Direct evidence for a single-step radiation-induced assembling of benzene ring from acetylene trimer at cryogenic temperatures

Lukianova M.A., Feldman V.I.
Тип документаJournal Article
Дата публикации2021-06-01
Название журналаRadiation Physics and Chemistry
  • Radiation
Краткое описание
Abstract The discovery of carbon-rich species, including polycyclic aromatic hydrocarbons (PAH) and fullerenes, in the space environment is among the most intriguing findings in molecular astrophysics and astrochemistry of the recent decades. The mechanism of their formation remains unclear and the one of the key issues is related to making “first ring”, i.e., formation of benzene from simple small molecules abundant in the outer space. Different routes involving C2, C3 and C4 hydrocarbons are considered in literature. Here we report the first direct evidence for a single-step radiation-induced formation of benzene from pre-existing isolated acetylene trimer occurring in frozen inert environment at very low temperature (6 K). The finding is based on the correlation between trimer decay and build-up of benzene as monitored by FTIR spectroscopy. This concerted pathway may be applicable to acetylene aggregates trapped in the bulky ices or in the grain pores and it emphasizes the importance of concept of molecular organization in the chemical history of the Universe.
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1. Lukianova M.A., Feldman V.I. Direct evidence for a single-step radiation-induced assembling of benzene ring from acetylene trimer at cryogenic temperatures // Radiation Physics and Chemistry. 2021. Т. 183. С. 109417.


DO - 10.1016/j.radphyschem.2021.109417

UR -

TI - Direct evidence for a single-step radiation-induced assembling of benzene ring from acetylene trimer at cryogenic temperatures

T2 - Radiation Physics and Chemistry

AU - Lukianova, Mariia A.

AU - Feldman, Vladimir I.

PY - 2021

DA - 2021/06

PB - Elsevier BV

SP - 109417

VL - 183

SN - 0969-806X

ER -

BibTex |


doi = {10.1016/j.radphyschem.2021.109417},

url = {},

year = 2021,

month = {jun},

publisher = {Elsevier {BV}},

volume = {183},

pages = {109417},

author = {Mariia A. Lukianova and Vladimir I. Feldman},

title = {Direct evidence for a single-step radiation-induced assembling of benzene ring from acetylene trimer at cryogenic temperatures}


Lukianova, Mariia A., and Vladimir I. Feldman. “Direct Evidence for a Single-Step Radiation-Induced Assembling of Benzene Ring from Acetylene Trimer at Cryogenic Temperatures.” Radiation Physics and Chemistry 183 (2021): 109417. Crossref. Web.