Crystal structures of the silylated phosphaneimines Me3SiNP(c-C6H11)(3) and (Me3SiNPPh2)(2)CH2

Citation
A. Muller et al., Crystal structures of the silylated phosphaneimines Me3SiNP(c-C6H11)(3) and (Me3SiNPPh2)(2)CH2, Z ANORG A C, 625(10), 1999, pp. 1748-1751
Citations number
24
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
ISSN journal
00442313 → ACNP
Volume
625
Issue
10
Year of publication
1999
Pages
1748 - 1751
Database
ISI
SICI code
0044-2313(199910)625:10<1748:CSOTSP>2.0.ZU;2-Q
Abstract
The crystal structures of Me3SNP(c-C6H11)(3) (1) and (Me3SiNPPh2)(2)CH2 (2) are determined by X-ray diffraction at single crystals. In both compounds the PN distances correspond to double bonds, the SiN distances to single bo nds. With 149.8 degrees the SiNP bond angle in 1 is noticeably large, while it is only 138.5 degrees in 2, which shows C-2 symmetry. 1: Space group P2 (1)/n, Z = 4, lattice dimensions at -70 degrees C: a = 1143.0(1), b = 1743. 0(2), c = 1152.5(1) pm, beta = 90.42(1)degrees; R = 0.0677. 2: Space group I4(1)/a, Z = 8, lattice dimensions at -60 degrees C: a = b = 1959.7(1), c = 1695.8(1) pm, R = 0.0433.