Publications and Presentations

The aim of this book is to make advanced group theoretical techniques comprehensible to chemists and physicists who are working in a field of molecular spectroscopy. Calculations using these methods are faster and less prone to error than older techniques using vector coupling coefficients.

The book has three major parts which present respectively, basic spectroscopy, elementary group theory, and advanced group theoretic techniques and applications. The text is interwoven with numerous examples from electronic and vibronic spectrosopy and from magnetic circular dichroism (MCD).

The prinicples of molecular spectroscopy are developed in detail so that the examples can be understood without refernce to other sources. Group theory is developed from first principles and proceeds in a step-by-step fashion through current research applications.

Although vector coupling coefficients are introduced after presenting the Wigner-Eckart theorem, attention focuses exclusively on high symmetry coefficients (3jm, 6j, 9j) in all applications. The phase conventions of P. H. Butler's Point Group Symmetry: Applications: Methods and Tables (Plenum Press, 1981) are followed throughout.

Professor Piepho's early research papers were concerned primarily with the interpretation of the optical absorption and magnetic circular dichroism spectra of transition metal ions. This led to her interest in group theory, which culminated in the publication of the book, Group Theory in Spectroscopy: With Applications to Magnetic Circular Dichroism, described above.

More recently her research has focused on developing theoretical models which describe electron-transfer in mixed-valence compounds. Mixed-valence molecules contain two metal centers in different oxidation states between which electrons may transfer. They serve as model compounds for the study of the oxidation/reduction process.

• P. N. Schatz and S. B. Piepho, Comment on "Time-Dependent Theoretical Treatment of Intervalence Absorption Spectra. Exact Calculations in a One-Dimensional Model," J. Phys. Chem., 98, 11226-11229 (1994).
  

• C. Samet, J. L. Rose, S. B. Piepho, J. Laurito, L. Andrews, and P. N. Schatz, "Analysis of the Jahn-Teller Effect in Matrix Isolated Cyclooctatetraene Mononegative Ion Using Magnetic Circular Dichroism Spectroscopy," J. Am. Chem. Soc., 116, 11109-11119 (1994).
  

• S. B. Piepho, "Vibronic Coupling Models for Mixed-Valence Line Shapes: Going Beyond the PKS Approach," in Mixed Valency Systems: Applications in Chemistry, Physics and Biology, Kosmas Prassides, editor, pages 329-334 (Kluwer Academic Publishers, Dordrecht, The Netherlands, 1991).
  

• S. B. Piepho, "Vibronic Coupling Model for the Calculation of Mixed-Valence Line Shapes: A New Look at the Creutz-Taube Ion," J. Am. Chem. Soc., 112, 4197-4206 (1990).

• S. B. Piepho, "Vibronic Coupling Model for the Calculation of Mixed-Valence Line Shapes: The Interdependence of Vibronic and MO Effects," J. Am. Chem. Soc., 110, 6319-6326 (1988).
  

• K. Neuenschwander, S. B. Piepho, and P. N. Schatz, "Inclusion of Spin-Orbit and Low-Symmetry Effects in a Vibronic Coupling (PKS) Model for Mixed Valence Dimers: Application to the Creutz-Taube Ion," J. Am. Chem. Soc., 107, 7862 (1985).
  

• S. B. Piepho, "Vibronic Model for Mixed Valence Compounds and Spin Crossover Systems," Nouveau Journal de Chimie, 4, 639, (1980).
  

• K. W. Wong, P. N. Schatz and S. B. Piepho, "Vibronic Coupling Model for Mixed Valence Compounds: Comparisons and Predictions," J. Am. Chem. Soc., 101, 2793 (1979).

• S. B. Piepho, "Advanced Group Theoretical Techniques and Their Application to Magnetic Circular Dichroism Spectroscopy," in J. Donini, editor, Recent Advances in Group Theory and Their Application to Spectroscopy, pages 405-491 (Plenum Press, New York, 1979).

• P. N. Schatz, S. B. Piepho, and E. R. Krausz, "Far Infrared Tunnelling Transitions in Mixed Valence Systems," Chemical Physics Letters, 55, 539 (1978).

• S. B. Piepho, E. R. Krausz, and P. N. Schatz, "A Vibronic Coupling Model for Calculation of Mixed Valence Absorption Profiles," J. Am. Chem. Soc., 100, 2996, (1978).

• S. B. Piepho, W. H. Inskeep, P. N. Schatz, W. Preetz and H. Homberg, "M.C.D. Spectra of OsI₆^2- and the trans-Mixed Hexahalo Complexes of Ir⁴⁺ and Os⁴⁺," Mol. Phys., 30, 1569 (1975).

• T. A. Keiderling, P. J. Stephens, S. B. Piepho, J. L. Slater and P. N. Schatz, "Infrared Absorption and M.C.D. of Cs₂ZrCl₆:Ir⁴⁺," Chemical Physics, 11, 343 (1975).

