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

Study of Configurational Sequence Structures of Poly(Butadiene)s by Carbon-13 Proton Decoupled Fourier Transform Nuclear Magnetic Resonance Spectroscopy

1973 ◽  
Vol 46 (2) ◽  
pp. 350-358 ◽  
Author(s):  
Yasuhide Alaki ◽  
Toshio Yoshimoto ◽  
Mamoru Imanari ◽  
Makoto Takeuchi
Keyword(s):  
Nuclear Magnetic Resonance ◽  
Fourier Transform ◽  
Magnetic Resonance ◽  
Magnetic Resonance Spectroscopy ◽  
Polymer Chains ◽  
Proton Nuclear Magnetic Resonance ◽  
Resonance Spectroscopy ◽  
Sequence Structure ◽  
Nmr Method ◽  
Nuclear Magnetic

Abstract Carbon-13 proton nuclear magnetic resonance (NMR) of poly(butadiene) s consisting of various ratios of cis-1,4-, trans-1,4- and 1,2-structures were measured by the pulsed Fourier transform NMR method. The spectra of poly(butadiene)s with two or three kinds of butadiene configurations show several new signals which were not observed for homopolymers comprising merely one kind of butadiene configuration. All of these peaks are ascribed to the carbons linked by different kinds of configurations. From these results, the configurational sequence structure of butadiene units in polymer chains has been revealed.

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.

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