Shastry, C. I. V. and Babu, A. M. and Sridhar, M. A. and Bellad, S. B. and Indira, A. and Shashidhara Prasad, J. (1992) Crystal structure of mesogenic material – trans-4-propyl cyclohexyl-4-(traiis-4-pentyl cyclohexyl) benzoate. Zeitschrift Fur Kristallographie, 201 (3-4). pp. 177-182.
Full text not available from this repository. (Request a copy)Abstract
The compound (C27H42O2) crystallizes in the triclinic space group P1BAR with a = 7.292(2) angstrom, b = 11.417(2) angstrom, c = 15.175(3) angstrom, alpha = 86.27(2)-degrees, beta = 83.11(3)-degrees, gamma = 88.94(2)-degrees and two molecules per unit cell. D(c) = 1.058 Mg.m-3. The structure was solved by direct methods (MULTAN) using 1746 observed reflections I > 3.5-sigma(I)]. It was refined by block diagonal least squares method to a final Rf = 0.092 (Rw = 0.073). The central phenyl ring makes angles of 111.77(18)-degrees and 125.05(18)-degrees with the mean planes of the two cyclohexane rings. The mean planes of the two cyclohexane rings make an angle of 14.53(19)-degrees. The pairs of molecules related by a centre of symmetry form an imbricated arrangement in the crystalline state when viewed along c and a strong layering when viewed along a.
| Item Type: | Article |
|---|---|
| Subjects: | D Physical Science > Physics |
| Divisions: | Department of > Physics |
| Depositing User: | Users 23 not found. |
| Date Deposited: | 13 May 2021 04:13 |
| Last Modified: | 01 Dec 2022 06:16 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/16480 |
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