Absence of intersystem crossing in 1,4-didehydrobenzene
Lott, William B., Evans, Tom J., & Grissom, Charles B. (1994) Absence of intersystem crossing in 1,4-didehydrobenzene. Journal of the Chemical Society, Perkin Transactions 2, p. 2583.
The rate of singlet-to-triplet intersystem crossing in 1,4-didehydrobenzene (the biradical produced as a reactive intermediate in the thermal cycloaromatization of enediynes), cannot be increased by the application of an external magnetic field. The rate of product formation and the distribution of stable products of 2,3-di-n-propyl-1,4-didehydrobenzene thermolysis is unchanged at magnetic flux densities in the range 0–2000 G and at 66 000 G. Similarly, the rate of thermolysis of an unsymmetrical enediyne is insensitive to magnetic field flux in the same range. This finding precludes the modulation of enediyne reaction rates in pharmaceutical and synthetic pursuits.
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|Item Type:||Journal Article|
|ISSN:||1364-5471 (online) 1472-779X (print)|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 1994 Royal Society of Chemistry|
|Copyright Statement:||Author can archive publisher's version/PDF Author's version on institutional repository after 12 months from acceptance or immediately with fee|
|Deposited On:||25 Jul 2012 23:06|
|Last Modified:||26 Jul 2012 03:01|
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