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AN ANALYSIS OF THE ROTATIONAL STRUCTURE OF THE $b ^{3}\Sigma^{+} - a ^{3}\pi$ BAND SYSTEM OF AlCl

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/29180

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Title: AN ANALYSIS OF THE ROTATIONAL STRUCTURE OF THE $b ^{3}\Sigma^{+} - a ^{3}\pi$ BAND SYSTEM OF AlCl
Creators: Leknov, S.; Mathews, C. W.
Issue Date: 1982
Abstract: The $b ^{3}\Sigma^+ - a ^{3}\pi$ band system of AlCl occurs between $5612 and 5265 \AA$, as initially reported by $Sharma.^{1}$ New high resolution emission data, along with the results of a recently completed rotational analysis of the $a^{3}\pi - X ^{1}\Sigma^{+}$ $system^{2}$, enable us to analyze the rotational structure of the 0-0 band of the $b ^{3}\Sigma^{+} - a ^{3}\pi$ system. The three sub-bands of the system are well separated, and the structure within each sub-band is reasonably well resolved. This band is very similar to the corresponding band in AlF, as analyzed by $Brown et al^{3}$, in that the $b ^{3}\Sigma^{+}$ state shows pronounced hyperfine interactions. The hyperfine structure is not fully resolved in our studies, but each line is resolved into two or three principal groups. Preliminary estimates of these splittings show they are similar in magnitude to those of AlF, as might be expected if they are associated primarily with the aluminum atom. More thorough analysis through line shape analysis is currently in progress.
URI: http://hdl.handle.net/1811/29180
Other Identifiers: 1982-MG-12
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