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1H NMR study of molecular dynamics in dihydrazinium sulphate

Ganesan, K and Damle, R and Ramakrishna, J (1990) 1H NMR study of molecular dynamics in dihydrazinium sulphate. In: Spectrochimica Acta Part A: Molecular Spectroscopy, 46 (11). pp. 1549-1553.

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Official URL: http://dx.doi.org/10.1016/0584-8539(90)80265-Z


The proton spin-lattice relaxation time $T_1$ and second moment $M_2$ have been measured in dihydrazinium sulphate $(N_2H_5)_2SO_4$ in the temperature range $77 \sim 300 K$ to understand the nature of molecular motions. Two $T_1$ minima and an $M_2$ transition have been observed. The observed $T_1$ minima have been explained in terms of the reorientation of two inequivalent $NH_3$ groups. The second moment behaviour has been interpreted in terms of $NH_3/NH_2$ motions. The activation energies of the inequivalent $NH_3$ groups are found to bc 28.9 and $28.5 kJ mol^1$.

Item Type: Journal Article
Publication: Spectrochimica Acta Part A: Molecular Spectroscopy
Publisher: Elsevier Science
Additional Information: Copyright of this article belongs to Elsevier Science.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 15 Jul 2007
Last Modified: 30 Jan 2012 05:08
URI: http://eprints.iisc.ac.in/id/eprint/11564

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