Now showing items 1-10 of 14
The Microwave Spectrum and Structure of the Argon-Acetaldehyde van der Waals Complex
(Elsevier, 1994-08)
The argon-acetaldehyde van der Waals dimer was studied by Fourier transform microwave spectroscopy. Two tunneling motions were observed in the spectrum, an inversion through a planar configuration and methyl interal rotation. ...
The microwave spectrum and structure of the furan [middle dot] sulfur dioxide complex
(Elsevier, 1992)
The microwave spectrum of furan [middle dot] sulfur dioxide complex has been observed with a pulsed molecular beam Fourier transform microwave spectrometer. Transitions having a-, b-, and c-dipole selection rules were all ...
Vibrational spectroscopic studies of -alternating valine peptides
(Elsevier, 1992-04-24)
Raman and infrared spectra of Boc-(Val--Val)n-OMe [(-Val)n], with n = 4, 6 and 8, were obtained in crystalline and solution states. Based on predictions from normal-mode calculations of a number of relevant single- and ...
Normal-mode analysis of infrared and Raman spectra of poly(vinyl fluoride)
(Elsevier, 1992-03-02)
Infrared and Raman spectra of samples of poly(vinyl fluoride) (PVF) have been recorded. The vibrational spectra have been analyzed by means of normal-mode calculations. A force field was derived by using 2-fluorobutane as ...
Rapid computation of the radiative absorption rate in the v3 mode of mesospheric and lower thermospheric ozone
(Elsevier, 1991-11)
We have developed an algorithm to calculate rapidly and accurately the rate (photons-molecule-1-sec-1) at which the ozone v3 fundamental band absorbs i.r. radiation in the terrestrial upper mesosphere and lower thermosphere. ...
The design and performance of an ion trap storage--reflectron time-of-flight mass spectrometer
(Elsevier, 1994-02-24)
The design and performance of an ion trap storage--reflectron time-of-flight mass spectrometer (IT--RETOF MS) combination have been explored for detection of ions generated from both internal and external ionization sources. ...
Selective resonance enhanced multiphoton ionization of aromatic polymers in supersonic beam mass spectrometry
(Elsevier, 1991-07-15)
Various polymers have been studied using a pulsed laser evaporation method for volatilizing these species and entraining them into a supersonic jet expansion followed by resonance enhanced multiphoton ionization (REMPI) ...
Polarized Raman spectra of oriented films of Α-helical poly( L -alanine) and its N -deuterated analogue
(John Wiley & Sons, Ltd., 1998-01)
Polarized Raman spectra were obtained on well oriented films of Α-helical poly( L -alanine) (Α-PLA) and its N -deuterated analogue in order to obtain definitive assignments of the E 2 -species modes. Such assignments ...
Rotational energy dispersions: Analytic descriptions
(Elsevier, 1992-09)
Closed-form analytic expressions parametric in the centrifugal displacement are presented for the dependence of the classical rotational energy of a harmonic oscillator (HO), Morse oscillator (MO), and Lennard-Jones 6-12 ...
Electric Dipole Moments of Rare Gas-Carbonyl Sulfide van der Waals Complexes
(Elsevier, 1993-08)
The [mu]a and [mu]b electric dipole moment components of the Ne-OCS, Ar-OCS, and Kr-OCS van der Waals complexes were determined using Fourier transform microwave spectroscopy. The accuracy of these results was evaluated ...