New Tris(thioimidazolyl)borate Ligands and Some Zinc Complexes Thereof
✍ Scribed by Mohamed M. Ibrahim; Mouhai Shu; Heinrich Vahrenkamp
- Publisher
- John Wiley and Sons
- Year
- 2005
- Tongue
- English
- Weight
- 184 KB
- Volume
- 2005
- Category
- Article
- ISSN
- 1434-1948
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
In order to improve the encapsulation of metal ions coordinated by tris(thioimidazolyl)borate ligands, four new such ligands with o‐substituted phenyl substituents were synthesised as well as ones with p‐tolyl and cyclohexyl substituents. In order to provide a basis for their bioinorganic zinc complex chemistry, they were converted to some zinc‐halide, ‐carboxylate, ‐nitrate, ‐phenolate and ‐benzylate complexes. They form zinc‐perchlorate complexes which are productive starting materials for the attachment of alcohols and alkoxides at zinc, thereby yielding new structural models for the zinc enzyme alcohol dehydrogenase. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
📜 SIMILAR VOLUMES
Attachment of 2-pyridylmethyl units to cysteine amide and zinc perchlorate MBPA forms the ionic compound [L • Zn] ClO 4 , presumed to be a thiolate bridged dimer. Structure 2-mercaptobenzylamine leads to the new tripodal N 3 S ligands N α -(4-methylbenzoyl)-L-cysteine-bis(2-pyridylmeth-determination
A series of three new quadridentate ligands was synthesized by reaction of the haloacetylated amino acid esters L- BrAc-Phe-OMe (4a), L-BrAc-Lys(Z)-OMe (4b), and ClAc-Gly-OEt (4c), respectively, with bis(picolyl)amine (bpa, 5). The obtained products L-bpaAc-Phe-OMe (3a), L-bpaAc-Lys(Z)-OMe (3b), and