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Search Publications by: David F. Plusquellic (Fed)

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Displaying 76 - 100 of 129

Rotational Spectra of the Diastereomers of Soman

April 1, 2004
Author(s)
R D. Suenram, R S. DaBell, Angela R. Hight Walker, D J. Lavrich, David F. Plusquellic, M W. Ellzy, J M. Lochner, L Cash, J O. Jensen, A C. Samuels
The pure rotational spectrum of the nerve agent Soman has been recorded and assigned using a pulsed molecular beam Fourier transform microwave spectrometer. The spectrum consists of transitions from two different isomers that are likely the [SS] (or [RR])

Continuous-Wave Terahertz Spectroscopy of Plasmas and Biomolecules

March 1, 2004
Author(s)
David F. Plusquellic, T M. Korter, Gerald T. Fraser, R J. Lavrich, Eric C. Benck, C R. Bucher, Angela R. Hight Walker, J L. Domenech
Continuous-wave linear-absorption spectroscopy based on THz radiation generated by solid-state photomixers has been applied to the investigation of the dynamics of biomolecules in polyethylene matrices and to line shape studies of HF for diagnostics of

Rotational Spectra, Conformational Structures and Dipole Moments of 2-(Ethylthio) Ethanol by Jet-Cooled FTMW and Ab Initio Calculations

January 1, 2004
Author(s)
R D. Suenram, David F. Plusquellic, Francis J. Lovas, A H. Walker, Q Liu, L H. Xu, J O. Jensen, A C. Samuels
The rotational spectra of three low-energy conformers of 2-(ethylthio)ethanol also known as ethyl 2-hydroxyethylsulfide or hydroxyethylethyl sulfide (HOEES), together with the monosubstituted C and 34S isotopic forms of the two lowest energy conformers

Rotational Spectrum of Soman

January 1, 2004
Author(s)
R S. DaBell, R D. Suenram, Angela R. Hight Walker, R J. Lavrich, David F. Plusquellic, M W. Ellzy, J M. Lochner, L Cash, J O. Jensen, A C. Samuels

Conformational Analysis of the Jet-Cooled Peptide Mimetic Ethylacetamidoacetate from Torsion-Rotation Spectra

September 1, 2003
Author(s)
R J. Lavrich, Angela R. Hight Walker, David F. Plusquellic, I Kleiner, R D. Suenram, Jon T. Hougen, Gerald T. Fraser
Rotational spectra of two conformers of the dipeptide mimetic, ethyl acetamidoacetate, were measured in a molecular beam using a Fourier-transform microwave spectrometer. In each conformer, internal rotation of the acetyl methyl group gives rise to

Experimental Studies of Peptide Bonds: Identification of the C 7 eq Conformation of the Alanine Dipeptide Analog N-Acetyl-Alanine N'-Methylamide From Torsion-Rotation Interactions

January 1, 2003
Author(s)
R J. Lavrich, David F. Plusquellic, R D. Suenram, Gerald T. Fraser, Angela R. Hight Walker, M J. Tubergen
Rotational spectra of the bio-mimetic molecule, alanine dipepitide and the double 15N( 15N 2) isotopomer have been observed using a pulsed-molecular-beam Fourier transform microwave spectrometer. The spectra reveal large tunneling splittings from the

High Resolution Spectroscopic Studies of 1-(1-Naphthyl)ethylamine in S 0 and S 1 : Exploring the Dependence of Circular Dichroism on Conformational Structure

October 1, 2002
Author(s)
David F. Plusquellic, R J. Lavrich, T Petralli-Mallow, S Davis, T M. Korter, R D. Suenram
Rotationally-resolved spectra of gas-phase samples of 1-(1-naphthyl) -ethylarnine (NEA) and amine deuterated forms have been obtained in the microwave and ultraviolet regions, with the isotopomers initially prepared in their zero-pointvibrational levels by

Fourier Transform Microwave Spectrum and Ab Initio Study of Dimethyl Methylphosphonate

January 1, 2002
Author(s)
R D. Suenram, Francis J. Lovas, David F. Plusquellic, A Lesarri, Y Kawashima, J O. Jensen, A C. Samuels
The rotational spectrum of dimethyl methylphophonate (DMMP) has been studied using a pulsed molecular beam Fourier transform microwave spectrometer. The spectrum is complicated by the internal rotation motions of the three methyl tops in the molecule as

The Conformational Structures and Dipole Moments of Ethyl Sulfide in the Gas Phase

August 1, 2001
Author(s)
David F. Plusquellic, R D. Suenram, B Mate, J O. Jensen, A C. Samuels
The pure rotational spectrum of ethyl sulfide has been measured from 12 gHz to 21 GHz in a 1 K Jet-cooled expansion using a Fourier-transform microwave (FTMW) spectrometer. Prominent features in the spectrum are assigned to transitions from three
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