Acknowledgment. This work was supported in part by the Energy Research and Development Administration on Con- tract E-(40-1)-3797 and by the Research Committee of The George Washington University. ... References and Notes (1) Taken from the doctoral dissertation of Donald G. Corneil at George Washington University, 1976. (2) Agriculture Research Service, US. Department of Agriculture. (3) See, for example, PJ Kropp In "Organic Photochemistry", 0. L. Chapman ...