The synthesis, protonation, and Cu2+ coordination chemistry of a tripodal heptaamine ligand (L-1) functionalized with 2-pyridine fragments at the ends of its three branches are reported. L-1 presents six relatively high protonation constants followed by much more reduced constant that as indicated by the UV-vis and NMR data, occur on the pyridine fragments. p[H]-metric, ESI/MS+, EPR and UV-vis data show that L-1 is able to form mono-, di-, and trinuclear Cu2+ complexes. Slippage movements and molecular reorganizations have been observed to occur as a function of p[H] in the 1:1 Cu(2+)complexes. The kinetic studies showed that the complex formation is fast and proceeds through a dissociative Eigen-Wilkins mechanism. The decomposition of CuL1 upon addition of acid excess occurs with two separate kinetic steps; the rate constant for the fast process does not vary with respect to the H+ concentration whereas a linear dependence on H+ is observed for the slow step.