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You searched on: Author: edwin heilweil

Displaying records 31 to 40 of 103 records.
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31. Infrared emission imaging as a tool for characterization of hydrogen storage materials
Published: 12/6/2008
Authors: H. Oguchi, Edwin J Heilweil, Daniel Josell, Leonid A Bendersky
Abstract: Combinatorial thin films provide an opportunity for studying a variety of properties over a wide range of compositions and microstructures on a single substrate, allowing substantial acceleration of both the fabrication and study of materials and th ...

32. Terahertz spectroscopy of aqueous L-Proline in reverse micelles
Published: 11/21/2008
Authors: Catherine C Cooksey, Edwin J Heilweil, Benjamin Greer
Abstract: A new method for obtaining room temperature terahertz (THz) absorption spectra of aqueous-phase biomolecules in the frequency range 1 THz to 21 THz (35 cm-1 to 700 cm-1) is reported. The spectrum for L-Proline was acquired by solvating the amino ac ...

33. Terahertz Spectroscopy of Biomolecules
Published: 12/22/2007
Authors: David F Plusquellic, Edwin J Heilweil
Abstract: Far-infrared (Terahertz or THz) spectroscopic investigations of condensed-phase biological and model organic species including substituted benzenes, amino acids, sugars, polypeptides, small proteins and DNA/RNA are reviewed. These studies reveal tha ...

34. Ultrafast Dynamics of Model Molecular Photoswitches in Solid Phase
Published: 12/18/2007
Authors: Tung T. To, Edwin J Heilweil
Abstract: Ultraviolet pump, infrared probe transient absorption studies of the chelatable compound 1, [Mn{?5-C5H4C(O)(SCH3)3}(CO)3], dispersed in room temperature, ~25 m thick polyacryclonitrile (PAN) films are reported for the first time. Irradiation of 1 ...

35. Ultrafast Chelation Dynamics of a Manganese Tricarbonyl Derivative in Solid Polyacrylonitrile
Published: 7/31/2007
Authors: Tung T To, Edwin J Heilweil
Abstract: Ultraviolet pump, infrared probe transient absorption studies of the chelatable compound 1, [Mn{?5-C5H4C(O)(SCH3)3}(CO)3], dispersed in room temperature, ~25 m thick CaF2 supported, spin-coated polyacryclonitrile (PAN) films are reported for the fir ...

36. Ultrafast Chelation Dynamics of Model Photoswitches: Arene Chromium Tricarbonyl Derivatives With Pendant Sulfides
Published: 5/25/2007
Authors: Tung T. To, Charles Duke, T J Burkey, Edwin J Heilweil
Abstract: The chelation dynamics of three new [Cr{?6-C6H5C(O)R}(CO)3] complexes 1 (R = CH2(SCH3)), 2 (R = CH(SCH3)2), and 3 (R = C(SCH3)3) in room temperature heptane, THF, and acetonitrile solutions have been investigated on the picosecond to millisecond time ...

37. Terahertz Spectroscopy of Dicyanobenzenes: Anomalous Absorption Intensities and Spectral Calculations
Published: 5/24/2007
Authors: Okan Esenturk, Ari Evans, Edwin J Heilweil
Abstract: Terahertz (THz) absorption spectra of the three isomeric structures of dicyanobenzene obtained from chloroform solutions and the solid phase at 298 K are reported. These spectra exhibit enhanced absorption cross-sections over those measured for most ...

38. The Use of Apertures to Create Discrete Combinatorial Libraries Using Pulsed Laser Deposition
Published: 5/18/2007
Authors: Nabil Bassim, Peter K. Schenck, Eugene Donev, Edwin J Heilweil, Eric J Cockayne, Martin L Green, Leonard Feldman
Abstract: In Pulsed-Laser Deposition (PLD), there are many processing parameters that influence film properties which may be studied such as substrate-target distance, background reactive gas pressure, laser energy, substrate temperature and composition in mul ...

39. Applications of THz Spectroscopy in Biosystems
Published: 1/1/2007
Authors: David F Plusquellic, Karen M. Siegrist, Edwin J Heilweil, Okan Esenturk

40. Process Analytical Technology (PAT): Effects of Instrumental and Compositional Variables on Terahertz Spectral Data Quality to Characterize Pharmaceutical Materials and Tablets
Published: 1/1/2007
Authors: H Wu, Edwin J Heilweil, A S Hussain, M A Khan

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