# ALGEBRAIC ANALYSIS OF BENT-FROM-LINEAR TRANSITION INTENSITIES: THE EMISSION SPECTRUM OF METHINOPHOSPHIDE (HCP)

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 Title: ALGEBRAIC ANALYSIS OF BENT-FROM-LINEAR TRANSITION INTENSITIES: THE EMISSION SPECTRUM OF METHINOPHOSPHIDE (HCP) Creators: Pérez-Bernal, F.; Iachello, F.; Vaccaro, P. H.; Ishikawa, H.; Toyosaki, H. Issue Date: 2003 Abstract: Emission spectra obtained from bulk-gas methinophosphide (HCP) have been interpreted through use of a novel algebraic scheme that explicitly takes into account inherent non-rigidity of the molecular $framework.^{a}$ Fluorescence accompanying selective excitation of individual $\tilde{A}^{1}A^{\prime \prime}- \tilde{X} {^{1}}\Sigma$ vibronic bands was dispersed under moderate resolution, with the appearance of substantial activity in the $\nu_{2}$ bending mode reflecting the bent-from-linear nature of the $\tilde{A} \leftarrow \tilde{X}$ transition. Aside from providing an economical parameterization for observed patterns of vibrational term energies, the algebraic approach affords a robust and facile means for the quantitative evaluation of multidimensional Franck-Condon factors. These results, as well as subsequent extensions designed to account for non-Condon effects, will be discussed in order to further elucidate the unique structure and dynamics exhibited by participating electronic states. URI: http://hdl.handle.net/1811/20948 Other Identifiers: 2003-RI-15