7-Nitro-2,3-dihydro-1H-cyclopenta[b]chromen-1-one
✍ Scribed by Huo, Fang-Jun ;Yin, Cai-Xia ;Yang, Pin
- Publisher
- International Union of Crystallography
- Year
- 2004
- Tongue
- English
- Weight
- 271 KB
- Volume
- 60
- Category
- Article
- ISSN
- 1600-5368
No coin nor oath required. For personal study only.
✦ Synopsis
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.004 A Ê Disorder in main residue R factor = 0.052 wR factor = 0.125 Data-to-parameter ratio = 10.1 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
📜 SIMILAR VOLUMES
Single-crystal X-ray study T = 293 K Mean '(C±C) = 0.002 A Ê R factor = 0.045 wR factor = 0.103 Data-to-parameter ratio = 15.7 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
Single-crystal X-ray study T = 143 K Mean '(C±C) = 0.004 A Ê R factor = 0.054 wR factor = 0.146 Data-to-parameter ratio = 12.5 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.
The dihedral angles between the phenyl ring and the naphthalene part of the chromanone unit in the two independent molecules of the title compound, C~20~H~14~O~2~, are 56.17 (4) and 55.62 (7)°. The molecular structure is stabilized by weak intramolecular C—H...O interactions and the crystal packing