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Our research focuses on the
application of computational
methods to the study of organic reactivity in diverse environments
(in the gas phase, in solution, in the interiors of biological macromolecules,
as part of organometallic complexes). The intimate relationship between
theory and experiment pervades each of these endeavors, and a focus of
our work is the design of molecular architectures with unusual reactivity.
"Playfulness
is an incentive for the scientist and a motor of progress."
- Rolf
Huisgen, The Adventure Playground of Mechanisms and Novel
Reactions, 1994.
"Don't ask yourself what the world needs. Ask yourself what makes you come alive and then go do that. Because what the world needs is people who have come alive."
- Howard Thurman
Reaction
Design and Theories of Reactivity

Post-Transition State Bifurcations
Transition State Complexation
Concerted Asynchronous Reactions
Reactive Intermediate Promoted Polycyclization (RIPP) Reactions
Hiscotropic Rearrangements
Pericyclic Perspectives
Theoretical
Bioorganic and Bioinorganic Chemistry

Complexity Creation in Bio- and Biomimetic Syntheses of Natural Products
Theozymes
Nonclassical Cations in Biology
Terpenoid Biosynthesis
Sulfur in Biology
Biosynthetic Dipolar Cycloadditions
Computing Chemical Shifts to Aid Natural Product Structure Elucidation
Hydration of Biologically Active Compounds
Ladderane Lipids
Drug Design: Conformational Analysis, Docking, and Library Design
Noncovalent Catalysis of Biological Decarboxylations
Antibody Catalyzed Organic Reactions
Biosynthesis and Molecular Pharmacology of Nitric Oxide and Nitroxyl
Predicting Spectra

NMR chemical shifts and Coupling Constants
Mass Spectra
Chemical Education

Making Computational Chemistry Accessible to the Blind & Visually Impaired
3D Printing
Dynamics Trajectory Movies
Historical Chemistry
Organic
Molecules with Unusual Properties

Sulfur-Lone Pair Interactions
5-Center 4-Electron Cations and Their Relatives
Unusual Oxonium Cations
Bicyclobutanes
Carbenes
Sigmatropic Shiftamers
Sigma-Polyacenes
Fickle Hexadienes
Tetrathiafulvalenes under Extreme Conditions
Physical
Organometallic Chemistry

Metal-Promoted Sigmatropic Shifts
Dirhodium Tetracarboxylate-Promoted Reactions
Iron-Promoted Electrocyclic Reactions
Interactions of Chromium Arenes with Reactive Intermediates
Rates,
Regio- and Stereoselectivity of Synthetically Useful Reactions

Organocatalysis
Schmidt Rearrangements
Radical Cation Diaza-Cope Rearrangements
Oxidopyrilum Zwitterion + Alkene Cycloadditions
Nazarov Electrocyclizations
Reactivity of Enamines and Iminium Ions Built from Aziridines
Dissecting Dyotropic Rearrangements
Lewis Acid Promoted Tandem Sigmatropic Shifts/Aromatic Substitutions
Diazocinone-forming Cascades
Semibullvalene Bromination
The Cationic Cascade Route to Longifolene
Rearrangements of Housane Radical Cations
Stereoselectivity of Intramolecular Diels-Alder Reactions
Regio- and Stereoselectivity of alpha-Lactam Ring-Opening Reactions
"If you don't
know the past, how can you know the future?"
- Tony
Bennett
"...it is through
training in pure research that the mind is best prepared to capitalize
broadly on chances as they arise... My area, physical organic chemistry,
is a highly interdisciplinary pursuit that provides the principles for
the design and synthesis of organic molecules with the goal of uncovering
the origins of their structure and properties. It is the conceptual basis
for the modern arenas of stereoselective, biomimetic, and materials chemistry.
It provides basic tools for medicinal, environmental, and biological chemistry.
So, why is physical organic chemistry viewed as off-limits to young scientists
who have hopes of establishing research funding? What spoiled the passion
for such a central theme in chemistry? Could it be that 'visionaries'
who 'knew the way' were allowed to project their futures on that of the
field without regard for diversity?"
- Jay
Siegel, C&EN, March 26, 2001, p.114
"..the compounds
just described [(C5H5)2MX2, M = V, Nb, Ta, X = Cl, Br] were the lineal
ancestors of today's marvelous so-called single-site catalysts for olefin
polymerization. They were discovered, I would like to emphasize, not by
people who had written a grant proposal to work on olefin polymerization,
but by people who were funded to do fundamental research that had no predictable
practical use."
- F.
A. Cotton, J. Organomet. Chem. 2001, 637-639,
18-26
"It has always
seemed to me that the most attractive applications of theory are to explore
the unknown. If you want to find something truly new, your chances are
better if you look in new places."
- Paul
Schleyer, J. Comp. Chem. 2001, 13, ix-xi
"Every attempt to employ mathematical methods in the study of chemical questions must be considered profoundly irrational and contrary to the spirit of chemistry."
- Auguste Compte, Philosophie Positive 1830

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