Acknowledgment. We thank the Department of Sci- ence and Technology, Government of India, Indian In- stitute of Technology, Kanpur, and the Office of Basic Energy Sciences of the US Department of Energy for fi- nancial support of this work. ... (46) (a) Dae, P. K.; Encinas, M. V.; Small, R. D., Jr.; Scaiano, JCJ Am. Chem. SOC. 1979,101,6965-6970. (b) Das, P. K.; Bobrowski, KJ Chem. SOC., Faraday Trans. 2 1981,77,1009-1027. (c) Chattopadhyay, S. ...