Synthesis and Properties of Ethyl, Propyl, and Butyl Hexa-alkyldisilanes and Tetrakis(tri-alkylsilyl)silanes
作者:Mohammed A. K. Ahmed、David S. Wragg、Ola Nilsen、Helmer Fjellvåg
DOI:10.1002/zaac.201400276
日期:2014.11
unidentified product(s) was obtained. For R = n-propyl a mixture of [(CH3CH2CH)3Si]2 (hexa-n-propyldisilane), [(CH3CH2CH2)2Si]4, (octa-n-propyltetra-cyclo-silane), [(CH3CH2CH2)3Si]4Si tetrakis(tri-n-propylsilyl)silane} (2)], and other unidentified product(s) was obtained. From this mixture only 2, a new and previously unreported compound, was purified. 2 is the second compound of this type to be reported
Photolyses of a series of octaalkylcyclotetrasilanes (1) in a hydrocarbon solvent successively afforded hexaalkylcyclotrisilanes (2) and tetraalkyldisilenes (3). Compounds 2 and 3 were found to exhibit their absorption bands corresponding to the lowest energy transitions at λmax 300–330 and 390–440 nm, respectively.