Popis: |
TG-DTG-DTA data for various solids of the type Na n {Fe(CN) 5 L}· x H 2 O are reported, L being a pyridinic or pyrazinic derivative. Observed transitions are interpreted and, for the case of neutral L ligands, a correlation is established between ligand release temperature and the energy of the charge transfer t 2 g (Fe)→*π(L) transition of the complex ion. The latter is related to the rate of release of the ligand in aqueous solution, thus demonstrating that the bond-breaking process determines the observed trends in reactivity both in the solid phase and in aqueous solution. |