Organosilicon compounds. XXXVII. C-H stretching vibrations of phenyl groups in the infrared spectra of phenylsilanes C6H5SiXYZ and monosubstituted derivatives of benzene C6H5CXYZ

1964 ◽  
Vol 29 (12) ◽  
pp. 2935-2949 ◽  
Author(s):  
J. Knížek ◽  
V. Chvalovský ◽  
M. Horák
Keyword(s):  
Infrared Spectra ◽  
Organosilicon Compounds ◽  
Stretching Vibrations ◽  
Derivatives Of

Vibrational spectra of phosphorus ligand derivatives of some alkyltricarbonyl-π-cyclopentadienylmolybdenum compounds

1970 ◽  
Vol 48 (19) ◽  
pp. 3089-3094 ◽  
Author(s):  
P. J. Craig
Keyword(s):  
Infrared Spectra ◽  
Vibrational Spectra ◽  
Carbonyl Compounds ◽  
Metal Carbonyl ◽  
Metal Ring ◽  
Complex Metal ◽  
Stretching Vibrations ◽  
Phosphine Derivatives ◽  
Derivatives Of ◽  
Complementary Study

Raman and infrared spectra of a series of complexes RCOMo(CO)2[L]π-C5H5 (R = Me, Et, σ-C3H5, CH2Ph; L = PPh3, P(OCH2)3CCH3) and of ClMo(CO)2[PPh3]π-C5H5 and HW(CO)2[P(OPh)3]π-C5H5 have been recorded. In this complementary study of complex metal carbonyl compounds, assignments are suggested for metal–carbon–oxygen deformation, metal–carbon stretching, metal–ring, and metal–phosphorus stretching vibrations. It is thought that the latter occur in the range 240–200 cm−1, frequencies for phosphite complexes being lower than for the corresponding phosphine derivatives.

Organobismuth Compounds. III. Preparation and Infrared Spectra of Triphenylbismuth(V) Derivatives of Dibasic Acids

1971 ◽  
Vol 49 (15) ◽  
pp. 2529-2532 ◽  
Author(s):  
R. G. Goel ◽  
H. S. Prasad
Keyword(s):  
Solid State ◽  
Infrared Spectra ◽  
Frequency Region ◽  
The Other ◽  
Stretching Vibrations ◽  
Derivatives Of ◽  
Polymeric Structures

Triphenylbismuth carbonate, oxalate, sulfate, selenate, and chromate have been prepared and their solid state infrared (i.r.) spectra have been studied in the frequency region 4000 to 200 cm−1. The i.r. spectroscopic results indicate that, like the corresponding trimethyl- and triphenylantimony(V) derivatives, these compounds also have non-ionic polymeric structures containing bridging anion groups and five co-ordinate bismuth. The i.r. frequencies associated with the bismuth–anion stretching vibrations appear to occur at 300 cm−1 for the carbonate and below 300 cm−1 for the other compounds.

Infrared spectra and substituent effects in 2-(3-, and 4-substituted phenylmethylene)-1,3-cycloheptanediones

1983 ◽  
Vol 48 (2) ◽  
pp. 586-595 ◽  
Author(s):  
Alexander Perjéssy ◽  
Pavol Hrnčiar ◽  
Ján Šraga
Keyword(s):  
Substituent Effects ◽  
Phenyl Group ◽  
Wave Number ◽  
Vibrational Coupling ◽  
Wave Numbers ◽  
Stretching Vibration ◽  
Stretching Vibrations ◽  
The Relationship ◽  
Derivatives Of ◽  
Effect Of Structure

The wave numbers of the fundamental C=O and C=C stretching vibrations, as well as that of the first overtone of C=O stretching vibration of 2-(3-, and 4-substituted phenylmethylene)-1,3-cycloheptanediones and 1,3-cycloheptanedione were measured in tetrachloromethane and chloroform. The spectral data were correlated with σ+ constants of substituents attached to phenyl group and with wave number shifts of the C=O stretching vibration of substituted acetophenones. The slope of the linear dependence ν vs ν+ of the C=C stretching vibration of the ethylenic group was found to be more than two times higher than that of the analogous correlation of the C=O stretching vibration. Positive values of anharmonicity for asymmetric C=O stretching vibration can be considered as an evidence of the vibrational coupling in a cyclic 1,3-dicarbonyl system similarly, as with derivatives of 1,3-indanedione. The relationship between the wave numbers of the symmetric and asymmetric C=O stretching vibrations indicates that the effect of structure upon both vibrations is symmetric. The vibrational coupling in 1,3-cycloheptanediones and the application of Seth-Paul-Van-Duyse equation is discussed in relation to analogous results obtained for other cyclic 1,3-dicarbonyl compounds.

Infrared Spectra of Some Chloro Derivatives of s-Triazine

1966 ◽  
Vol 20 (3) ◽  
pp. 159-160 ◽  
Author(s):  
T. S. Herman
Keyword(s):  
Infrared Spectra ◽  
Triazine Ring ◽  
Chlorine Atoms ◽  
Vibrational Assignments ◽  
Fundamental Frequencies ◽  
Bending Mode ◽  
Chloro Derivatives ◽  
Derivatives Of

The effects of chlorine atoms on the fundamental frequencies of the s-triazine ring are discussed and the vibrational assignments in the region 1600–700 cm−1 are extended. The variation in the position of the C3N3-ring bending mode in the region near 810 cm−1 is discussed.

Infrared spectra of some derivatives of unsaturated phosphinic acids

1961 ◽  
Vol 10 (1) ◽  
pp. 62-66 ◽  
Author(s):  
N. A. Slovokhotova ◽  
K. N. Anisimov ◽  
G. M. Kunitskaya ◽  
N. E. Kolobova
Keyword(s):  
Infrared Spectra ◽  
Phosphinic Acids ◽  
Derivatives Of

Infrared Spectra in Identification of Derivatives of Cyclopropane

1952 ◽  
Vol 24 (4) ◽  
pp. 623-625 ◽  
Author(s):  
S. E. Wiberley ◽  
S. C. Bunce
Keyword(s):  
Infrared Spectra ◽  
Derivatives Of
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