13C Spin-Lattice Relaxation Times in Liquid Crystalline p,p′-Azoxyanisole
- 1 May 1977
- journal article
- research article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 50 (5), 1295-1297
- https://doi.org/10.1246/bcsj.50.1295
Abstract
The 13C spin-lattice relaxation time T1 in the liquid crystalline compound p,p′-azoxyanisole; (PAA; 4,4′-dimethoxyazoxybenzene) was observed in the nematic and isotropic liquid phases. From the obtained T1’s of the ring and the methyl carbons, the anisotropic rotational diffusion constants were determined. It is concluded that the rotational reorientation around the molecular axis is faster by an order of 103 than the rotational motion around the axis perpendicular to the molecular axis in the nematic and isotropic liquid states.Keywords
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