Likarolelano tse bonoang tsa li-isomer tsa COM ho ISM li fana ka tlhaiso-leseling ea bohlokoa mabapi le k'hemistri le fisiks ea likhase, 'me qetellong, nalane ea maru a limolek'hule.
Dikahare tsa asiti ya c-HCOOH ka hara kokwana-hloko e batang ke 6% feela ya dikahare tsa isomer ya c-HCOOH, mme tshimoloho ya yona ha e tsejwe. Mona re hlalosa boteng ba c-HCOOH marung a lefifi a dimolek'hule ka ho senngwa le ho fokotswa ha c-HCOOH le t-HCOOH nakong ya dipotoloho tse kenyeletsang HCOOH le dimolek'hule tse ngata haholo tse kang HCO+ le NH3.
Re sebelisitse mokhoa o atolositsoeng oa ab initio ho bala kabo ea matla e ka bang teng bakeng sa litsela tsa c-HCOOH le t-HCOOH tsa ho senyeha/ho potoloha. Li-constant tsa sekhahla sa lefats'e le lintlha tsa makala li baliloe ho latela khopolo-taba ea boemo ba phetoho le sebopeho sa equation e kholo tlas'a maemo a tloaelehileng a ISM.
HCOOH e senngoa ha e sebelisana le HCO+ karolong ea khase ho etsa li-isomer tse tharo tsa cation ea HC(OH)2+. Li-cation tse tloaelehileng haholo li ka arabela le limolek'hule tse ling tse tloaelehileng ho ISM, joalo ka NH3, mohatong oa bobeli oa ho fetola c-HCOOH le t-HCOOH. Mokhoa ona o hlalosa ho thehoa ha c-HCOOH marung a lefifi a limolek'hule. Ha ho nahanoa ka mokhoa ona, karolo ea c-HCOOH ha e bapisoa le t-HCOOH e ne e le 25.7%.
Ho hlalosa 6% ea lintho tse tlalehiloeng, re sisinya ho nahana ka mokhoa o mong oa ho senya cation ea HCOOH. Mokhoa oa sequential acid-base (SAB) o hlahisitsoeng mosebetsing ona o kenyelletsa ts'ebetso e potlakileng ea limolek'hule tse tloaelehileng haholo ho ISM.
Ka hona, HCOOH ho ka etsahala hore e fete phetohong eo re e sisintseng tlas'a maemo a leru le lefifi la limolek'hule. Ena ke mokhoa o mocha ka har'a isomerism ea limolek'hule tsa lintho tse phelang ho ISM, o ka lekang ho hlalosa likamano lipakeng tsa li-isomer tsa limolek'hule tsa lintho tse phelang tse fumanehang ho ISM.
John Garcia, Ezraquen Jimenez-Serra, Jose Carlos Colchado, Germaine Morpeceres, Antonio Martinez-Henares, Victor M. Rivera, Laura Corzi, Jesus Martin-Painde
Lihlooho: Galactic Astrophysics (astro-ph.GA), Khemikhale Fisiks (physical.chem-ph) E qotsitsoe e le: arXiv:2301.07450 [astro-ph.GA] (kapa mofuta ona arXiv:2301.07450v1 [astro-ph.GA] ) Nalane ea boitlamo ke: Juan Garcia de la Concepción [v1] Laboraro la 18 Pherekhong 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Astrobiology, astrochemistry
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