COM isomers ƒe xexlẽme si wokpɔ le ISM me naa nyatakaka veviwo tso yawo ƒe atikewɔwɔ kple dzɔdzɔmeŋusẽŋununya ŋu eye mlɔeba la, molecule alilikpowo ƒe ŋutinya ŋu.
c-HCOOH acid si le fafa me nye 6% ko le c-HCOOH isomer me, eye womenya eƒe dzɔtsoƒe haɖe o. Le afisia la, míeɖe c-HCOOH ƒe anyinɔnɔ le molecule ƒe alilikpo dovivitiwo me me to c-HCOOH kple t-HCOOH ƒe tsɔtsrɔ̃ kple wo dzi ɖeɖe kpɔtɔ me le tsatsam siwo me HCOOH kple molecule siwo sɔ gbɔ ŋutɔ abe HCO+ kple NH3 le ene me.
Míezã ab initio mɔnu si keke ta tsɔ bu ŋusẽ ƒe mama si ate ŋu adzɔ na c-HCOOH kple t-HCOOH ƒe gbagbã/kekemɔwo. Wonɔ te ɖe tɔtrɔ ƒe nɔnɔme ŋuti nufiafia kple master equation ƒe nɔnɔme dzi bu xexeame katã ƒe rate constants kple branching factors le ISM nɔnɔme tɔxɛwo me.
HCOOH tsrɔ̃na ne wowɔ ɖeka kple HCO+ le gas ƒe akpaa me tsɔ wɔa HC(OH)2+ cation ƒe isomers etɔ̃. Cations siwo bɔ wu ateŋu awɔ nu kple molecule bubu siwo bɔ le ISM me, abe NH3 ene, le afɔɖeɖe evelia me be woatrɔ c-HCOOH kple t-HCOOH. Mɔnu sia ɖea c-HCOOH ƒe wɔwɔme le molecule ƒe alilikpo dovivitiwo me me. Ne míebu mɔnu sia ŋu la, c-HCOOH ƒe agbɔsɔsɔme ne wotsɔe sɔ kple t-HCOOH nye 25.7%.
Be míaɖe ŋkuléleɖenuŋu ƒe 6% si ŋu woka nya ta le me la, míeɖoe be míabu mɔnu bubu aɖe si dzi woato agblẽ HCOOH cation la ŋu. Sequential acid-base (SAB) mechanism si wodo ɖa le dɔ sia me la lɔ molecule siwo bɔ ŋutɔ le ISM me ƒe dɔwɔwɔ kabakaba ɖe eme.
Eyata anɔ eme be HCOOH ato tɔtrɔ si míedo ɖa la me le molecule ƒe alilikpo doviviti ƒe nɔnɔmewo me. Esia nye mɔnu yeye aɖe le lãmenugbagbeviwo ƒe isomerism me le ISM me, si ateŋu adze agbagba be yeaɖe ƒomedodo siwo le lãmenugbagbeviwo ƒe isomer siwo wokpɔ le ISM me dome la me.
John Garcia, Isascen Jimenez-Serra, Jose Carlos Colchado, Germaine Morpeceres, Antonio Martinez-Henares, Victor M. Rivera, Laura Corzi, Yesu Martin-Painde, kple ame bubuwo
Nyatiwo: Galactic Astrophysics (astro-ph.GA), Chemical Physics (physical.chem-ph) Woyɔe be: arXiv:2301.07450 [astro-ph.GA] (alo gɔmeɖeɖe sia arXiv:2301.07450v1 [astro-ph.GA] ) Degbe ŋutinya si: Juan Garcia de la Concepción [v1] Braɖa 18 January 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Ɣletiviŋutinunya, ɣletiviŋutinunya
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