title: Bis(pyridine-κN){N,N-[1,1'-(pyridine-2,6-di-yl)diethyl-idyne]benzene-sulfono-hydrazonato-κO,N,N',N'',O'}nickel(II).
abstract: In the crystal structure of the title compound, [Ni(C(21)H(19)N(5)O(4)S(2))(C(5)H(5)N)(2)], the metal center is seven-coordinate, with an approximate penta-gonal-bipyramidal configuration. The Ni atom is chelated by a dianionic penta-dentate Schiff base via the pyridine N atom, the two azomethine N atoms and the two sulfonyl O atoms. The latter coordinate to Ni at different distances, viz. 2.3337 (12) and 2.7988 (12) Å. Two apically coordinated pyridine mol-ecules complete the seven-coordin-ate geometry. The dihedral angle between the two pyridine ring planes is 68.25 (6)°.
authors.forename: Juahir
authors.initials: J
authors.lastname: Yusnita
authors.forename: Hapipah
authors.initials: H
authors.lastname: Mohd Ali
authors.forename: Mahmood A
authors.initials: MA
authors.lastname: Abdulla
authors.forename: Ward T
authors.initials: WT
authors.lastname: Robinson
authors.forename: Hamid
authors.initials: H
authors.lastname: Khaledi