S. Hall, E. N. Maslen
Feb 1, 1965
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0
Influential Citations
17
Citations
Journal
Acta Crystallographica
Abstract
The crystal structure of methyl melaleucate iodoacetate (C34H5106I), a derivative of melaleucic acid, was determined from phases calculated by anomalous dispersion methods (Ramachandran & Raman, 1956) and refined by block diagonal least squares to a final R index of 0-079 for 1342 measurab]e reflexions. The unit cell is orthorhombic, space group _P212121 with a = 15-719, b =24-533 and c=8.618 A. 48 of the 51 H atoms were located in a 3-D difference synthesis enabling a close study of the packing and associated steric hindrance in the structure. Abnormally high C-C bond lengths of up to 1.66 A are attributed to strain resulting from this hindrance.