Suguna, K and Ramakumar, S and Rajappa, S (1982) Structure of (4S)-2,4-dimethyl-1,2-dihydropyrazino[2,1-b]quinazoline-3(4H),6-dione. In: Acta Crystallographica Section B, 38 (5). pp. 1654-1656.
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Official URL: http://journals.iucr.org/b/issues/1982/05/00/issco...
Abstract
C13HI3N302, orthorhombic, P2~2121, a = 17.443 (5), b = 11.650 (4), c = 5.784 (1)/~, Z = 4, d m = 1.456, d c = 1.429 Mg m -3, F(000) = 512, g(Cu Ka) = 0.843 mm-L The R index is 0.040 for 1358 significant reflections. The structure is stabilized by C-H...O interactions. The N-methylated eis peptide group which forms part of a six-membered ring is non-planar. The torsion angle about the peptide bond is -6.1 (4) ° and the peptide bond length is 1.337 (3) A.
Item Type: | Journal Article |
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Publication: | Acta Crystallographica Section B |
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: | 01 Jan 2010 10:09 |
Last Modified: | 19 Sep 2010 05:38 |
URI: | http://eprints.iisc.ac.in/id/eprint/21609 |
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