Organometallic pnicogen complexes. VII. Synthesis, structure and bonding of the cubane-like metal cluster tetra-.mu.3-phosphido-tetra-.pi.-pentahaptocyclopentadienyl tetracobalt(III) [Co4(h5-C5H5)4P4]. First reported organometallic complex containing a naked phosphorus atom as a ligand

1973 ◽  
Vol 95 (7) ◽  
pp. 2175-2183 ◽  
Author(s):  
Gary L. Simon ◽  
Lawrence F. Dahl
Keyword(s):  
Phosphorus Atom ◽  
Metal Cluster ◽  
Organometallic Complex ◽  
Structure And Bonding

First-principles calculations of the electronic structure and bonding in metal cluster–fullerene materials considered within the superatomic framework

2016 ◽  
Vol 18 (47) ◽  
pp. 32541-32550 ◽  
Author(s):  
Lukas Hammerschmidt ◽  
Julia Schacht ◽  
Nicola Gaston
Keyword(s):  
Electronic Structure ◽  
First Principles ◽  
Metal Cluster ◽  
First Principles Calculations ◽  
Structure And Bonding

Inspired by recent experiments, we address the question to what extent the three materials [Co6Se8(PEt3)6][C60]2, [Cr6Se8(PEt3)6][C60]2, and [Ni9Te6(PEt3)8]C60, upon forming compounds, imitate atomic analogues.

Electronic structure and bonding of the metal cluster compound Au55(PPh3)12Cl6

1993 ◽  
Vol 26 (1-4) ◽  
pp. 162-165 ◽  
Author(s):  
Roger C. Thiel ◽  
Robert E. Benfield ◽  
Roberto Zanoni ◽  
Huub H. A. Smit ◽  
Mark W. Dirken
Keyword(s):  
Electronic Structure ◽  
Metal Cluster ◽  
Cluster Compound ◽  
Structure And Bonding

Structure and bonding in [M6X8] units of nonmetallic transition metal cluster compounds

1987 ◽  
Vol 70 (1) ◽  
pp. 29-35 ◽  
Author(s):  
W. Bronger ◽  
J. Fleischhauer ◽  
H. Marzi ◽  
G. Raabe ◽  
W. Schleker ◽  
...  
Keyword(s):  
Transition Metal ◽  
Metal Cluster ◽  
Cluster Compounds ◽  
Transition Metal Cluster ◽  
Structure And Bonding

Digital x-ray mapping of nanometer-size supported bimetallic catalysts

1988 ◽  
Vol 46 ◽  
pp. 530-531
Author(s):  
L. T. Germinario
Keyword(s):  
Background Radiation ◽  
Metal Cluster ◽  
Single Element ◽  
Beam Diameter ◽  
X Rays ◽  
X Ray ◽  
Major Interest ◽  
Induced Changes

Understanding the role of metal cluster composition in determining catalytic selectivity and activity is of major interest in heterogeneous catalysis. The electron microscope is well established as a powerful tool for ultrastructural and compositional characterization of support and catalyst. Because the spatial resolution of x-ray microanalysis is defined by the smallest beam diameter into which the required number of electrons can be focused, the dedicated STEM with FEG is the instrument of choice. The main sources of errors in energy dispersive x-ray analysis (EDS) are: (1) beam-induced changes in specimen composition, (2) specimen drift, (3) instrumental factors which produce background radiation, and (4) basic statistical limitations which result in the detection of a finite number of x-ray photons. Digital beam techniques have been described for supported single-element metal clusters with spatial resolutions of about 10 nm. However, the detection of spurious characteristic x-rays away from catalyst particles produced images requiring several image processing steps.

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