Results 31 to 40 of about 1,499,763 (298)

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

open access: yes, 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

The missing conformer: A comprehensive rotational spectroscopy study and astronomical search of two conformers of methyl cyanoacetate

open access: yesFrontiers in Astronomy and Space Sciences, 2022
We performed a comprehensive investigation of methyl cyanoacetate (MCA) using high-resolution Fourier transform rotational spectroscopy. Two low energy conformers of MCA were observed in the vibrational ground state, in selected frequency regions from 2 ...
Gayatri Batra   +9 more
doaj   +1 more source

Electric Dipole Moments from Stark Effect in Supersonic Expansion: n-Propanol, n-Butanol, and n-Butyl Cyanide

open access: yesMolecules, 2023
The orientation and magnitude of the molecular electric dipole moment are key properties relevant to topics ranging from the nature of intermolecular interactions to the quantitative analysis of complex gas-phase mixtures, such as chemistry in ...
Zbigniew Kisiel, Krzysztof Habdas
doaj   +1 more source

Toward Gas-Phase Thermometry Using Pure-Rotational Impulsive Stimulated Raman Scattering Spectroscopy with a Low-Energy Femtosecond Oscillator

open access: yesApplied Sciences, 2022
Femtosecond coherent Raman techniques have significant diagnostic value for the sensitive and non-intrusive measurement of temperature, pressure, and composition of gas mixtures.
Mauro Falconieri   +5 more
doaj   +1 more source

From the laboratory to the interstellar medium: a strategy to search for exotic molecules in space

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The chemistry of the interstellar medium occurs under extreme conditions and can lead to the formation of exotic molecules. These are species that on Earth are unstable and/or highly reactive. Their discovery in space is usually based on the astronomical
Cristina Puzzarini   +4 more
doaj   +1 more source

Pure Rotational Spectroscopy Of Rare Gas Dimers Based On Rotational Wave Packet Imaging [PDF]

open access: yes, 2022
We report time-domain rotational spectroscopy of argon dimer and krypton dimer by implementing time-resolved Coulomb explosion imaging of rotational wave packets.
Mizuse, Kenta
core   +1 more source

Spectroscopic Characterization of 3-Aminoisoxazole, a Prebiotic Precursor of Ribonucleotides

open access: yesMolecules, 2022
The processes and reactions that led to the formation of the first biomolecules on Earth play a key role in the highly debated theme of the origin of life.
Alessio Melli   +8 more
doaj   +1 more source

Seven Conformations of the Macrocycle Cyclododecanone Unveiled by Microwave Spectroscopy

open access: yesMolecules, 2021
The physicochemical properties and reactivity of macrocycles are critically shaped by their conformations. In this work, we have identified seven conformations of the macrocyclic ketone cyclododecanone using chirped-pulse Fourier transform microwave ...
Ecaterina Burevschi, M. Eugenia Sanz
doaj   +1 more source

Accuracy Meets Interpretability for Computational Spectroscopy by Means of Hybrid and Double-Hybrid Functionals

open access: yesFrontiers in Chemistry, 2020
Accuracy and interpretability are often seen as the devil and holy grail in computational spectroscopy and their reconciliation remains a primary research goal.
Vincenzo Barone   +3 more
doaj   +1 more source

Thermal transfer simulation regarding the rotational moulding of polyamide 11 [PDF]

open access: yes, 2013
Simulation of thermal phenomena in rotational moulding is very important to follow the evolution of the temperature in various zones of this process. It was a question of modelling heat gradients developing in rota-tional moulding part.
TCHARKHTCHI, Abbas   +2 more
core   +1 more source

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