Facile One-Pot Synthesis of Triphenylbismuth(V) Bis(carboxylate) Complexes

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• 作者：Ish Kumar ; Prateek Bhattacharya ; Kenton H. Whitmire
• 刊名：Organometallics
• 出版年：2014
• 出版时间：June 9, 2014
• 年：2014
• 卷：33
• 期：11
• 页码：2906-2909
• 全文大小：230K
• 年卷期：v.33,no.11(June 9, 2014)
• ISSN：1520-6041

文摘

Triphenylbismuth(V) bis(carboxylates), Ph₃Bi(O₂CR)₂ (R = 5-Br-2-OH-C₆H₃ (1), 2-OH-C₆H₄ (2), 2,6-(OH)₂-C₆H₃ (3), 3-Me-2-NH₂-C₆H₃ (4), Ph (5), Me (6)), were obtained from the reaction of triphenylbismuth with hydrogen peroxide and excess carboxylic acid in wet 2-propanol. The synthesis avoids the use of halogens as oxidants, and the products crystallize directly from the solution as pure compounds. They crystallize from solution without further need for purification. The structures of 1鈥?b>5 were confirmed by single-crystal X-ray diffraction. Compounds 2 and 5 exhibit a polymorph different from that previously reported in the literature. While all of the Bi(V) compounds adopt a trans-axial trigonal-bipyramidal configuration with the carboxylates in axial positions, there is considerable variation in the coordination of the carboxylate that ranges from simple 畏¹ to a mixture of mono- and bidentate chelating bonding modes.