“…The V m, Cr m, Mn In, Fein and Coin hexaaqua ions, for example, have all been structurally characterized as the alums Cs[M(H20)6](SOa)2.6H20 (Beattie, Best, Skelton & White, 1981), as has that of Ti m (Sygusch, 1974). However, full structural data for only one first-row transition metal ion, Vin (Cotton, Fair, Lewis, Mott, Ross, Schultz & Williams, 1984), and one second-row transition metal ion, Ru m (Bernhard, Btirgi, Hauser, Lehmann & Ludi, 1982), forming [M(H20)6]X3 complexes have been reported. The p-toluenesulfonate anion (pts-) has proved successful in the past in crystallizing hexaaqua ions such as those of Ru n and Ru In (Bernhard et al, 1982), Cu n (Couldwell, Prout, Robey, Taylor & Rossotti, 1978) and Zn n (Hargreaves, 1957).…”