COM isomers nsusuwii a wɔahu wɔ ISM no ma wonya nsɛm a ɛsom bo fa mframa mu nnuruyɛ ne abɔde mu nneɛma ho, na awiei koraa no, molecule mununkum abakɔsɛm ho.
c-HCOOH acid a ɛwɔ awɔw mu no yɛ c-HCOOH isomer no mu 6% pɛ, na wɔda so ara nnim ne mfiase. Ɛha na yɛkyerɛkyerɛ c-HCOOH a ɛwɔ molecule mununkum a ɛyɛ sum mu denam c-HCOOH ne t-HCOOH a wɔsɛe no na wɔtew so wɔ kyinhyia ahorow a ɛfa HCOOH ne molecule a ɛdɔɔso yiye te sɛ HCO+ ne NH3 ho no mu.
Yɛde ab initio kwan a wɔatrɛw mu dii dwuma de buu ahoɔden a ebetumi akyekyɛ ama c-HCOOH ne t-HCOOH a ɛpaapae/kyinhyia akwan no ho akontaa. Wɔgyinaa nsakraeɛ tebea nsusuiɛ ne master equation no su so buu wiase nyinaa rate constants ne branching factors ho akontaa.
HCOOH sɛe bere a ɛne HCO+ di nkitaho wɔ gas fã no mu ma ɛyɛ HC(OH)2+ cation no isomers abiɛsa. Cations a ɛtaa ba no tumi ne molecule afoforo a ɛtaa ba wɔ ISM no mu, te sɛ NH3, yɛ adwuma wɔ anammɔn a ɛto so abien mu de dan c-HCOOH ne t-HCOOH. Saa adwinnade yi kyerɛkyerɛ sɛnea c-HCOOH ba wɔ molecule mununkum a ɛyɛ sum mu no mu. Sɛ yɛhwɛ saa kwan yi a, c-HCOOH fã a ɛwɔ t-HCOOH ho no yɛ 25.7%.
Sɛ yɛbɛkyerɛkyerɛ 6% a wɔabɔ ho amanneɛ no mu a, yɛhyɛ nyansa sɛ yensusuw ɔkwan foforo a wɔbɛfa so asɛe HCOOH cation no ho. Sequential acid-base (SAB) adwinnade a wɔahyɛ ho nyansa wɔ adwuma yi mu no fa molecule ahorow a abu so kɛse wɔ ISM mu no adeyɛ a ɛkɔ ntɛmntɛm ho.
Enti, ɛda adi sɛ HCOOH bɛfa nsakrae a yɛhyɛɛ ho nyansa no mu wɔ molecule mununkum tebea a ɛyɛ sum mu. Eyi yɛ ɔkwan foforo a ɛwɔ isomerism a ɛwɔ organic molecules mu wɔ ISM no mu, a ebia ɛbɛbɔ mmɔden sɛ ɛbɛkyerɛkyerɛ abusuabɔ a ɛda isomers a ɛwɔ organic molecules a wohu wɔ ISM no ntam no mu.
John Garcia, Ezraquen Jimenez-Serra, Jose Carlos Colchado, Germaine Morpeceres, Antonio Martinez-Henares, Nkonimdi M. Rivera, Laura Corzi, Yesu Martin-Painde, na wɔne wɔn ho wɔn ho da hɔ
Nsɛmti: Galactic Astrophysics (astro-ph.GA), Chemical Physics (physical.chem-ph) Wɔafa aka sɛ: arXiv:2301.07450 [astro-ph.GA] (anaasɛ saa nkyerɛase yi arXiv:2301.07450v1 [astro-ph.GA] ) Abakɔsɛm a wɔde mae a: Juan Garcia de la Concepción [v1] Dwoda 18 Ɔbɛnem 2023 11:45:25 UTC (1909 KB) https://arxiv.org/abs/2301.07450 Nsoromma mu abɔde a nkwa wom ho adesua, nsoromma mu hwɛ
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