Synthesis, crystal structure and properties of a new lanthanide‐transition metal carbonyl cluster

Abstract

A new type heterobimetallic complex containing lanthanide and transition metal carbonyl cluster (Ln-M carbonyl cluster), Sm 2 {OOCCCo 3 (CO) 9 } 2 {OOCCF 3 } 4 {(CO) 9 Co 3 CCOOH} 4 , has been synthesized by reaction of (CO) 9 Co 3 CCOOH with Sm(OOCCF 3 ) 3 (H 2 O) 2 , and structurally characterized by single-crystal X-ray diffraction. Application of the complex as a catalyst precursor for hydrogenation of carbon monoxide (Fischer-Tropsch reaction) was explored, and the thermogravimetric behavior and magnetic properties of the compound were examined as well.

Octacoordinate Metal Carbonyls of Lanthanum and Cerium: Experimental Observation and Theoretical Calculation

“…In most of their complexes, the lanthanide elements tend to be trivalent and bond with electronegative atoms, such as O, N, and Cl . In the solid network structures containing lanthanide metals and a CO constituent, lanthanide atoms prefer to coordinate with the O atom. − The metal carbon coordination were usually identified in the unsaturated lanthanide carbonyls trapped in solid matrix. − In this work, we reported the observation of La(CO) 8 + and Ce(CO) 8 + generated in gas phase. The mass spectra, the theoretical calculations, and the infrared dissociation spectra indicate that eight CO ligands in each case chemically bond with the central metal atom through the metal carbon coordination.…”

Cobalt Carbonyl Cluster as Catalyst Precursor for Fischer-Tropsch Synthesis

“…The preparation of the catalyst containing 10 wt% Co by impregnation using cobalt nitrate as precursor, which was labeled as Co(N)/γ-Al 2 O 3 , has been described in our previous publication [13]. The catalyst prepared by cobalt carbonyl cluster was labeled as Co(CO)/γ-Al 2 O 3 (10 wt% Co).…”