Bis{P,P'-1,5-diphenyl-3,7-bis[(4-hydrogenphosphonate)phenyl]-1,5,3,7-diazadiphosphocine} nickel(II) bromide (hydrogen bromide adduct)

Technical Note:
1.Synthetic nickel catalyst us ed for photocatalytic reduction of aqueous protons to hydrogen.
2.Catalyst containing phos phonate anchor groups for immobilation on metal oxide semiconductor surfaces, enabling light-driven hydrogen evolution.
References:
1. Angew. Chem. Int. Ed., 2014, 53, 11538. 2. J. Amer. Chem. Soc., 2014, 136, 356.