The Raman Spectra of Phosphorus Methyl and Arsenic Methyl and the Force Constants of the Methyl Compounds of the Fifth Group Elements

1940 ◽  
Vol 8 (5) ◽  
pp. 366-368 ◽  
Author(s):  
E. J. Rosenbaum ◽  
Dorothy J. Rubin ◽  
C. Roger Sandberg
Keyword(s):  
Raman Spectra ◽  
Force Constants

Vibrational spectra of aquadioxotetra; peroxodivanadates(V) M2[V2O2(O2)4(H2O)]·xH2O (M = N(CH3)4, Cs)

1990 ◽  
Vol 55 (6) ◽  
pp. 1485-1490 ◽  
Author(s):  
Peter Schwendt ◽  
Milan Sýkora
Keyword(s):  
Raman Spectra ◽  
Vibrational Spectra ◽  
Normal Coordinate Analysis ◽  
Force Constants ◽  
Infrared And Raman Spectra ◽  
Empirical Correlations ◽  
Normal Coordinate ◽  
Bond Lengths ◽  
Stretching Vibrations

The infrared and Raman spectra of M2[V2O2(O2)4(H2O)]·xH2O and M2[V2O2(O2)4(D2O)]·xD2O (M = N(CH3)4, Cs) were measured. In the region of the vanadium-oxygen stretching vibrations, the spectra were interpreted based on normal coordinate analysis, employing empirical correlations between the bond lengths and force constants.

RAMAN SPECTRA OF TITANIUM DI-, TRI-, AND TETRA-CHLORIDES

2001 ◽  
Vol 15 (28n30) ◽  
pp. 3865-3868 ◽  
Author(s):  
H. MIYAOKA ◽  
T. KUZE ◽  
H. SANO ◽  
H. MORI ◽  
G. MIZUTANI ◽  
...  
Keyword(s):  
Force Constant ◽  
Raman Spectra ◽  
Normal Mode ◽  
Raman Band ◽  
Normal Mode Analysis ◽  
Force Constants ◽  
Mode Analysis ◽  
Oxidation Number

We have obtained the Raman spectra of TiCl n (n= 2, 3, and 4). Assignments of the observed Raman bands were made by a normal mode analysis. The force constants were determined from the observed Raman band frequencies. We have found that the Ti-Cl stretching force constant increases as the oxidation number of the Ti species increases.

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).

Raman spectra and force constants for Cl3+(SbF6)−

1991 ◽  
Vol 47 (12) ◽  
pp. 1673-1676 ◽  
Author(s):  
R. Minkwitz ◽  
J. Nowicki ◽  
H. Härtner ◽  
W. Sawodny
Keyword(s):  
Raman Spectra ◽  
Force Constants

The Vibrational Spectrum and Urey-Bradley Force Constants of the Trifluoromethyltrifluoroborate(1-) Anion

1973 ◽  
Vol 27 (3) ◽  
pp. 209-213 ◽  
Author(s):  
John F. Jackovitz ◽  
Charles E. Falletta ◽  
James C. Carter
Keyword(s):  
Potential Energy ◽  
Vibrational Spectrum ◽  
Energy Distribution ◽  
Force Field ◽  
Raman Spectra ◽  
Normal Modes ◽  
Force Constants ◽  
Potential Energy Distribution ◽  
Infrared And Raman Spectra ◽  
Normal Coordinate

Infrared and Raman spectra for (K+) (CF3BF3−) have been obtained from 4000 to 50 cm−1. Spectral assignments were made on the basis of C3v symmetry using both 10B and 11B compounds. In addition, a normal coordinate analysis was performed to obtain the potential energy distribution of the normal modes. A Urey-Bradley type force field was used, and force constants obtained for the CF3 and BF3 groupings were compared to those in C2F6 and BF4−.

