A.B., Hamilton College (1960)
Ph.D., University of Connecticut (1963)
Postdoctoral Fellow, University of Stockholm (1963-4)
Delaware section American Chemical Society Award, 1978
Honor Roll Award of Philadelphia Chapter of the American Institute of Chemists, 1988
Gold Medal Award from the National Association for Science, Technology and Society, 1994
American Chemical Society Award for Chemistry of Materials, 1997
Research group web site:
Professor Sleight's interests are mainly in the synthesis of new inorganic solids and in the elucidation of structure-property relationships of inorganic solids, especially oxides. Currently, oxides which contract on heating are under intensive study. Such compounds have potential applications in electronics, optics, and dental restorations. An example of a compound found to show strong negative thermal expansion is ZrW2O8.Thermally activated rocking motions of the ZrO6 octahedra (green) and WO4 tetrahedra (red) cause the thermal contraction without any decrease in Zr-O or W-O bond lengths. The cause of the unusual thermal expansion is illustrated in the movie on this page.
Exploratory synthesis efforts have led to the discovery of a new family of compounds with the formula BiA2MO6 (A = Mg, Ca, Cd, or Cu; M = V, As, or P). The structures of these compounds are similar but differ in details. Ferroelectric behavior has been established for BiCa2VO6.
- Strong Negative Thermal Expansion along the O-Cu-O Linkage in CuScO2, Chem. Mater., 2002, 14 (6), 2602-2606.
- ACu3Ti4O12 and ACu3Ru4O12 perovskites: High dielectric constants and valence degeneracy, Solid State Sciences, 2002, 4 (3), 347-351.
- Structure of NaBi3V2O10 and Implications for Ionic Conductivity, Chem. Mater., 2001, 13 (11), 3825-3826.
- Colossal Magnetoresistance without Mn3+/Mn4+ Double Exchange in the Stoichiometric Pyrochlore Tl2Mn2O7, Science, 1996, 273, 81-84.
- Negative Thermal Expansion from 0.3 K to 1050 K in ZrW2O8, Science, 1996, 272, 90-92.
- Room Temperature Superconductors, Acc. Chem. Res., 1995, 28, 103-108.