1. Department of Chemistry, University of Colorado, Boulder, Colorado 80309, USA
2. National Renewable Energy Laboratory, Golden, Colorado 80401, USA
3. Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, 16610 Prague 6, Czech Republic
4. University of Chemistry and Technology Prague, Technická 5, 16628 Prague 6, Czech Republic
5. Zernike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
6. Stratingh Institute for Chemistry, University of Groningen, 9747 AG Groningen, The Netherlands
7. Advanced Light Source, Lawrence Berkeley National Lab, 1 Cyclotron Rd., Berkeley, California 94720, USA
8. Chemistry Department, Brookhaven National Laboratory, Upton, New York 11973, USA