Gautham, N and Ramakrishanan, P and Seshadri, TP and Viswamitra, MA and Salisbury, SA and Brown, DM (1982) Structure Of A Thionucleoside - 5'-Deoxy-5',6-Epithio-5,6-Dihydro-2',3'-Ortho-Isopropylidene-3-Methyluridine. In: Acta Crystallographica Section B, 38 (10). pp. 2707-2709.
a21550.pdf - Published Version
Restricted to Registered users only
Download (323Kb) | Request a copy
C13HlsN205 S, M r = 314.35, orthorhombic, P212121 with a = 39.526 (4), b = 6.607 (2), c = 5.661 (2) A, Z = 4, V = 1478.36 A 3, D c = 1.412 Mg m -3, Cu Ka radiation. Final R = 0.073 for 1154 observed counter reflections. The sulphur atom is in a pseudo-equatorial position with respect to the dihydrouracil ring. The sugar pucker is predominantly O(l')-exo unlike the C(3')-exo,C(4')-endo observed for 2',3' O-isopropylideneuridine (ISPU). The fivemembered dioxolane ring has C(7) displaced by 0.497 (7)A from the best plane through atoms 0(2'), C(2'), C(3'), 0(3'), in contrast to ISPU where 0(3') shows the maximum deviation.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to International Union of Crystallography.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||01 Feb 2010 07:23|
|Last Modified:||19 Sep 2010 05:40|
Actions (login required)