Structural and photoelectron spectroscopic study on the heterotrinuclear nickel–titanium dioxide carbonyl complexes Ni2TiO2(CO)n− (n = 2–4)

The three transition metal atoms in the ground state structures of Ni2TiO2(CO)2–4− form a quasi-line. The extra electron is enriched on O attached to Ti. There has strong interaction between Ti and O.