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5. Rotational Spectrum of Dichloromethane–Ne: Internal Dynamics and Cl Quadrupolar Hyperfine Effects

Author

Laura B. Favero, Walther Caminati, Assimo Maris, Laura Paltrinieri, DIPARTIMENTO DI CHIMICA 'GIACOMO CIAMICIAN', Facolta' di SCIENZE MATEMATICHE FISICHE e NATURALI, AREA MIN. 03 - Scienze chimiche, Da definire, Favero, Laura B., Maris, Assimo, Paltrinieri, Laura, and Caminati, Walther

Subjects
Physical and Theoretical Chemistry: dichloromethane - neon molecular complex, molecular beam Fourier transform microwave spectroscopy, tunnelling splittings, large amplitude motions, chlorine quadrupole coupling constants, large amplitude motions, tunnelling splittings, chlorine quadrupole coupling constants, tunneling splitting, Chemistry, Physical and Theoretical Chemistry: dichloromethane - neon molecular complex, Analytical chemistry, Furier trasform high resolution microwave spectroscopy, Planarity testing, Spectral line, symbols.namesake, Fourier transform, rare gas adduct, Quadrupole, symbols, Isotopologue, molecular beam Fourier transform microwave spectroscopy, Rotational spectroscopy, Physical and Theoretical Chemistry, Hyperfine structure, Molecular beam
Abstract

none 4 no The rotational spectra of three isotopologues, CH235Cl2···20Ne, CH235Cl37Cl···20Ne, and CH235Cl2···22Ne, of the complex dichloromethane-neon have been assigned and measured by molecular beam Fourier transform microwave spectroscopy. The corresponding tunnelling splittings-due to the motion of Ne from above to below the ClCCl plane-have been determined as E0+0- = 6.8900(5), 6.6630(4), and 6.3724(7) MHz, respectively. From these data the barrier to planarity has been obtained, B2 = 68.7 cm-1. In addition, the structure and the 35Cl (or 37Cl) quadrupole coupling constants have been determined. Favero, Laura B.; Maris, Assimo; Paltrinieri, Laura; Caminati, Walther Favero, Laura B.; Maris, Assimo; Paltrinieri, Laura; Caminati, Walther

Published
2015

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