THE VIBRATIONAL SPECTRA OF SULPHURYL AND THIONYL HALIDES

1961 ◽  
Vol 39 (11) ◽  
pp. 2171-2178 ◽  
Author(s):  
R. J. Gillespie ◽  
E. A. Robinson
Keyword(s):  
Raman Spectrum ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Normal Modes ◽  
Infrared And Raman Spectra ◽  
Fundamental Frequencies

New assignments are proposed for the fundamental frequencies of SOF2, SOCl2, SO2Cl2, SO2F2, and SO2FBr, based on new measurements of the Raman spectrum of SO2Cl2 and previous measurements of the infrared and Raman spectra of these molecules. The fundamental frequencies of these molecules are found to be related to each other and to those of similar molecules when the normal modes are described in terms of characteristic vibrations of the SO, SO2, S(Hal), and S(Hal)2 groups.

scholarly journals The Vibrational Spectra of Silane and Germane Derivatives. Part IV. The Infrared and Raman Spectra of the Iodo(methyl)germanes

1971 ◽  
Vol 49 (18) ◽  
pp. 2931-2936 ◽  
Author(s):  
J. W. Anderson ◽  
G. K. Barker ◽  
J. E. Drake And ◽  
R. T. Hemmings
Keyword(s):  
Force Field ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
A Priori ◽  
Normal Coordinate Analysis ◽  
Infrared And Raman Spectra ◽  
Normal Coordinate ◽  
Valence Force ◽  
Valence Force Field ◽  
Fundamental Frequencies

The infrared and Raman spectra of the series of iodo(methyl)germanes, CH3GeI3, (CH3)2GeI2, and (CH3)3GeI have been recorded. A normal coordinate analysis based on a modified valence force field confirms the a priori assignments for all of the fundamental frequencies except the torsional modes.

Far Infrared and Raman Spectra of (CH3)3SiCo(CO)4

1971 ◽  
Vol 25 (2) ◽  
pp. 182-186 ◽  
Author(s):  
J. R. Durig ◽  
S. J. Meischen ◽  
S. E. Hannum ◽  
R. R. Hitch ◽  
S. K. Gondal ◽  
...  
Keyword(s):  
Raman Spectrum ◽  
Solid State ◽  
Raman Spectra ◽  
Normal Modes ◽  
Far Infrared ◽  
Static Field ◽  
Infrared And Raman Spectra ◽  
Vibrational Assignment ◽  
Degenerate Modes ◽  
Ir And Raman

The ir spectra of (CH3)3SiCo(CO)4 in the gaseous (4000–250 cm−1) and solid (4000–33 cm−1) phases have been recorded. The Raman spectrum has also been recorded for the solid state. To aid in the assignment, the ir and Raman spectra were recorded of solid (CH3)3SiH. The vibrational assignment for most of the 60 normal modes has been given on the basis of the fundamental vibrations of the –Si(CH3)3 and –Co(CO)4 moities. The static field was sufficiently strong to split the degenerate modes but the correlation field was so weak that no definite splitting of the symmetric modes was detected.

Vibrational spectra of ammonium ammine-oxo-diperoxovanadate

1982 ◽  
Vol 47 (6) ◽  
pp. 1549-1555 ◽  
Author(s):  
Peter Schwendt ◽  
Miloslav Pisárčik
Keyword(s):  
Raman Spectrum ◽  
Bond Length ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Normal Coordinate Analysis ◽  
Wave Number ◽  
Infrared And Raman Spectra ◽  
Normal Coordinate ◽  
Mass Model ◽  
Vibrational Coupling

Infrared and Raman spectra of solid NH4[VO(O2)2NH3], ND4[VO(O2)2ND3], 14/15NH4[VO(O2)214/15NH3] (about 50% 15N) and Raman spectrum of solution of NH4[VO(O2)2NH3] have been measured. Interpretation of the spectra was complemented by normal coordinate analysis in the approximation of point mass model (NH3). The results have shown that there exists coupling of vibrations of two V(O2) groups, which enables an explanation of differences between spectra of the mono- and diperoxo complexes. The vibrational coupling of VO and OO bonds within one V(O2) group probably causes small sensitivity of wave number of v(O-O) band to changes of d(O-O) bond length.

