Results 11 to 20 of about 3,012,302 (181)
Sensing Chirality with Rotational Spectroscopy [PDF]
Annual Review of Physical Chemistry, 2018 Chiroptical spectroscopy techniques for the differentiation of enantiomers in the condensed phase are based on an established paradigm that relies on symmetry breaking using circularly polarized light. We review a novel approach for the study of chiral molecules in the gas phase using broadband rotational spectroscopy, namely microwave three-wave ...
Rosa Domingos, Sergio Miguel +2 more
openaire +5 more sources
Laboratory detection and rotational spectroscopy of trans-HNSO: implications for astronomical observations [PDF]
Frontiers in ChemistrySulfur-bearing molecules are central to interstellar chemistry, yet their observed abundances in the gas phase remain far below cosmic expectations in dense interstellar regions.
Valerio Lattanzi +4 more
doaj +2 more sources
From Molecular to Cluster Properties: Rotational Spectroscopy of 2-Aminopyridine and of Its Biomimetic Cluster with Water [PDF]
Molecules, 2021 We report the observation and analysis of the rotational spectrum of a 1:1 cluster between 2-aminopyridine and water (AMW) carried out with supersonic expansion Fourier transform microwave spectroscopy at 4.7–16.5 GHz. Measurements of the 2-aminopyridine
Adam Kraśnicki +2 more
doaj +2 more sources
Rotational Spectroscopy Meets Quantum Chemistry for Analyzing Substituent Effects on Non-Covalent Interactions: The Case of the Trifluoroacetophenone-Water Complex [PDF]
Molecules, 2020 The most stable isomer of the 1:1 complex formed by 2,2,2-trifluoroacetophenone and water has been characterized by combining rotational spectroscopy in supersonic expansion and state-of-the-art quantum-chemical computations.
Juncheng Lei +7 more
doaj +2 more sources
Inversion Motion of Xanthene and Detection of Its Oxidation Product Xanthone from Gas-Phase Rotational Spectroscopy [PDF]
MoleculesThe rotational spectra of xanthene and its oxidation product xanthone were investigated by combining quantum chemical calculations with Fourier transform microwave spectroscopy in a jet-cooled environment.
Celina Bermúdez +2 more
doaj +2 more sources
Nonlinear two-dimensional terahertz photon echo and rotational spectroscopy in the gas phase. [PDF]
Proc Natl Acad Sci U S A, 2016 Significance Molecular rotations of small molecules provide a useful testbed for examining light−matter interactions with quantum mechanical systems, but the methods of modern spectroscopy have been largely unavailable in the terahertz frequency range ...
Lu J +5 more
europepmc +3 more sources
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
CO2 Aggregation on Monoethanolamine: Observation from Rotational Spectroscopy.
Angewandte Chemie, 2023 The initial stages of the gas-phase nucleation between CO2 and monoethanolamine were investigated via broadband rotational spectroscopy with the aid of extensive theoretical structure sampling. Sub-nanometer scale aggregation patterns of monoethanolamine-
F. Xie +3 more
semanticscholar +1 more source
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 +4 more
doaj +1 more source
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 +8 more
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