1. Department
of Chemistry - BMC, Uppsala University, Husargatan 3, Box
576, SE-751 23, Uppsala, Sweden
2. Departament
de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcelli Domingo, s/n, 43007, Tarragona, Spain
3. Department
of Organic Chemistry, Stockholm University Arrhenius Laboratory, SE-106
91, Stockholm, Sweden
4. School
of Chemistry, University of KwaZulu-Natal, University Road, Westville, Durban 4041, South Africa