Izilinganiso zobuningi ezibonwe zama-isomers e-COM ku-ISM zinikeza ulwazi olubalulekile mayelana ne-chemistry kanye ne-physics yamagesi, futhi ekugcineni, umlando wefu lama-molecule.
Okuqukethwe kwe-c-HCOOH acid enkabeni ebandayo kungu-6% kuphela wenani le-isomer ye-c-HCOOH, okungaziwa ukuthi ivelaphi. Lapha sichaza ukuba khona kwe-c-HCOOH emafwini amnyama amangqamuzana ngokubhujiswa kanye nokulwa nokwakheka kwe-c-HCOOH kanye ne-t-HCOOH ngesikhathi senqubo yokujikeleza ehilela i-HCOOH kanye nama-molecule amaningi kakhulu njenge-HCO+ kanye ne-NH3.
Sisebenzise indlela ethuthukisiwe ye-ab initio ukubala ukusatshalaliswa kwamandla okungenzeka kwezindlela zokuphazamiseka/ukwakheka kwe-c-HCOOH kanye ne-t-HCOOH. Ama-global rate constants kanye nezici zokuhlanganisa zibalwe ngokusekelwe ku-theory yesimo sokuguquka kanye nesimo se-master equation ngaphansi kwezimo ezijwayelekile ze-ISM.
Ukubhujiswa kwe-HCOOH ngokusabela ne-HCO+ esigabeni segesi kuholela kuma-isomers amathathu e-HC(OH)2+ cation. Ama-cation avame kakhulu angasabela namanye ama-molecule e-ISM ajwayelekile njenge-NH3 esinyathelweni sesibili ukuze abuyele ku-c-HCOOH kanye ne-t-HCOOH. Le ndlela ichaza ukwakheka kwe-c-HCOOH emafwini amnyama ama-molecule. Uma sibheka le ndlela, isilinganiso se-c-HCOOH uma siqhathaniswa ne-t-HCOOH sasingu-25.7%.
Ukuze sichaze u-6% obonwe, siphakamisa ukuthi kucatshangelwe izindlela ezengeziwe zokubhujiswa kwe-cation ye-HCOOH. Indlela yokusebenza ye-acid-base (SAB) elandelanayo ephakanyisiwe kulo msebenzi ihilela inqubo esheshayo yama-molecule avame kakhulu ku-ISM.
Ngakho-ke, i-HCOOH cishe izodlula kuguquko esiluphakamisile ngaphansi kwezimo zamafu amnyama ama-molecule. Lena indlela entsha ngaphakathi kwe-isomerization yama-molecule e-organic ku-ISM, okungenzeka izama ukuchaza ubudlelwano phakathi kwama-isomers ama-molecule e-organic atholakala ku-ISM.
John Garcia, Isascun Jimenez-Serra, Jose Carlos Corchado, Germaine Molpeceres, Antonio Martinez-Henares, Victor M. Rivilla, Laura Colzi, Jesus Martin-Painted
Isihloko: I-Galactic Astrophysics (i-astro-ph.GA), I-Chemical Physics (i-physics.chem-ph) Icashunwe kanje: arXiv:2301.07450 [i-astro-ph.GA] (noma le nguqulo arXiv:2301.07450v1 [i-astro-ph.GA] ) Umlando wokuzibophezela ngu: Juan Garcia de la Concepción [v1] ULwesithathu mhla ziyi-18 kuMasingana 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 I-Astrobiology, i-astrochemistry
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