Equilibrium of kedarcidin chromophore core and Bergman-cycloaromatized biradical.
2.
Another classic biradical was synthesised by Tschitschibabin in 1907.
3.
Infrared spectroscopy suggests the electronic structure is a zwitterion rather than a biradical as some had proposed.
4.
Egyptian has many biradical and perhaps monoradical roots, in contrast to the Semitic preference for triradical roots.
5.
It has a triplet ground state consisting of a phenyl anion and a " m "-xylylene biradical.
6.
Photolysis of "'2 "'results in the initial formation of an biradical intermediate with a cyclopropane ring formed.
7.
The reaction proceeds by a thermal reaction or pyrolysis ( above 200 �C ) forming a short-lived and very reactive para-benzyne biradical species.
8.
This photolysis leads to a biradical which forms prismane ( "'6 "') and nitrogen with a yield of less than 10 %.
9.
The formed nucleophile will attack the double bound in the ringstructure from another isophorone, which will form a biradical and finally the HT or HH tricyclic diketomer.
10.
The resonance structures of the quinoid "'3a "'and the biradical "'3b "'contribute equally to the hybrid structure.
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