A Mixed-Valence Tetranuclear Copper Cluster with Localized Valencies

Petra J. van Koningsbruggen¹, Jaap G. Haasnoot, Huub Kooijman+2

• ¹Gorlaeus Laboratories, Leiden Institute of Chemistry, Leiden University, P.O. Box 9502, 2300 RA Leiden, The Netherlands, and Bijvoet Center for Biomolecular Research, Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands.