Show simple item record Marszaukowski, Flavia Wohnrath, Karen Boere, Rene T. 2021-09-22T21:32:06Z 2021-09-22T21:32:06Z 2020
dc.identifier.citation Marszaukowski, F., Wohnrath, K., & Boere, R. T. (2020). Bulky 2,6-disubstituted aryl siloxanes and a disilanamine. Acta Crystallographica, Section E: Crystallographic Communications, E76, 318-323. en_US
dc.description Open access article. Creative Commons license (CC BY) applies en_US
dc.description.abstract The crystal structures of 5-bromo-1,3-di-tert-butyl-2-[(tri­methyl­sil­yl)­oxy]benzene, C17H29BrOSi, (I), 1,3-di-tert-butyl-2-[(tri­methyl­sil­yl)­oxy]benzene, C17H30OSi, (II), and N-(2,6-diiso­propyl­phen­yl)-1,1,1-trimethyl-N-(tri­methyl­sil­yl)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 mol­ecules 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-di-tert-butyl-substituted phenyl compounds, reflecting the high local steric pressure of the flanking alkyl groups. Compound (III) by contrast is planar and symmetric, and this lack of distortion is compatible with the lower steric pressure of the flanking 2,6-diisopropyl substituents. en_US
dc.language.iso en_US en_US
dc.publisher International Union of Crystallography (IUCr) en_US
dc.subject Crystal structure en_US
dc.subject Steric pressure en_US
dc.subject Ortho-disubstitution en_US
dc.subject Out of plane distortion en_US
dc.subject High symmetry en_US
dc.subject.lcsh Crystallography
dc.title Bulky 2,6-disubstituted aryl siloxanes and a disilanamine en_US
dc.type Article en_US
dc.publisher.faculty Arts and Science en_US
dc.publisher.department Department of Chemistry and Biochemistry en_US
dc.description.peer-review Yes en_US
dc.publisher.institution Universidade Estadual de Ponta Grossa en_US
dc.publisher.institution University of Lethbridge en_US
dc.publisher.url en_US

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