Jump to main content
Jump to site search

Issue 15, 2016
Previous Article Next Article

Aryl(silyl)amino group stabilized hydridosilanediols: synthesis and characterization and use for preparation of alumino(hydrido)siloxanes

Author affiliations

Abstract

Aryl(silyl)amino group stabilized hydridosilanediols RSiH(OH)2 (R = N(SiMe2Ph)-2,6-iPr2C6H3 (4), N(SiMe3)-2,6-iPr2C6H3 (5), and N(SiMe2Ph)-2,4,6-Me3C6H2 (6)) were prepared from the controlled hydrolysis of the related RSiHCl2 (1–3) each in the presence of aniline as the HCl acceptor. Reactions of 4 with AlMe3, AliBu3, AlH(iBu)2, and AlH3·NMe3, respectively, yielded alumino(hydrido)siloxanes [2,6-iPr2C6H3N(SiMe2Ph)Si(H)OAlMe(THF)]2 (7), [2,6-iPr2C6H3N(SiMe2Ph)Si(H)OAliBu(THF)]2 (9), [2,6-iPr2C6H3N(SiMe2Ph)Si(H)O2]3[Al(THF)]2 (10), and [2,6-iPr2C6H3N(SiMe2Ph)Si(H)OAlH(THF)]2 (11). The reaction of 5 with AlMe3 gave [2,6-iPr2C6H3N(SiMe3)Si(H)OAlMe(THF)]2 (8), a compound similar to 7. Compounds 1–11 are characterized by NMR (1H, 13C, and 29Si) and IR spectroscopy and CHN elemental analysis, of which 6 and 8–11 are further studied by X-ray crystallography. Compounds 8–9 and 11 feature cyclic structures all with the skeleton core of Si2O4Al2 while compound 10 exhibits a bicyclic structure having a core of Si3O6Al2. Melting point measurements indicated that 4–6 are thermally stable bearing the geminal SiH and SiOH groups. Compounds 8–9 and 11 are thermally stable as well with the O atom-bridged SiH and AlR (R = Me, iBu, or H) groups.

Graphical abstract: Aryl(silyl)amino group stabilized hydridosilanediols: synthesis and characterization and use for preparation of alumino(hydrido)siloxanes

Back to tab navigation

Supplementary files

Publication details

The article was received on 06 Jan 2016, accepted on 01 Mar 2016 and first published on 02 Mar 2016


Article type: Paper
DOI: 10.1039/C6DT00059B
Citation: Dalton Trans., 2016,45, 6709-6717
  •   Request permissions

    Aryl(silyl)amino group stabilized hydridosilanediols: synthesis and characterization and use for preparation of alumino(hydrido)siloxanes

    X. Wang, J. Li, S. Chen, W. Liu, Q. Ye and H. Zhu, Dalton Trans., 2016, 45, 6709
    DOI: 10.1039/C6DT00059B

Search articles by author

Spotlight

Advertisements