Thermodynamic stability and structure in aqueous solution of the [Cu(PTA)4]+ complex (PTA = aminophosphine‑1,3,5‑triaza‑7‑phosphaadamantane)

The Cu(I)/aminophosphine‑1,3,5‑triaza‑7‑phosphaadamantane (PTA) system was studied in aqueous solution. X ray absorption data and UV-visible spectrophotometric titrations allowed to determine the structure and stability of [Cu(PTA)n]+ species. Experimental evidences show a remarkable stability of the [Cu(PTA)2]+ species and its tendency to form stable complexes with nitrogen co-ligands.165