Co-C force constants from resonance Raman spectra of alkylcobalamins: insensitivity to dimethylbenzylimidazole coordination

1998 ◽  
Vol 270 (1-2) ◽  
pp. 392-398 ◽  
Author(s):  
Shoulian Dong ◽  
Raghavakaimal Padmakumar ◽  
Ruma Banerjee ◽  
Thomas G. Spiro
Keyword(s):  
Raman Spectra ◽  
Resonance Raman ◽  
Force Constants ◽  
Resonance Raman Spectra

Raman Spectra of AsF5 and VF5 and Force Constants for PF5, AsF5, and VF5

1970 ◽  
Vol 53 (7) ◽  
pp. 2559-2564 ◽  
Author(s):  
H. Selig ◽  
J. H. Holloway ◽  
J. Tyson ◽  
Howard H. Claassen
Keyword(s):  
Raman Spectra ◽  
Force Constants

The Raman Spectra of some Tricoordinate Halogenocadmate(II) Anions in the Solid State

1975 ◽  
Vol 53 (22) ◽  
pp. 3487-3491 ◽  
Author(s):  
J. Guillermo Contreras ◽  
Dennis G. Tuck
Keyword(s):  
Solid State ◽  
Raman Spectra ◽  
Force Constants ◽  
State Force

The Raman spectra of the solids n-Pr4N[CdX3], where X is Cl, Br, or I, show that trihalogenocadmate anions possess C2v symmetry in the solid state. Force constants have been calculated using the Urey–Bradley approximation and are correlated with the values reported for other tricoordinate species.

Schwingungsspektren der Schwefelringe S8, 34S8, S12 und S12 · CS2 sowie thermodynamische Funktionen der Moleküle Sn (n = 2 — 12) / Vibrational Spectra of the Sulfur Rings S8, 34S8, S12 and S12 · CS2 and Thermodynamic Functions of the Molecules Sn (n = 2…12)

1978 ◽  
Vol 33 (8) ◽  
pp. 951-958 ◽  
Author(s):  
Ralf Steudel ◽  
Hans-Joachim Mäusle
Keyword(s):  
Force Field ◽  
Raman Spectra ◽  
Thermodynamic Functions ◽  
Vibrational Spectra ◽  
Molecular Size ◽  
Heat Capacities ◽  
Force Constants ◽  
Sulfur Vapor ◽  
Sulfur Species

Raman spectra of S8, 34S8, S12, and S12 · CS2 are reported and force constants have been calculated for S8 and S12 using a modified Urey-Bradley force field. The fundamental vibrations and molecular geometries of S8 and S12 have been used for the calculation of thermodynamic functions. The standard entropies, S0T, as well as the molar heat capacities, Cp, of sulfur species Sn are shown to depend linearly on the molecular size, n, as follows (in J · mole-1 · K-1):S0298 = 35.16n + 147.0, Cp(298 K) = 21.00 n - 11.7.By interpolation entropies for S9, S10 and S11 have been obtained, and these data are used to show that the concentrations of sulfur rings larger than S8 in sulfur vapor must be negligibly small.

scholarly journals The Raman spectra of Bis(hexamethylenetetramine)-iodine(I) and -bromine(I) perchlorates

1977 ◽  
Vol 30 (5) ◽  
pp. 1123 ◽  
Author(s):  
GA Bowmaker ◽  
RJ Knappstein
Keyword(s):  
Raman Spectra ◽  
Halogen Bond ◽  
Interaction Force ◽  
Force Constants ◽  
Bond Stretching

The low-wavenumber (<200 cm-1) Raman spectra of bis(hexamethylenetetramine)iodine(I) perchlorate and bis(hexamethylenetetramine)bromine(I) perchlorate have been measured, and the nitrogen-halogen symmetric stretching mode of the cation has been assigned for each compound. The nitrogen-halogen bond stretching and interaction force constants for the cations have been calculated, and these are found to be very similar to those for the corresponding bis(pyridine)halogen(I) cations.

Sign in / Sign up

Export Citation Format

Share Document