(4) The interesting photochemical properties of acenaphthylene may be found in references in the following papers:(a) WI Ferree, Jr.. 8. F. Plummer, and WW Schloman, Jr.. J. Am. Chem. Soc., 96, 7741 (1974).(b) D. 0. Cowan and J. Koriar, bid.. 88, 1001 (1976).(5) JR Erdman and HE Simmons J. Org. Chem., 33, 3808 (1968).(6) It has not escaped ouir attention that compound 3 offers potential for the storage of solar energy'and we are ...