1. Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The
Netherlands
2. Department
of Chemistry, Faculty
of Science, Al-Balqa’ Applied University, Salt 19117, Jordan
3. Instituto
de Fisica Fundamental
(IFF-CSIC), CSIC, Serrano 123, 28006 Madrid,
Spain
4. SINTEF Materials and Chemistry, P.O. Box 124 Blindern, N-0314 Oslo, Norway
5. Department of Physics, University of Oslo, Gaustadalléen 21, N-0318
Oslo, Norway