scholarly journals Catalysis by Supported Metal Crystallites from Carbonyl Clusters. I. Catalytic Methanol Synthesis under Mild Conditions over Supported Rhodium, Platinum, and Iridium Crystallites Prepared from Rh, Pt, and Ir Carbonyl Cluster Compounds Deposited on ZnO and MgO

1978 ◽  
Vol 51 (8) ◽  
pp. 2268-2272 ◽  
Author(s):  
Masaru Ichikawa
Keyword(s):  
Methanol Synthesis ◽  
Cluster Compounds ◽  
Carbonyl Cluster ◽  
Carbonyl Clusters ◽  
Mild Conditions ◽  
Supported Metal

Synthesis of bimetallic iron-nickel carbonyl clusters: crystal structure of the iron-nickel carbonyl cluster [N(CH3)3CH2Ph][Fe3Ni(CO)8(.mu.-CO)4(.mu.3-H)]

1984 ◽  
Vol 23 (10) ◽  
pp. 1363-1368 ◽  
Author(s):  
Allesandro Ceriotti ◽  
Paolo Chini ◽  
Allesandro Fumagalli ◽  
Thomas F. Koetzle ◽  
Giuliano Longoni ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Carbonyl Cluster ◽  
Carbonyl Clusters ◽  
Nickel Carbonyl ◽  
Iron Nickel

Supported Metal Carbonyl Clusters: Decomposition to Metals and Reactivity

1979 ◽  
pp. 579-601 ◽  
Author(s):  
R. Ugo ◽  
R. Psaro ◽  
G. M. Zanderighi ◽  
J. M. Basset ◽  
A. Theolier ◽  
...  
Keyword(s):  
Metal Carbonyl ◽  
Carbonyl Clusters ◽  
Metal Carbonyl Clusters ◽  
Supported Metal

Hexaruthenium and octaruthenium carbonyl cluster complexes derived from 2-amino-6-methylpyridine — Novel coordination modes for 2-imidopyridines

2006 ◽  
Vol 84 (2) ◽  
pp. 105-110 ◽  
Author(s):  
Javier A Cabeza ◽  
Ignacio del Río ◽  
Pablo García-Álvarez ◽  
Daniel Miguel
Keyword(s):  
Metal Atom ◽  
Cluster Compounds ◽  
Carbonyl Cluster ◽  
Amido Ligands ◽  
Ruthenium Cluster ◽  
Coordination Type ◽  
Metal Atoms ◽  
Pyridine Nitrogen ◽  
Cluster 2 ◽  
Reflux Temperature

The hexanuclear ruthenium cluster [Ru6(µ3-H)2(µ-H)2(µ4-κ2-ampy)2(CO)14] (1) and the octanuclear one [Ru8(µ-H)(µ4-κ2-ampy)3(µ3-κ2-Hampy)(µ-CO)2(CO)15] (2) have been prepared by treating [Ru6(µ3-H)2(µ5-κ2-ampy)(µ-CO)2(CO)14] with 2-amino-6-methylpyridine (H2ampy) in decane at reflux temperature. Their metal atoms are supported by ligands that derive from the activation of one (complex 2) or both N—H bonds (complexes 1 and 2) of the H2ampy amino fragment. Both contain at least one ampy ligand featuring an unprecedented coordination type: the imido N atom caps a triangle of metal atoms while the pyridine nitrogen is attached to an additional metal atom. One of the ampy ligands of cluster 2 also displays another unprecedented coordination type: it caps a distorted square of metal atoms through the imido N atom while the pyridine nitrogen is attached to one of the atoms included in that square.Key words: ruthenium, cluster compounds, amido ligands, imido ligands.

Ruthenium and Iron Carbonyl Clusters Catalyzed Reduction of N,N-dimethylbenzamide and N,N-diethyl-(3-methyl)benzamide

2011 ◽  
Vol 396-398 ◽  
pp. 2485-2488
Author(s):  
Bao Hua Zhu ◽  
Guo Hua Xu ◽  
Zhi Wei Xia
Keyword(s):  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
Iron Carbonyl ◽  
Carbonyl Cluster ◽  
Carbonyl Clusters ◽  
Excellent Yield ◽  
Ruthenium Carbonyl ◽  
Vis Spectroscopy

One new Ruthenium and one known Iron bimetallic carbonyl clusters containing triphos (1,1,1-tris(diphenylphosphinomethyl)ethane) ligand have been prepared as catalyst to study the reduction of amide to amine. All clusters were characterized by elemental analysis, 1HNMR, 31PNMR and IR spectroscopy. The reduction of N,N-dimethylbenzamide and N,N-diethyl-(3-methyl) benzamide catalyzed by Ru and Fe carbonyl clusters were investigated at 100 ~ 110 °C for 24 ~ 28h, polymethylhydrogensiloxane (PMHS) as reduction agent. The products were analysized using GC-MS, IR and UV-vis spectroscopy and an excellent yield (97%) of N,N-diethyl- (3-methyl)benzamine was obtained when using 3 mol% of bimetallic ruthenium carbonyl cluster as catalyst. The data of IR and UV-vis show that the frameworks of clusters are not changed remarkably during the reaction.

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