t-3-Ethyl-r-2,c-7-bis(4-methoxyphenyl)-1,4-diazepan-5-one
Identifieur interne : 002847 ( Main/Merge ); précédent : 002846; suivant : 002848t-3-Ethyl-r-2,c-7-bis(4-methoxyphenyl)-1,4-diazepan-5-one
Auteurs : K. Ravichandran [Inde] ; P. Ramesh [Inde] ; S. Sethuvasan [Inde] ; S. Ponnuswamy [Inde] ; M. N. Ponnuswamy [Inde]Source :
- Acta Crystallographica Section E: Structure Reports Online [ 1600-5368 ] ; 2009.
Abstract
The title compound, C21H26N2O3, crystallizes with two independent molecules in the asymmetric unit. In both independent molecules, the diazepine ring adopts a chair conformation. In the crystal, the independent molecules exist as N—H⋯O hydrogen-bonded
Url:
DOI: 10.1107/S1600536809043311
PubMed: 21578470
PubMed Central: 2971068
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PMC:2971068Le document en format XML
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-3-Ethyl-<italic>r</italic>
-2,<italic>c</italic>
-7-bis(4-methoxyphenyl)-1,4-diazepan-5-one</title>
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<front><div type="abstract" xml:lang="en"><p>The title compound, C<sub>21</sub>
H<sub>26</sub>
N<sub>2</sub>
O<sub>3</sub>
, crystallizes with two independent molecules in the asymmetric unit. In both independent molecules, the diazepine ring adopts a chair conformation. In the crystal, the independent molecules exist as N—H⋯O hydrogen-bonded <italic>R</italic>
<sub>2</sub>
<sup>2</sup>
(8) dimers which are linked <italic>via</italic>
N—H⋯O hydrogen bonds, forming tetramers. The tetramers are linked by C—H⋯O hydrogen bonds. In one of the molecules in the asymmetric unit, the terminal C atom of the ethyl group is disordered over two positions with refined occupancies of 0.742 (4) and 0.258 (4).</p>
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