Analysis of the Coriolis interaction between ν6 and ν4 bands of ethylene-cis-d2(cis-C2H2D2) by high-resolution FTIR spectroscopy

2012 ◽  
Vol 272 (1) ◽  
pp. 51-54 ◽  
Author(s):  
T.L. Tan ◽  
M.G. Gabona
Keyword(s):  
High Resolution ◽  
Ftir Spectroscopy ◽  
Coriolis Interaction

High resolution FTIR spectroscopy using a slit jet: sampling the overtone spectrum of 12C2H4

1997 ◽  
Vol 90 (3) ◽  
pp. 381-387 ◽  
Author(s):  
R. GEORGES ◽  
M. BACH ◽  
M. HERMAN
Keyword(s):  
High Resolution ◽  
Ftir Spectroscopy

High Resolution Infrared Spectra of the ν2 and 2ν1 Bands of 14N16O2

1975 ◽  
Vol 53 (19) ◽  
pp. 1902-1926 ◽  
Author(s):  
Aldée Cabana ◽  
Michel Laurin ◽  
Walter J. Lafferty ◽  
Robert L. Sams
Keyword(s):  
High Resolution ◽  
Infrared Spectra ◽  
Ground State ◽  
Equilibrium Structure ◽  
Coriolis Interaction ◽  
Rotational Constants ◽  
Average Structures

The infrared spectra of two B type bands, ν2 and 2ν1, of 14N16O2 have been recorded under high resolution. Ground state combination differences from these bands have been combined with combination differences obtained in previous studies and eight pure rotational microwave transitions to yield improved ground state rotational constants. Upper state constants and band centers for the ν2 and 2ν1 bands are also reported. The 2ν1 band contains internal intensity anomalies believed to arise from a weak Coriolis interaction with the much stronger ν1 + ν3 band. Equilibrium rotational constants have been calculated. The equilibrium structure of the molecule is: rc = 1.1945 ± 0.0005 Å and Θc = 133.85 ± 0.10°. For the sake of comparison, effective, substitution, and average structures are also reported.

Structure of poorly-ordered aluminosilicates

Clay Minerals ◽  
1986 ◽  
Vol 21 (5) ◽  
pp. 879-897 ◽  
Author(s):  
M. A. Wilson ◽  
S. A. McCarthy ◽  
P. M. Fredericks
Keyword(s):  
Electron Microscopy ◽  
Nuclear Magnetic Resonance ◽  
Fourier Transform ◽  
Solid State ◽  
Nmr Spectroscopy ◽  
Magnetic Resonance ◽  
High Resolution ◽  
Ftir Spectroscopy ◽  
Driving Forces ◽  
Repulsive Forces

AbstractThe structure of synthetic aluminosilicates prepared at pH 6 has been investigated by 29Si and 27Al high-resolution solid-state nuclear magnetic resonance (NMR) spectroscopy. Fourier transform infrared (FTIR) spectroscopy and electron microscopy have also been used to characterize the products. The amount of Si and Al in protoimogolite, disordered allophane and other structures has been measured. There is a fair correlation between the intensity of the 349 cm−1 band in the FTIR spectra and the proportion by weight of protoimogolite Si measured by NMR. It is shown that disordered allophanes have similar structures to those proposed by van Reeuwijk and de Villiers (Soil Sci. Soc. Am. Proc. 32 (1968) 238–240), i.e. octahedral Al surrounding a tetrahedral core. Moreover, it is clear that at high Al:Si ratios (⩾1:1), protoimogolite can compete with disordered allophane precursors for aluminum. The driving forces for formation of protoimogolite rather than allophane appear to be long range Al-Al repulsive forces through oxygen.

High-resolution FTIR spectroscopy of HCFC-31 in the 950−1160 cm−1region: rovibrational analysis and resonances in the ν4, ν9and ν5+ν6bands of CH235ClF

2015 ◽  
Vol 113 (23) ◽  
pp. 3683-3690 ◽  
Author(s):  
P. Stoppa ◽  
A. Baldacci ◽  
N. Tasinato ◽  
A. Pietropolli Charmet ◽  
S. Giorgianni ◽  
...  
Keyword(s):  
High Resolution ◽  
Ftir Spectroscopy

High-resolution FTIR spectroscopy of CHClF2 in a supersonic free jet expansion

1988 ◽  
Vol 152 (4-5) ◽  
pp. 275-280 ◽  
Author(s):  
A. Amrein ◽  
D. Luckhaus ◽  
F. Merkt ◽  
M. Quack
Keyword(s):  
High Resolution ◽  
Ftir Spectroscopy ◽  
Free Jet

High-resolution FTIR spectroscopy of chlorodifluoromethane: ν2 and ν7

2002 ◽  
Vol 279 (2-3) ◽  
pp. 239-248 ◽  
Author(s):  
Christopher D. Thompson ◽  
Evan G. Robertson ◽  
Don McNaughton
Keyword(s):  
High Resolution ◽  
Ftir Spectroscopy
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