[1] Univ Ferrara, Dept Chem Pharmaceut & Agr Sci DOCPAS, Ferrara, Italy
[2] Univ Autonoma Barcelona, Dept Quim, Unitat Quim Inorgan, Barcelona, Spain
[3] Univ Lincoln, Sch Chem, Joseph Banks Labs, Lincoln, England
[4] Ulm Univ, Inst Inorgan Chem 1, Ulm, Germany
[5] Univ Fribourg, Dept Chim, Fribourg, Switzerland