Synthesis, characterization and antioxidant activity of new copper(i) complexes of scorpionate and water soluble phosphane ligandsElectronic supplementary information (ESI) available: Fig. A; supramolecular assemblies of hydrogen-bonded carboxylic acid dimers mediated by a intermolecular dihydrogen interaction (B-H?H-C) of {Cu[PPh2(4-C6H4COOH)](Tp4Br)}�(C6H14)0.5: Fig. B; effects of copper(i) complex 1 and of Cu2(aspirinate)4 complex on DNA of rat trachea epithelial cells incubated in the presence of GSNO-MEE.; Fig. C; effects of copper(i) complex 1 and of Cu2(aspirinate)4 complex on DNA of rat trachea epithelial cells incubated in the presence of SIN-1. See http://www.rsc.org/suppdata/dt/b4/b407061e/