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http://hdl.handle.net/2289/2522
Title: | Orientation and molecular structure of 1,5 and 1,8 dichloroanthraquinones by PMR in a nematic solution |
Authors: | Sharma, B.B. Saupe, A. Khetrapal, C.L. Kunwar, A.C. |
Issue Date: | Sep-1983 |
Publisher: | Gordon and Breach Science Publishers. |
Citation: | Molecular Crystals and Liquid Crystals, 1983, Vol.95, p359-366 |
Abstract: | The structures and the order parameters of 1,5 and 1,8 dichloroanthraquinones have been determined from the dipolar couplings between the protons in the nematic solutions. The results show the effect of steric interactions on the molecular structure. The aromatic rings of 1,8 dichloroanthraquinone are in different planes making an angle of 15° while 1,5 dichlo-roanthraqutnone appears to be flat. The two molecules show peculiar differences in orientation. The "in-plane" order parameters of the 1,8 derivative are about equal while the 1,5 derivative has a strongly preferred alignment axis close to the Cl, Cl internuclear axis. |
Description: | Restricted Access. |
URI: | http://hdl.handle.net/2289/2522 |
ISSN: | 1058-725X |
Alternative Location: | http://dx.doi.org/10.1080/00268948308072475 |
Copyright: | 1983 OPA (Overseas Publishers Association) N.V. |
Appears in Collections: | Research Papers (SCM) |
Files in This Item:
File | Description | Size | Format | |
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1983 MCLC V95 p359.pdf Restricted Access | Restricted Access | 208.44 kB | Adobe PDF | View/Open Request a copy |
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