Science and Technology Production
Characterization of two new zinc(II) complexes with saccharinate and imodazole or benzimidazole as ligans
Article
Authorship:
Patricia A.M. Williams ; Evelina G.Ferrer ; CORREA, MARIA JIMENA ; Enrique J.Baran ; Eduardo E.Castellano ; Oscar E.PiroDate:
2004Publishing House and Editing Place:
SPRINGER/PLENUM PUBLISHERSMagazine:
JOURNAL OF CHEMICAL CRYSTALLOGRAPHY, vol. 34 (pp. 285-290) SPRINGER/PLENUM PUBLISHERSSummary *
The crystal structure of the complexes [Zn(sac)2(im)2] (1) and [Zn(sac)2(bzim)2]2.2Et- OH.H2O (2) (sac = saccharinate anion; im = imidazole; bzim = benzimidazole; EtOH= ethanol) was determined by single crystal X-ray diffractometry. Complex 1 crystallizes in the monoclinic P21=n space group with a = 9.1585(5), b = 16.4409(6), c = 15.0249(5) Å, b = 94.079(1)°, and Z =4, whereas complex 2 belongs to the triclinic space group P1 with a = 10.8500(2), b = 12.4860(2), c = 13.5640(3) Å,a = 115,696(1), b = 100.086(1), g = 102.169(1)°, and Z =1. In both complexes, the Zn(II) cations are in a slightly distorted tetrahedral ZnN4 environment, coordinated to two saccharinate anions and to two imidazole (1) and to two benzimidazole (2) molecules. The complexes were also characterized by means of infrared spectroscopy and their thermal behavior investigated by means of thermogravimetric and differential thermal analytical techniques. Information provided by the agent in SIGEVAKey Words
Zinc(II); saccharinate; imidazolethermal behaviorIR-spectrabenzimidazole