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Journal Articles Dalton Transactions Year : 2023

Bismuth and antimony halometalates containing photoswitchable ruthenium nitrosyl complexes

Abstract

The first examples of Bi(III) and Sb(III) halide compounds combined with a photoswitchable ruthenium nitrosyl unit are reported. The structures of [RuNOPy4Br]4[Sb2Br8][Sb3Br12]2 (1) and (H3O)[RuNOPy4Br]4[Bi2Br9]3·3H2O (2) were determined by X-ray diffraction, and exhibit three different structural types of group 15 halometalates. Low-temperature IR-spectroscopy measurements reveal that the irradiation of 1 at 365 nm switches a stable Ru–NO (GS) unit to a metastable Ru–ON (MS1) linkage. Moreover, the light excitation of 2 at 365 or 405 nm induces the additional formation of a side-bond isomer Ru-η2-(NO) (MS2). The reverse reactions MS1/MS2 → GS can be induced by red–infrared light irradiation or by heating at temperatures >200 K. The obtained synthetic and spectroscopic data open the way for the preparation of hybrid halide complexes with a variety of photoswitchable complexes (NO2, SO2, N2, etc.), and give an insight into the behavior of light-induced species embedded in polynuclear halides.
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hal-03960413 , version 1 (27-01-2023)

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Attribution - NonCommercial

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Artem Mikhailov, Nikita Korobeynikov, Andrey Usoltsev, Sergey Adonin, Gennadiy Kostin, et al.. Bismuth and antimony halometalates containing photoswitchable ruthenium nitrosyl complexes. Dalton Transactions, 2023, 52 (4), pp.919-927. ⟨10.1039/D2DT03497B⟩. ⟨hal-03960413⟩
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