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Topic Area: Chemical Physics

Displaying records 21 to 29.
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21. Shear Thinning Near the Critical Point of Xenon
Topic: Chemical Physics
Published: 4/17/2008
Authors: Robert F Berg, Michael R Moldover, M Yao, G A Zimmerli
Abstract: We measured shear thinning, a viscosity decrease ordinarily associated with complex liquids, near the critical point of xenon. The data span the range of reduced shear rates: 0.001 < {gamma}{tau} < 700, where {gamma}{tau} is the shear rate scal ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830987

22. Ultrafast Chelation Dynamics of a Manganese Tricarbonyl Derivative in Solid Polyacrylonitrile
Topic: Chemical Physics
Published: 1/1/2007
Authors: Tung T. To, Edwin J Heilweil
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=101777

23. Time-Resolved Infrared Absorption Study of Cyclopentadienyl Manganese Tricarbonyl Derivatives With Pendant Sulfides in Acetonitrile
Topic: Chemical Physics
Published: 7/18/2006
Authors: Tung T. To, Edwin J Heilweil, T J Burkey
Abstract: The chelation dynamics of [5-C5H4C(O)R]Mn(CO)3 complexes 1 (R = CH2(SCH3)3), 2 (R = CH(SCH3)2), and 3 (R = C(SCH3)3) in room temperature acetonitrile solution have been investigated on the picosecond timescale by UV-pump IR-probe transient absorption ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841001

24. High resolution analysis of the 26 and 2 9 9 bands of propane
Topic: Chemical Physics
Published: 5/8/2006
Authors: Jean-Marie Flaud, Walter Joseph Lafferty, F. Kwabia Tchana
Abstract: Using high-resolution Fourier transform spectra of propane recorded in the 13.4 μm (resolution of 0.002 cm-1) and in the 27.4 μm (resolution 0.0011 cm-1) spectral regions, it was possible to perform a thorough assignment of both the ν ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903598

25. Ultrafast Transient THz Spectroscopy of Azobenzene
Topic: Chemical Physics
Published: 1/1/2005
Authors: Okan Esenturk, Edwin J Heilweil
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=104459

26. Hot-Electron Femtochemistry at Surfaces: On the Role of Multiple Electron Processes in Desorption
Topic: Chemical Physics
Published: 1/1/2000
Author: John William Gadzuk
Abstract: Aspects of molecular processes at surfaces due to sub-ps laser pulses of visible light are discussed here. Within the limits of the standard two-temperature model describing the temporatl evolution of fs laser-excited substrate electrons, a theoreti ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=831120

27. Control of Condensed Phase Molecular Excitation With Intense Infrared and Visible Chipped Pulses
Topic: Chemical Physics
Published: 10/21/1998
Authors: V D Kleiman, Edwin J Heilweil, D McMorrow, Joseph S Melinger
Abstract: Chirped ultrafast laser pulses in the mid-Infrared and visible are used to experimentally control population transfer in condensed-phase systems and molecules.
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=841321

28. Infrared and far-infrared characterization of radome materials for accurate determination of microwave permittivity
Topic: Chemical Physics
Published: Date unknown
Authors: Karen M. Siegrist, David F Plusquellic, Michael E. Thomas
Abstract: Weak multiphonon bands dominate absorption at the lower absorption band edge which lies in the THz and submillimeter spectral regions for radome materials of interest. The strongly temperature dependent behavior of these bands extends into the microw ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=905774

29. Ultraviolet Photoemission Spectra of Para-Phenylene-Ethynylene Thiols Chemisorbed on Gold
Topic: Chemical Physics
Published: 1/1/0008
Authors: Christopher D Zangmeister, Roger D van Zee, Steven W Robey, N E Gruhn, Yuxing Yao, J M Tour
Abstract: Photoemission spectra of para-phenylene-ethynylene thiols chemisorbed on gold have been measured. Four compounds were studied: 4,4'-bis(phenylethynyl)-benzenethiol, 4 (phenylethynyl)benzenethiol, 4-ethynylbenzenethiol, and benzenethiol. The spectra w ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830991



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