Results 31 to 40 of about 33,651 (254)

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

Protonation of apolar species: From Cl2H+ to (E)-NCCHCHCNH+ through computational investigations

Frontiers in Astronomy and Space Sciences, 2023
Radioastronomy is a powerful tool for the discovery of molecules in space but it requires molecular species to be polar. The observation of apolar species can be however enabled by protonation, which occurs from reaction with the abundant H3+ ion ...
Silvia Alessandrini, Luca Bizzocchi, Mattia Melosso, Cristina Puzzarini   +3 more
doaj   +1 more source

Methyl Internal Rotation in Fruit Esters: Chain-Length Effect Observed in the Microwave Spectrum of Methyl Hexanoate

Molecules, 2022
The gas-phase structures of the fruit ester methyl hexanoate, CH3-O-(C=O)-C5H11, have been determined using a combination of molecular jet Fourier-transform microwave spectroscopy and quantum chemistry.
Nhu-Ngoc Dang, Hoang-Nam Pham, Isabelle Kleiner, Martin Schwell, Jens-Uwe Grabow, Ha Vinh Lam Nguyen   +5 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

Terahertz Rotational Spectroscopy of Greenhouse Gases Using Long Interaction Path-Lengths

Applied Sciences, 2021
Even if on-board mm-wave/THz heterodyne receivers have been developed to measure greenhouse gases (GHGs) atmospheric profiles, rotational spectroscopy rests under-exploited for their monitoring unlike IR rovibrational spectroscopy.
Arnaud Cuisset, Francis Hindle, Gaël Mouret, Robin Bocquet, Jonas Bruckhuisen, Jean Decker, Anastasiia Pienkina, Cédric Bray, Éric Fertein, Vincent Boudon   +9 more
doaj   +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

Revealing Internal Rotation and ¹⁴N Nuclear Quadrupole Coupling in the Atmospheric Pollutant 4-Methyl-2-nitrophenol: Interplay of Microwave Spectroscopy and Quantum Chemical Calculations

Molecules, 2023
The structure and interactions of oxygenated aromatic molecules are of atmospheric interest due to their toxicity and as precursors of aerosols. Here, we present the analysis of 4-methyl-2-nitrophenol (4MNP) using chirped pulse and Fabry–Pérot Fourier ...
Shefali Baweja, Eleonore Antonelli, Safia Hussain, Antonio Fernández-Ramos, Isabelle Kleiner, Ha Vinh Lam Nguyen, M. Eugenia Sanz   +6 more
doaj   +1 more source

Perfluorination of Aromatic Compounds Reinforce Their van der Waals Interactions with Rare Gases: The Rotational Spectrum of Pentafluoropyridine-Ne

Molecules, 2021
The rotational spectrum of the pentafluoropyridine-Ne complex, generated in a supersonic jet, has been investigated using chirped-pulse microwave Fourier transform spectroscopy in the 2–8 GHz range.
Alberto Macario, Susana Blanco, Ibon Alkorta, Juan Carlos López   +3 more
doaj   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source