S1 Electronic Supporting Information (ESI) for: Isolation and characterization of unusual multinuclear Schiff base complexes: Rearrangements reactions and octanuclear cluster formation Marta Martínez Belmonte, a Eduardo C. Escudero-Adán, a Eddy Martin, a and Arjan W. Kleij* a,b a Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, 43007, Tarragona, Spain. E-mail: akleij@iciq.es ; Fax: +34 977920224; Tel: +34 977920247 & b Catalan Institute for Research and Advanced Studies (ICREA), Pg. Llu´ıs Companys 23, 08010, Barcelona, Spain Contents: Page S2: Copies of NMR and MS spectra for compounds 1-11. Page S33: NMR conversion of 1 into 4 in DMSO-d 6 at 130ºC. Page S34: Comparison of 1 H NMR traces for the conversion of 12. Page S35: Comparison of 1 H NMR traces for the conversion of 37. Page S36: Comparison of 1 H NMR traces for the conversion of 48. Electronic Supplementary Material (ESI) for Dalton Transactions This journal is © The Royal Society of Chemistry 2012