Static and dynamic stereochemistry of hexaisopropylbenzene: a gear-meshed hydrocarbon of exceptional rigidity

J Siegel, A Gutierrez, WB Schweizer…

Index: Siegel, Jay; Gutierrez, Alberto; Schweizer, W. Bernd; Ermer, Otto; Mislow, Kurt Journal of the American Chemical Society, 1986 , vol. 108, # 7 p. 1569 - 1575

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Citation Number: 44

Abstract

Abstract: The crystal and molecular structure of hexaisopropylbenzene (1) has been analyzed by X-ray methods at 99 K: space group Pi, a= 6.400 (2) A, b= 9.943 (3) A, c= 10.223 (2) A, a= 117.79 (2) O, 0= 94.78 (3) O, y= 105.58 (3) O, Z= 1. The molecules closely approximate c, h symmetry in the crystal. A crystallographic orientational disorder around the molecular sixfold axes was modeled with the help of simple structural and geometrical ...