Metal Interactions with Boron Clusters

1. Front Matter

   Pages i-xiv

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2. Structural and Bonding Features of Metallaboranes and Metallacarboranes

   • Marion E. O’Neill, Kenneth Wade

   Pages 1-41

3. Transition-Metal Derivatives of Nido-Boranes and Some Related Species

   • Norman N. Greenwood, John D. Kennedy

   Pages 43-118

4. Interactions of Metal Groups with the Octahydrotriborate(1−) Anion, B3H8-

   • Donald F. Gaines, Steven J. Hildebrandt

   Pages 119-143

5. Metallaboron Cage Compounds of the Main Group Metals

   • Lee J. Todd

   Pages 145-171

6. closo-Carborane-Metal Complexes Containing Metal-Carbon and Metal-Boron σ-Bonds

   • Silvano Bresadola

   Pages 173-237

7. Electrochemistry of Metallaboron Cage Compounds

   • William E. Geiger Jr.

   Pages 239-268

8. Boron Clusters with Transition Metal-Hydrogen Bonds

   • Russell N. Grimes

   Pages 269-319

9. Back Matter

   Pages 321-327

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Molecular clusters, in the broad sense that the term is commonly understood, today comprise an enormous class of species extending into virtually every important area of chemistry: "naked" metal clusters, transition metal carbonyl clusters, hydrocarbon cages such as cubane (C H ) and dodecahedrane (C H ), 8 8 20 20 organometallic cluster complexes, enzymes containing Fe S or MoFe S 4 4 3 4 cores, high polymers based on carborane units, and, of course, the many kinds of polyhedral borane species. So large is the area spanned by these diverse classes that any attempt to deal with them comprehensively in one volume would, to say the least, be ambitious-and also premature. We are presently at a stage where intriguing relationships between the various cluster families are becoming apparent (particularly in terms of bonding descriptions), and despite large dif­ ferences in their chemistry an underlying unity is gradually developing in the field. For example, structural changes occurring in Fe S cores as electrons are 4 4 pumped in and out, in some measure resemble those observed in boranes and carboranes. The cleavage of alkynes via incorporation into carborane cages and subsequent cage rearrangement, a sequence familiar to boron chemists, is a thermodynamically favored process which may be related to the behavior of unsaturated hydrocarbons on metal surfaces; analogies of this sort have drawn attention from theorists and experimentalists.

• boron
• electrochemistry
• metals
• polymer
• transition metal

• Department of Chemistry, University of Virginia, Charlottesville, USA

  Russell N. Grimes

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