Arnold Rheingold
Inorganic chemistry: Small-molecule crystallography, synthesis of transition metal/p-block clusters
Inorganic chemistry: Small-molecule crystallography, synthesis of transition metal/p-block clusters
Contact Information
Professor of Chemistry and Biochemistry
Office: Urey Hall 5128
Phone: 858-822-3870
Email: arheingold@ucsd.edu
Group: View group members
Office: Urey Hall 5128
Phone: 858-822-3870
Email: arheingold@ucsd.edu
Group: View group members
Education
1969 Ph.D., , University of Maryland
1963 M.S., , Case Western Reserve University
1962 B.S., , Case Western Reserve University
1969 Ph.D., , University of Maryland
1963 M.S., , Case Western Reserve University
1962 B.S., , Case Western Reserve University
Awards and Academic Honors
2002
Chair, ACS Division of Inorganic Chemistry
1992
Elected Fellow of American Association for the Advancement of Science
1981-1992
Appointed to faculty, University of Delaware
1980
Visiting Professor, SUNY-Buffalo
1970-1981
Appointed to faculty, SUNY-Plattsburgh
1969-1970
Research Associate (postdoctoral), Virginia Polytechnic Institute
1963-1965
Project Manager, Glidden Co.
Research Interests
Recent advances in the instrumentation for small molecule X-ray crystallography have made it possible to complete a full structural characterization of a new material in less time, at less expense and with far less ambiguity than any other characterizational method currently available.
Prof. Rheingold's research explores ways of using X-ray crystallography to provide very rapid and accurate structural characterizations of new compounds in collaboration with members of this department and with several hundred chemists from about fifty other departments worldwide. He welcomes inquiries regarding the establishment of new collaborations, particularly in the areas of inorganic and organometallic chemistry.
His interest in crystallography arose from his research in the synthesis and properties of large cluster structures containing hybrid p-block and transition-metal atoms. These are often paramagnetic solids necessitating crystallographic characterization. A recent example is the di-cubane structure, {[(Cp*CrSe)3Se]2(µ6-As)}, shown below. It contains Cr in a non-integral oxidation state and it behaves ferromagnetically at low temperatures. Such hybrid clusters are of interest as precursors to new materials displaying thermoelectric and thermomagnetic properties. Simple tetrahedrane analogues such as [(CO)3CoAs3] are found to be excellent volatile precursors to skudderudite phases useful in high-temperature Seebach-effect applications. Both of these metal/p-block hybrid clusters was formed from p-block hetero- and homo-cyclic precursors; in the cases above: (CH3AsSe)3 and (CH3As)5.
Prof. Rheingold's research explores ways of using X-ray crystallography to provide very rapid and accurate structural characterizations of new compounds in collaboration with members of this department and with several hundred chemists from about fifty other departments worldwide. He welcomes inquiries regarding the establishment of new collaborations, particularly in the areas of inorganic and organometallic chemistry.
His interest in crystallography arose from his research in the synthesis and properties of large cluster structures containing hybrid p-block and transition-metal atoms. These are often paramagnetic solids necessitating crystallographic characterization. A recent example is the di-cubane structure, {[(Cp*CrSe)3Se]2(µ6-As)}, shown below. It contains Cr in a non-integral oxidation state and it behaves ferromagnetically at low temperatures. Such hybrid clusters are of interest as precursors to new materials displaying thermoelectric and thermomagnetic properties. Simple tetrahedrane analogues such as [(CO)3CoAs3] are found to be excellent volatile precursors to skudderudite phases useful in high-temperature Seebach-effect applications. Both of these metal/p-block hybrid clusters was formed from p-block hetero- and homo-cyclic precursors; in the cases above: (CH3AsSe)3 and (CH3As)5.
Primary Research Area
Inorganic Chemistry
Inorganic Chemistry
Interdisciplinary interests
Image Gallery
Selected Publications
- Synthesis and Reactions of Molybdenum Triamidoamine Complexes Containing Hexaisopropylterphenyl Substituents. With D. V. Yandulov, R. R. Schrock, C. Ceccarelli, and W. M. Davis. Inorg. Chem. 42, 796-813 (2003).
- The Effect of a 3-Benzyl Group on the Coordination Chemistry of Homoscorpionate Ligands. With L. N. Zakharov and S. Trofimenko, Inorg. Chem. 42, 827-833 (2003).
- Cobalt Single-Molecule Magnet. With E. C. Yang, D. N. Hendrickson, W. Wernsdorfer, M. Nakano, L. N. Zakharov, R. D. Sommer, M. Ledezma-Gairaud, and G. Christou. J. Appl. Phys. 91, 7382-7394 (2002).
- Terthienyl and Poly-Terthienyl Ligands as Redox-Switchable Hemilabile Ligands for Oxidations-State-Dependent Molecular Uptake and Release. With P. A. Weinberger, T. B. Higgins, C. A. Mirkin, C. L. Stern, and L. M. Liable-Sands. J. Am. Chem. Soc. 123, 2503-2509 (2002).
- The First Transition-Metal Complex of Tetrafluorobenzyne: Ir(·5-C5Me5)(PMe3)(·2-C6F4). With R. P. Hughes, A. Williamson, and R. D. Sommer. J. Am. Chem. Soc. 123, 7443-7444 (2001).
- Structural Diversity in a Family of Copper(I) Thioether Complexes. With C. Ohrenberg, C. G. Riordan, and L. M. Liable-Sands. Inorg. Chem. 40, 4276-4283 (2000).
- Synthetic Models for the Zinc Sites in the Methionine Synthases. With S. Chiou, J. Innocent, C. G. Riordan, K. Lam, and L. M. Liable-Sands. Inorg. Chem. 39, 4347-4353 (2000).