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Halobismuthates with halopyridinium cations: appearance or non-appearance of unusual colouring

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Abstract

A series of chloro- and bromobismuthate complexes with bromopyridinium cations was prepared and characterized by XRD analysis and diffuse reflectance spectroscopy. In one case, short Cl⋯Br contacts between 2-BrPyH+ and chlorobismuthate units in the solid state result in notable charge transfer and the appearance of unusual coloring. The nature of halogen⋯halogen interactions, which can be regarded as halogen bonding, in the obtained complexes was studied by QTAIM analysis, and their energies were estimated (1.3–3.6 kcal mol−1) and compared with those in related bromo- and iodoplumbates(II). It is concluded that the presence of halogen bonding is not the single factor affecting the optical properties.

Graphical abstract: Halobismuthates with halopyridinium cations: appearance or non-appearance of unusual colouring

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Publication details

The article was received on 13 Oct 2018, accepted on 25 Oct 2018 and first published on 26 Oct 2018


Article type: Paper
DOI: 10.1039/C8CE01749B
Citation: CrystEngComm, 2018, Advance Article
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    Halobismuthates with halopyridinium cations: appearance or non-appearance of unusual colouring

    S. A. Adonin, I. D. Gorokh, A. S. Novikov, D. G. Samsonenko, I. V. Yushina, M. N. Sokolov and V. P. Fedin, CrystEngComm, 2018, Advance Article , DOI: 10.1039/C8CE01749B

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