1. School
of Chemistry, The University of Manchester, Oxford Road, Manchester M13 9PL, United Kingdom
2. Institute
of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo n. 2, 166 10 Prague 6, Czech Republic
3. Department
of Inorganic Chemistry, Charles University, Hlavova 2030/8, 128 43 Prague 2, Czech Republic
4. Department
of Chemistry, University of Leuven, Celestijnenlaan 200 D, B-3001, Leuven, Belgium
5. Molecular
Materials Research Center, Beckman Institute, MC 139-74, California Institute of Technology, 1200 East California Boulevard, Pasadena, California 91125, United States