Crystal and Molecular Structures of 3-Carboxypropyltriphenylphosphonium Diiodobromide

Autor: G. G. Aleksandrov, Oleg A. Dyachenko, M. S. Chernov'yants, Olga N. Kazheva, S. S. Simonyan, E. O. Lykova
Rok vydání: 2003
Předmět:
Zdroj: Russian Journal of Coordination Chemistry. 29:819-827
ISSN: 1070-3284
DOI: 10.1023/b:ruco.0000008392.20283.88
Popis: Complexation in the 3-carboxypropyltriphenylphosphonium bromide–molecular iodine system in chloroform was studied. The maximum number of iodine molecules coordinated by 3-carboxypropyltriphenylphosphonium bromide was established by the spectrophotometric method using a function of the average-iodine number, and the stability constant of the complex was determined. The [(C6H5)3P(CH2)3COOH]BrI2 diiodobromide was studied by X-ray diffraction analysis. The characteristic feature of the crystalline salt was the formation of dimer associates: anionic associates were formed due to the Br···Br intermolecular interactions and cationic associates were formed due to the O···H–O hydrogen bonds. The data obtained were correlated to the results of quantum-chemical calculations.
Databáze: OpenAIRE