Results 11 to 20 of about 47,611 (304)

Hyperfine-resolved rotational spectroscopy of HCNH+

Journal of Chemical Physics
The rotational spectrum of the molecular ion HCNH+ is revisited using double-resonance spectroscopy in an ion trap apparatus, with six transitions measured between 74 and 445 GHz. Due to the cryogenic temperature of the trap, the hyperfine splittings caused by the 14N quadrupolar nucleus were resolved for transitions up to J = 4 ← 3, allowing for a ...
Weslley G D P Silva, Luis Bonah, Philipp C Schmid   +2 more
exaly   +4 more sources

Enantioselective Synthesis of Enantioisotopomers with Quantitative Chiral Analysis by Chiral Tag Rotational Spectroscopy [PDF]

Angewandte Chemie - International Edition, 2022
Reilly E Sonstrom, Justin L Neill, Brooks H Pate   +2 more
exaly   +2 more sources

Toward Accurate Formation Routes of Complex Organic Molecules in the Interstellar Medium: The Paradigmatic Cases of Acrylonitrile and Cyanomethanimine

Frontiers in Astronomy and Space Sciences, 2022
The investigation of reaction mechanisms in the interstellar medium requires the evaluation of reaction rates and branching ratios, which can be effectively obtained in the framework of the ab-initio transition state/master equation formalism.
Vincenzo Barone, Cristina Puzzarini
doaj   +1 more source

Decoding the Structure of Non-Proteinogenic Amino Acids: The Rotational Spectrum of Jet-Cooled Laser-Ablated Thioproline

Molecules, 2021
The broadband rotational spectrum of jet-cooled laser-ablated thioproline was recorded. Two conformers of this system were observed and identified with the help of DFT and ab initio computations by comparison of the observed and calculated rotational ...
Juan Carlos López, Alberto Macario, Andrés Verde, Alfonso Pérez-Encabo, Susana Blanco   +4 more
doaj   +1 more source

CMOS System-on-Chip Spectrometer Processors for Spaceborne Microwave-to-THz Earth and Planetary Science and Radioastronomy

IEEE Journal of Microwaves, 2022
This article presents development of CMOS system-on-chip spectrometer processor for Spaceborne Earth Science, Planetary Science and Astronomy. The developed chip is intended for use in rotational emission spectroscopy observations from microwave to sub ...
Adrian Tang, Yangyho Kim, Yan Zhang, Gabriel Virbila, Nathaniel Livesey, Goutam Chattopadhyay, Subash Khanal, Jacob Kooi, Mau-Chung Frank Chang   +8 more
doaj   +1 more source

Chiral rotational spectroscopy [PDF]

Physical Review A, 2016
We introduce chiral rotational spectroscopy: a new technique that enables the determination of the orientated optical activity pseudotensor components $B_{XX}$, $B_{YY}$ and $B_{ZZ}$ of chiral molecules, in a manner that reveals the enantiomeric constitution of a sample and provides an incisive signal even for a racemate. Chiral rotational spectroscopy
Cameron, Robert B., Götte, Jörg B., Barnett, Stephen M.   +2 more
openaire   +7 more sources

Rotational Rest Frequencies and First Astronomical Search of Protonated Methylamine

Frontiers in Astronomy and Space Sciences, 2022
We report first laboratory rest frequencies for rotational transitions of protonated methylamine, CH3NH3+, measured in a cryogenic 22-pole ion trap machine and employing an action spectroscopy scheme.
Philipp C. Schmid, Sven Thorwirth, Christian P. Endres, Matthias Töpfer, Álvaro Sánchez-Monge, Andreas Schwörer, Peter Schilke, Stephan Schlemmer, Oskar Asvany   +8 more
doaj   +1 more source

1) Introductory lecture on rotational spectroscopy 2) Rotational spectroscopy at work

, 2010
1) Introductory lecture on rotational spectroscopy 2) Rotational spectroscopy at ...
PUZZARINI, CRISTINA
core   +2 more sources

The LAM of the Rings: Large Amplitude Motions in Aromatic Molecules Studied by Microwave Spectroscopy

Molecules, 2022
Large amplitude motions (LAMs) form a fundamental phenomenon that demands the development of specific theoretical and Hamiltonian models. In recent years, along with the strong progress in instrumental techniques on high-resolution microwave spectroscopy
Ha Vinh Lam Nguyen, Walther Caminati, Jens-Uwe Grabow   +2 more
doaj   +1 more source

KA-BAND ROTATIONAL SPECTROSCOPY OF N-HALOSUCCINIMIDES [PDF]

, 2023
N-halosuccinimides are important reagents in organic synthesis and in the chemistry of natural products, they can mediate or catalyze many reactions including halocyclizations and formation of heterocyclic systems.
Dim, Chisom Adaobi
core   +1 more source