Kannan, Sethuraman Venkatachalam, Galmari Lee, Ha-Jin Min, Byoung Koun Kim, Woong Koo, Eunhae Do, Young Rag Yoon, Sungho 2024-01-20T17:33:38Z 2024-01-20T17:33:38Z 2021-09-02 2011-02-01 0277-5387 https://pubs.kist.re.kr/handle/201004/130652 The metal coordination geometry in the active site of metalloproteins are very different from the one of small inorganic complexes, due to the inflexibility of the ligand set from amino acid side chains different from freely moving ligand set in synthesis. Using the sterically hindered 2,6-di-(p-fluorophenyl)benzoate(L) ligand, a series of mononuclear Co(II), Ni(II) and Cu(II) complexes of general formula [M(L)(2)(Hdmpz)(2)] (where, Hdmpz = 3,5-dimethyl pyrazole) have been synthesized and characterized by the variety of spectroscopic methods. A distorted octahedral geometry in case of nickel, tetrahedral geometry for cobalt and square pyramidal in copper was observed in the X-ray studies, which also revealed that the uncoordinated oxygen atom of the carboxylate group forms intramolecular hydrogen bonding with the N-H group of the coordinated 3,5-dimethylpyrazole in case of cobalt and copper. Crown Copyright (C) 2010 Published by Elsevier Ltd. All rights reserved. English PERGAMON-ELSEVIER SCIENCE LTD BIOLOGICALLY IMPORTANT PEPTIDES MOLECULAR-STRUCTURE CRYSTAL-STRUCTURE DIIRON ENZYMES ACTIVE-SITES M-TERPHENYLS NICKEL(II) CHEMISTRY CENTERS BINUCLEAR Mononuclear transition metal complexes with sterically hindered carboxylate ligands: Synthesis, structural and spectral properties Article 10.1016/j.poly.2010.10.019 1 POLYHEDRON, v.30, no.2, pp.340 - 346 POLYHEDRON 30 2 340 346 scie scopus 000287343100019 2-s2.0-78651381794 Chemistry, Inorganic & Nuclear Crystallography Chemistry Crystallography Article BIOLOGICALLY IMPORTANT PEPTIDES MOLECULAR-STRUCTURE CRYSTAL-STRUCTURE DIIRON ENZYMES ACTIVE-SITES M-TERPHENYLS NICKEL(II) CHEMISTRY CENTERS BINUCLEAR Mononuclear metal complexes Sterically hindered carboxylate ligand 3,5-Dimethylpyrazole Crystal structures