Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/87954
Title: A kinetically blocked 1,14:11,12-dibenzopentacene : a persistent triplet diradical of a non-Kekulé polycyclic benzenoid hydrocarbon
Authors: Li, Yuan
Huang, Kuo-Wei
Sun, Zhe
Webster, Richard David
Zeng, Zebing
Zeng, Wangdong
Chi, Chunyan
Ko, Furukawa
Wu, Jishan
Keywords: DRNTU::Science::Chemistry
Benzenoid hydrocarbons
Polycyclic Hydrocarbon
Issue Date: 2014
Source: Li, Y., Huang, K.-W., Sun, Z., Webster, R. D., Zeng, Z., Zeng, W., . . . Wu, J. (2014). A kinetically blocked 1,14:11,12-dibenzopentacene: a persistent triplet diradical of a non-Kekulé polycyclic benzenoid hydrocarbon. Chemical Science, 5(5), 1908-1914. doi:10.1039/c3sc53015a
Series/Report no.: Chemical Science
Abstract: The synthesis of high-spin polycyclic hydrocarbons is very challenging due to their extremely high reactivity. Herein, we report the synthesis and characterization of a kinetically blocked 1,14:11,12-dibenzopentacene, DP-Mes, which represents a rare persistent triplet diradical of a non-Kekulé polycyclic benzenoid hydrocarbon. In contrast to its structural isomer 1,14:7,8-dibenzopentacene (heptazethrene) with a singlet biradical ground state, DP-Mes is a triplet diradical as confirmed by ESR and ESTN measurements and density functional theory calculations. DP-Mes also displays intermolecular antiferromagnetic spin interactions in solution at low temperature.
URI: https://hdl.handle.net/10356/87954
http://hdl.handle.net/10220/45702
ISSN: 2041-6520
DOI: 10.1039/c3sc53015a
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SPMS Journal Articles

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