Neutral-Neutral Gas-Phase Reactions In Extraterrestrial Environments: Laboratory Investigations By Crossed Molecular Beams

2006 ◽  
Author(s):  
Nadia Balucani ◽  
Piergiorgio Casavecchia
Keyword(s):  
Gas Phase ◽  
Molecular Beams ◽  
Gas Phase Reactions ◽  
Neutral Gas ◽  
Crossed Molecular Beams ◽  
Laboratory Investigations

Gas-Phase Synthesis of Boronylallene (H2CCCH(BO)) under Single Collision Conditions: A Crossed Molecular Beams and Computational Study

2014 ◽  
Vol 118 (21) ◽  
pp. 3810-3819 ◽  
Author(s):  
Surajit Maity ◽  
Dorian S. N. Parker ◽  
Ralf I. Kaiser ◽  
Brad Ganoe ◽  
Stefan Fau ◽  
...  
Keyword(s):  
Gas Phase ◽  
Computational Study ◽  
Molecular Beams ◽  
Phase Synthesis ◽  
Single Collision ◽  
Gas Phase Synthesis ◽  
Crossed Molecular Beams

scholarly journals Gas-phase prebiotic chemistry in extraterrestrial environments

2009 ◽  
Vol 5 (H15) ◽  
pp. 682-683 ◽  
Author(s):  
Nadia Balucani
Keyword(s):  
Gas Phase ◽  
Gas Phase Reactions ◽  
Chemical Modeling ◽  
Elementary Reactions ◽  
Interstellar Clouds ◽  
Neutral Gas ◽  
Prebiotic Molecules ◽  
Complex Chemistry ◽  
Cometary Comae

AbstractA variety of molecular species up to complex polyatomic molecules/radicals have been identified in many extraterrestrial gaseous environments, including interstellar clouds, cometary comae and planetary atmospheres. Amongst the identified molecules/radicals, a large percentage are organic in nature and encompass also prebiotic molecules. Different types of microscopic processes are believed to be involved in their formation, including surface processes, ion- and radical- molecule reactions. A thorough characterization of such a complex chemistry relies on a multi-disciplinary approach, where the observations are complemented by accurate chemical modeling. Unfortunately, a literature survey reveals that only a small percentage of the elementary reactions considered in the available models have been characterized in laboratory experiments. In this contribution, a brief overview will be given of recent experimental techniques that have allowed us to reach a better description of neutral-neutral gas-phase reactions, which might be responsible for the formation of simple prebiotic molecules.

Directed Gas-Phase Preparation of the Elusive Phosphinosilylidyne (SiPH2, X2A’’) and Cis/Trans Phosphinidenesilyl (HSiPH; X2A’) Radicals Under Single-Collision Conditions

2021 ◽  
Author(s):  
Chao He ◽  
Shane Joseph Goettl ◽  
Zhenghai Yang ◽  
Srinivas Doddipatla ◽  
Ralf I. Kaiser ◽  
...  
Keyword(s):  
Gas Phase ◽  
Molecular Beams ◽  
Experimental Results ◽  
Single Collision ◽  
Crossed Molecular Beams

The reaction of the D1-silylidyne radical (SiD; X2Π) with phosphine (PH3; X1A1) was conducted in a crossed molecular beams machine under single collision conditions. Merging of the experimental results with...

scholarly journals A twist on the reaction of the CN radical with methylamine in the interstellar medium: new hints from a state-of-the-art quantum-chemical study

2020 ◽  
Vol 496 (4) ◽  
pp. 4298-4310 ◽  
Author(s):  
Cristina Puzzarini ◽  
Zoi Salta ◽  
Nicola Tasinato ◽  
Jacopo Lupi ◽  
Carlo Cavallotti ◽  
...  
Keyword(s):  
Gas Phase ◽  
Quantum Chemical ◽  
State Of The Art ◽  
Quantum Chemical Study ◽  
Chemical Study ◽  
Gas Phase Reactions ◽  
Neutral Gas ◽  
Dust Grain ◽  
Complex Organic

ABSTRACT Despite the fact that the majority of current models assume that interstellar complex organic molecules (iCOMs) are formed on dust–grain surfaces, there is some evidence that neutral gas-phase reactions play an important role. In this paper, we investigate the reaction occurring in the gas phase between methylamine (CH3NH2) and the cyano (CN) radical, for which only fragmentary and/or inaccurate results have been reported to date. This case study allows us to point out the pivotal importance of employing quantum-chemical calculations at the state of the art. Since the two major products of the CH3NH2 + CN reaction, namely the CH3NH and CH2NH2 radicals, have not been spectroscopically characterized yet, some effort has been made for filling this gap.

A combined crossed molecular beams and ab initio investigation on the formation of vinylsulfidoboron (C2H311B32S)

2014 ◽  
Vol 16 (33) ◽  
pp. 17580-17587 ◽  
Author(s):  
Tao Yang ◽  
Beni B. Dangi ◽  
Dorian S. N. Parker ◽  
Ralf I. Kaiser ◽  
Yi An ◽  
...  
Keyword(s):  
Ab Initio ◽  
Gas Phase ◽  
Phase Formation ◽  
Molecular Beams ◽  
Single Collision ◽  
Crossed Molecular Beams

Bimolecular gas phase formation of vinylsulfidoboron (C2H311B32S) under single collision conditions.

Gas-Phase Reactions

1981 ◽  
Author(s):  
Victor N. Kondratiev ◽  
Evgeniĭ E. Nikitin
Keyword(s):  
Gas Phase ◽  
Gas Phase Reactions
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