Institution: | (1) Laboratory of Computational Chemistry, University of Geneva, 30 quai Ernest Ansermet, 1211 Geneva 4, Switzerland;(2) National School of Chemistry, 8 rue de l'Ecole Normale, 34075 Montpellier Cedex, France;(3) Institute of Inorganic Chemistry, University of Fribourg, Boulevard de Pérolles, 1700 Fribourg, Switzerland |