@article {4121, title = {Photochemistry of 11,12-bis(aminomethyl)-9,10-dihydro-9,10-ethenoanthracene in solution and in the solid state}, journal = {Liebigs Annalen-Recueil}, number = {9}, year = {1997}, note = {ISI Document Delivery No.: XV554Times Cited: 5Cited Reference Count: 19}, month = {Sep}, pages = {1925-1929}, type = {Article}, abstract = {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 semibull-valene 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.}, keywords = {CRYSTALLINE, cyclizations, ethenoanthracenes, PHOTOCHEMISTRY, PYRROLES, solid-state chemistry}, isbn = {0947-3440}, url = {://A1997XV55400017}, author = {Scheffer, J. R. and Ihmels, H.} }