Stability of Pt(II)-based H2-evolving catalysts against H2 in aqueous solution

To answer the question of whether Pt(II)-based H(2)-evolving catalysts are stable upon exposure to H(2), the behaviours of some platinum(II) complexes in the presence of H(2) (5 × 10(-4) - 1 atm) have been followed spectrophotometrically. The results reveal that some catalysts are highly stable upon exposure to H(2).