Photochemistry of 11,12‐bis(Aminomethyl)‐9,10‐dihydro‐9,10‐ethenoanthracene in Solution and in the Solid State | Zendy

Scheffer John R. | Zendy; Ihmels Heiko | Zendy

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Photochemistry of 11,12‐bis(Aminomethyl)‐9,10‐dihydro‐9,10‐ethenoanthracene in Solution and in the Solid State

Author(s) -

Scheffer John R.,

Ihmels Heiko

Publication year - 1997

Publication title -

liebigs annalen

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.825

H-Index - 155

eISSN - 1099-0690

pISSN - 0947-3440

DOI - 10.1002/jlac.199719970919

Subject(s) - chemistry , solid state , photochemistry , steric effects , singlet state , photodissociation , irradiation , derivative (finance) , salt (chemistry) , triplet state , pyrrole , organic chemistry , molecule , excited state , nuclear physics , financial economics , economics , physics

The photochemistry of 11,12‐bis(aminomethyl)‐9,10‐dihydro‐9,10‐ethenoanthracene ( 4 ) was investigated in solution and in the solid state. Direct irradiation of 4 gave the singlet state photoproduct 5 , whereas the triplet derived photoproduct could only be obtained by irradiating the bis(hydrochloride) salt of 4 in the presence of xanthen‐9‐one to give semibullvalene 6‐(HCl) 2 . Solid state photolysis of 4 resulted in the formation of the pyrrole derivative 7 , which is likely due to steric interactions in the solid state.

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