UV-VISIBLE TRANSITION STRENGTHS OF THE HALOGENS IN THE GAS PHASE AND IN INERT LIQUID SOLVENTS
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Date
2001
Journal Title
Journal ISSN
Volume Title
Publisher
Ohio State University
Abstract
The UV-visible absorption spectra of the homonuclear halogens involve three electronic bands --- $A-X$, $B-X$, and $B^{\prime}(1_{u})-X$. It has long been known that the absorption in inert solvents is stronger than that in the gas phase by $20-30I_{2}$ and $Br_{2}$ in $CCl_{4}$ and n-heptane are recorded at temperatures from 15 C to 50 C and are decomposed into component bands by least-squares analysis. The results of this analysis show: (1) the $A-X$ band strength is the same within 5increased absorption strength in the liquid phase is attributable mostly if not entirely to the $B^{\prime}-X$ transition. The reasons for this behavior are under investigation.
Description
Author Institution: Vanderbilt University; Department of Chemistry, Vanderbilt University