Halogen and chalcogen-bonding interactions in sulphur-rich π-electron acceptors

Abstract : In order to explore the feasibility of generating halogen bonding interactions between sulphur-rich π-electron acceptors, we prepared three bithiazolidinylidene derivatives substituted by iodine atoms, namely 3,3′-bis(iodophenyl)bithiazolidinylidene-2,4,2′,4′-tetrathione (BIP-BTTT). Sulphur and iodine heteroatoms were introduced to the skeleton of the acceptor molecule to induce chalcogen...chalcogen and halogen bonding interactions. Both interactions can be evidenced by X-ray diffraction studies in the synthetic precursors as well as in the acceptors themselves.
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Y. Le Gal, A. Colas, F. Barrière, V. Dorcet, T. Roisnel, et al.. Halogen and chalcogen-bonding interactions in sulphur-rich π-electron acceptors. CrystEngComm, Royal Society of Chemistry, 2019, 21 (12), pp.1934-1939. ⟨10.1039/c8ce02046a⟩. ⟨hal-02090018⟩

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