Chopra, Deepak ; Nagarajan, K. ; Guru Row, Tayur N. (2005) Polymorphism in 1-(4-Fluorophenyl)-3,6,6-trimethyl-2- phenyl-1,5,6,7-tetrahydro-4H-indol-4-one: a subtle interplay of weak intermolecular interactions Crystal Growth & Design, 5 (3). pp. 1035-1039. ISSN 1528-7483
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Official URL: http://pubs.acs.org/doi/abs/10.1021/cg049656k
Related URL: http://dx.doi.org/10.1021/cg049656k
Abstract
An understanding of structural features associated with polymorphism in an anti-implantation agent has been made in terms of morphology, single-crystal structure, powder X-ray diffraction, and differential scanning calorimetric measurements. Polymorph 1 (P1) crystallizes from a solution in dichloromethane/hexane in monoclinic, noncentro symmetric P21 (as plates), whereas the second polymorph (P2) crystallizes from a solution in EtOH/acetone in tetragonal, centro symmetric P42/n (as blocks). P1 is stabilized by C-H...O and C-H...p intermolecular interactions forming molecular chains, while P2 is stabilized by C-H...O and C-H...p dimers and a not so common F...F intermolecular interaction.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to American Chemical Society. |
| ID Code: | 93207 |
| Deposited On: | 13 Jun 2012 10:36 |
| Last Modified: | 11 Jul 2012 03:58 |
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