Clusters: A bridge across the disciplines of environment, materials science, and biology
- *Departments of Chemistry and Physics, Pennsylvania State University, University Park, PA 16802; and
- ‡Department of Physics, Virginia Commonwealth University, Richmond, VA 23284
-
Edited by Jack Halpern, University of Chicago, Chicago, IL, and approved April 28, 2006 (received for review March 3, 2006)
-
Fig. 1.Structure of the Si12W cluster. The W atom is sandwiched between two planar Si6 clusters.
-
Fig. 2.Ionization potentials for the Ti8-xZrxC12 (x = 0–4, 8) clusters (61). [Reproduced with permission from ref. 61 (Copyright 1998, American Chemical Society).]
-
Fig. 3.Mass spectra of Al cluster anions (A) reacted with I2 vapor (B) and etched with O2 (C). Peaks shaded green fall into the Al13Ix − family, whereas peaks shaded blue fall into the Al14Ix − family (64). In A–C, the y-axis is peak intensity (in arbitrary units). [Reproduced with permission from ref. 64 (Copyright 2005, AAAS, www.sciencemag.org).]
-
Fig. 4.Boron-containing BNCT agents. (a) 5-carboanyluracil. (b) Porphyrin-based polyhedral borane. [Reproduced from ref. 75 with permission of A. H. Soloway (Copyright 1998, American Chemical Society).]
Footnotes
- †To whom correspondence may be addressed. E-mail: pjena{at}vcu.edu or awc{at}psu.edu
- © 2006 by The National Academy of Sciences of the USA
