1-{3-[(4-Oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one
Two independent molecules comprise the asymmetric unit in the title compound, C(18)H(20)N(2)O(4). One of the molecules exhibits disorder in one of its 4-piperidone rings, which is disposed over two orientations [site occupancy of the major component = 0.651 (5)]. The first independent molecule and t...
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International Union of Crystallography
2010
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my.um.eprints.125902019-01-31T05:16:59Z http://eprints.um.edu.my/12590/ 1-{3-[(4-Oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one Rajesh, K. Vijayakumar, V. Sarveswari, S. Narasimhamurthy, T. Tiekink, E.R.T. Q Science (General) Two independent molecules comprise the asymmetric unit in the title compound, C(18)H(20)N(2)O(4). One of the molecules exhibits disorder in one of its 4-piperidone rings, which is disposed over two orientations [site occupancy of the major component = 0.651 (5)]. The first independent molecule and the minor component of the second disordered molecule are virtually superimposable. The central four C atoms in the major component of the disordered molecule have an opposite orientation. All the 4-piperidone rings have a chair conformation. The carbonyl groups in each molecule have approximate anti conformations [O=C...C=O = 146.2 (2) and -159.9 (2)degrees]. The 4-piperidone rings lie to opposite sides of the central benzene ring in both molecules. In the crystal, molecules are linked by C-H...O interactions. The crystal studied was found to be a non-merohedral twin (twin law -1 0 0, 0 1 0, 0 - 1/2 - 1), the fractional contribution of the minor component being approximately 11%. International Union of Crystallography 2010 Article PeerReviewed Rajesh, K. and Vijayakumar, V. and Sarveswari, S. and Narasimhamurthy, T. and Tiekink, E.R.T. (2010) 1-{3-[(4-Oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one. Acta Crystallographica Section E: Structure Reports Online, 66 (8). O1988-U935. ISSN 1600-5368 |
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Q Science (General) Rajesh, K. Vijayakumar, V. Sarveswari, S. Narasimhamurthy, T. Tiekink, E.R.T. 1-{3-[(4-Oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one |
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Two independent molecules comprise the asymmetric unit in the title compound, C(18)H(20)N(2)O(4). One of the molecules exhibits disorder in one of its 4-piperidone rings, which is disposed over two orientations [site occupancy of the major component = 0.651 (5)]. The first independent molecule and the minor component of the second disordered molecule are virtually superimposable. The central four C atoms in the major component of the disordered molecule have an opposite orientation. All the 4-piperidone rings have a chair conformation. The carbonyl groups in each molecule have approximate anti conformations [O=C...C=O = 146.2 (2) and -159.9 (2)degrees]. The 4-piperidone rings lie to opposite sides of the central benzene ring in both molecules. In the crystal, molecules are linked by C-H...O interactions. The crystal studied was found to be a non-merohedral twin (twin law -1 0 0, 0 1 0, 0 - 1/2 - 1), the fractional contribution of the minor component being approximately 11%. |
| format |
Article |
| author |
Rajesh, K. Vijayakumar, V. Sarveswari, S. Narasimhamurthy, T. Tiekink, E.R.T. |
| author_facet |
Rajesh, K. Vijayakumar, V. Sarveswari, S. Narasimhamurthy, T. Tiekink, E.R.T. |
| author_sort |
Rajesh, K. |
| title |
1-{3-[(4-Oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one |
| title_short |
1-{3-[(4-Oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one |
| title_full |
1-{3-[(4-Oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one |
| title_fullStr |
1-{3-[(4-Oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one |
| title_full_unstemmed |
1-{3-[(4-Oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one |
| title_sort |
1-{3-[(4-oxopiperidin-1-yl)carbonyl]benzoyl}piperidin-4-one |
| publisher |
International Union of Crystallography |
| publishDate |
2010 |
| url |
http://eprints.um.edu.my/12590/ |
| _version_ |
1643689333405777920 |
| score |
13.211869 |