𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Hyperfine Structure of Rotation-Inversion Levels in the Excited ν2State of Ammonia

✍ Scribed by S.P. Belov; Š. Urban; G. Winnewisser

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
213 KB
Volume
189
Category
Article
ISSN
0022-2852

No coin nor oath required. For personal study only.

✦ Synopsis

Hyperfine structures of the rotation-inversion transitions with J Å 3 R 2, s R a, and K Å 0, 1, 2, and with J Å 0 R 1, a R s, and K Å 0 in the excited n 2 vibrational state have been resolved and measured by sub-Doppler saturation spectroscopy using the Cologne terahertz spectrometer with an accuracy of about 1 kHz. The line frequencies of the hyperfine structures of the rotation inversion transitions (at 466, 769, 742, and 763 GHz) have been simultaneously analyzed with the previously published J Å 2 R 1, s R a, K Å 1, n 2 transition in terms of effective nuclear quadrupole and spin-rotation parameters. The corresponding pure rotation-inversion frequencies, deperturbed from the hyperfine effects, have also been derived.

📜 SIMILAR VOLUMES

The ν2 and 2ν2 - ν2 bands of 14N 16O2: E
The ν2 and 2ν2 - ν2 bands of 14N 16O2: Electron Spin-Rotation and Hyperfine Contact Resonances in the (010) Vibrational State
✍ A. Perrin; J.M. Flaud; C. Camypeyret; A. Goldman; F.J. Murcray; R.D. Blatherwick 📂 Article 📅 1993 🏛 Elsevier Science 🌐 English ⚖ 375 KB

High-resolution Fourier transform spectra covering the \(720-920 \mathrm{~cm}^{-1}\) spectral region have been used to perform a reanalysis of the \(\nu_{2}\) band \(((010)-(000)\) vibrational transition \()\) together with the first analysis of the \(2 \nu_{2}-\nu_{2}\) hot band of nitrogen dioxide

Double-Modulation Submillimeter-Wave Spe
Double-Modulation Submillimeter-Wave Spectroscopy of HOC+ in the ν2 Excited Vibrational State
✍ T. Amano; A. Maeda 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 102 KB

The submillimeter-wave rotational transitions of HOC ϩ in the 2 excited state are first detected using the double-modulation method, and the precise transition frequencies and the much improved molecular constants are obtained. The measurements of the ground state HOC ϩ and DOC ϩ submillimeter-wave

High-Resolution Infrared, Microwave, and
High-Resolution Infrared, Microwave, and Submillimeter-Wave Study of FClO2 in the ν2, ν3, ν4, and ν6 Excited States
✍ J.-M. Flaud; H.S.P. Müller; H. Bürger 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 188 KB

A high-resolution analysis of the {ν 2 , ν 3 } and {ν 4 , ν 6 } bands of the two isotopomers of chloryl fluoride F 35 ClO 2 and F 37 ClO 2 has been carried out for the first time using simultaneously infrared spectra recorded around 16 µm and 26 µm with a resolution of ca. 0.003 cm -1 and microwave

Hyperfine Level Dependence of the Pressu
Hyperfine Level Dependence of the Pressure Broadening of CH3I Rotational Transitions in the v6 = 1 Vibrational State
✍ S. Belli; G. Buffa; A. Di Lieto; P. Minguzzi; O. Tarrini; M. Tonelli 📂 Article 📅 2000 🏛 Elsevier Science 🌐 English ⚖ 74 KB

We studied the hyperfine components of the ( J ϭ 10-9, Kl ϭ 9) rotational transition in the v 6 ϭ 1 excited vibrational state of CH 3 I, using collinear infrared and mm-wave radiations. The Doppler-free double-resonance technique allowed an accurate determination of the collisional broadening parame

OODR Spectroscopy of Na3and Rotational A
OODR Spectroscopy of Na3and Rotational Analysis of a Vibrationally Excited Level in theÃState
✍ Th. Stoll; E. Tiemann; D. Wendlandt 📂 Article 📅 1995 🏛 Elsevier Science 🌐 English ⚖ 129 KB

Using optical-optical double resonance techniques the rotational assignment of the A ˜2A 2 -X ˜2B 2 system of Na 3 could be extended to transitions involving vibrationally excited levels in the A state. About 30 measured transition frequencies were fitted, using the Hamiltonian of an asymmetric roto

Raman excitation profiles and molecular
Raman excitation profiles and molecular structures in the excited electronic states of 2,2′-dipyridylamine
✍ S. Chattopadhyay; P. Jana; A. Mitra; S. K. Sarkar; T. Ganguly; P. K. Mallick 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 372 KB 👁 2 views

Raman excitation proÐles (REPs) of several totally symmetric vibrations of 2,2º-dipyridylamine (DPA) were measured and analysed. Possible molecular structures and other interesting properties of the molecule in the excited electronic states are discussed. Normal-mode characteristics are also describ