Results 1 to 10 of about 1,499,763 (298)

Feedback Optimization Strategy for Rotational Alignment Echo Spectroscopy

Advanced Photonics Research, 2023
The recent discovery of rotational echoes has contributed to extend the applications of field‐free molecular alignment to short time scales, namely to a temporal region preceding the first alignment revival of the molecule. Most echo measurements require
Manon Bournazel, Antoine Espaignol, Pierre Béjot, Edouard Hertz, Franck Billard, Olivier Faucher   +5 more
doaj   +1 more source

Pure Rotational Spectrum of Benzophenone Detected by Broadband Microwave Spectrometer in the 2–8 GHz Range

Applied Sciences, 2020
The investigation on microwave spectrum of benzophenone was conducted with a recently constructed broadband chirped-pulse Fourier transform microwave spectrometer with a heating nozzle in the 2–8 GHz range.
Haoyang Tan, Miaoling Yang, Chenbo Huang, Shengwen Duan, Ming Sun, Qian Chen, Chao Jiao, Yi Wu   +7 more
doaj   +1 more source

The phenyl vinyl ether–methanol complex: a model system for quantum chemistry benchmarking

Beilstein Journal of Organic Chemistry, 2018
The structure of the isolated aggregate of phenyl vinyl ether and methanol is studied by combining a multi-spectroscopic approach and quantum-chemical calculations in order to investigate the delicate interplay of noncovalent interactions.
Dominic Bernhard, Fabian Dietrich, Mariyam Fatima, Cristóbal Pérez, Hannes C. Gottschalk, Axel Wuttke, Ricardo A. Mata, Martin A. Suhm, Melanie Schnell, Markus Gerhards   +9 more
doaj   +1 more source

Spectral Signatures of Hydrogen Thioperoxide (HOSH) and Hydrogen Persulfide (HSSH): Possible Molecular Sulfur Sinks in the Dense ISM

Molecules, 2022
For decades, sulfur has remained underdetected in molecular form within the dense interstellar medium (ISM), and somewhere a molecular sulfur sink exists where it may be hiding. With the discovery of hydrogen peroxide (HOOH) in the ISM in 2011, a natural
Charles Z. Palmer, Ryan C. Fortenberry, Joseph S. Francisco   +2 more
doaj   +1 more source

Hydrogen Bonding in the Dimer and Monohydrate of 2-Adamantanol: A Test Case for Dispersion-Corrected Density Functional Methods

Molecules, 2022
Weakly-bound intermolecular clusters constitute reductionist physical models for non-covalent interactions. Here we report the observation of the monomer, the dimer and the monohydrate of 2-adamantanol, a secondary alcohol with a bulky ten-carbon ...
Marcos Juanes, Rizalina Tama Saragi, Cristóbal Pérez, Luca Evangelisti, Lourdes Enríquez, Martín Jaraíz, Alberto Lesarri   +6 more
doaj   +1 more source

Terahertz Rotational Spectroscopy [PDF]

Proceedings of the International Astronomical Union, 2005
The detection of interstellar molecules relies on the precise knowledge of spectral line positions from laboratory measurements. Technical developments of recent years have led to an extension of the accessible spectral range towards shorter wavelengths. New telescopes like SOFIA, the HIFI instrument aboard the Herschel satellite, and ALMA will be used
T. F. Giesen, S. Brünken, M. Caris, P. Neubauer-Guenther, U. Fuchs, G. W. Fuchs, F. Lewen   +6 more
openaire   +1 more source

Microwave quantum logic spectroscopy and control of molecular ions

New Journal of Physics, 2013
A general method for rotational microwave spectroscopy and control of polar molecular ions via direct microwave addressing is considered. Our method makes use of spatially varying ac Stark shifts, induced by far off-resonant, focused laser beams to ...
M Shi, P F Herskind, M Drewsen, I L Chuang   +3 more
doaj   +1 more source

Gas-phase Chemistry in the Interstellar Medium: The Role of Laboratory Astrochemistry

Frontiers in Astronomy and Space Sciences, 2022
“Who” and how? In this simple question the complexity of the interstellar chemistry is encapsulated. “Who” refers to what molecules are present in the interstellar medium (ISM) and “how” to the mechanisms that led to their formation.
Cristina Puzzarini
doaj   +1 more source

Anharmonic Vibrational Frequencies of Water Borane and Associated Molecules

Molecules, 2021
Water borane (BH3OH2) and borinic acid (BH2OH) have been proposed as intermediates along the pathway of hydrogen generation from simple reactants: water and borane.
Brent R. Westbrook, Ryan C. Fortenberry
doaj   +1 more source

Theoretical spectra and energetics for c-C3HC2H, l-C5H2, and bipyramidal D3h C5H2

Frontiers in Astronomy and Space Sciences, 2022
The recent astronomical detection of c-C3HC2H and l-C5H2 has led to increased interest in C5H2 isomers and their relative stability. The present work provides the first complete list of anharmonic vibrational spectral data with infrared intensities for ...
Alexandria G. Watrous, Brent R. Westbrook, Ryan C. Fortenberry   +2 more
doaj   +1 more source