Реферат: X-ray diffraction patterns for Et3GeLi solutions in benzene, hexane and tetrahydrofuran (THF) are measured and radial distribution functions (RDF's) are calculated. Narrow peaks are detected in the RDF's pertaining to the distances between atoms of coupled Et3GeLi molecules. This shows directly that these molecules exist in solution in associated forms. The associate structures are different in hydrocarbon and electron-donor solvents. It is found that the nearest neighbour distance between germanium atoms of coupled molecules is 4.5 Å in benzene and hexane and 4.0 Å in THF solutions. Packing of large associates produces the diffraction peak seen in scattering curves of solutions in the low angle region. The associate dimensions (diameters) are estimated from these peak positions as 12.5–14 Å in hydrocarbons and 10 Å in THF.

Библиографическая ссылка: Korsunsky V.I. , Taraban M.B. , Leshina T.V. , Margorskaya O.I. , Vyazankin N.S.
Triethylgermyllithium association in solutions studied by the method of x-ray diffraction in liquids
Journal of Organometallic Chemistry. 1981. V.215. P.179-186. DOI: 10.1016/S0022-328X(00)80128-XCAPlusCA

Идентификаторы БД:

Chemical Abstracts:	1981:532101
Chemical Abstracts (print):	95:132101

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