✦ LIBER ✦

A study on the vibrational and reorientational contributions to the bandwidths of the symmetric methyl stretching vibration in a series of compounds

✍ Scribed by F.G. Dijkman

Publisher: Elsevier Science
Year: 1978
Tongue: English
Weight: 473 KB
Volume: 57
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(78)85547-x

No coin nor oath required. For personal study only.

✦ Synopsis

Infrared andXaman isotropic bandwidths are reported for the symmetric methyl stretching vibration in a series of corn-pounds in which the length of the Cs symmetry axis gradually increases_ The magnitude of the 2 = 1 orientational width is shown to depend on the moment of inertia for small molecules in the series_ For the kngest molecules a viscosity drag model seems to account better for the observed width.

📜 SIMILAR VOLUMES

Separation of vibrational dephasing and

Separation of vibrational dephasing and reorientational contributions to the infrared and Raman lineshapes in a simulation of MeCN

✍ P.-O. Westlund; R.M. Lynden-Bell 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 302 KB

Vibrational relaxation in liquids with i

Vibrational relaxation in liquids with intermolecular dipole potentials of the order of kT: A Raman study of the CO-stretching vibration band of liquid methyl ethyl ketone

✍ Doris Scheibe 📂 Article 📅 1982 🏛 John Wiley and Sons 🌐 English ⚖ 676 KB

## Abstract The Raman band of the CO‐stretching vibration of methyl ethyl ketone has been recorded in the temperature range 233 K to 343 K, and also at 293 K in various solvents at various concentrations. This polarized Raman band shows asymmetry and a non‐coincidence of the iso‐ and anisotropic f

Dephasing of the ν1(Σ+) and ν3(Σ+) vibra

Dephasing of the ν1(Σ+) and ν3(Σ+) vibrations of SCN- anion in molten KSCN: a stretched exponential study

✍ Sviatoslav A. Kirillov; George A. Voyiatzis; Inna S. Musiyenko 📂 Article 📅 1998 🏛 John Wiley and Sons 🌐 English ⚖ 236 KB

On the assumption that the stretching exponent value in the stretched exponential model is the same for both and vibrations of SCN-, an "additionalÏ broadening of the line has been identiÐed and attributed m 1 (R') m 3 (R') m 1 to dissipative losses due to ion-dipole interactions between cations and

Bone marrow cells from myelodysplastic s

Bone marrow cells from myelodysplastic syndromes show altered immunophenotypic profiles that may contribute to the diagnosis and prognostic stratification of the disease: A pilot study on a series of 56 patients

✍ Sergio Matarraz; Antonio López; Susana Barrena; Carlos Fernandez; Evan Jensen; J 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 621 KB

Studies on sex differentiation and sex d

Studies on sex differentiation and sex determination in amphibians. IV. The geographical distribution of the sex races of the European grass frog (Rana temporaria, L.). A contribution to the problem of the evolution of sex

✍ Witschi, Emil 📂 Article 📅 1930 🏛 John Wiley and Sons 🌐 English ⚖ 892 KB

Conformational analysis: XIV—A 1H n.m.r.

Conformational analysis: XIV—A 1H n.m.r. conformational study of methyl substituted 2-oxo-1,3,2-dioxathians to confirm the predominance of chair forms in the trimethylene sulphite series

✍ Hannu Nikander; Veli-Matti Mukkala; Timo Nurmi; Kalevi Pihlaja 📂 Article 📅 1976 🏛 John Wiley and Sons 🌐 English ⚖ 453 KB

## Abstract Seven isomeric 4,5,6‐trimethyl‐2‐oxo‐1,3,2‐dioxathians, __cis__‐4‐__trans__‐6‐dimethyl‐__r__‐2‐oxo‐1,3,2‐dioxathian and two isomeric 4,5,5,6‐tetramethyl‐2‐oxo‐1,3,2‐dioxathians were prepared and their ^1^H n.m.r. spectra analysed. The values of the vicinal coupling constants reported ea