Date of Award

4-3-2000

Document Type

Dissertation

Degree Name

Doctor of Philosophy (PhD)

Department

Physics & Astrophysics

First Advisor

B. Sesh Rao

Abstract

In the last two decades precise understanding of the structure of hydrogen chloride (1H35Cl) and carbon monoxide ( 12C16O) molecules has become important in many fields such as astrophysics, meteorology, physical chemistry, and environmental science. In this dissertation the electric dipole moment functions of HCl and CO in the ground electronic state are calculated. The transition frequencies of the vibration-rotation lines in the lowest four bands of CO and the lowest seven bands of HCl were measured by various investigators. From these frequencies potential constants of these two diatomic molecules were determined by solving the time-independent Schrödinger wave equation using an anharmonic potential function given by [special characters omitted]In addition, data on spectral line intensities were available. From potential constants and line intensities the coefficients of the electric dipole moment function, M(r), were evaluated using the equation [special characters omitted]The dipole moment coefficients are then compared with the ones reported by other investigators.

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