“…For a comprehensive review of the mechanism of action accessible to metal complexes, the reader is referred to a recent review by Boros et al 170 . 281 , manganese 176 , iron 282 , cobalt 283 , copper 284 , zinc 177 , gallium 90 , ruthenium 177 , rhodium 285 , palladium 286 , silver 287 , tungsten 288 , rhenium 289 , osmium 290 , iridium 291 , platinum 292 or gold 293 .…”