𝔖 Bobbio Scriptorium
✦   LIBER   ✦

LIF spectroscopy of the MgCCH free radical

✍ Scribed by Gary K. Corlett; Alison M. Little; Andrew M. Ellis

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
372 KB
Volume
249
Category
Article
ISSN
0009-2614

No coin nor oath required. For personal study only.

✦ Synopsis

We report the first observation of the electronic spectrum of the free radical MgCCH. This molecule was prepared in a supersonic expansion by laser ablation of magnesium in the presence of methane. A strong laser-induced fluorescence excitation spectrum was found in the 415-440 nm region and was assigned to part of the ,~2H-~(2,E+ system. The spectrum is dominated by a single vibrational progression of interval 552 cm ~ which has been assigned to the Mg-C stretch in the ,~ state. A preliminary rotational analysis has shown that the rotational constant, B0, in the ,A 211 state is larger than that in the )( 2~ + state, indicating a stronger Mg-C bond in the excited electronic state.

πŸ“œ SIMILAR VOLUMES

Electron spin resonance spectroscopy of
Electron spin resonance spectroscopy of free radicals
✍ Shirley A. Fairhurst; Leslie H. Sutcliffe; Keith F. Preston; Arthur J. Banister; πŸ“‚ Article πŸ“… 1993 πŸ› John Wiley and Sons 🌐 English βš– 301 KB

## Abstract Solution and powder ESR spectra of the 4‐trifluoromethyl‐1,2,3,5‐dithiadiazolyl and 4‐pentafluorophenyl‐1,2,3,5‐dithiadiazolyl free radicals were analysed. Comparison of the ESR parameters with those obtained for the protonated equivalents shows that fluorination produces a drift of unp

Muon level-crossing spectroscopy of orga
Muon level-crossing spectroscopy of organic free radicals
✍ Paul W. Percival; Robert F. Kiefl; Syd R. Kreitzman; David M. Garner; Stephen F. πŸ“‚ Article πŸ“… 1987 πŸ› Elsevier Science 🌐 English βš– 510 KB

Muon level-crossing spectroscopy has been applied to the study of muonium-substituted radicals formed in liquid benzene, hexadeuterobenzene, furan, 2-metbylpropene, 2,3-dimethyl-2-butene, and gaseous ethene. The magnitudes and signs of the proton and deuteron hyperfine constants are reported, and ar

Dispersed Fluorescence Spectroscopy of t
Dispersed Fluorescence Spectroscopy of the ZnC2H5Free Radical
✍ Simon J. Pooley; Andrew M. Ellis πŸ“‚ Article πŸ“… 1997 πŸ› Elsevier Science 🌐 English βš– 146 KB

Dispersed fluorescence spectra of the zinc monoethyl radical are presented. These have allowed vibrational frequencies of several modes in the ground electronic state of this molecule to be determined for the first time. In particular, substantial activity in both the Zn-C stretch and the Zn-C-C ben