96155-56-5Relevant academic research and scientific papers
Simple Photoelimination Reactions for Solid State Photochemical Investigations
Baro, J.,Dudek, D.,Luther, K.,Troe, J.
, p. 167 - 180 (2007/10/02)
Photochemical transformations of two bicyclic dicarbonyl compounds, 1,4,5,6-tetrachloro-7-phenyl-bicyclooct-5-ene-2,3-dione (TPBD) and 9,10-dihydroanthracene-9,10-dicarboxylic anhydride (DADA), were investigated.The bicyclic diketone TPBD isomerizes after irradiation by light of the wavelength 405 nm in a primary step to a compound containing a cyclobutane-1,2-dione unit.This photoisomer can be photobisdecarbonylated subsequently by ligth of the wavelength 509 nm.The photoreaction sequence occurs with high efficiency both in the solid state and in solution.The dicarboxylic anhydride DADA is converted by ultraviolet irradiation to anthracene with simultaneous elimination of carbon dioxide and carbon monoxide.This photoreaction was studied in thin solid films as well as in potassium bromide matrices.These two bicyclic dicarbonyl compounds are well suited for in situ monitoring of photoreactions in the solid state by IR and/or UV/VIS spectroscopy. - Keywords: Photoisomerization / Photodecomposition / Absorption spectroscopy
