A carbon-13 relaxation and chemical shift studies in 2- methyl-8-hydroxy-quinoline. | [Journal of Chemical Society of Pakistan • 1990]

Author(s):

1. A. W. K. Khanzada: National Centre Excellence Analytical Chemistry, University of Sindh, Jamshoro, Pakistan

2. M. A. Chippa: National Centre Excellence Analytical Chemistry, University of Sindh, Jamshoro, Pakistan

3. M. A. R. Abid: National Centre Excellence Analytical Chemistry, University of Sindh, Jamshoro, Pakistan

Abstract:

Carbon-13 chemical shift and relaxation time studies have been carried out on 2-methyl-8-hydroxyquinolien(2- methyloxine). The chemical shifts studies are for a 90% solution in CDCI3 at room temperature and are comparable to earlier work done in DMSO-d6 solution. Spin-lattice relaxation time T1 studies are for a neat compound in liquid state at 80C. The T1 range from 2.9 to 3.9 s for non-quaternary carbon atoms. Methyl carbon has T1 of 6.6 s, while for quaternary carbon atom T1's range is from 40 to 72 s. various relaxation mechanism are suggested.

Page(s): 330-332

DOI: DOI not available

Published: Journal: Journal of Chemical Society of Pakistan, Volume: 12, Issue: 4, Year: 1990

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