STRUCTURE OF 1,3-BIS(DIPHENYLHYDROXYSILYL)-2,2-DIMETHYL-4,4-DIPHENYL-CYCLODISILAZANE

• 出 处: 结构化学
• 发表日期: 1984年02期
• 关键词: monoclinic bonds monomer hexane hydrolysis tetra weights positional 上目 些些

M =667.0, monoclinic, P21/n, a=11.854(2), b=10.136(1), c=29.931(4) A, β=93.51(1)°, Z=4, V=3588.9(8)A3, Dx=1.23 Mgm-3, λ(MoKα)=0.71069A, μ(Mo-Kα)=2.0, F(000)=1408, room temperature, R=0.072 for 3015 reflections. The structure was solved by direct method.The cyclodisilazane ring is a flattened tetrahedron. The three bonds on N(1) and N(2), respectively, are in a plane. The mean bond lengths of Si-C (methyl), Si-C(phenyl), Si-O, Si-N(endocyclic) and Si-N(exo-) are 1.839, 1.847, 1.636, 1.744 and 1.711A, respectively.

(8) M = 667.0, monoclinic, P21 / n, a = 11.854 (2), b = 10.136 (1), c = 29.931 (4) A, A3, Dx = 1.23 Mgm-3, λ (MoKα) = 0.71069A, μ (Mo-Kα) = 2.0, F (000) = 1408, room temperature, R = 0.072 for 3015 reflections. The three bonds on N (1) and N (2), respectively, are in a plane. The mean bond lengths of Si-C (methyl), Si-C -O, Si-N (exocyclic) and Si-N (exo-) are 1.839, 1.847, 1.636, 1.744 and 1.711A, respectively.