Structure of 6,5'-anhydro-6-hydroxy-2',3' O-isopropylideneuridine

Mande, Sharmila S and Seshadri, TP and Viswamitra, MA (1988) Structure of 6,5'-anhydro-6-hydroxy-2',3' O-isopropylideneuridine. In: Acta Crystallographica Section C, 44 . pp. 138-141.

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Abstract

CI2HI4N206, Mr=282"3, orthorhombic,P21212 t, a = 10.412 (2), b = 14.936 (2), c =16.651(3),/k, V=2589.46A 3, Z--8, Din= 1.450, D x = 1.447 Mg m -3, 2(Cu Kct) = 1.5418/~, # =0.902mm -~, F(000)-- 1184.00, T= 293 K, R = 0.039, wR--0.038 for 2548 unique reflections with F > 3a(F). The two crystallographically independent molecules in the asymmetric unit have similar geome-tries with the ribose ring having an O(4')-exo, C(4')-endo pucker and the uracil base in the anti conformation.The geometry about the exocyclic C(4')-C(5') bond in both molecules is gauche-gauche. The dioxolane ring assumes twist conformations in both molecules.

Item Type:	Journal Article
Publication:	Acta Crystallographica Section C
Publisher:	International Union of Crystallography
Additional Information:	Copyright of this article belongs to International Union of Crystallography.
Department/Centre:	Division of Biological Sciences > Microbiology & Cell Biology Division of Biological Sciences > Molecular Reproduction, Development & Genetics Division of Physical & Mathematical Sciences > Physics
Date Deposited:	11 Oct 2010 08:32
Last Modified:	11 Oct 2010 08:32
URI:	http://eprints.iisc.ac.in/id/eprint/32955

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