@article{oai:kansai-u.repo.nii.ac.jp:00011499, author = {Janet, L Scott and Tanaka, Koichi and Tomomori, Akihiro}, issue = {5}, journal = {CrystEngComm}, month = {May}, note = {2-[2,7-Dibromo-9-(3-oxo-3-phenyl-prop-1-ynyl)-9H-fluoren-9-yl]-3-fluoren-9-ylidene-1-phenyl-propenone (1) shows photochromism from pale yellow to green in the solid state, whereas 3-(2,7-dibromo-fluoren-9-ylidene)-2-[9-(3-oxo-3-phenyl-prop-1-ynyl)-9H-fluoren-9-yl]-1-phenyl-propenone (2) does not show any photochromism.}, pages = {147--149}, title = {Novel photochromism of propargylallene in the solid state}, volume = {2003}, year = {2003} }