Chemical Diversity of Mo5S5 Clusters with Pyrazole: Synthesis, Redox and UV-vis-NIR Absorption Properties

The chemistry of transition metal clusters has been intensively developed in the last decades, leading to the preparation of a number of compounds with promising and practically useful properties. In this context, the present work demonstrates the preparation and study of the reactivity, i.e., the p...

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Bibliographic Details
Published in:	International journal of molecular sciences 2023-09, Vol.24 (18), p.13879
Main Authors:	Savina, Iulia V., Ivanov, Anton A., Eltsov, Ilia V., Yanshole, Vadim V., Kuratieva, Natalia V., Komarovskikh, Andrey Y., Syrokvashin, Mikhail M., Shestopalov, Michael A.
Format:	Article
Language:	eng
Subjects:	cyclic voltammetry EPR Ligands Mass spectrometry metal cluster Molybdenum NMR Optics pyrazole Scientific imaging Selenium
Online Access:	Get full text
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Summary:	The chemistry of transition metal clusters has been intensively developed in the last decades, leading to the preparation of a number of compounds with promising and practically useful properties. In this context, the present work demonstrates the preparation and study of the reactivity, i.e., the possibility of varying the ligand environment, of new square pyramidal molybdenum chalcogenide clusters [{Mo5(μ3-S)i4(μ4-S)i(μ-pz)i4}(pzH)t5]1+/2+ (pzH = pyrazole, i = inner, t = terminal). The one-step synthesis starting from the octahedral Mo6Br12 cluster as well as the substitution of the apical pyrazole ligand or the selective bromination of the inner pyrazolate ligands were demonstrated. All the obtained compounds were characterized in detail using a series of physicochemical methods both in solid state (X-ray diffraction analysis, etc.) and in solution (nuclear magnetic resonance spectroscopy, mass spectrometry, etc.). In this work, redox properties and absorption in the ultraviolet-visible and near-infrared region of the obtained compounds were studied.
ISSN:	1422-0067 1661-6596 1422-0067