,N',N'-tetra-kis(1H-benzimid-azol-2-ylmeth-yl)ethane-1,2-diamine]-calcium(II) nitrate methanol trisolvate.
abstract: In the title compound, [Ca(NO(3))(C(34)H(32)N(10))]NO(3)·3CH(4)O, the Ca(II) ion is coordinated by six N atoms of the EDTB ligand {EDTB is N,N,N',N'-tetra-kis[(2-benzimidazol-yl)meth-yl]-1,2-ethanediamine} and two O atoms from the nitrate ligand, to form a distorted dodeca-hedral geometry. The crystal packing is stabilized by inter-molecular N-H⋯O, N-H⋯N and O-H⋯O 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.
authors.affiliation: Key Laboratory of Pesticides and Chemical Biology, Department of Chemistry, Central China Normal University, Wuhan, Hubei 430079, People's Republic of China.
authors.forename: Bei
authors.initials: B
authors.lastname: Huang
authors.forename: Yamei
authors.initials: Y
authors.lastname: Pei
authors.forename: Li
authors.initials: L
authors.lastname: Wang