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You searched on: Topic Area: Spectroscopy Sorted by: title

Displaying records 71 to 79.
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71. The Detection of Interstellar Ethanimine (CH3CHNH) from Observations taken during the GBT PRIMOS Survey
Topic: Spectroscopy
Published: 2/13/2013
Authors: Francis John Lovas, Ryan A. Loomis, Daniel P. Zaleski, Amanda L. Steber, Justin L. Neill, Matthew T. Muckle, Brent J. Harris, Jan M. Hollis, Phillip R. Jewell, Valerio Lattanzi, Oscar Martines, Michael C. McCarthy, Anthony J. Remijan, Brooks H. Pate
Abstract: As the availab¬¬ility of publicly accessible spectral line surveys from radio astronomy increases, new approaches to the identification of molecules in the interstellar medium are possible. We have performed reaction product screening measurements u ...

72. The NIST Electron Effective-Attenuation-Length Database
Series: OTHER
Topic: Spectroscopy
Published: 2/1/2002
Authors: Cedric John Powell, Aleksander Jablonski
Abstract: The NIST Electron Effective-Attenuation-Length Database provides values of electron effective attenuation lengths (EALs) in solid elements and compounds at selected electron energies between 50 eV and 2,000 eV. The database was designed mainly to pr ...

73. Thermochemistry of Ammonium Nitrate, NH4NO3, in the Gas Phase
Topic: Spectroscopy
Published: 10/7/2010
Author: Karl K Irikura
Abstract: Hildenbrand and coworkers have shown recently that the vapor above solid ammonium nitrate includes molecules of NH4NO3, not only NH3 and HNO3 as previously believed. Their measurements led to thermochemical values that imply an enthalpy change of D2 ...

74. Time-Resolved Infrared Studies of a Trimethylphosphine Model Derivative of [FeFe]-Hydrogenase
Topic: Spectroscopy
Published: 10/1/2013
Authors: Edwin J Heilweil, Christopher Jon Stromberg, Melissa Johnson, James Thuman, Roger G. Letterman, Webster Edwin Charles
Abstract: Model compounds that structurally mimic the hydrogen-producing active site of [FeFe] hydrogenases have been explored. In order to explore potential ground-state electronic structure effects on reaction mechanisms compared to hexacarbonyl derivatives, ...

75. To Predict Vibrational Spectra, Are Anharmonic Calculations Worthwhile?
Topic: Spectroscopy
Published: 1/22/2013
Authors: Ruth Lafuente Jacobsen, Karl K Irikura, Russell D Johnson III, Raghu N Kacker
Abstract: Anharmonic calculations using vibrational perturbation theory are known to provide near-spectroscopic accuracy when combined with high-level ab initio potential energy functions. However, performance with economical, popular electronic structure meth ...

76. Ultrafast Photoinduced Carrier Dynamics of Organic Semiconductors Measured by Time-Resolved Terahertz Spectroscopy
Topic: Spectroscopy
Published: 4/28/2010
Authors: Okan Esenturk, Joseph S Melinger, Paul A. Lane, Edwin J Heilweil
Abstract: Intrinsic properties of organic semiconductors are investigated by Time-Resolved Terahertz Spectroscopy (TRTS) to assess their relative mobilities and efficiencies. Our results are well correlated with device measurements, and show the effectiveness ...

77. Ultrafast Transient THz Spectroscopy of Azobenzene
Topic: Spectroscopy
Published: 1/1/2005
Authors: Okan Esenturk, Edwin J Heilweil

78. Using DTSA-II to Simulate and Interpret Energy Dispersive Spectra from Particles
Topic: Spectroscopy
Published: 2/27/2010
Author: Nicholas W m Ritchie
Abstract: A high quality x-ray spectrum image of a 3.3 μm diameter sphere of K411 glass resting on a copper substrate was collected at 25 keV. The same sample configuration was modeled using the NISTMonte Monte Carlo simulation of electron and x-ray tra ...

79. Vibrationally-Resolved Sum-Frequency Generation With Broad Bandwidth Infrared Pulses
Topic: Spectroscopy
Published: 10/15/1998
Authors: Lee J Richter, T Petralli-Mallow, John C. Stephenson
Abstract: We present a novel procedure for vibrationally-resolved sum-frequency generation (SFG) in which a broad-bandwidth IR pulse is mixed with a narrow-bandwidth visible pulse. The resultant SFG spectrum is dispersed with a spectrograph and detected in pa ...

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