The reaction of Ni(NO3)2\ub76H2O with the thio-modified nucleoside 2\u27-deoxy-6-thioguanosine (d-tG, C10H13N5O3S) in methanol in a 1:1.3 stoichiometric ratiodeposited the title compound, [Ni(d-tG)3](NO3)2\ub72H2O, as green crystals.Despite the <1:3 Ni–ligand ratio used in the synthesis, the deoxy-thioguanosinebinds to form three N7,S6-coordinated five-membered chelate rings with individualNiII ions in mononuclear complexes rather than bridge metal centres intomore extended oligomeric or polymeric structures
