S1 Ammonia borane and hydrazine bis(borane) dehydrogenation mediated by an unsymmetrical (PNN) ruthenium pincer hydride: metal-ligand cooperation for hydrogen production Lapo Luconi, a Umit B. Demirci, b Maurizio Peruzzini, a Giuliano Giambastiani, a,c, * and Andrea Rossin a * a Istituto di Chimica dei Composti Organometallici – Consiglio Nazionale delle Ricerche (ICCOM - CNR), Via Madonna del Piano 10, 50019, Sesto Fiorentino, Italy. b Institut Européen des Membranes, IEM – UMR 5635, ENSCM, CNRS, Univ. Montpellier, Montpellier, France c Institute of Chemistry and Processes for Energy, Environment and Health (ICPEES), UMR 7515 CNRS- University of Strasbourg (UdS), 25, rue Becquerel, 67087 Strasbourg Cedex 02, France. Supporting Information Electronic Supplementary Material (ESI) for Sustainable Energy & Fuels. This journal is © The Royal Society of Chemistry 2019