Emigerageranyo egyetegerezeddwa egya COM isomers mu ISM giwa amawulire ag’omuwendo agakwata ku kemiko ne fizikisi ya ggaasi era, ku nkomerero, ebyafaayo by’ebire bya molekyu.
Ebirimu asidi wa c-HCOOH mu kisengejjo ekinyogovu biri ebitundu 6% byokka ku birimu mu isomera ya c-HCOOH, era ensibuko yaayo temanyiddwa. Wano tunnyonnyola okubeerawo kwa c-HCOOH mu bire bya molekyu enzirugavu nga tusaanyaawo n’okukendeeza kwa c-HCOOH ne t-HCOOH mu biseera by’enzirukanya ezirimu HCOOH ne molekyu nnyingi ennyo nga HCO+ ne NH3.
Twakozesa enkola ya ab initio egaziyiziddwa okubala engabanya y’amasoboza eyinza okubaawo ku makubo g’okumenya/okutambula kwa c-HCOOH ne t-HCOOH. Enkyukakyuka z’omutindo gw’ensi yonna n’ensonga z’amatabi byabalirirwa okusinziira ku ndowooza y’embeera y’enkyukakyuka n’engeri y’ennyingo enkulu wansi w’embeera za ISM eza bulijjo.
HCOOH esaanawo nga ekwatagana ne HCO+ mu kitundu kya ggaasi okukola isomers ssatu eza HC(OH)2+ cation. Cations ezisinga okubeerawo zisobola okukolagana ne molekyo endala eza bulijjo mu ISM, nga NH3, mu mutendera ogwokubiri okukyusa c-HCOOH ne t-HCOOH. Enkola eno ennyonnyola okutondebwa kwa c-HCOOH mu bire bya molekyu enzirugavu. Nga tutwala enkola eno mu nkola, ekitundu kya c-HCOOH okusinziira ku t-HCOOH kyali 25.7%.
Okunnyonnyola ebitundu 6% ebyaloopebwa eby’okwetegereza, tuteesa okulowooza ku nkola endala ey’okusaanyaawo cation ya HCOOH. Enkola ya sequential acid-base (SAB) eteeseddwa mu mulimu guno erimu enkola ey’amangu eya molekyo etera ennyo mu ISM.
N’olwekyo, HCOOH eyolekedde okuyita mu nkyukakyuka gye twateesa wansi w’embeera z’ebire bya molekyu enzirugavu. Eno nkola mpya munda mu isomerism ya molekyo z’ebiramu mu ISM, eyinza okugezaako okunnyonnyola enkolagana wakati wa isomers za molekyo z’ebiramu ezisangibwa mu ISM.
John Garcia, Isascen Jimenez-Serra, Jose Carlos Colchado, Germaine Morpeceres, Antonio Martinez-Henares, Victor M. Rivera, Laura Corzi, Yesu Martin-Painde, abaana abato abazannyira mu ttiimu eno
Ebisomesebwa: Galactic Astrophysics (astro-ph.GA), Chemical Physics (physical.chem-ph) Eyogerwako nga: arXiv:2301.07450 [astro-ph.GA] (oba enkyusa eno arXiv:2301.07450v1 [astro-ph.GA] ) Ebyafaayo by’okukola nga: Juan Garcia de la Concepción [v1] Lwakusatu 18 January 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Eby’obulamu bw’emmunyeenye, eby’obutonde bw’emmunyeenye
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