Chiral analysis of pantolactone with molecular rotational resonance spectroscopy

Chirality ◽  
2021 ◽  
Author(s):  
Reilly E. Sonstrom ◽  
Justin L. Neill ◽  
Alexander V. Mikhonin ◽  
Reinhard Doetzer ◽  
Brooks H. Pate
Keyword(s):  
Chiral Analysis ◽  
Resonance Spectroscopy ◽  
Rotational Resonance

Fourier transform molecular rotational resonance spectroscopy for reprogrammable chemical sensing

2015 ◽  
Author(s):  
Brent J. Harris ◽  
Robin L. Pulliam ◽  
Justin L. Neill ◽  
Matt T. Muckle ◽  
Roger Reynolds ◽  
...  
Keyword(s):  
Fourier Transform ◽  
Chemical Sensing ◽  
Resonance Spectroscopy ◽  
Rotational Resonance

Molecular Rotational Resonance Spectroscopy

1969 ◽  
Vol 23 (6) ◽  
pp. 575-581 ◽  
Author(s):  
Stuart Armstrong
Keyword(s):  
Molecular Structure ◽  
The Other ◽  
Resonance Spectroscopy ◽  
Rotational Resonance ◽  
Large Molecules ◽  
Intensity Measurements ◽  
Review Articles ◽  
Structure Determinations

A number of recent review articles have summarized the application of Molecular Rotational Resonance (MRR) spectroscopy to the area of molecular structure determinations and described how these applications have applied to chemistry. This article will briefly review this established area of MRR spectroscopy and describe two developments that offer the promise of expanding the applicability of MRR spectroscopy. The first development was the observation that some large molecules (by MRR standards) give a series of relatively intense, equally spaced bands that can be quickly recorded and assigned. The other development has been in the theory, procedures, and instrumentation required for accurate intensity measurements. These two developments, examples of each, and the implication of each for use by chemists, as well as molecular structure determinations, will be discussed. Spectrometers that are being used for studies in this established area and the two newer areas will be described in the Appendix.

scholarly journals Direct Measurements of Small Polar Impurities in Gasoline Mixtures Using Molecular Rotational Resonance Spectroscopy

2019 ◽  
pp. 000370281985901
Author(s):  
Artressa L. Christophe ◽  
Jalon T. Barnes ◽  
Sylvestre Twagirayezu ◽  
Aleksandr Mikhonin ◽  
Matthew T. Muckle ◽  
...  
Keyword(s):  
Polar Compounds ◽  
Resonance Spectroscopy ◽  
Rotational Spectrum ◽  
Rotational Resonance ◽  
Rotational Spectra ◽  
Direct Measurements ◽  
Commercial Gasoline ◽  
Standard Linear ◽  
Petroleum Analysis ◽  
Ethanol In Water

This paper reports our efforts to determine whether rotational spectroscopy is a useful tool for petroleum analysis. These efforts include the use of a BrightSpec molecular rotational resonance (MRR) spectrometer, which operates in the 260–290 GHz frequency range, to record rotational spectra of small polar contaminants in commercial gasoline. The observed rotational spectra showed rich, but assignable, patterns due to the sensitivity of the MRR to only small polar compounds. Any interference from a complex hydrocarbon matrix, which in conventional chromatographic methods obscures signals from small polar contaminants, is nearly eliminated. In addition to the evident rotational spectrum of ethanol, the spectra of toluene, ethyl cyanide, and acetaldehyde have also been detected. A quantitative method for ethanol has been developed and demonstrated in this paper, whereas the specific analyses of the other polar impurities will be reported in the future. The validity of MRR to be used as an analytical instrument has been examined by constructing a standard linear curve using dilutions of ethanol in water. The linearity and percentage recovery parameters are satisfactory.

Enhancing Sensitivity for High-Selectivity Gas Chromatography-Molecular Rotational Resonance Spectroscopy

2021 ◽  
Author(s):  
M. Farooq Wahab ◽  
Saba Aslani ◽  
Alexander V. Mikhonin ◽  
Justin L. Neill ◽  
Daniel W. Armstrong
Keyword(s):  
Gas Chromatography ◽  
High Selectivity ◽  
Resonance Spectroscopy ◽  
Rotational Resonance

Online Stereochemical Process Monitoring by Molecular Rotational Resonance Spectroscopy

2019 ◽  
Vol 23 (5) ◽  
pp. 1046-1051 ◽  
Author(s):  
Justin L. Neill ◽  
Yuan Yang ◽  
Matt T. Muckle ◽  
Roger L. Reynolds ◽  
Luca Evangelisti ◽  
...  
Keyword(s):  
Process Monitoring ◽  
Resonance Spectroscopy ◽  
Rotational Resonance

A Gas Chromatography‐Molecular Rotational Resonance Spectroscopy Based System of Singular Specificity

2019 ◽  
Vol 132 (1) ◽  
pp. 198-202 ◽  
Author(s):  
Daniel W. Armstrong ◽  
Mohsen Talebi ◽  
Nimisha Thakur ◽  
M. Farooq Wahab ◽  
Alexander V. Mikhonin ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Resonance Spectroscopy ◽  
Rotational Resonance
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