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Mechanistic Insight into the Reactivity of Oxotransferases by Novel Asymmetric Dioxomolybdenum(VI) Model Complexes by Dr. Ramasamy Mayilmurugan; Bastian N. Harum; Dr. Manuel Volpe; Prof. Dr. Alexander F. Sax; Prof. Dr. Mallayan Palaniandavar; Prof. Dr. Nadia C. Mösch-Zanetti is a Chemistry article available to read on EtoBox.

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## Abstract The asymmetric molybdenum(VI) dioxo complexes of the bis(phenolate) ligands 1,4‐bis(2‐hydroxybenzyl)‐1,4‐diazepane, 1,4‐bis(2‐hydroxy‐4‐methylbenzyl)‐1,4‐diazepane, 1,4‐bis(2‐hydroxy‐3,5‐dimethylbenzyl)‐1,4‐diazepane, 1,4‐bis(2‐hydroxy‐3,5‐di‐__tert__‐butylbenzyl)‐1,4‐diazepane, 1,4‐bis(2‐hydroxy‐4‐flurobenzyl)‐1,4‐diazepane, and 1,4‐bis(2‐hydroxy‐4‐chlorobenzyl)‐1,4‐diazepane (H~2~(L1)–H~2~(L6), respectively) have been isolated and studied as functional models for molybdenum oxotransferase enzymes. These complexes have been characterized as asymmetric complexes of type [MoO~2~(L)] 1–6 by using NMR spectroscopy, mass spectrometry, elemental analysis, and electrochemical methods. The molecular structures of [MoO~2~(L)] 1–4 have been successfully determined by single‐crystal X‐ray diffraction analyses, which show them to exhibit a distorted octahedral coordination geometry around molybdenum(VI) in an asymmetrical __cis__‐β configuration. The MoO~oxo~ bond lengths differ only by ≈0.01 Å. Complexes 1, 2, 5, and 6 exhibit two successive Mo^VI^/Mo^V^ (__E__~1/2,~ −1.141 to −1.848 V) and Mo^V^/Mo^IV^ (__E__~1/2,~ −1.531 to −2.114 V) redox processes. However, only the Mo^VI^/M

Who reads Mechanistic Insight into the Reactivity of Oxotransferases by Novel Asymmetric Dioxomolybdenum(VI) Model Complexes?

Author

Dr. Ramasamy Mayilmurugan; Bastian N. Harum; Dr. Manuel Volpe; Prof. Dr. Alexander F. Sax; Prof. Dr. Mallayan Palaniandavar; Prof. Dr. Nadia C. Mösch-Zanetti

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 0947-6539)

Published

2010

Language

EN

Field

Chemistry (Physical Sciences)