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OPTICAL STARK SPECTROSCOPY OF CHLORO-METHYLENE, HCCl

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/49306

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Title: OPTICAL STARK SPECTROSCOPY OF CHLORO-METHYLENE, HCCl
Creators: Zhuang, Xiujuan; Steimle, Timothy C.; Wang, Zhong
Issue Date: 2011
Abstract: The optical spectrum of chloro-methylene, HCCl, has been studied for more than 40 years by both conventional, {\textbf{44}} 525 1966.} and laser-based, {\textbf{97}} 194 1983.}, {\textbf{173}} 391 1995.}, {\textbf{225}} 43 2004.} spectroscopy. Surprisingly, numerous visible bands have yet to be characterized, due in part to known perturbations. Furthermore, the permanent electric dipole moment, $\mu_{el}$, for any state has yet to be determined. Here we report on the field-free and optical Stark spectrum of the $\~{A}$^{1}$$A$^{\prime\prime}$$ (060)- $\~{X}$^{1}$$A$^{ \prime}$$(000)$ band system. A cold molecular beam sample was produced by skimming the output of a pulsed discharge source and the spectrum recorded at a resolution of approximately 30 MHz via LIF detection. The field-free spectrum was analyzed to produce an improved set of spectroscopic parameters for the $\~{A}$^{1}$$A$^{\prime\prime}$$(060)$state. The Stark induced shifts were analyzed to determine the values of the $a$-component of $\mu_{el}$ for the $\~{X}$^{1}$$A$^ {\prime}$$(000)$state of 0.498(8)D. Small perturbations in the $\~{A}$^{1}$$A$^{\prime\prime}$$(060)$state will be described.
URI: http://hdl.handle.net/1811/49306
Other Identifiers: 2011-RD-05
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