Affiliation: | a Department of Chemistry and Biotechnology, School of Engineering, The University of Tokyo, Bunkyo-Ku, Tokyo 113-8656, Japanb Department of Chemistry, University of California, Berkeley, CA97420-1460, USAc Institute of Industrial Science, The University of Tokyo, Minato-ku, Tokyo 106, Japand Japan Spectroscopic Co., Ltd., Hachioji, Tokyo 192, Japane Department of Chemistry, Baker Laboratory, Cornell University, Ithaca, New York 14853-1301, U.S.A |