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

Structure perfection of single-crystal quartz intended for experiments on finding the electrical dipole moment of neutrons by the crystal diffraction method

2011 ◽  
Vol 56 (3) ◽  
pp. 386-394
Author(s):  
S. Yu. Semenikhin ◽  
Yu. P. Braginets ◽  
V. V. Voronin ◽  
I. A. Kuznetsov ◽  
E. G. Lapin ◽  
...  
Keyword(s):  
Dipole Moment ◽  
Single Crystal ◽  
Diffraction Method ◽  
Electrical Dipole ◽  
Electrical Dipole Moment ◽  
Single Crystal Quartz ◽  
Crystal Quartz

Microwave and Millimeterwave Spectrum of Bromofluoroacetylene (Br—C≡C—F)

1982 ◽  
Vol 37 (12) ◽  
pp. 1449-1453 ◽  
Author(s):  
M. Andolfatto ◽  
B. Kleibömer ◽  
A. Guarnieri
Keyword(s):  
Dipole Moment ◽  
Quadrupole Coupling Constant ◽  
Rotational Constant ◽  
Natural Abundance ◽  
Coupling Constant ◽  
Centrifugal Distortion ◽  
Electrical Dipole ◽  
Electrical Dipole Moment ◽  
Quadrupole Coupling ◽  
Centrifugal Distortion Constants

AbstractThe microwave and millimeterwave spectra of Bromofluoroacetylene 79Br-C ≡ C-F and 81Br-C ≡ C-F in natural abundance have been investigated. The molecule has been found to be linear. The rotational constant, the centrifugal distortion constants Do, the Bromine quadrupole coupling constant and the electrical dipole moment have been determined.Some r0-structures have been calculated assuming different values for the C ≡ C distance.

Creation of ultra-flexible organic piezoelectric film for in vivo power generation

Impact ◽  
2021 ◽  
Vol 2021 (1) ◽  
pp. 36-38
Author(s):  
Kenji Ishida
Keyword(s):  
Physical Chemistry ◽  
Power Generation ◽  
Dipole Moment ◽  
Chemistry Laboratory ◽  
Sensor Technology ◽  
Piezoelectric Film ◽  
Partial Charge ◽  
Electrical Dipole ◽  
Enormous Amount

In the field of chemistry and physics, an electrical dipole of molecule arises from differences of electronegativity of atoms constituting molecules and is quantified by its dipole moment, which is the distance between atoms multiplied by the partial charge. Dipoles hold an enormous amount of promise for a range of different applications in various fields, including sensor technology, semiconductors, nanotechnology and healthcare. Professor Kenji Ishida, who is leading a team based within the Material Physical Chemistry Laboratory at Kobe University in Japan, is focused on working on piezoelectric power generation using the movement of body tissue. Their findings could usher in the next generation of sensors that help patients with a broad range of different conditions.

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