title: Dichloridobis(2-{1-[2-(1H-indol-3-yl)ethyl-iminio]eth-yl}phenolate-κO)zinc(II)-2-{1-[2-(1H-indol-3-yl)ethyl-iminio]eth-yl}phenolate (1/2).
abstract: In the mononuclear complex mol-ecule of the title compond, [ZnCl(2)(C(18)H(18)N(2)O)(2)]·2C(18)H(18)N(2)O, the Zn atom, which lies on a twofold rotation axis, is coordinated by phenolate O atoms in a tetra-hedral coordination geometry. The coordinated Schiff base uses its indole NH donor site to form a hydrogen bond to the negatively charged phenolate O atom of the uncoordinated zwitterionic Schiff base. There is an intra-molecular N-H⋯O hydrogen bond in the coordinated and uncoordinated Schiff bases. The indole NH site of the uncoordinated Schiff base does not engage in a hydrogen-bond inter-action. The CH(2)-CH(2) group in the uncoordinated Schiff base is disordered equally over two positions.
authors.affiliation: Department of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia.
authors.forename: Hapipah M
authors.initials: HM
authors.lastname: Ali
authors.forename: Mohamed Ibrahim
authors.initials: MI
authors.lastname: Mohamed Mustafa
authors.forename: Mohd Razali
authors.initials: MR
authors.lastname: Rizal
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng