Results 21 to 30 of about 129,793 (295)

Spectroscopic Characterization of Diazophosphane—A Candidate for Astrophysical Observations

open access: yesThe Astrophysical Journal, 2023
Quite recently, diazophosphane, HP−N≡N, was synthesized for the first time. This was accomplished by a reaction of PH _3 with N _2 under UV irradiation at 193 nm.
Martin Tschöpe, Guntram Rauhut
doaj   +1 more source

Molecular ion trap-depletion spectroscopy of BaCl$^+$

open access: yes, 2011
We demonstrate a simple technique for molecular ion spectroscopy. BaCl$^+$ molecular ions are trapped in a linear Paul trap in the presence of a room-temperature He buffer gas and photodissociated by driving an electronic transition from the ground X$^1 ...
Chen, Kuang   +6 more
core   +1 more source

Rotational spectroscopy of the HCCO and DCCO radicals in the millimeter and submillimeter range [PDF]

open access: yes, 2018
The ketenyl radical, HCCO, has recently been detected in the ISM for the first time. Further astronomical detections of HCCO will help us understand its gas-grain chemistry, and subsequently revise the oxygen-bearing chemistry towards dark clouds ...
Bizzocchi, L.   +7 more
core   +1 more source

Synthesis and characterization of violurate-based Mn(II) and Cu(II) complexes nano-crystallites as DNA-binders and therapeutics agents against SARS-CoV-2 virus

open access: yesJournal of Saudi Chemical Society, 2022
Synthesis and structural characterization of nano crystallites of bis-violurate-based manganese(II) and copper(II) chelates is the subject of the present study.
Sami A. Al-Harbi
doaj   +1 more source

Deformed Heisenberg Algebra with a minimal length: Application to some molecular potentials

open access: yes, 2016
We review the essentials of the formalism of quantum mechanics based on a deformed Heisenbeg algebra, leading to the existence of a minimal length scale.
Bouaziz, Djamil
core   +1 more source

Computational and Spectroscopic Investigation of Diaminomethane Formation: The Simplest Geminal Diamine of Astrochemical Interest

open access: yesAtoms
A high-level ab initio characterization and formation of diaminomethane (DAM), the simplest geminal diamine, is presented to support its spectroscopic detection and astrochemical relevance in the interstellar medium.
Pravi Mishra   +8 more
doaj   +1 more source

High-Accuracy Quartic Force Field Calculations for the Spectroscopic Constants and Vibrational Frequencies of 1 ^1A' l-C3H-: A Possible Link to Lines Observed in the Horsehead Nebula PDR

open access: yes, 2013
It has been shown that rotational lines observed in the Horsehead nebula PDR are probably not caused by l-C3H+, as was originally suggested. In the search for viable alternative candidate carriers, quartic force fields are employed here to provide highly
Crawford, T. Daniel   +3 more
core   +1 more source

Spectroscopic Constants, Abundances, and Opacities of the TiH Molecule

open access: yes, 2004
Using previous measurements and quantum chemical calculations to derive the molecular properties of the TiH molecule, we obtain new values for its ro-vibrational constants, thermochemical data, spectral line lists, line strengths, and absorption ...
A. Burrows   +8 more
core   +1 more source

Ab initio spectroscopic characterization of the radical CH$_3$OCH$_2$ at low temperatures [PDF]

open access: yes, 2019
Spectroscopic and structural properties of methoxymethyl radical (CH$_3$OCH$_2$, RDME) are determined using explicitly correlated ab initio methods.
Al-Mogren, M. Mogren   +4 more
core   +2 more sources

Spectroscopic parameters and molecular constants of X1+ and a3 electronic states of BF radical

open access: yesActa Physica Sinica, 2012
The potential energy curves (PECs) of the X1+ and a3 electronic states of the BF radical are studied by employing the ab initio quantum chemical method. The calculations are performed by using the complete active space self-consistent field (CASSCF) method followed by the valence internally contracted multireference configuration interaction (MRCI ...
null Shi De-Heng   +3 more
openaire   +1 more source

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