1. Department of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106, United States
2. Dipartimento di Chimica e Chimica Industriale, Universitá di Pisa, Via G. Moruzzi 13, 56124 Pisa, Italy
3. Princeton International School of Mathematics and Science, 19 Lambert Drive, Princeton, New Jersey 08540, United States
4. St. George’s School, 4175 W. 29th Avenue, Vancouver, British Columbia V6S 1V1, Canada