Photoelectron imaging spectroscopic signatures of CO activation by the heterotrinuclear titanium-nickel clusters

Metal Clusters Based Multifunctional Materials for Solar Cells

“…[59][60] In this arrangement, metal atoms are tightly packed along specific directions and positions, displaying a high degree of regularity and periodicity. This is distinct from amorphous or polycrystalline structures, and the ordered nature of monocrystalline metal clusters imparts exceptional performance in electron transport, [61][62][63] optical properties, [64][65][66] and catalytic activity. [67][68][69] The directional alignment of monocrystalline metal clusters provides them with a unique electronic energy level structure, influencing their conductivity and photoelectric properties.…”

Spectroscopic Signature of the Carbon–Carbon Coupling Reaction between Carbon Monoxide and Nickel Carbide

“…27−33 It is indicated that the coordination mode of heterotrinuclear Ti 2 Ni(CO) n − (n = 6− 9) carbonyls varies with cluster size. 34 The reaction of CO with metal oxides has received increasing attention, such as TMO(CO) n + (TM = Sc, Y, La), TaNiO(CO) n − (n = 5−8), Ni 2 TiO 2 (CO) n − (n = 2−4), 35−43 which provide unique insights into the CO activation by metal oxides.…”

“…In addition, undercoordinated transition metal carbonyl clusters have revealed their bonding and vibrational modes, such as ScCO 0/–/+ , Sc 2 CO, etc. − Very recently, confinement-free neutral group-3 transition metal heptacarbonyl Sc­(CO) 7 and octacarbonyl TM­(CO) 8 (TM = Y and La) have been identified in the gaseous environment . The investigation of bimetallic carbonyls has characterized a series of intriguing species, such as MFe­(CO) 4 – (M = Ti, V, Cr), TMNi­(CO) n – (TM = Ti, Zr, Hf; n = 3–7), Ni 2 (CO) n – ( n = 4–6). − It is indicated that the coordination mode of heterotrinuclear Ti 2 Ni­(CO) n – ( n = 6–9) carbonyls varies with cluster size . The reaction of CO with metal oxides has received increasing attention, such as TMO­(CO) n + (TM = Sc, Y, La), TaNiO­(CO) n – ( n = 5–8), Ni 2 TiO 2 (CO) n – ( n = 2–4), − which provide unique insights into the CO activation by metal oxides.…”

Spectroscopic characterization of heteronuclear iron–chromium carbonyl cluster anions

“…Recently, many hetero-dinuclear metal carbonyl cluster anions and cations have been produced in the gas phase and spectroscopically examined. 26–51 The FeM(CO) 8 + (M = Co, Ni, Cu) clusters were characterized to possess the (CO) 5 Fe–M(CO) 3 structures, and could be viewed as being formed via the interaction of a neutral Fe(CO) 5 fragment with an M(CO) 3 + fragment. 26 The square pyramid Fe(CO) 5 neutral with an 18-electron configuration acted as a two-electron donor in forming an σ-type Fe → M dative single bond.…”