Synthesis, catalytic properties and biological activity of new water soluble ruthenium cyclopentadienyl PTA complexes [(C5R5)RuCl(PTA)2] (R = H, Me; PTA = 1,3,5-triaza-7-phosphaadamantane)Electronic supplementary information (ESI) available: synthesis, 31P{1H}, 1H, 13C NMR characterisation and elemental analysis of 1 and 2. See http://www.rsc.org/suppdata/cc/b2/b210102e/ | doi.page