Bulky 2,6-disubstituted aryl siloxanes and a disilanamine.

ABSTRACT: The crystal structures of 5-bromo-1,3-di-tert-butyl-2-[(tri-methyl-sil-yl)-oxy]benzene, C₁₇H₂₉BrOSi, (I), 1,3-di-tert-butyl-2-[(tri-methyl-sil-yl)-oxy]benzene, C₁₇H₃₀OSi, (II), and N-(2,6-diiso-propyl-phen-yl)-1,1,1-trimethyl-N-(tri-methyl-sil-yl)silanamine, C₁₈H₃₅NSi₂, (III), are reported. Compound (I) crystallizes in space group P2₁/c with Z' = 1, (II) in Pnma with Z' = 0.5 and (III) in Cmcm with Z' = 0.25. Consequently, the mol-ecules of (II) are constrained by m and those of (III) by m2m site symmetries. Despite this, both (I) and (II) are distorted towards mild boat conformations, as is typical of 2,6-

SUBMITTER: Marszaukowski F 

PROVIDER: S-EPMC7057366 | biostudies-literature | 2020 Mar

REPOSITORIES: biostudies-literature