Article
Structures of Two Organosilyl Azides
Organometallics
(1989)
Abstract
X-ray crystal structures were determined for trimesitylazidosilane (3) and 1,1-dimesityl-2,2-diphenyl- 2-tert-butylazidodisilane (4). The NcN2 and N2-N3 bond lengths (pm) in both compounds are nearly equal, being 115.8 and 117.0 for 3 and 117.0 and 114.7 for 4, respectively. These silyl azides thus differ markedly from organic azides, in which N2-N3 is much shorter than NcN2• Molecular orbital calculations predict N2-N3 to be 6 pm shorter than NcN2 in H3SiN3 (5). The N-N-N angle is 173.7° for 3 and 174.9° for 4, in good agreement with the calculated value for 5.
Disciplines
Publication Date
July, 1989
Publisher Statement
Reprinted (adapted) with permission from Organometallics 8 (1989): 1656, doi:10.1021/om00109a013. Copyright 1989 American Chemical Society.
Citation Information
Steven S. Zigler, Kenneth J. Haller, Robert West and Mark S. Gordon. "Structures of Two Organosilyl Azides" Organometallics Vol. 8 Iss. 7 (1989) Available at: http://works.bepress.com/mark_gordon/81/