Issue 22, 1999

A new route to incompletely-condensed silsesquioxanes: base-mediated cleavage of polyhedral oligosilsesquioxanes

Abstract

Readily available R8Si8O12 frameworks react selectively with aqueous Et4NOH to afford discrete incompletely-condensed silsesquioxanes: reaction of R8Si8O12 (2a, R = c-C6H11; 2b, R = Bui) with Et4NOH first produces endo-D2-R8Si8O11(OH)2 (3a, R = c-C6H11; 3b, R = Bui), which reacts further with Et4NOH to produce endo-C2-R8Si8O10(OH)4 (5a and 5b) and endo-C3-R7Si7O9(OH)3 (4a, R = c-C6H11; 4b, R = Bui); the reactions of Et4NOH with Me8Si8O12 (2c), (c-C6H11)7(H)Si8O12 (2d) and (c-C6H11)7(OH)Si8O12 (2d) also produce the corresponding trisilanols (i.e. endo-C3-R7Si7O9(OH)3 (4a, R = c-C6H11; 4c, R = Me).

Article information

Article type
Paper

Chem. Commun., 1999, 2309-2310

A new route to incompletely-condensed silsesquioxanes: base-mediated cleavage of polyhedral oligosilsesquioxanes

F. J. Feher, R. Terroba and J. W. Ziller, Chem. Commun., 1999, 2309 DOI: 10.1039/A906242D

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements