Infrared spectra of gas‐phase water microparticles: Crystalline, amorphous, and clathrate–hydrate clusters of H2O, D2O, and H2O/D2O

1989 ◽  
Vol 91 (9) ◽  
pp. 5850-5851 ◽  
Author(s):  
J. Paul Devlin
Keyword(s):  
Gas Phase ◽  
Infrared Spectra ◽  
Clathrate Hydrate ◽  
Phase Water

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

scholarly journals IR photofragmentation of the phenyl cation: spectroscopy and fragmentation pathways

2021 ◽  
Vol 23 (7) ◽  
pp. 4334-4343
Author(s):  
Sandra D. Wiersma ◽  
Alessandra Candian ◽  
Joost M. Bakker ◽  
Giel Berden ◽  
John R. Eyler ◽  
...  
Keyword(s):  
Gas Phase ◽  
Spectral Range ◽  
Infrared Spectra ◽  
Fragmentation Pathways ◽  
Phenyl Cation

We present the gas-phase infrared spectra of the phenyl cation, phenylium, in its perprotio (C6H5+) and perdeutero (C6D5+) forms, in the 260–1925 cm−1 (5.2–38 μm) spectral range, and investigate the observed photofragmentation.

Gas phase infrared spectra and corresponding DFT calculations of , -diphenylpolyenes

2010 ◽  
Vol 259 (1) ◽  
pp. 11-15 ◽  
Author(s):  
Lars Biemann ◽  
Michaela Braun ◽  
Karl Kleinermanns
Keyword(s):  
Dft Calculations ◽  
Gas Phase ◽  
Infrared Spectra

scholarly journals Infrared Spectra of Gas-Phase V+−(Benzene) and V+−(Benzene)2Complexes

2002 ◽  
Vol 124 (8) ◽  
pp. 1562-1563 ◽  
Author(s):  
D. van Heijnsbergen ◽  
G. von Helden ◽  
G. Meijer ◽  
P. Maitre ◽  
M. A. Duncan
Keyword(s):  
Gas Phase ◽  
Infrared Spectra

Infrared spectra of homogeneous and heterogeneous proton-bound dimers in the gas phase

2005 ◽  
Vol 7 (14) ◽  
pp. 2747 ◽  
Author(s):  
Travis D. Fridgen ◽  
Luke MacAleese ◽  
Philippe Maitre ◽  
Terry B. McMahon ◽  
Pierre Boissel ◽  
...  
Keyword(s):  
Gas Phase ◽  
Infrared Spectra

scholarly journals THE USE OF INFRARED SPECTROPHOTOMETRY FOR THE ESTIMATION OF SMALL QUANTITIES OF SOME HALOGENATED HYDROCARBONS

1953 ◽  
Vol 31 (4) ◽  
pp. 328-337 ◽  
Author(s):  
L. Breitman ◽  
E. W. R. Steacie
Keyword(s):  
Quantitative Analysis ◽  
Carbon Tetrachloride ◽  
Gas Phase ◽  
Infrared Spectra ◽  
Methyl Chloride ◽  
Ternary Mixtures ◽  
Halogenated Hydrocarbons ◽  
Infrared Spectrophotometry ◽  
Absorption Bands ◽  
Binary And Ternary Mixtures

The infrared spectra of chloral, carbon tetrachloride, and chloroform have been determined between 1500 and 650 cm.−1 over a range of pressures in the gas phase. Absorption bands suitable for the quantitative analysis of binary and ternary mixtures of the components have been selected and their peak intensities shown to obey Beer's Law over the range of pressures studied. Ternary mixtures have been analyzed from the spectra with an accuracy of about 20%.The spectra of dichloromethane and methyl chloride have also been measured under comparable conditions.

Chemical Modification of the Porous Silicon Surface

1994 ◽  
Vol 358 ◽  
Author(s):  
Eric J. Lee ◽  
James S. Ha ◽  
Michael J. Sailor
Keyword(s):  
Porous Silicon ◽  
Chemical Modification ◽  
Formic Acid ◽  
Gas Phase ◽  
Silicon Surface ◽  
Chemical Vapor ◽  
Luminescence Quenching ◽  
Porous Silicon Surface ◽  
Phase Water ◽  
Surface Modified

ABSTRACTThe porous silicon (PS) surface is derivatized with ethanol, triethylsilanol and formic acid as well as oxidized with water. The two reactions used to prepare these surfaces are discussed, and FTIR spectra of the products are presented. Surface-modified PS retains 10-40% of its original photoluminescence. PS-derivatives display reversible luminescence quenching by gas phase water, ethanol, acetonitrile and benzene. The extent of quenching varies with different PS-derivatives depending on the interaction of the chemical vapor with the modified PS surfaces.

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