Rotational contours of the (2 / 1) resonance enhanced multiphoton ionization (REMPI) spectra of the vibrational bands corresponding to the 2 1 P g R X transitions in 35 Cl 2 , 35 Cl 37 Cl, and 37 Cl 2 for the natural abundance of isotopes have been recorded at room temperature. Vibrational bands con
High-Resolution Stimulated Raman Spectroscopy of 35Cl2, 37Cl2, and 35Cl37Cl
✍ Scribed by D. Bermejo; J.J. Jiménez; R.Z. Martı́nez
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 221 KB
- Volume
- 212
- Category
- Article
- ISSN
- 0022-2852
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✦ Synopsis
A high-resolution rovibrational Raman spectrum of a sample of Cl 2 has been recorded at room temperature using a quasi-cw stimulated Raman technique. Three Q-branch structures belonging to the fundamental vibrations of the three chlorine isotopomers present in the sample in natural abundances and two weaker Q branches belonging to the first hot bands of the two more abundant isotopomers, 35 Cl 2 and 35 Cl 37 Cl, have been observed. Lines with values of J up to 60 for the fundamentals and 50 for the hot bands have been measured in these fully resolved structures. Some additional lines belonging to O and S branches of the fundamentals and hot bands have also been recorded. The analysis of these data has rendered a new and more precise set of rotational molecular constants and band origins for the first three vibrational states of the chlorine isotopomers.
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## Abstract Isotope effects on the chemical shift of ^13^C directly bonded to the isotopes ^35^Cl and ^37^Cl are reported for a wide range of chlorohydrocarbons. By recording ^13^C NMR spectra under conditions of composite pulse ^1^H decoupling, ^13^C resonances can be obtained that are sufficientl
## Abstract Chemically and isotopically pure Al^35^Cl~3~ and Al^37^Cl~3~ are synthesized from Al (s) and HCl (g). The yield is quantitative and no measurable decrease in isotopic content from HCl to AlCl~3~ takes place.
O-enriched, monolabeled perchloryl fluoride, 19 F 35/37 Cl 16 O 2 18 O, has been synthesized. Its rotational spectrum has been studied in the 4-22 GHz region. In addition, the spectra of the symmetric isotopomers 19 F 35/37 Cl 16 O 3 have been reinvestigated. Rotational and centrifugal distortion co