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You searched on: Topic Area: Chemical Physics Sorted by: title

Displaying records 1 to 10 of 22 records.
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1. A Microwave Study of Hydrogen-Transfer-Triggered Methyl-Group Rotation in 5-Methyltropolone
Topic: Chemical Physics
Published: 11/10/2010
Authors: Vadim V. Ilyushin, Emily A. Cloessner, Yung-Ching Chou, Laura B. Picraux, Jon Torger Hougen, Richard Lavrich
Abstract: We present here the first experimental and theoretical study of the microwave spectrum of 5-methyltropolone, which can be visualized as a 7-membered aromatic carbon ring with a five-membered hydrogen-bonded cyclic structure at the top and a methyl ...

2. Analysis of Several High-Resolution Bands of Spiropentane, C5H8
Topic: Chemical Physics
Published: 6/15/2015
Authors: Alfons Weber, A. Maki, J. E Price, Jared Harzan, J. W. Nibler, T. Masiello, T Blake
Abstract: The high resolution absorption spectrum of spiropentane (C5H8) from 200 cm-1 to 4000 cm−1 has been measured and a detailed analysis is presented for eight bands in the region from 700 cm−1 to 2200 cm−1. Two fundamental perpendicula ...

3. Coherent cavity-enhanced dual-comb spectroscopy
Topic: Chemical Physics
Published: 5/4/2016
Authors: Adam J Fleisher, David A Long, Zachary D Reed, David F Plusquellic, Joseph Terence Hodges
Abstract: Multiheterodyne spectroscopy performed with two stabilized optical frequency combs (OFCs) has shown great potential as a fast, accurate, and high-resolution substitute for existing interferometry methods that require lengthy integration times and pre ...

4. Computational Study of Trimer Self-Assembly and Fluid Phase Behavior
Topic: Chemical Physics
Published: 4/24/2015
Authors: Harold Wickes Hatch, Vincent K Shen, Jeetain Mittal
Abstract: The fluid phase diagram of trimer particles composed of one central attractive bead and two repulsive beads was determined as a function of simple geometric parameters using flat-histogram Monte Carlo methods. A variety of self-assembled structures ...

5. 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 ...

6. Depletion-Driven Crystallization of Cubic Colloids Sedimented on a Surface
Topic: Chemical Physics
Published: 5/19/2016
Authors: Harold Wickes Hatch, William P Krekelberg, Steven D Hudson, Vincent K Shen
Abstract: Cubic colloids, sedimented on a surface and immersed in a solution of depletant molecules, were modeled with a family of shapes which smoothly varies from squares to circles. Using Wang-Landau simulations with expanded ensembles, we observe the fo ...

7. High signal-to-noise ratio laser technique for accurate measurements of spectral line parameters
Topic: Chemical Physics
Published: 2/9/2012
Authors: A. Cygan, D Lisak, S. Wojtewicz, J. Domyslawska, Joseph Terence Hodges, R.S. Trawinski, R. Ciurylo
Abstract: We present a new cavity-enhanced technique for the precise measurement of absorption line shape and line position. This approach, which combines high-bandwidth locking of a continuous wave probe laser with frequency-stabilized cavity ring-down spect ...

8. Identification of phase boundaries in surfactant solutions via Compton spectrum quenching,Identification of phase boundaries in surfactant solutions via Compton spectrum quenching
Topic: Chemical Physics
Published: 9/18/2014
Author: Denis E Bergeron
Abstract: The critical micelle concentration and the phase boundary between isolated surfactant molecules and aggregates are probed via fluorescence spectroscopy and a Compton spectrum quenching technique for aqueous and toluenic solutions of Triton X-100 (TX- ...

9. Impact of intrinsic backbone chain stiffness on the bottle-brush diblock copolymer morphology
Topic: Chemical Physics
Published: 8/5/2016
Authors: Panagiotis Theodorakis, Alexandros Chremos
Abstract: We investigate the role of the intrinsic backbone chain stiffness on the morphology behavior of bottle-brush diblock copolymers by using molecular dynamics simulations of a bead-spring coarse- grained model. We focus on bottle-brush having blocks ...

10. Long Working-Distance Optical Trap for in Situ Analysis of Contact-Induced Phase Transformations
Topic: Chemical Physics
Published: 5/11/2015
Authors: Joshua A Gordon, Ryan D Davis, Sara Lance, Margaret A Tolbert
Abstract: The development and characterization of a long working-distance optical trap to analyze a diverse range of particle phase transformations and crystal growth processes is described. Utilizing an upward propagating Gaussian beam and a down-ward propag ...

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