TY - JOUR
T1 - Pulse EPR methods for studying chemical and biological samples containing transition metals
AU - Santangelo, Maria Grazia
AU - Léger, Patrick
AU - Mancosu, Bruno
AU - Sreekanth, Anandaram
AU - Garcia-Rubio, Inès
AU - Schweiger, Arthur
AU - Gromov, Igor A.
AU - Tschaggelar, René
AU - Kasumaj, Besnik
AU - Hinderberger, Dariush
AU - Mitrikas, George
AU - Fedin, Matvey V.
AU - Gromov, Igor A.
AU - Harmer, Jeffrey
AU - Forrer, Jörg
AU - Santangelo, Maria Grazia
AU - Calle, Carlos
AU - Stoll, Stefan
PY - 2006
Y1 - 2006
N2 - This review discusses the application of pulse EPR to the characterization of disordered systems, with an emphasis on samples containing transition metals. Electron nuclear double-resonance (ENDOR), electron-spin-echo envelope-modulation (ESEEM), and double electron-electron resonance (DEER) methodologies are outlined. The theory of field modulation is outlined, and its application is illustrated with DEER experiments. The simulation of powder spectra in EPR is discussed, and strategies for optimization are given. The implementation of this armory of techniques is demonstrated on a rich variety of chemical systems: several porphyrin derivatives that are found in proteins and used as model systems, otherwise highly reactive aminyl radicals stabilized with electron-rich transition metals, and nitroxide-copper-nitroxide clusters. These examples show that multi-frequency continuous-wave (CW) and pulse EPR provides detailed information about disordered systems.
AB - This review discusses the application of pulse EPR to the characterization of disordered systems, with an emphasis on samples containing transition metals. Electron nuclear double-resonance (ENDOR), electron-spin-echo envelope-modulation (ESEEM), and double electron-electron resonance (DEER) methodologies are outlined. The theory of field modulation is outlined, and its application is illustrated with DEER experiments. The simulation of powder spectra in EPR is discussed, and strategies for optimization are given. The implementation of this armory of techniques is demonstrated on a rich variety of chemical systems: several porphyrin derivatives that are found in proteins and used as model systems, otherwise highly reactive aminyl radicals stabilized with electron-rich transition metals, and nitroxide-copper-nitroxide clusters. These examples show that multi-frequency continuous-wave (CW) and pulse EPR provides detailed information about disordered systems.
KW - COENZYME-M-REDUCTASE
KW - CONTINUOUS-WAVE
KW - ELECTRON-PARAMAGNETIC-RESONANCE
KW - ENVELOPE MODULATION
KW - RADICAL COMPLEXES
KW - SPIN SYSTEMS
KW - COENZYME-M-REDUCTASE
KW - CONTINUOUS-WAVE
KW - ELECTRON-PARAMAGNETIC-RESONANCE
KW - ENVELOPE MODULATION
KW - RADICAL COMPLEXES
KW - SPIN SYSTEMS
UR - http://hdl.handle.net/10447/52843
M3 - Article
SN - 0018-019X
VL - 89
SP - 2495
EP - 2521
JO - Helvetica Chimica Acta
JF - Helvetica Chimica Acta
ER -