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Topic Area: Chemical Physics
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Displaying records 11 to 20 of 29 records.
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Topic: Chemical Physics
Published: 1/4/2010
Authors: S Sholom, Marc F Desrosiers, V Chumak, N. Luckyannov, S.L. Simon, A Bouville
Abstract: Quality control dosimetry is important to the routine operation of a radiation processing facility. For many applications this dosimetry must be traceable to a national primary standard. After irradiation at an industrial facility, NIST-supplied t ...

12. 34S16O2: High Resolution analysis of the (030), (101), (111), (002) and (201) vibrational states; Determination of equilibrium rotational constants for sulfur dioxide.
Topic: Chemical Physics
Published: 10/12/2009
Authors: Walter Joseph Lafferty, Jean-Marie Flaud
Abstract: High resolution Fourier transform spectra of a sample of sulfur dioxide enriched in 34S (95.3%). have been completely analyzed leading to a large set of assigned lines. The experimental levels derived from this set of transitions have been fit to wi ...

13. Relative Photon-to-Carrier Efficiencies of Alternating Nanolayers of Zinc Phthalocyanine and C60 Multilayer Films Assessed by Time-Resolved Terahertz Spectroscopy
Topic: Chemical Physics
Published: 10/1/2009
Authors: Okan Esenturk, Joseph S Melinger, Paul A. Lane, Edwin J Heilweil
Abstract: Alternating multi-layer and 1:1 blended films of zinc phthalocyanine (ZnPc)and buckminsterfullerene (C60) were investigated as model active layers for solar cells by Time-Resolved Terahertz Spectroscopy (TRTS). Relative photon-to-carrier efficiencies ...

14. Submillimeter Spectrum and Analysis of Vibrational and Hyperfine Coupling Effects in (HI)2
Topic: Chemical Physics
Published: 10/1/2009
Authors: Laurent H. Coudert, Sergei P. Belov, F. Willaert, B. McElmurry, R. Lucchese, John W. Bevan, Jon Torger Hougen
Abstract: Observed rotational-vibrational transitions of HI dimer in the geared bending mode, centered at 511.9 GHz, are reported. This ~50 kHz high resolution spectrum was recorded using a co-axially configured pulsed jet submillimeter spectrometer and the h ...

15. Observation of the C2H2-N2O van der Waals Complex in the Overtone Range Using CW-CRDS
Topic: Chemical Physics
Published: 9/14/2009
Author: Walter Joseph Lafferty
Abstract: A slit nozzle supersonic expansion containing acetylene (0.246l/min) and nitrous oxide (0.355l/min) seeded into Ar (1.26l/min) is investigated using CW cavity ring down spectroscopy, in the 1.5 m range. The C2H2N2O van der Waals comp ...

16. Strategies for Advanced Applications of Permutation-Inversion Groups to the Microwave Spectra of Molecules with Large Amplitude Motions
Topic: Chemical Physics
Published: 5/4/2009
Author: Jon Torger Hougen
Abstract: This article presents permutation-inversion group-theoretical strategies and recipes that will help a high-resolution molecular spectroscopist attempting to use the existing pedagogical literature to carry out their own treatment of the basic symmet ...

17. Conformational Effects on Excitonic Interactions in a Prototypical H-bonded Bichromophore: Bis(2-hydroxyphenyl)methane
Topic: Chemical Physics
Published: 4/30/2009
Authors: David F Plusquellic, Nathan Pillsbury, Christian Mueller, Timothy Zwier
Abstract: Laser induced fluorescence (LIF), single vibronic level fluorescence, UV holeburning, and fluorescence-dip infrared (FDIR) spectroscopy have been carried out on bis-(2-hydroxyphenyl)methane (2HDPM) in order to characterize the ground and first excite ...

18. Analysis and fit of the high-resolution spectrum of the A 1A u X 1A g LIF spectrum of the two-equivalent-top molecule biacetyl
Topic: Chemical Physics
Published: 4/23/2009
Author: Jon Torger Hougen
Abstract: Abstract The laser-induced visible fluorescence excitation spectrum of the à 1Au (S1) - X̃ 1Ag (S0) transition in biacetyl (CH3-C(=O)-C(=O)-CH3) exhibits a long progression in the torsional vibrations of the two equivalent methyl tops in this ...

19. Striped Domains at the Pentacene:C^d60^ Interface
Topic: Chemical Physics
Published: 1/12/2009
Authors: Dan B. Dougherty, W Jin, J Cullen, J Reutt-Robey, Steven W Robey
Abstract: STM observations of the initial growth stages of the first layer of pentacene on a monolayer film of C60 on Ag(111) are presented. Pentacene films nucleate and grow with molecules standing up at the Pentacene:C60 interface similar to the well known ...

20. Variable Temperature Scanning Tunneling Microscopy of Pentacene Monolayer and Bilayer Phases on Ag(111)
Topic: Chemical Physics
Published: 12/25/2008
Authors: Dan B. Dougherty, Jim Wei, William Cullen, Janice Reutt-Robey, Steven W Robey
Abstract: Pentacene deposited onto a Ag(111) surface at 300 K is studied using scanning tunneling microscopy at temperatures of 300 K and 50 K.  At 300 K, ordered pentacene structures nucleate at Ag step edges (<i>Phys. Rev. B</i>  <b>2005 ...

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