Cooperative Guanidinium/Proline Orgnocatalytic Systems.- Guanidines as catalysts for direct and indirect CO2 capture and activation.- Triaminoguanidinium Based Ligands in Supramolecular Chemistry.- Guanidine metal complexes for bioinorganic chemistry and polymerisation catalysis.- Redox-active guanidines and guanidinate-substituted diboranes.