M. S. Chernov'yants, I. V. Burykin, Z. Starikova
Apr 6, 2016
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Journal
Russian Journal of Inorganic Chemistry
Abstract
Complexation in system 4-bromobenzyltriphenylphosphonium bromide–molecular iodine in chloroform has been studied. The limit number of iodine molecules coordinated by 4-bromobenzyltriphenylphosphonium bromide in solution and the stability constant of the complex have been determined by a spectrophotometric method using iodine average number functions. According to the X-ray diffraction data, the crystal structure of the charge transfer complex is formed by anion BrI2− and cation [(C6H5)3PCH2C6H4Br]+. In a crystal, translationally identical cations C25H21BrP+ form stacks along the y axis. Diiodobromide anions dimerized due to the I–I shortened contacts are located between the stacks.