Ebipimo by’obungi ebireebirwe ebya COM isomers omu ISM nibituha amakuru g’omugasho agarikukwata aha kemikoro n’eby’obuhangwa bya gaasi kandi, aha muheru, ebyafaayo by’ekicu ky’ebicweka.
Ebirimu c-HCOOH acid omu nkora y’obufuki ni 6% zonka z’omubaro gwa c-HCOOH isomer, obukomooko bwayo tiburikumanywa. Aha nitushoboorora okubaho kwa c-HCOOH omu bicu by’ebicweka by’omubiri ebirikwiragura ahabw’okucwekyereza n’okurwanisa okuhangwa kwa c-HCOOH na t-HCOOH omu bwire bw’omuringo gw’okugyendera aha ruguuto orurimu HCOOH n’ebicweka by’omubiri bingi munonga nka HCO+ na NH3.
Twakoresa omuringo gwa ab initio ogw‘omurembe kubara okugabwa kw‘amaani okurikubaasa kubaho omu mihanda y‘okuhenda/okukora kw‘enzindo ya c-HCOOH na t-HCOOH. Ebintu by‘omubaro gw‘ensi yoona n‘enshonga z‘okutaho amataagi bikabarwa kurugiirira aha nteekateeka y‘embeera y‘okuhinduka n‘omuringo gw‘ekibaro ky‘omukuru ahansi y‘embeera za ISM eza butoosha.
Okucwekyerera kwa HCOOH ahabw’okukoragana na HCO+ omu nkora ya gaasi nikureetaho isomers ishatu eza HC(OH)2+ cation. Kationi ezirikukirayo kumanywa nizibaasa kukwatagana n’ebindi bihingwa bya ISM ebirikukirayo kumanywa nka NH3 omu ntambwe ya kabiri kugaruka kukora c-HCOOH na t-HCOOH. Enkora egi neeshoboorora oku c-HCOOH erikubaho omu bicu by’ebicweka by’omubiri ebirikwiragura. Okutwara enkora egi omu nkora, omubaro gwa c-HCOOH kugyeragyeranisa na t-HCOOH gukaba guri 25.7%.
Okushoborora 6% ezireebirwe, nituteekateeka ngu tuteekateekye aha miringo endiijo ey‘okucwekyereza kation ya HCOOH. Enkora ya sequential acid-base (SAB) etebekanisiibwe omu murimo ogu neekwata aha nkora y‘okurahuka ey‘ebicweka by‘omubiri ebirikukira kubaho munonga omu ISM.
Nahabwekyo, HCOOH nebaasa kuraba omu mpinduka ei twateekateekire ahansi y’embeera z’ebicu by’omwirima. Egi n‘enkora nsya omu isomerization y‘ebicweka by‘omubiri omu ISM, erikubaasa kugyezaho kushoboorora enkoragana eri ahagati y‘ebicweka by‘omubiri ebirikushangwa omu ISM.
John Garcia, Isascun Jimenez-Serra, Jose Carlos Corchado, Germaine Molpeceres, Antonio Martinez-Henares, Victor M.
Omushomo: Eby’obuhangwa bw’enyonyoozi (astro-ph.GA), Eby’obuhangwa bw’eby’obuhangwa (physics.chem-ph) Ebihandiikirwe nk’ebi: Okwamwenda 2023 11:45:25 UTC (1909 KB)
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