Showing papers by "V. R. K. Murthy published in 2001"
TL;DR: In this paper, the dielectric properties of the hydrogen-bonded binary system of methyl benzoate and N-methylaniline were studied on both pure and equimolar binary mixtures of mixtures in dilute solutions of benzene.
Abstract: The dielectric properties of the hydrogen bonded binary system of non-associated polar liquid methyl benzoate (ester) and associated polar liquid N-methylaniline (secondary amine) were studied on both pure and equimolar binary mixtures of methyl benzoate and N-methylaniline in dilute solutions of benzene. AM 1 semi-empirical calculations were performed on various conformers of the hydrogen bonded complex. The minimum enery conformer was selected and self-consistent reaction field calculations were performed on the resultant geometry to include solvent effects. The experimental value of dipole moment is compared with the calculated value for the conformers.
13 citations
01 Jul 2001
TL;DR: In this paper, a semi-empirical analysis of the dielectric properti es or the hydrogen bonded binary system of non-associated polar liquid methyl benzoate (ester) and rolar liquid ani line (primary am~) has been performed.
Abstract: Th dielectric properti es or the hydrogen bonded binary system of non-associated polar liquid methyl benzoate (ester) and rolar liquid ani line (primary am~) have been smttrectOn15OtiiPure and equ imolar binary mixtures of methyl benzoate and an iline in dilute so lutions of benzene. AM I semi -empiri ca l calcu lati ons are performed on various conformers of the hydrogen honded comrlex . The minimum cnergy conformer is then selected and ah initio geometry optimization is rcrrormeci with 6-3! g(d ) hasis set. Self-consistent reaction fie ld calculations have been performed on the resu ltant geometry to include solvent effects. The calculated dipole moment is compared with the experimental valoe.) I b V
4 citations
TL;DR: In this paper, the resonant frequencies in dielectric disc were investigated using ring resonator model, and the structural design parameters were used to generate a nume!ical expression for describing the operational frequencies useful for computeraided design applications.
Abstract: The modal spectrum of the whispering gallery modes of dielectric resonator depends mainly on its physical dimensions, dielectric constant, and to a lesser extent, on the environment. This paper carries investigation of the resonant frequencies in dielectric disc utilising the ring resonator model. Results of the structural design parameters are used to generate a nume!ical expression for describing the operational frequencies useful for computer-aided design applications. Theoretical and experimental results are given for resonators of various sizes.
2 citations