✦ LIBER ✦

2-(2-Chlorophenyl)-7-methyl-4H-chromen-4-one

✍ Scribed by Wang, Xiao-Bing ;Kong, Ling-Yi

Publisher: International Union of Crystallography
Year: 2007
Tongue: English
Weight: 446 KB
Volume: 63
Category: Article
ISSN: 1600-5368
DOI: 10.1107/s1600536807050155

No coin nor oath required. For personal study only.

✦ Synopsis

The title compound, C~16~H~11~ClO~2~, is a synthetic flavonoid. The fused-ring system is almost planar, with a mean deviation from the least-squares plane of 0.0204 (2) Å. The dihedral angle between the chromene group and the chlorophenyl ring is 50.9 (6)°, due to unfavourable steric interactions with the Cl atom. Aromatic π–π stacking interactions between the fused benzene (π-rich) and pyran (π-deficient) rings are observed, with a centroid–centroid distance of 3.578 Å.

📜 SIMILAR VOLUMES

7-Hydroxy-4-methyl-2H-chromen-2-one mono

7-Hydroxy-4-methyl-2H-chromen-2-one monohydrate

✍ Butcher, Ray J. ;Jasinski, Jerry P. ;Yathirajan, H. S. ;Narayana, B. ;Samshad, 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 960 KB

2-(Dibromomethyl)-4H-chromen-4-one

✍ Huang, Wei 📂 Article 📅 2005 🏛 International Union of Crystallography 🌐 English ⚖ 226 KB

In the crystal structure of the title compound, C 10 H 6 Br 2 O 2 , centrosymmetric hydrogen-bonded dimers are formed via C-HÁ Á ÁO hydrogen bonds.stacking interactions involving these dimers are also observed.

4-Methyl-7-[3-(4-o-tolylpiperazin-1-yl)

4-Methyl-7-[3-(4-o-tolylpiperazin-1-yl)propoxy]-2H-chromen-2-one

✍ Zhou, Xiang ;Wang, Xiao-Bing ;Kong, Ling-Yi 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 150 KB

The piperazine ring adopts an almost perfect chair conformation. Intermolecularinteractions and C-HÁ Á ÁO hydrogen bonds stabilize the crystal packing.

2-Anilino-3-benzoyl-4-(2-chlorophenyl)

2-Anilino-3-benzoyl-4-(2-chlorophenyl)-7,7-dimethyl-7,8-dihydro-4H-chromen-5(6H)-one

✍ Li, Ming ;Sun, En-Tao ;Wen, Li-Rong 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 371 KB

There are two independent molecules in the asymmetric unit of the title compound, C 30 H 26 ClNO 3 . Both molecules are linked through C-HÁ Á ÁO hydrogen bonds into centrosymmetric dimers, providing stabilization.

4,6-Dimethyl-2H-chromen-2-one

✍ Wang, He-Wen ;Feng, Ya-Qing ;Xue, Jin-Qiang ;Shi, Zhi-Qiang 📂 Article 📅 2007 🏛 International Union of Crystallography 🌐 English ⚖ 540 KB

Potassium (4-methyl-2-oxo-2H-chromen-7-y

Potassium (4-methyl-2-oxo-2H-chromen-7-yloxy)sulfate

✍ Sierosławski, Krzysztof ;Ślepokura, Katarzyna ;Lis, Tadeusz 📂 Article 📅 2006 🏛 International Union of Crystallography 🌐 English ⚖ 204 KB

Single-crystal X-ray study T = 100 K Mean (C-C) = 0.004 A R factor = 0.056 wR factor = 0.105 Data-to-parameter ratio = 12.2 For details of how these key indicators were automatically derived from the article, see http://journals.iucr.org/e.