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Title: Crystallographic analysis of 1H, 4H-tetrahydro-8-methyl-quinolizino-(9,9a,1gh)coumarin
Authors: Rajnikant
Sharma, Bandhan
Keywords: Crystal structure
Issue Date: Jul-2004
Publisher: CSIR
Series/Report no.: G01 J 3/00
Abstract: The crystal structure of 1H,4H-tetrahydro-8-methyl-quinolizino-(9,9a,1gh)coumarin (C<sub>16</sub>H<sub>17</sub>NO<sub>2</sub>) has been determined by X-ray crystallographic techniques. The compound crystallizes in monoclinic space group P2<sub>1</sub>/n with unit cell parameters: <i>a</i> = 8.657(5) Å, <i>b</i> = 10.251(5) Å, <i>c</i> = 14.508(5) Å, <img src='/image/spc_char/beta.gif' border=0> = 96.61(1)°, <i>Z</i> = 4, <i>V</i> = 1278.91(11) Å<sup>3</sup>. The structure has been solved by direct methods and refined upto reliability index of 4.8%. The fused benzene and pyrone rings are planar. Both the piperidine rings exist in distorted <i>sofa</i> conformation. The crystal structure is stabilized by C-H...O hydrogen bonds.
Description: 524-527
ISSN: 0975-1041 (Online); 0019-5596 (Print)
Appears in Collections:IJPAP Vol.42(07) [July 2004]

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