{?-6,6'-Dieth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato}trinitratoholmium(III)nickel(II).

ABSTRACT: In the title heteronuclear Ni(II)-Ho(III) complex (systematic name: {?-6,6'-dieth-oxy-2,2'-[ethane-1,2-diylbis(nitrilo-methyl-idyne)]diphenolato-1?(4)O(1),O(1'),O(6),O(6'):2?(4)O(1),N,N',O(1')}trinitrato-1?(6)O,O'-holmium(III)nickel(II)), [HoNi(C(20)H(22)N(2)O(4))(NO(3))(3)], with the hexa-dentate Schiff base compartmental ligand N,N'-bis-(3-ethoxy-salicyl-idene)ethyl-enediamine (H(2)L), the Ho and Ni atoms are doubly bridged by two phenolate O atoms of the Schiff base ligand. The coordination of Ni is square-planar with the donor centers of two imine N atoms and two phenolate O atoms. The holmium(III) center has a tenfold -coordination environment of O atoms, involving the phenolate O atoms, two eth-oxy O atoms and two O atoms each from the three nitrates. Weak C-H?O and O?Ni [3.383?(4)?Å] inter-actions generate a two-dimensional zigzag sheet.

SUBMITTER: Xiao YA 

PROVIDER: S-EPMC2961363 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature