Effect of ligation and cluster size on the reactivity of metal clusters: reactions of Re/sub n/(CO)/sub m//sup +/ with cyclohexane
Gas-phase reactions between cyclohexane and Re/sub n/(CO)/sub m//sup +/ (n = 3, m = 7-13 and n = 4, m = 8-16) were characterized by ion cyclotron resonance techniques. The reactant cluster ions were formed by reaction between Re/sub 2/(CO)/sub 10/ and its electron impact produced fragments. Reactions of the clusters with cyclohexane produced species of the type Re/sub n/C/sub 6/H/sub 2(6-x)/(CO)/sub (m-y)//sup +/ corresponding to loss of x molecules of H/sub 2/ and y molecules of CO from a complex of the reactants. Reactions were observed for only the most coordinatively unsaturated clusters (m < 10 for n = 3 and m < 12 for n = 4). H/sub 2/ yield also tended to increase with coordinative unsaturation. The results are discussed in terms of a mechanism involving oxidative addition of a C-H bond to a cluster metal atom
- Research Organization:
- Northeastern Univ., Boston, MA (USA)
- OSTI ID:
- 5249510
- Journal Information:
- J. Phys. Chem.; (United States), Vol. 91:26
- Country of Publication:
- United States
- Language:
- English
Similar Records
Photocalorimetry. 5. Enthalpies of reaction of M/sub 2/(CO)/sub 10/ (M = Mn, Re) compounds with iodine in cyclohexane solution at 25 /sup 0/C
[Ru{sub 3}(CO){sub 9}({mu}{sub 3}-S)]{sup 2{minus}} as a ligand toward [M(CO){sub 3}(NCCH{sub 3})]{sup +}: Synthesis and characterization of HRu{sub 3}(CO){sub 9}({mu}{sub 4}-S)M(CO){sub 3}(NCCH{sub 3}){sub 2} (M = Mn, Re)
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
38 RADIATION CHEMISTRY, RADIOCHEMISTRY, AND NUCLEAR CHEMISTRY
CARBONYLS
CHEMICAL REACTIONS
RADIOLYSIS
CYCLOHEXANE
RHENIUM COMPOUNDS
CATIONS
ELECTRON BEAMS
EXPERIMENTAL DATA
MASS SPECTROSCOPY
ALKANES
BEAMS
CHARGED PARTICLES
CHEMICAL RADIATION EFFECTS
CHEMISTRY
CYCLOALKANES
DATA
DECOMPOSITION
HYDROCARBONS
INFORMATION
IONS
LEPTON BEAMS
NUMERICAL DATA
ORGANIC COMPOUNDS
PARTICLE BEAMS
RADIATION CHEMISTRY
RADIATION EFFECTS
REFRACTORY METAL COMPOUNDS
SPECTROSCOPY
TRANSITION ELEMENT COMPOUNDS
400201* - Chemical & Physicochemical Properties
400600 - Radiation Chemistry