Transverse optical to longitudinal optical splitting and dipole moment derivatives from infrared spectra of thin films of molecular solids

1991 ◽  
Vol 95 (7) ◽  
pp. 2701-2707 ◽  
Author(s):  
Llewellyn H. Jones ◽  
Basil I. Swanson
Keyword(s):  
Thin Films ◽  
Dipole Moment ◽  
Infrared Spectra ◽  
Longitudinal Optical ◽  
Transverse Optical ◽  
Molecular Solids

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

Transport properties and infrared spectra of CuCl thin films

1990 ◽  
Vol 67 (6) ◽  
pp. 3097-3101
Author(s):  
Madhavi Z. Martin ◽  
David K. Shuh ◽  
R. Stanley Williams ◽  
Robert M. Ostrom
Keyword(s):  
Thin Films ◽  
Transport Properties ◽  
Infrared Spectra

TO-LO Splitting in Infrared Spectra of Thin Films

1996 ◽  
Vol 50 (6) ◽  
pp. 759-763 ◽  
Author(s):  
Kiyoshi Yamamoto ◽  
Akio Masui
Keyword(s):  
Thin Films ◽  
Infrared Spectra ◽  
Molecular Orientation ◽  
Peak Position ◽  
Peak Shape ◽  
Surface Phenomena ◽  
Longitudinal Optic ◽  
Transverse Optic ◽  
Optical Behavior ◽  
Optical Calculation

The importance of transverse optic-longitudinal optic (TO-LO) splitting in the interpretation of infrared spectra of thin films is experimentally presented. When infrared spectra are observed at oblique angles of incidence, the shifts in peak position and/or the changes in peak shape may be due to TO-LO splitting. Before one assigns the optical behavior to surface phenomena such as molecular orientation, proper care must be employed. The proposed technique includes optical calculation to extract surface phenomena from TO-LO splitting in the spectra, and it is applied to reflection absorption spectra of perfluoropolyether.

Optical Properties of β-RDX Thin Films Deposited on Gold and Stainless Steel Substrates Calculated from Reflection–Absorption Infrared Spectra

2017 ◽  
Vol 71 (8) ◽  
pp. 1990-2000 ◽  
Author(s):  
José L. Ruiz-Caballero ◽  
Joaquín A. Aparicio-Bolaño ◽  
Amanda M. Figueroa-Navedo ◽  
Leonardo C. Pacheco-Londoño ◽  
Samuel P. Hernandez-Rivera
Keyword(s):  
Thin Films ◽  
Stainless Steel ◽  
Optical Properties ◽  
Infrared Spectra ◽  
Steel Substrates
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