Open AccessCocrystals composed of 4,4′‐(fluorene‐9,9‐diyl)diphenol and 6‐methyl‐2 H ‐pyridone
Author(s) -
Lavy T.,
Meirovich N.,
Sparkes H. A.,
Howard J. A. K.,
Kaftory M.
Publication year - 2007
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
eISSN - 1600-5759
pISSN - 0108-2701
DOI - 10.1107/s010827010604474x
Subject(s) - cocrystal , fluorene , chemistry , hydrogen bond , 2 pyridone , crystal structure , crystallography , medicinal chemistry , stereochemistry , molecule , organic chemistry , polymer
The crystal structures of two cocrystals composed of 4,4′‐(fluorene‐9,9‐diyl)diphenol (C 25 H 18 O 2 ) and 6‐methyl‐2 H ‐pyridone (C 6 H 7 NO) are reported, namely 4,4′‐(fluorene‐9,9‐diyl)diphenol–6‐methyl‐2 H ‐pyridone (1/2), C 25 H 18 O 2 ·2C 6 H 7 NO, (I), and 4,4′‐(fluorene‐9,9‐diyl)diphenol–6‐methyl‐2 H ‐pyridone–water (1/3/3), C 25 H 18 O 2 ·3C 6 H 7 NO·3H 2 O, (II). In both cocrystals, the mutual orientation between two 6‐methyl‐2 H ‐pyridone molecules in principle enables photodimerization, yet in both cases no photodimerization occurs. In cocrystal (I) this is probably due to poor orbital overlap, while in the case of cocrystal (II) it is suggested that the lack of reaction is due to the highly complex hydrogen‐bonding network that exists in the structure.