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Structure of 5'-O-Acetyl-2',3'-O-isopropylideneuridine, $C_{14}H_{18}N_{2}O_{7}$

Seshadri, TP and Gautham, N and Viswamitra, MA (1983) Structure of 5'-O-Acetyl-2',3'-O-isopropylideneuridine, $C_{14}H_{18}N_{2}O_{7}$. In: Acta Crystallographica, Section C: Crystal Structure Communications, 39 (12). pp. 1706-1708.

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$M_r$ = 326.3, monoclinic, $P2_1$, with a 6.510(2), b 8.432(2), c 15.114(2) \AA, and \beta $101.42(3)^o$; Z = 2, V= 813.15 $AA^3$, $D_x$ = 1-33 Mg $m^{-3}$, F(000) = 172, \lambda(Cu Ka) = 1.5418 \AA, \mu(Cu Ka) = 0.906 $mm^{-1}$, final R = 6.4% for 1924 observed counter reflections. The conformation about the glycosidic bond is syn (torsion angle $C(6)-N(1)-C(1')-O(4') -103.9(3)^o)$. The sugar pucker is C(2')-exo,C(3')-endo $(^3T_2)$. The conformation about the C(4')-C(5') bond is gauche-trans. An uncommon intermolecular hydrogen bond involving the ribose-ring O(1') and the base N(3) stabilize the crystal structure.

Item Type: Journal Article
Publication: Acta Crystallographica, Section C: Crystal Structure Communications
Publisher: International Union of Crystallography
Additional Information: Copyright of this article belongs to International Union of Crystallography.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 16 Jul 2008
Last Modified: 19 Sep 2010 04:46
URI: http://eprints.iisc.ac.in/id/eprint/14646

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