Results 41 to 50 of about 47,611 (304)

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

CHARACTERIZING THE STRUCTURE OF SUCCINIMIDE WITH BROADBAND ROTATIONAL SPECTROSCOPY [PDF]

, 2023
Succinimide is a heterocyclic organic compound whose derivatives have anticonvulsant applications. We measured its molecular parameters using chirped-pulse Fourier transform microwave (CP-FTMW) spectroscopy in the 26-40 GHz frequency range, which is ...
Williams, Sivanjali Elena
core   +1 more source

Electronic spectroscopy of cold cations in a 22-pole trap by indirect methods [PDF]

, 2013
The confining capabilities of a 22-pole ion trap have been employed to mea- sure electronic spectra of cations of astrophysical relevance. The ion trap sits on the head of a closed cycle cryostat, enabling collisional cooling of the confined ions with
Chakrabarty, Satrajit
core   +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

Advances in molecular rotational spectroscopy for applied science [PDF]

, 2017
Made available in DSpace on 2017-07-27T20:15:37Z (GMT). No. of bitstreams: 2 2697.pdf: 12611 bytes, checksum: 0e0b2a0bde2776c059afe5ec45b5ed8b (MD5) license.txt: 4814 bytes, checksum: a3dad671d2baf2db10a2bec0f2e0c408 (MD5) Previous issue date: 6Made
Neill, Justin L.
core   +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

Structural Changes of Yellow Cameleon Domains Observed by Quantitative FRET Analysis and Polarized Fluorescence Correlation Spectroscopy

, 2008
Förster resonance energy transfer (FRET) is a widely used method for monitoring interactions between or within biological macromolecules conjugated with suitable donor-acceptor pairs.
Laptenok, S., Visser, N.V., Kalinin, S., Hornen, H., Hoek, A., van, Kühnemuth, R., Borst, J.W., van Hoek, A., Westphal, A.H., Aker, J., Aker, J.C.M., Kyhnemuth, R., Laptenok, S.P., Seidel, C.A.M., Visser, A.J.W.G.   +14 more
core   +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

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