A Short Course on Spin Taught by Ronald Lawler and Nicholas Turro

| Background Reading | Suggested Books | Outline | Suggestions | Miscellaneous |

Background Reading In no particular order: "Paramagnetic Interactions of Triplet Radical Pairs with Nitroxide Radicals: An "Antiscavenging" Effect" Step, E.N.; Buchachenko, A.L.; Turro, N.J. J. Am. Chem. Soc. 1994, 116, 5462-5466. Download as .pdf Download related .ppt (EJP) "Phosphorescence and the Triplet State" Lewis, G.N.; Kasha, M. J. Am. Chem. Soc. 1944, 66, 2100-2116. Download as .pdf Download related .ppt (JRL) "Radical pair recombination stereoselectivity as a probe of magnetic isotope and magnetic field effects" Lem, G.; Turro, N.J. Chem. Comm. 2000, 293-294. Download as .pdf Download related .ppt (JRL) "How Spin Stereochemistry Severly Complicates the Formation of a Carbon-Carbon Bond between Two Reactive Radicals in a Supercage" Turro, N.J.; Buchachenko, A.L.; Tarasov, V.F. Acc. Chem. Res. 1995, 28, 69-80. Download as .pdf "Magnetic Field and Magnetic Isotope Effects in Organic Photochemical Reactions. A Novel Probe of Reaction Mechanisms and a Method for Enrichment of Magnetic Isotopes" Turro, N.J.; Kraeutler, B. Acc. Chem. Res. 1980, 13, 369-377. Download as .pdf Download related .ppt (JYC) Back to top

General Outline for Short Course on "Spin" RGL - October 2008 Download Outline as .doc Basic Physics Angular Momentum Vector Representation Magnetism Units Quantum aspects of spin Spin Hamiltonian/Operators/Basis functions Transition probabilities Two-level problem Level-crossing Magnetic Resonance Classical version Bloch equations Quantum version Density matrices/Heisenberg representation NMR Parameters Relaxation mechanisms Pulsed methods EPR Parameters Relaxation mechanisms Pulsed methods Double resonance DNP Overhauser Effect Cross-relaxation/Relaxivity Solid state and gas phase MR EPR of 1O2 NMR of H2 and D2 gas EPR of trapped radicals/triplets Spin-dependent Chemistry and Physics Radical pairs CIDNP/CIDEP S-T mixing and photochemistry Radical-3O2 interactions CIDEP 1O2 quenching oH2-pH2 conversion Effects of external fields Static Time-dependent FDMR/RYDMR Magnetic isotope effects What do you want to learn from the course? Summary of topics about spin Explanation of theoretical and experimental aspects of spin Origin of NMR and EPR parameters Spectra-structure correlations BPP theory of relaxation Redfield/Bloch/Hubbard/Freed theories of relaxation Formulation of multiple-pulse methods Qualitative models for spin phenomena Vector models Energy level diagrams Quantitative analysis and modeling of spin phenomena Extraction of structure and dynamics from relaxation data Modeling of CIDNP and CIDEP spectra Simulation of powder and single-crystal spectra Back to top

Suggestions and Questions Regarding Spin Arun I am interested in looking into examples of chemical reactions involving/governed by spin changes. Jeffrey What is an intuitive understanding of the angular momentum of a wave? What are some more of these seminal early papers that describe in clear language the intellectual development of the idea of 'spin'? What are the experimental set-ups for several of the related techniques? What are the possibilities/uses for spin chemistry in systems such as polymers? (quenching, prolonging triplets, others? etc.) When thinking of statistical mechanical 1-D models of (correlated) spins, is there any way to actually incorporate such ideas into real systems? (just a fanciful curiosity question) Judy Section II of Ron's outline with regards to magnetic resonance as the benchmark. The theory behind and mechanism of: o/p conversion 1O2 quenching magnetic isotope effect are of great interest to me I want to also be able to explain theoretical and experimental aspects of spin with equations but not rigorously (section IV). Also I would like to have problem sessions on end of the chapter problems in Carrington and McLachlan. I want is to teach a course in Spin and come up with creative experiments of my own. Ben Paramagnatism/Diamagnetism What is EPR or ESR theory? How does one interpret the Nuclear Hyperfine Structure in ESR Spectra? Steffen CINDP and CIDEP Kaptein's rules EPR of electronically excited triplet states; spin polarized triplet states Jia MRI Ellane How does spin play a role in photochemical reactions between a biradical and sugar? How does S-T mixing affect the rates of photochemical reactions? How can spin be used as a marker/label for polymers in various environments (different temperatures, solvents, pH, etc.)? Back to top

Miscellaneous Dead or Alive - You Spin Me Round (Like a Record) Back to top