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The preparation and crystal structure of acetatobis(l-arginine)zinc(II) acetate trihydrate, the first reported X-ray structure of a zinc(II)-arginine complex |
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| Authors: | Ahmed Alagha Mohammed Elawad Hassan Nimir Alexander I. Yanovsky |
| Affiliation: | a Centre for Synthesis and Chemical Biology, Department of Pharmaceutical and Medicinal Chemistry, Royal College of Surgeons in Ireland, 123 St. Stephen’s Green, Dublin 2, Ireland b Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland c Pfizer Global Research and Development, La Jolla Laboratories, 10770 Science Center Drive, San Diego, CA 92121, USA |
| Abstract: | The synthesis and X-ray crystal structure of acetatobis(l-arginine)zinc(II) acetate trihydrate, [Zn(OAc)(l-Arg)2]OAc·3H2O is reported. In this structure, the first of a zinc(II)-arginine complex to be reported, the geometry around zinc(II) is distorted square-pyramidal containing two trans-N,O chelated l-Arg ligands in the basal plane and the acetato ligand in an axial position. The structure contains a second acetate which is salt-bridged to the δ and ω NH groups of the guanidinium side chain of an arginine ligand and also contains three hydrogen bonded water molecules. |
| Keywords: | X-ray crystal structure Zinc(II)-arginine complex Acetato ligand Salt bridged acetate |
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