Hydrogen-mediated Stone-Wales isomerization of dicyclopenta[de,mn]anthracene.

Abstract:

:The mechanism of transformation of two radicals (R1p and R1i) obtained by addition of a hydrogen atom to an external and internal carbon atom of dicyclopenta[de,mn]anthracene (P1) was investigated. Two pathways were revealed. The first mechanism is a one-step process, whereas the second mechanism includes two transition states and a cyclobutyl intermediate. The formation of R1p and R1i and the homolytic cleavage of the radicals obtained during the isomerization processes were also examined. In both pathways the addition of a hydrogen atom to the internal carbon significantly lowers the activation energy for hydrogen-mediated isomerization of P1 to acefluoranthene. This finding could be explained by the specific electronic structures of the transition states and intermediates participating in the isomerization processes.

journal_name

J Mol Model

authors

Stanković S,Marković S,Gutman I,Sretenović S

doi

10.1007/s00894-010-0669-9

subject

Has Abstract

pub_date

2010-09-01 00:00:00

pages

1519-27

issue

9

eissn

1610-2940

issn

0948-5023

journal_volume

16

pub_type

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