Abstract
Two synthetic approaches were developed for the preparation of 3,6-di-tert-butyl-2-hydroxy-4-pyridinylphenolate (LH), a new zwitter-ionic redox-active diolate type ligand. Two heteroligand five-coordinate tin(IV) derivatives were prepared with this ligand: 3,6-di-tert-butyl-2-oxy-4-pyridinylphenolato(triphenyl)tin(IV) (I) and 3,6-di-tert-butyl-2-oxy-4-pyridinylphenolato(diphenyl)chlorotin(IV) (II). The molecular structures of the ligand LH ∙ 0.5Py and complex I ∙ CH3CN were determined by X-ray diffraction (CIF files CCDC nos. 1974166 (LH), 1974165 (I)). It was shown that the ligand LH and the tin(IV) compound exhibit solvatochromism, which consists in a considerable blue shift with increasing solvent polarity.
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ACKNOWLEDGMENTS
The studies were carried out using the research equipment of the Center for Collective Use “Analytical Center of the Razuvaev Institute of Organometallic Chemistry” at the Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, and was supported by the Federal Target Program “Research and Development along the Priority Trends of the Science and Technology Sector of Russia for 2014–2020” (project unique identifier: RFMEFI62120X0040).
Funding
The study was supported by the Russian Foundation for Basic Research (project no. 19-29-08039-mk).
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Translated by Z. Svitanko
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Piskunov, A.V., Pashanova, K.I., Mart’yanov, K.A. et al. 3,6-Di-tert-Butyl-2-Hydroxy-4-Pyridinylphenolate and Tin(IV) Complexes it Forms: Synthesis and Structure Details and Solvatochromic Effect. Russ J Coord Chem 46, 795–804 (2020). https://doi.org/10.1134/S1070328420120064
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DOI: https://doi.org/10.1134/S1070328420120064