Send to

Choose Destination
See comment in PubMed Commons below
Science. 2009 Jan 23;323(5913):492-5. doi: 10.1126/science.1165884.

Complementary active sites cause size-selective reactivity of aluminum cluster anions with water.

Author information

  • 1Departments of Chemistry and Physics, Pennsylvania State University, University Park, PA 16802, USA.


The reactions of metal clusters with small molecules often depend on cluster size. The selectivity of oxygen reactions with aluminum cluster anions can be well described within an electronic shell model; however, not all reactions are subject to the same fundamental constraints. We observed the size selectivity of aluminum cluster anion reactions with water, which can be attributed to the dissociative chemisorption of water at specific surface sites. The reactivity depends on geometric rather than electronic shell structure. Identical arrangements of multiple active sites in Al16-, Al17-, and Al18- result in the production of H2 from water.

Free full text
PubMed Commons home

PubMed Commons

How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for HighWire
    Loading ...
    Support Center