Sugunan, S; Anantaraman, R(Indian Journal of Chemistry, December , 1982)
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Abstract:
Kinetics of mercuric chloride catalysed solvolysis of l-butyl
chloride, benzyl chloride. p-methylbenzyl chloride, l-phenylethyl
chloride and triethylcarbinyl chloride have been studied in aq.
DMSO, aq. acetonitrile and aq. ethanol. The kinetic data fit a second
order rate equation in aq. DMSO. The calculated values of the
second order rate coefficients increase in the case of aq. acetonitrile
and aq. ethanol. The order in catalyst in 95%(v/v) aq. DMSO is less
than unity.
Sugunan, S(Indian Journal of Chemistry, September , 1984)
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Abstract:
The Setschenow parameters of solubility in salt solutions and the
thermodynamic parameters (25·C) of transfer from aqueous
solution to aqueous salt solutions for 2-nitrobenzoic acid and 3-nitrobenzoic
acid have been reported. The data have been
rationalized on the basis of the localized hydrolysis model and the
structure breaking action of ions of the electrolytes.
Reghunath, A T; Nampoori, V P N(Springer, November , 1987)
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Abstract:
Using laser transmission, the characteristics of hydrodynamic turbulence is studied following one of the recently developed technique in nonlinear dynamics. The existence of deterministic chaos in turbulence is proved by evaluating two invariants viz. dimension of attractor and Kolmogorov entropy. The behaviour of these invariants indicates that above a certain strength of turbulence the system tends to more ordered states.
Abdul Rasheed, T M; Nampoori, V P N; Sathianandan, K(Chemical Physics, 1986)
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Abstract:
The vibrational overtone spectra 0f the liquid phase 1,2-dichloroethane and 1,2-dibromoethane in the spectral regions of
CH stretching local mode overtones corresponding to delta v CH= = 2 to delta v CH=5 are reported. The observed spectral features are
assigned using the local mode model. LocaI mode frequencies WCH and diagonal local mode anharmonicities XCH are
obtained from an analysis of the spectra. The local-local combinations observed are interpreted on the basis of a coupled CH
oscillator model hamiltonian. Local-normal combinations show complex structures and their possible assignments are given.
Anantaraman, R; Sugunan, S(Indian Journal of Chemistry, August , 1982)
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Abstract:
Kinetics of mercuric chloride catalysed solvolysis of benzyl chloride have been studied in water. 10% aq. ethanol, 10,20 and
30% aq. acetone and 20% aq. DMSO. The results confirm the operation of a mass law effect.
Pratap, R; Nampoori, V P N; Lalaja, Varghese(International Journal of Neuroscience, 1988)
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Abstract:
It is shown that the invariant integral, viz., the Kolmogorov second entropy, is eminently suited to characterize EEG quantitatively. The estimation obtained for a "clinically normal" brain is compared with a previous result obtained from the EEG of a person under epileptic seizure.