On the photoluminescence in triarylmethyl-centered mono-, di-, and multiradicals

• Daniel Straub,
• Markus Gross,
• Mona E. Arnold,
• Julia Zolg and
• Alexander J. C. Kuehne

Beilstein J. Org. Chem. 2025, 21, 964–998, doi:10.3762/bjoc.21.80

• unresolved questions that must be addressed to unlock the full potential of trityl-based radicals in advanced technological applications. Keywords: Chichibabin hydrocarbon; COF; Gomberg radical; MOF; Müller hydrocarbon; Thiele hydrocarbon; Introduction Gomberg-type, triarylmethyl-centered radicals

• triphenylmethyl radical [38][39]. In contrast to the Gomberg radical, the perchlorination prevents dimerization through the para-position. Moreover, the chlorine substituents in the ortho-positions twist the phenyl rings into a propeller conformation and out of the sp2-hybridization plane of the central methine