Vibrational Spectra and Structure of Organophosphorous Compounds. XIX. Infrared and Raman Spectra and Structure of Methoxydifluorophosphine-D0 and -d3

1980 ◽  
Vol 34 (1) ◽  
pp. 65-71 ◽  
Author(s):  
J. R. Durig ◽  
B. J. Streusand
Keyword(s):  
Raman Spectra ◽  
Vibrational Spectra ◽  
Normal Modes ◽  
Isotopic Substitution ◽  
Infrared And Raman Spectra ◽  
Trans Conformation ◽  
Frequency Shifts ◽  
Solid States ◽  
A Value ◽  
Organophosphorous Compounds

The infrared spectra of CH3OPF2 and CD3OPF2 in the gaseous and solid states and the Raman spectra of the gaseous, liquid, and solid states have been recorded from 3200 to 40 cm−1. Seventeen of the 18 normal modes have been assigned through the use of group frequencies, depolarization values, band contours, and frequency shifts with isotopic substitution. The V3 term of the asymmetric potential function was calculated to have a value of 3.41 kcal/mol from the fundamental and first overtone of the methoxy torsion. The vibrational spectra support a trans conformation for this molecule.

Vibrational spectra of mercury(II) and methylmercury(II) thiocyanates

1969 ◽  
Vol 22 (10) ◽  
pp. 2117 ◽  
Author(s):  
RPJ Cooney ◽  
JR Hall
Keyword(s):  
Raman Spectrum ◽  
Solid State ◽  
Raman Spectra ◽  
Infrared Spectra ◽  
Vibrational Spectra ◽  
Unit Cell ◽  
Infrared And Raman Spectra

The Raman spectra of Hg(SCN)2 in both the solid state and in solution have been recorded and interpreted in conjunction with the infrared spectra. For the solid state the Raman shifts for Hg-S stretching, S-C stretching, and C-N stretching are 270, 721, and 2112 cm-1 respectively. In diglyme solution the corresponding values are 278, 692, and 2139 cm- 1. The infrared and Raman spectra of CH3HgSCN in the solid state do not contain any coincidences which may indicate that the unit cell is centrosymmetric. The Raman spectrum of CH3HgSCN in CH3OH solution shows strong, sharp, polarized lines at 283, 540, 1186, and 2138 cm-1 which are attributed to Hg-S stretching, Hg-C stretching, CH3 deformation, and C-N stretching modes respectively.

THE VIBRATIONAL SPECTRA OF CH2=CHCl AND CH2=CDCl

1955 ◽  
Vol 33 (12) ◽  
pp. 1792-1797 ◽  
Author(s):  
J. C. Evans ◽  
H. J. Bernstein
Keyword(s):  
Raman Spectrum ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Infrared And Raman Spectra ◽  
Depolarization Ratios

The infrared and Raman spectra of CH2=CDCl and the Raman spectrum of CH2=CHCl have been obtained and depolarization ratios of the Raman bands have been measured. The spectra of the two molecules have been correlated.

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.

Synthesis, crystal and molecular structure, and vibrational spectra of the complex (COOH)2•2H2O•18-crown-6

1986 ◽  
Vol 64 (1) ◽  
pp. 142-147 ◽  
Author(s):  
Suzanne Deguire ◽  
François Brisse ◽  
Jacques Ouellet ◽  
Rodrigue Savoie
Keyword(s):  
Molecular Structure ◽  
Hydrogen Bonds ◽  
Oxalic Acid ◽  
Raman Spectra ◽  
Vibrational Spectra ◽  
Crystal And Molecular Structure ◽  
Unit Cell ◽  
Infrared And Raman Spectra ◽  
O 18 ◽  
Stoichiometric Complex

A stoichiometric complex of formula (COOH)2•2H2O•18-crown-6 has been obtained from oxalic acid and the macrocyclic polyether 18-crown-6. The crystals of the complex have a monoclinic unit cell and belong to the P21/c space group. The components in the adduct are linked through hydrogen bonds in a polymer-like fashion: -crown–H2O–HOOCCOOH–OH2–crown–, where the oxalic acid molecules are present in two distinct disordered orientations. The infrared and Raman spectra of the complex are also reported and interpreted.

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