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Chlorotellurate(iv) supramolecular associates with “trapped” Br2: features of non-covalent halogen⋯halogen interactions in crystalline phases

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Abstract

Reactions of chlorotellurates(IV) and Br2 afford formation of one-dimensional supramolecular complexes of general formula Cat2{[TeCl6](Br2)} (Cat = Me3N+ (1), PyH+ (2), 4-MePyH+ (3) and 1-MePy+ (4)) where dibromine fragments are “trapped” by [TeCl6]3− via specific Br⋯Cl interactions (halogen bonding). The energies of the latter were estimated by DFT calculations (up to 5.7 kcal mol−1).

Graphical abstract: Chlorotellurate(iv) supramolecular associates with “trapped” Br2: features of non-covalent halogen⋯halogen interactions in crystalline phases

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Article information


Submitted
18 Nov 2019
Accepted
05 Feb 2020
First published
06 Feb 2020

CrystEngComm, 2020, Advance Article
Article type
Paper

Chlorotellurate(IV) supramolecular associates with “trapped” Br2: features of non-covalent halogen⋯halogen interactions in crystalline phases

A. N. Usoltsev, S. A. Adonin, A. S. Novikov, P. A. Abramov, M. N. Sokolov and V. P. Fedin, CrystEngComm, 2020, Advance Article , DOI: 10.1039/C9CE01820D

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