Pentacoordinated molecules. XVI. Molecular structure of tert-butyltetrafluorophosphorane. Infrared spectrum, Raman spectrum, and gas-phase dipole moment

1971 ◽  
Vol 10 (6) ◽  
pp. 1109-1115 ◽  
Author(s):  
Robert R. Holmes ◽  
Manfred Fild
Keyword(s):  
Molecular Structure ◽  
Dipole Moment ◽  
Raman Spectrum ◽  
Infrared Spectrum ◽  
Gas Phase

The Gas Phase Raman Spectrum and Molecular Structure of Dichlorodibromotellurium(IV) TeCl2Br2. Novel Penta- and Hexa-co-ordinate Mixed Halide Anions of Tellurium(IV). Synthesis and infrared and Raman Spectra of [Et4N]TeCl2Br3 and [Et4N]2TeCl2Br4

1971 ◽  
Vol 49 (5) ◽  
pp. 704-708 ◽  
Author(s):  
G. A. Ozin ◽  
A. Vander Voet
Keyword(s):  
Molecular Structure ◽  
Raman Spectrum ◽  
Gas Phase ◽  
Raman Spectra ◽  
Infrared And Raman Spectra ◽  
Synthetic Route ◽  
Halide Anions ◽  
Phase Data ◽  
First Time

The Raman spectrum of gaseous TeCl2Br2 at 310 °C is reported for the first time. The gas phase data is consistent with the presence of a monomolecular species haying C1 symmetry. A synthetic route for the preparation of penta- and hexa-co-ordinate mixed halide anions of tellurium(IV), under anhydrous conditions, is described for the first time. The infrared and Raman spectra for solid [Et4N]TeCl2Br3 and [Et4N]2TeCl2Br4 are reported. A stereochemistry based on a square pyramid, is favored for [Et4N]-TeCl2Br3. In the case of [Et4N]2TeCl2Br4 the vibrational data strongly suggests the presence of a cis-octahedral anion, having C2v symmetry.

GAS PHASE RAMAN SPECTRUM OF TCNQ AND PRESSURE DEPENDENCE OF THE MODES IN CRYSTALS OF TNCQ°

1981 ◽  
Vol 42 (C6) ◽  
pp. C6-323-C6-325
Author(s):  
C. Carlone ◽  
N. K. Hota ◽  
H. J. Stolz ◽  
M. Elbert ◽  
H. Kuzmany ◽  
...  
Keyword(s):  
Raman Spectrum ◽  
Gas Phase ◽  
Pressure Dependence

scholarly journals Preparation and the Microwave and Infrared Spectra of Vinyl Ketene

1979 ◽  
Vol 34 (11) ◽  
pp. 1269-1274 ◽  
Author(s):  
Erik Bjarnov
Keyword(s):  
Dipole Moment ◽  
Gas Phase ◽  
Infrared Spectra ◽  
Room Temperature ◽  
Normal Modes ◽  
Spectroscopic Constants ◽  
Electrical Dipole ◽  
Electrical Dipole Moment ◽  
Vacuum Pyrolysis ◽  
Modes Of Vibration

Vinyl ketene (1,3-butadiene-1-one) has been synthesized by vacuum pyrolysis of 3-butenoic 2-butenoic anhydride. The microwave and infrared spectra of vinyl ketene in the gas phase at room temperature have been studied. The trans-rotamer has been identified, and the spectroscopic constants were found to be Ã= 39571(48) MHz, B̃ = 2392.9252(28) MHz, C̃ = 2256.0089(28) MHz, ⊿j = 0.414(31) kHz, and ⊿JK = - 34.694(92) kHz. The electrical dipole moment was found to be 0.987(23) D with μa = 0.865(14) D and μb = 0.475(41) D. A tentative assignment has been made for 17 of the 21 normal modes of vibration

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