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Title: Molecular mass growth through ring expansion in polycyclic aromatic hydrocarbons via radical–radical reactions

Journal Article · · Nature Communications

Polycyclic aromatic hydrocarbons (PAHs) represent key molecular building blocks leading to carbonaceous nanoparticles identified in combustion systems and extraterrestrial environments. However, the understanding of their formation and growth in these high temperature environments has remained elusive. We present a mechanism through laboratory experiments and computations revealing how the prototype PAH—naphthalene—can be efficiently formed via a rapid 1-indenyl radical—methyl radical reaction. This versatile route converts five- to six-membered rings and provides a detailed view of high temperature mass growth processes that can eventually lead to graphene-type PAHs and two-dimensional nanostructures providing a radical new view about the transformations of carbon in our universe.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Florida International Univ. (FIU), Miami, FL (United States); Univ. of Hawaii at Manoa, Honolulu, HI (United States)
Sponsoring Organization:
USDOE Office of Secretary of Energy (S); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
Grant/Contract Number:
FG02-03ER15411; AC02-05CH11231; FG02-04ER15570
OSTI ID:
1619682
Alternate ID(s):
OSTI ID: 1561947; OSTI ID: 1594727; OSTI ID: 1603225
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 10 Journal Issue: 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United Kingdom
Language:
English
Citation Metrics:
Cited by: 45 works
Citation information provided by
Web of Science

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Figures / Tables (3)