Ritz assignment and Watson fits of the high-resolution ring-puckering spectrum of oxetane

The vapor phase Raman spectra of trimethylene oxide (TMO) and two of its deuterated analogs (α-d2 and β-d2) each show one sharp line on a weak, broad, and unresolved band in the CH2 scissoring region. Under high resolution these lines are resolved into several components. They are assigned to the fundamentals of the scissoring mode of α-CH2 (in-phase, A1 symmetry, in the case of the normal and β-d2 compound) and overlapping bands resulting from interaction with the low frequency puckering vibration. The agreement between Raman and i.r. data is excellent and the assignments are entirely consistent. Raman lines corresponding to the out-of-phase combination (B2 symmetry) of the α-CH2 scissoring vibration and the scissoring mode of the β-CH2 group (in normal, α-d2 and α,α′-d4 TMO) cannot be resolved.

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High-Resolution Infrared Spectrum of the Ring-Puckering Band, ν10, of Diborane

Journal of Molecular Spectroscopy ◽

10.1006/jmsp.2000.8095 ◽

2000 ◽

Vol 201 (2) ◽

pp. 285-291 ◽

Cited By ~ 6

Author(s):

W.J. Lafferty ◽

J.-M. Flaud ◽

R.L. Sams ◽

T.A. Blake ◽

S.W. Sharpe

Keyword(s):

High Resolution ◽

Infrared Spectrum ◽

Ring Puckering

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Observations of the spatial structure of interstellar hydrogen

Symposium - International Astronomical Union ◽

10.1017/s007418090010066x ◽

1967 ◽

Vol 31 ◽

pp. 45-46

Author(s):

Carl Heiles

Keyword(s):

High Resolution ◽

Spatial Structure ◽

Velocity Dispersion ◽

Temperature Variations

High-resolution 21-cm line observations in a region aroundlII= 120°,b11= +15°, have revealed four types of structure in the interstellar hydrogen: a smooth background, large sheets of density 2 atoms cm-3, clouds occurring mostly in groups, and ‘Cloudlets’ of a few solar masses and a few parsecs in size; the velocity dispersion in the Cloudlets is only 1 km/sec. Strong temperature variations in the gas are in evidence.

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Combining integrated systems-biology approaches with intervention-based experimental design provides a higher-resolution path forward for microbiome research

Behavioral and Brain Sciences ◽

10.1017/s0140525x18002911 ◽

2019 ◽

Vol 42 ◽

Author(s):

J. Alfredo Blakeley-Ruiz ◽

Carlee S. McClintock ◽

Ralph Lydic ◽

Helen A. Baghdoyan ◽

James J. Choo ◽

...

Keyword(s):

Systems Biology ◽

High Resolution ◽

Experimental Design ◽

Integrated Systems ◽

Microbiome Research ◽

Constructive Criticism

Abstract The Hooks et al. review of microbiota-gut-brain (MGB) literature provides a constructive criticism of the general approaches encompassing MGB research. This commentary extends their review by: (a) highlighting capabilities of advanced systems-biology “-omics” techniques for microbiome research and (b) recommending that combining these high-resolution techniques with intervention-based experimental design may be the path forward for future MGB research.

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