The solution conformation of triarylmethyl radicals

Journal of Magnetic Resonance

Volumn 172, Issue 2, 2005, Pages 254-267

  Bowman, M K ^a   Mailer, C ^b   Halpern, H J ^b  

^a PACIFIC NORTHWEST NATIONAL LABORATORY   (United States)

^b Dept of Radiat and Cell Oncology   (United States)

Author keywords

ENDOR; Pulsed EPR; Trityl radical

Indexed keywords

ELECTRON SPIN DENSITY; ENDOR; PULSED EPR; TRITYL RADICAL;

CARBON; COMPLEXATION; COMPUTER SIMULATION; CRYOSTATS; HYDROGEN; MAGNETIC FIELD EFFECTS; MOLECULAR DYNAMICS; OSCILLATORS (ELECTRONIC); PARAMAGNETIC RESONANCE; POLARIZATION; QUANTUM THEORY; RELAXATION PROCESSES; RESONATORS; SOLUTIONS; SPECTROMETERS; TENSORS;

ORGANIC COMPOUNDS;

TRITYL DERIVATIVE;

ARTICLE; CHEMICAL STRUCTURE; CHEMISTRY; CONFORMATION; ELECTRON SPIN RESONANCE; METHODOLOGY; SOLUTION AND SOLUBILITY;

ELECTRON SPIN RESONANCE SPECTROSCOPY; MOLECULAR CONFORMATION; MOLECULAR STRUCTURE; SOLUTIONS; TRITYL COMPOUNDS;

EID: 11344260351     PISSN: 10907807     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jmr.2004.10.010     Document Type: Article

References (28)

