Abstract
p -Nitrophenyl-B-D- N -acetylgluicosaminide monohydrate, C 14 H 20 O 9 N 2 , crystallizes in the orthorhombic system with a = 8.07, b = 41.66, c = 5.06 Å .§ The space group is P2 1 2 1 2 1 with four molecules in the unit cell. A computer application of the tangent formula of Karle & Hauptman was used to solve the structure and least-squares refinement with anisotropic thermal parameters for the non-hydrogen atoms, has given an R index of 0.061 for the 1368 non-zero diffractometer data. All hydrogen atoms were located from a difference map. Standard deviations of non-hydrogen distances and angles average 0.009 Å and 0.6°, respectively. The glucopyranose ring is in the chair form and its structure is close to that found in other sugars. The packing of the molecules is determined by a complete scheme of hydrogen bonding.
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Schedule a callMore From: Proceedings of the Royal Society of London. Series B. Biological Sciences
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