Vibrational spectra of eight isotopic species, valence force constants and rotational barrier of 2-chloropropene

1965 ◽  
Vol 21 (1) ◽  
pp. 51-76 ◽  
Author(s):  
H. Hunziker ◽  
Hs.H. Günthard
Keyword(s):  
Vibrational Spectra ◽  
Rotational Barrier ◽  
Force Constants ◽  
Valence Force ◽  
Isotopic Species

Schwingungsspektren und Kraftkonstanten der Hexacyano-Komplexe des Mangan(I), Technetium(I) und Rhenium(I) / Vibrational Spectra and Force Constants of the Hexacyano Complexes of Mangan(l), Technicium(I) and Rhenium(l)

1972 ◽  
Vol 27 (8-9) ◽  
pp. 1193-1196 ◽  
Author(s):  
W. Krasser ◽  
K. Schwochau
Keyword(s):  
Force Field ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Point Group ◽  
Force Constants ◽  
Irreducible Representations ◽  
Infrared And Raman Spectra ◽  
Valence Force ◽  
Valence Force Field ◽  
Complex Salts

The infrared and Raman spectra of the complex salts K5[Mn(CN)6], K5[Tc(CN)6] and K5[Re(CN)s] have been recorded in the range from 4000 to 40 cm-1. All expected fundamental vibrations have been observed and could be assigned to the irreducible representations of the sym­metry point group Oh . The calculation of the force constants is based on the concept of the generalized valence force field. The low CN-valence force constants indicate the relatively strong Π-bonding character of the metal carbon bond, which is especially pronounced for K5[Tc(CN)6).

Vibrational Spectra and Force Constants for Isotopic Species of Nitrosyl Chloride

1968 ◽  
Vol 49 (2) ◽  
pp. 581-585 ◽  
Author(s):  
Llewellyn H. Jones ◽  
Robert R. Ryan ◽  
Larned B. Asprey
Keyword(s):  
Vibrational Spectra ◽  
Force Constants ◽  
Nitrosyl Chloride ◽  
Isotopic Species

scholarly journals Vibrational Spectra and Force Constants of Tetrasulfurtetranitride, S4N4 [1]

1981 ◽  
Vol 36 (8) ◽  
pp. 850-858 ◽  
Author(s):  
Ralf Steudel
Keyword(s):  
Force Field ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Point Group ◽  
Force Constants ◽  
Infrared And Raman Spectra ◽  
Valence Force ◽  
Group D ◽  
Single Bonds ◽  
Good Agreement

Abstract Infrared and Raman spectra of solid and dissolved S414N4 and of solid S415N4 have been recorded and assigned in accordance with the molecular point group D2d. 22 of the 28 fundamental vibrations of both molecules have been identified and used to calculate force constants applying a modified Urey-Bradley force field with 9 independent constants. Good agreement between observed and calculated wavenumbers was obtained, and both Urey-Bradley and valence force constants are given. The results indicate that-S4N4 basically contains eight SN single bonds and two extremely weak SS bonds.

Force constants of the hexacarbonyls of chromium, molybdenum, and tungsten from the vibrational spectra of isotopic species

1969 ◽  
Vol 8 (11) ◽  
pp. 2349-2363 ◽  
Author(s):  
Llewellyn Hosford Jones ◽  
Robin S. McDowell ◽  
Maxwell Goldblatt
Keyword(s):  
Vibrational Spectra ◽  
Force Constants ◽  
Isotopic Species ◽  
And Tungsten

Force Constants of Nickel Carbonyl from Vibrational Spectra of Isotopic Species

1968 ◽  
Vol 48 (6) ◽  
pp. 2663-2670 ◽  
Author(s):  
Llewellyn H. Jones ◽  
Robin S. McDowell ◽  
Maxwell Goldblatt
Keyword(s):  
Vibrational Spectra ◽  
Force Constants ◽  
Nickel Carbonyl ◽  
Isotopic Species

scholarly journals Semiempirical Calculation of the Rotational Barrier and Valence Force Constants in Fluorocarbonylsulfenyl Chloride

1983 ◽  
Vol 38 (1) ◽  
pp. 61-63
Author(s):  
A. H. Jubert ◽  
C. O. Della Védova ◽  
E. L. Varetti ◽  
O. E. Piro ◽  
P. J. Aymonino
Keyword(s):  
Semiempirical Calculation ◽  
Rotational Barrier ◽  
Force Constants ◽  
Cndo Method ◽  
Normal Coordinate ◽  
Valence Force ◽  
Related Compounds ◽  
Normal Coordinate Calculation

Abstract The rotational barrier about the C-S bond in fluorocarbonylsulfenyl chloride [FC(O)SCl] is investigated using the CNDO method. The results confirm the existence of planar eis and trans conformers and the higher stability of the latter, as suggested by previous vibrational results. The valence force constants in FC(O)SCl were also calculated and the values obtained compare favourably with results from a previous normal coordinate calculation and with those of related compounds.

Vibrational spectra and force constants for isotopic species of nitrosyl bromide

1969 ◽  
Vol 30 (1-3) ◽  
pp. 485-497 ◽  
Author(s):  
Jaan Laane ◽  
Llewellyn H. Jones ◽  
Robert R. Ryan ◽  
Larned B. Asprey
Keyword(s):  
Vibrational Spectra ◽  
Force Constants ◽  
Isotopic Species
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