• C. Collingwood, S. B. Piepho, R. W. Schwartz, P. A. Dobosh, J. R. Dickinson and P. N. Schatz, "The Optical Absorption and Magnetic Circular Dichroism Spectra of Re⁴⁺ in the Cubic Hosts of Cs₂ZrCl₆, Cs₂NaYCl₆ and Cs₂ZrBr₆," Mol. Phys., 29, 793 (1975).

• S. B. Piepho, J. R. Dickinson, J. A. Spencer, and P. N. Schatz, "High Resolution Absorption and Magnetic Circular Dichroism Spectra of Cs₂ZrCl₆:Os⁴⁺," Mol. Phys., 24, 609 (1972).

• S. B. Piepho, J. R. Dickinson, J. A. Spencer and P. N. Schatz, "High Resolution Magnetic Circular Dichroism Spectrum of Cs₂ZrCl₆:Ir⁴⁺," J. Chem. Phys., 57, 982 (1972).

• J. R. Dickinson, S. B. Piepho, J. A. Spencer and P. N. Schatz, "High Resolution Magnetic Circular Dichroism and Absorption Spectra of Cs₂ZrBr₆:Ir⁴⁺," J. Chem. Phys., 56, 2668 (1972).

• S. B. Piepho, J. R. Dickinson, and P. N. Schatz, "Magnetic Circular Dichroism of Resolved Vibronic Lines in Cs₂ZrCl₆:U⁴⁺," phys. status solidi, 47, 225 (1971).

• S. B. Piepho, T. E. Lester, A. J. McCaffery, J. R. Dickinson and P. N. Schatz, "The Electronic Absorption and Magnetic Circular Dichroism Spectra of IrBr₆^2- in Several Host Crystals," Mol. Phys., 19, 781 (1970).

• P. N. Schatz, R. B. Shiflett, J. A. Spencer, A. J. McCaffery, S. B. Piepho, J. R. Dickinson and T. E. Lester, "Magnetic Circular Dichroism Studies of Ions in Solutions and Crystals," Symposium of the Faraday Society, 1969, No. 3, 14.

• S. B. Piepho, P. N. Schatz, and A. J. McCaffery, "Ultraviolet Spectral Assignments in the Tetracyano Complexes of Platinum, Palladium and Nickel from Magnetic Circular Dichroism," J. Am. Chem. Soc., 91, 5994 (1969).

• W. Kreis, S. B. Piepho, and H. V. Bernhard, "Studies on the Metabolic Fate of the ¹⁴C-Labeled Methyl Group of a Methylhydrazine derivative in P815 Mouse Leukemia," Separatum EXPERIENTIA, 22, 432 (1966).
  

• What's Under the Kitchen Sink?

• Culinary Chemistry

• Whodunit? Drug Bust! An Exercise in Forensic Chemistry

• Whodunit? Arson! An Exercise in Forensic Chemistry

• Shirty Equilibria: What Factors Affect Salt Solubility?

• From Rust to Batteries: How to Control Electrochemical Energy

• What Color is Your T-Shirt? Reflections on an Absorbing Question

• Local Waters: Questions and Answers
  

All of these are multi-week labs. Summaries of these modules, names of co-authors, and information on how to obtain copies, is given at the web site,

All lab modules developed by the seven-college Women-in-Chemistry Consortium project are copyrighted by the College-University Resource Institute (CURI), Inc.. Consult the world wide web address above for more information on the Women-in-Chemistry Consortium and the 30 lab modules developed by the project.

Professor Piepho was one of four presenters for the American Chemical Society Satellite Television Seminar, Teaching Chemistry 1996: Including Organic Chemistry in the Introductory Course, given November 4, 1996. She spoke on "Investigations of Chemistry in Everyday Life."

A video of the presentation and the accompanying seminar book have been published by the American Chemical Society, Washington, D.C. (Catalog No. V870S).

• "Investigations of Chemistry in Everyday Life" as part of the American Chemical Society Satellite Television Seminar, Teaching Chemistry 1996: Including Organic Chemistry in the Introductory Course, November 4, 1996.

• "The Theory of Mixed-Valence Compounds" at Virginia Commonwealth University, Richmond, Virginia, April 1985 .

• "The Theory of Mixed-Valence Compounds" at Brookhaven National Laboratory, May 1981; "The Theory of Mixed-Valence Compounds" at Georgetown University, December 1980.

• "Mixed-Valence Theory" at the Fifth International Symposium on Solvent-Solute-Solvent Interactions. Florence, Italy, June 1980.

• Series of eight lectures at the N.A.T.O. Advanced Study Institute on Recent Advances in Group Theory and Their Applications to Spectroscopy, St. Xavier University, Antigonish, Nova Scotia, Canada, August 1978.

• "The Jahn-Teller Effect in OsCl₆^2-" as part of the Theoretical Chemistry Lecture Series at Oxford University, Oxford, England, 1975.

• "Advanced Group Theory and Magnetic Circular Dichroism" at King's College, University of London, England, 1975.