1. J.H. Ardenkjaer-Larsen, I. Laursen, I. Leunbach, G. Ehnholm, L.G. Wistrand, J.S. Petersson, and K. Golman EPR and DNP properties of certain novel single electron contrast agents intended for oximetric imaging J. Magn. Reson. 133 1998 1 12
2. R.A. Wind, and J.H. Ardenkjaer-Larsen H-1 DNP at 1.4 T of water doped with a triarylmethyl-based radical J. Magn. Reson. 141 1999 347 354
3. C.T. Farrar, D.A. Hall, G.J. Gerfen, M. Rosay, J.H. Ardenkjaer-Larsen, and R.G. Griffin High-frequency dynamic nuclear polarization in the nuclear rotating frame J. Magn. Reson. 144 2000 134 141
4. J.H. Ardenkjaer-Larsen, B. Fridlund, A. Gram, G. Hansson, L. Hansson, M.H. Lerche, R. Servin, M. Thaning, and K. Golman Increase in signal-to-noise ratio of >10,000 times in liquid-state NMR Proc. Natl. Acad. Sci. USA 100 2003 10158 10163
5. K.A. Rubinson, J.A. Cook, J.B. Mitchell, R. Murugesan, M.C. Krishna, and S. Subramanian FT-EPR with a nonresonant probe: use of a truncated coaxial line J. Magn. Reson. 132 1998 255 259
6. S.K. Jackson, M.P. Thomas, S. Smith, M. Madhani, S.C. Rogers, and P.E. James In vivo EPR spectroscopy: biomedical and potential diagnostic applications Faraday Discuss. 126 2004 103 117
7. W. Barros, P.L. De Sousa, and M. Engelsberg Low field intermolecular double-quantum coherence imaging via the Overhauser effect J. Magn. Reson. 165 2003 175 179
8. B.B. Williams, H. Al Hallaq, G.V.R. Chandramouli, E.D. Barth, J.N. Rivers, M. Lewis, V.E. Galtsev, G.S. Karczmar, and H.J. Halpern Imaging spin probe distribution in the tumor of a living mouse with 250 MHz EPR: correlation with bold MRI Magn. Reson. Med. 47 2002 634 638
9. R.B. Clarkson, B.M. Odintsov, P.J. Ceroke, J.H. Ardenkjaer-Larsen, M. Fruianu, and R.L. Belford Electron paramagnetic resonance and dynamic nuclear polarization of char suspensions: surface science and oximetry Phys. Med. Biol. 43 1998 1907 1920
10. A. Blank, C.R. Dunnam, P.P. Borbat, and J.H. Freed High resolution electron spin resonance microscopy J. Magn. Reson. 165 2003 116 127
11. P. Kuppusamy, P.H. Wang, M. Chzhan, and J.L. Zweier High resolution electron paramagnetic resonance imaging of biological samples with a single line paramagnetic label Magn. Reson. Med. 37 1997 479 483
12. H.J. Halpern, D.P. Spencer, J. Vanpolen, M.K. Bowman, A.C. Nelson, E.M. Dowey, and B.A. Teicher Imaging radio-frequency electron-spin-resonance spectrometer with high-resolution and sensitivity for in vivo measurements Rev. Sci. Instrum. 60 1989 1040 1050
13. R.V. Pound, Frequency stabilization of electronically tunable microwave oscillators, in: Technique of Microwave Measurements (Anonymous), McGraw-Hill, New York, 1947, pp. 58-78
14. P. Höfer Multiple quantum pulsed ENDOR spectroscopy by time proportional phase increment detection Appl. Magn. Reson. 11 1996 375 389
15. A. Schweiger New trends in pulsed electron spin resonance methodology L. Kevan M.K. Bowman Modern Pulsed and Continuous-Wave Electron Spin Resonance 1990 Wiley New York 43 118
16. A. Grupp, and M. Mehring Pulsed ENDOR spectroscopy in solids L. Kevan M.K. Bowman Modern Pulsed and Continuous-Wave Electron Spin Resonance 1990 Wiley New York 195 230
17. M.K. Bowman, and A.M. Tyryshkin Electron nuclear quadruple resonance for assignment of overlapping spectra J. Magn. Reson. 144 2000 74 84
18. M.J. Frisch, G.W. Trucks, H.B. Schlegel, G.E. Scusiera, M.A. Robb, J.R. Cheeseman, V.G. Zakrzewski, J.A. Montgomery Jr., R.E. Stratmann, J.C. Burant, S. Dapprich, J.M. Millam, A.D. Daniels, K.N. Kudin, M.C. Srain, O. Farkas, J. Tomasi, V. Barone, M. Cossi, R. Cammi, B. Mennucci, C. Pomelli, C. Adamo, S. Clifford, J. Ochterski, G.A. Petersson, P.Y. Ayala, Q. Cui, K. Morokuma, P. Salvador, J.J. Dannenberg, D.K. Malick, A.D. Rabuck, K. Raghavachari, J.B. Foresman, J. Cioslowski, J.V. Ortiz, A.G. Baboul, B.B. Stefanov, G.L.A. Liu, P. Piskorz, I. Komaromi, R. Gomperts, R.L. Martin, D.J. Fox, T. Keith, M.A. Al-Laham, C.Y. Peng, A.C.M. Nanayakkara, P.M.W. Gill, B. Johnson, W. Chen, M.W. Wong, J.L. Andres, C. Gonzalez, M. Head-Gordon, E.S. Replogle, and J.A. Pople Gaussian 98 (Revision A.11.) 2001 Gaussian Inc. Pittsburgh, PA
19. C. Mailer, B.H. Robinson, B.B. Williams, and H.J. Halpern Spectral fitting: the extraction of crucial information from a spectrum and a spectral image Magn. Reson. Med. 49 2003 1175 1180
20. J.H. Freed, D.S. Leniart, and J.S. Hyde Theory of saturation and double resonance effects in ESR spectra. III. rf coherence and line shape J. Chem. Phys. 47 1967 2762
21. A.E. Stillman, and R.N. Schwartz Theory of electron spin echoes in nonviscous and viscous liquids L. Kevan R.N. Schwartz Time Domain Electron Spin Resonance 1979 Wiley-Interscience New York 153 194
22. C. Gemperle, A. Schweiger, and R.R. Ernst ESR-detected nuclear transient nutations-detection schemes and applications Chem. Phys. Lett. 145 1988 1 8
23. H. Thomann, and M. Bernardo Advances in electron nuclear double resonance spectroscopy R.E. Botto Y. Sanada Magnetic Resonance of Carbonaceous Solids 1993 American Chemical Society Washington 65 90
24. S.A. Dikanov, and Yu.D. Tsvetkov Electron spin echo envelope modulation (ESEEM) spectroscopy 1992 CRC Press Boca Raton, FL
25. T.J. Reddy, T. Iwama, H.J. Halpern, and V.H. Rawal General synthesis of persistent trityl radicals for EPR imaging of biological systems J. Org. Chem. 67 2002 4635 4639
26. A.R. Sornes, N.P. Benetis, R. Erickson, A.S. Mahgoub, L. Eberson, and A. Lund Effect of isotopic substitution on the electron spin dynamics of the Ch3(C)(COOH)(2) radical in X-irradiated methyl malonic acid powder: intrinsic potentials and activation energies J. Phys. Chem. A 101 1997 8987 8994
27. L. Yong, J. Harbridge, R.W. Quine, G.A. Rinard, S.S. Eaton, G.R. Eaton, C. Mailer, E. Barth, and H.J. Halpern Electron spin relaxation of triarylmethyl radicals in fluid solution J. Magn. Reson. 152 2001 156 161
28. M.K. Bowman, and L. Kevan Electron spin lattice relaxation mechanism of radiation produced trapped electrons and hydrogen atoms in aqueous and organic glassy matrices: modulation of electron nuclear dipole interaction by tunneling modes in a glassy matrix Faraday Discuss. 63 1978 7 17