A concise review is provided of the contributions that various spectroscopic methods have made to our understanding of the physical and electronic structures of mononuclear molybdenum enzymes. Contributions to our understanding of the structure and function of each of the major families of these enzymes is considered, providing a perspective on how spectroscopy has impacted the field.
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http://dx.doi.org/10.3390/molecules27154802 | DOI Listing |
Acc Chem Res
July 2024
State Key Laboratory of Fine Chemicals, Frontier Science Center for Smart Materials, Dalian University of Technology, Dalian 116024, P. R. China.
Int J Mol Sci
April 2024
Division of Materials Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia.
This study aimed to synthesize molybdenum complexes coordinated with an aroyl hydrazone-type ligand (HL), which was generated through the condensation of 2-hydroxy-5-nitrobenzaldehyde with benzhydrazide. The synthesis yielded two types of mononuclear complexes, specifically [MoO(L)(MeOH)] and [MoO(L)(HO)], as well as a bipyridine-bridged dinuclear complex, [(MoO(L))(4,4'-bpy)]. Those entities were thoroughly characterized using a suite of analytical techniques, including attenuated total reflectance infrared spectroscopy (IR-ATR), elemental analysis (EA), thermogravimetric analysis (TGA), and single-crystal X-ray diffraction (SCXRD).
View Article and Find Full Text PDFMolecules
February 2024
Department of Chemistry, Graduate School of Science, Osaka Metropolitan University, Sumiyoshi-ku, Osaka 558-8585, Japan.
The reaction of molybdenum complexes with a tris(pyrazolyl)borate ligand (EtN[TpMo(CO)] and EtN[Tp*Mo(CO)] (Tp = hydridotris(pyrazolyl)borate, Tp* = hydridotris(3,5-dimethylpyrazolyl)borate)) and InBr at a 1:1 molar ratio afforded molybdenum-indane complexes (EtN[TpMo(CO)(InBr)] and EtN[Tp*Mo(CO)(InBr)] ). In addition, tungsten-indane complexes, EtN[TpW(CO)(InBr)] and EtN[Tp*W(CO)(InBr)] , were obtained by the reaction of corresponding tungsten complexes. Complex reacted with HO to form the hydrido complex Tp*W(CO)H, in which the W-In bond was cleaved.
View Article and Find Full Text PDFChemistry
April 2024
Bioinorganic Chemistry, Institute of Biochemistry, University of Greifswald, 17489, Greifswald, Germany.
Based on their general spacial flexibility, their Lewis and Brønsted basicity, and ability to mimic second sphere effects the 1,5-diaza-3,7-diphosphacyclooctane ligand family and their complexes have regained substantial scientific interest. It was now possible to structurally analyze a recently reported member of this family with p-tolyl and t-butyl substituents on P and N, respectively, (P N ). Notably, the ligand crystallizes with a 'twisted' backbone.
View Article and Find Full Text PDFInt J Mol Sci
January 2024
Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000 Zagreb, Croatia.
A series of polynuclear, dinuclear, and mononuclear Mo(VI) complexes were synthesized with the hydrazonato ligands derived from 5-methoxysalicylaldehyde and the corresponding hydrazides (isonicotinic hydrazide (HL), nicotinic hydrazide (HL), 2-aminobenzhydrazide (HL), or 4-aminobenzhydrazide (HL)). The metallosupramolecular compounds obtained from non-coordinating solvents, [MoO(L)] ( and ) and [MoO(L)] ( and ), formed infinite structures and metallacycles, respectively. By blocking two coordination sites with cis-dioxo ligands, the molybdenum centers have three coordination sites occupied by the donor atoms from the rigid hydrazone ligands and one by the N atom of pyridyl or amine-functionalized ligand subcomponents from the neighboring Mo building units.
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