B.A.: Harvard 1964; Ph.D.: Northwestern 1969 Interim Dean, Weinberg College of Arts and Sciences Lawrence B. Dumas Distinguished University Professor Ongoing research in seven major areas of chemistry: nonlinear optical response properties of molecules; electron transfer and molecular electronics; quantum dynamics and relaxation in condensed phase; mean-field models for extended systems, including proteins and molecular assemblies; photonics in nanoscale systems; excitons in molecule-based photovoltaics and hybrid classical/quantum representations.