Heisenberg spin exchange and chemical electron exchange in napthalene negative ion- an electron spin-lattice relaxation study

Das, Ranjan ; Venkataraman, Balu (1985) Heisenberg spin exchange and chemical electron exchange in napthalene negative ion- an electron spin-lattice relaxation study Proceedings of the Indian Academy of Sciences - Chemical Sciences, 95 (1-2). pp. 117-128. ISSN 0253-4134

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Official URL: http://www.ias.ac.in/j_archive/chemsci/95/1/117-12...

Related URL: http://dx.doi.org/10.1007/BF02839722

Abstract

Electron spin-lattice relaxation times (T1e) as determined by saturation recovery technique and linewidths have been investigated as a function of the concentration of napthalene anion and the unreduced napthalene in dimethoxyethane from conditions of slow exchange to fast exchange. It was observed that Heisenberg spin exchange was more effective in determining T1e and linewidth than chemical exchange at comparable concentrations. Contrary to earlier findings, T1e was found to depend on the radical concentration even at the fast exchange regime.

Item Type:Article
Source:Copyright of this article belongs to Indian Academy of Sciences.
Keywords:Electron Spin-lattice Relaxation; ESR; Chemical Exchange; Heisenberg Exchange; Aromatic Anions; Napthalene Negative Ion; Saturation Recovery Technique
ID Code:56519
Deposited On:24 Aug 2011 11:19
Last Modified:18 May 2016 08:17

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