Anionic Bismuth(III) chloride cluster with diselenide countercations: Application in C-S cross coupling reactions

• Published in: Journal of organometallic chemistry Vol. 884; pp. 29 - 35
• Main Authors: Ganesan, Prabusankar, Mannem, Adinarayana, Muthukumaran, Nirmala
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 30-03-2019
• Subjects: Bismuth; C-S cross-coupling; Ion pair; Selone; Bismuth; Selone; C-S cross-coupling; Ion pair
• ISSN: 0022-328X; 1872-8561
• DOI: 10.1016/j.jorganchem.2019.01.017

The first weakly coordinating anion (WCA) with reactive p-block cation (rPBC) type of [(Bi4Cl16)4-{(LSeSeL)2+}2], L = 1,3-bis(2-benzhydryl-4,6-dimethylphenyl)-1H-imidazole-2(3H), ion pair is reported. The tetranuclear anionic bismuth(III) cluster shows a new type of ladder structure with two different types of Bi(III) coordination modes. In the solid state structure, the tetranuclear bismuth(III) cluster is sandwiched by two diselenide cations through hydrogen bonding interactions. Besides, this ion pair has been efficaciously employed as catalyst in C-S cross-coupling reactions under optimized reaction condition. This ion pair depicted a wide range of substrate scope with different thiols and aryl halides.
The diselenide trapped tetranuclear anionic bismuth(III) chloride cluster for C-S cross-coupling reaction is reported. [Display omitted]
•First tetranuclear bismuth anionic salt of semi-super bulky diselenide has been synthesized and characterized.•New structural motif for anionic tetranuclear bismuth(III) chloride has been reported.•The catalytic application of tetranuclear bismuth cluster in C-S cross coupling reaction has been reported.