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FACILE SYNTHESES OF NEW INCOMPLETELY CONDENSED POLYHEDRAL OLIGOSILSESQUIOXANES - [(CCYCLO-C5H9)7SI7O9(OH)3], [(CYCLO-C7H13)7SI7O9(OH)3], AND [(CYCLO-C7H13)6SI6O7(OH)4]
被引:217
作者:
FEHER, FJ
BUDZICHOWSKI, TA
BLANSKI, RL
WELLER, KJ
ZILLER, JW
机构:
[1] Department of Chemistry, University of California, Irvine
关键词:
D O I:
10.1021/om00053a070
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
Facile synthesis of three new incompletely condensed polyhedral oligosilsesquioxanes are reported. Trisilanols [(c-C5H9)7Si7O9(OH)3 (1a) and [(c-C7H13)7Si7O9(OH)3] (1c) are prepared in 29% and 26% yields, respectively, by the hydrolytic condensation reactions of c-C5H9SiCl3 and c-C7H13SiCl3 in refluxing aqueous acetone. The hydrolytic condensation of c-C7H13SiCl3 at 25-degrees-C also affords tetrasilanol [(c-C7H13)6Si6O7(OH)4] (2) in 7% yield. These straightforward syntheses produce multigram quantities of incompletely condensed silsesquioxanes within a few days.
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页码:2526 / 2528
页数:3
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