High resolution Fourier transform spectroscopy of CH2D2in the region 2350–2650 cm−1: the bands ν5+ ν7, 2ν9, ν3+ ν4, ν3+ ν7and ν5+ ν9

Autor:	Elena Sergeevna Bekhtereva, O.N. Ulenikov, Martin Quack, S. V. Grebneva, Hans Hollenstein
Rok vydání:	2005
Předmět:	Spectrometer Chemistry Analytical chemistry General Physics and Astronomy Infrared spectroscopy Fourier transform spectroscopy symbols.namesake Full width at half maximum Apodization Excited state symbols Physical and Theoretical Chemistry Atomic physics Hamiltonian (quantum mechanics) Ground state
Zdroj:	Phys. Chem. Chem. Phys.. 7:1142-1150
ISSN:	1463-9084 1463-9076
DOI:	10.1039/b414879g
Popis:	The IR spectrum of the CH2D2 molecule has been measured in the region of 2350–2650 cm−1 on a Bomem DA002 Fourier transform spectrometer with a resolution of 0.004 cm−1 (FWHM, apodized) and analyzed with a Hamiltonian model which takes into account resonance interactions between all vibrational states in that region. More than 3000 transitions have been assigned to the bands 2ν9, ν3 + ν4, ν5 + ν9, ν5 + ν7 and ν3 + ν7 using ground state combination differences from the known ground state parameters. A set of 115 spectroscopic parameters for the excited vibrational states is obtained from a least squares adjustment. This reproduces the 646 initial upper ro-vibrational energies used in the fit with a drms = 0.0036 cm−1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c08b8f219ad822bfd70967214078c20d https://doi.org/10.1039/b414879g Zobrazit plný text záznamu