Syntheses and photocatalytic CO2 reduction properties of heterometallic Ni/Sn and Co/Sn oxo clusters
【无机化学学报】doi: 10.11862/CJIC.20250353
In this work, by using diphenylphosphonic acid as ligand and butyltin hydroxide oxide as tin source, reacting with nickel acetate and cobalt acetate respectively, two hexanuclear tin oxo clusters formulated as [(n-BuSn)4 Ni2(μ3-O)2(μ3-OH)2(CH3COO)4(Ph2PO2)6] (1) and [(n-BuSn)4Co2(μ3-O)2(μ3-OH)2(CH3COO)4(Ph2PO2)6] (2) were solvothermally synthesized. Both 1 and 2 were characterized by infrared spectroscopy, elemental analysis, and single-crystal X-ray diffraction. Spectral experiments revealed that the two complexes have absorptions in the visible region. The optical band gaps for complexes 1 and 2 are 1.90 and 1.79 eV, respectively. Complexes 1 and 2 exhibited photocatalytic CO2 reduction activity, and only CO was generated, with rates of 10.01 and 26.89 μmol·g-1·h-1, respectively. CCDC: 2505024, 1; 2505025, 2.
