Localized cross-polarization in solids

Applied Magnetic Resonance - Tập 9 Số 2 - Trang 267-287 - 1995
Demco, D. E.1, Hafner, S.1, Kimmich, R.2
1Sektion Kernresonanzspektroskopie, Universität Ulm, Ulm, Germany
2Max-Planck-Institut für Polymerforschung, Mainz, Germany

Tóm tắt

Single quantum heteronuclear cross-polarization in solids is strongly sensitive to resonance offsets. In the presence of main field- or radio-frequency field gradients, the cross-polarization efficiency, therefore, shows a strong spatial dependence, which represents a new principle for localized NMR in solids. Since slices-selective excitation is achieved simultaneously to cross-polarization, the suggested pulse sequences avoid the use of shaped pulses, the application of which is problematic with solid. The dependence of the localization efficiency on experimental and sample parameters is analyzed theoretically for a spin-1/2 system in the presence of a static or a radio-frequency magnetic field gradient. The resulting slice profiles and the calculated dependence of the slice thickness on the parameters of the basic cross-polarization procedures are discussed and confirmed experimentally on the example of1H-3C spin systems.

Tài liệu tham khảo

citation_journal_title=Progr. NMR Spectrosc.; citation_author=P. Jezzard, J.J. Attard, T.A. Carpenter, L.D. Hall; citation_volume=23; citation_publication_date=1991; citation_pages=1-1; citation_doi=10.1016/0079-6565(91)80001-I; citation_id=CR1 citation_journal_title=Ann. Rep. NMR; citation_author=D.G. Cory; citation_volume=24; citation_publication_date=1992; citation_pages=87-87; citation_doi=10.1016/S0066-4103(08)60197-0; citation_id=CR2 citation_inbook_title=NMR Imaging of Solids. NMR Basic Principles and Progress, vol. 30; citation_publication_date=1994; citation_id=CR3; citation_author=P. Blümler; citation_author=B. Blümich; citation_publisher=Springer citation_journal_title=Bruker Report; citation_author=A.A. Samoilenko, K. Zick; citation_volume=1; citation_publication_date=1990; citation_pages=40-40; citation_id=CR4 citation_journal_title=J. Magn. Reson.; citation_author=D.G. Cory, J.B. Miller, A.N. Garroway; citation_volume=90; citation_publication_date=1990; citation_pages=205-205; citation_id=CR5 citation_journal_title=Adv. Magn. Reson.; citation_author=W.S. Veeman, D.G. Cory; citation_volume=13; citation_publication_date=1989; citation_pages=43-43; citation_id=CR6 citation_journal_title=Magn. Reson. Imag.; citation_author=F. Luca, N. Lugeri, B.C. Simone, B. Maraviglia; citation_volume=10; citation_publication_date=1992; citation_pages=765-765; citation_doi=10.1016/0730-725X(92)90409-S; citation_id=CR7 citation_journal_title=J. Magn. Reson.; citation_author=D.E. Demco, S. Hafner, R. Kimmich; citation_volume=96; citation_publication_date=1992; citation_pages=307-307; citation_id=CR8 citation_journal_title=J. Magn. Reson.; citation_author=N.M. Szeverenyi, G.E. Maciel; citation_volume=60; citation_publication_date=1984; citation_pages=460-460; citation_id=CR9 citation_journal_title=J. Magn. Reson.; citation_author=C.G. Fry, A.C. Lind, M.F. Davis, D.W. Duff, G.E. Maciel; citation_volume=83; citation_publication_date=1989; citation_pages=656-656; citation_id=CR10 citation_journal_title=J. Phys. E; citation_author=D.G. Cory, W.S. Veeman; citation_volume=22; citation_publication_date=1989; citation_pages=180-180; citation_doi=10.1088/0022-3735/22/3/011; citation_id=CR11 citation_journal_title=J. Magn. Reson.; citation_author=J.B. Miller, A.N. Garroway; citation_volume=85; citation_publication_date=1989; citation_pages=255-255; citation_id=CR12 citation_journal_title=Macromolecules; citation_author=E. Günther, B. Blümich, H.W. Spiess; citation_volume=25; citation_publication_date=1992; citation_pages=3315-3315; citation_doi=10.1021/ma00038a049; citation_id=CR13 citation_journal_title=J. Magn. Reson.; citation_author=D.G. Cory, J.B. Miller, A.N. Garroway; citation_volume=90; citation_publication_date=1990; citation_pages=544-544; citation_id=CR14 citation_journal_title=J. Magn. Reson.; citation_author=R.A. Wind, C.S. Yannoni; citation_volume=36; citation_publication_date=1990; citation_pages=269-269; citation_id=CR15 citation_journal_title=J. Magn. Reson.; citation_author=S. Matsui; citation_volume=97; citation_publication_date=1992; citation_pages=335-335; citation_id=CR16 citation_journal_title=J. Magn. Reson.; citation_author=E. Rommel, S. Hafner, R. Kimmich; citation_volume=86; citation_publication_date=1990; citation_pages=264-264; citation_id=CR17 citation_journal_title=J. Magn. Reson.; citation_author=S. Hafner, E. Rommel, R. Kimmich; citation_volume=88; citation_publication_date=1990; citation_pages=449-449; citation_id=CR18 citation_journal_title=J. Magn. Reson.; citation_author=D.E. Demco, R. Kimmich, S. Hafner, H.W. Weber; citation_volume=94; citation_publication_date=1991; citation_pages=317-317; citation_id=CR19 citation_journal_title=Chem. Phys. Lett.; citation_author=S. Hafner, D.E. Demco, R. Kimmich; citation_volume=187; citation_publication_date=1991; citation_pages=53-53; citation_doi=10.1016/0009-2614(91)90483-P; citation_id=CR20 citation_inbook_title=Slice-Selection and Phase-Encoding Techniques in Solid-State NMR Imaging. Magnetic Resonance Microscopy; citation_publication_date=1992; citation_id=CR21; citation_author=R. Kimmich; citation_author=D.E. Demco; citation_author=S. Hafner; citation_publisher=VCH citation_journal_title=J. Magn. Reson.; citation_author=C. Kunze, R. Kimmich, D.E. Demco; citation_volume=101; citation_publication_date=1993; citation_pages=277-277; citation_doi=10.1006/jmra.1993.1043; citation_id=CR22 citation_journal_title=J. Magn. Reson.; citation_author=D.E. Demco, H. Köstler, R. Kimmich; citation_volume=110; citation_publication_date=1994; citation_pages=136-136; citation_doi=10.1006/jmra.1994.1199; citation_id=CR23 citation_journal_title=J. Magn. Reson.; citation_author=H. Köstler, R. Kimmich; citation_volume=102; citation_publication_date=1993; citation_pages=177-177; citation_doi=10.1006/jmrb.1993.1080; citation_id=CR24 citation_inbook_title=High Resolution NMR Spectroscopy in Solids; citation_publication_date=1983; citation_id=CR25; citation_author=M. Mehring; citation_publisher=Springer citation_journal_title=Phys. Rev. Lett.; citation_author=D.E. Demco, J. Tegenfeldt, J.S. Waugh, R.R. Ernst; citation_volume=11; citation_publication_date=1975; citation_pages=4133-4133; citation_id=CR26 citation_journal_title=Phys. Rev. Lett.; citation_author=L. Müller, A. Kumar, T. Baumann, R.R. Ernst; citation_volume=32; citation_publication_date=1974; citation_pages=1402-1402; citation_doi=10.1103/PhysRevLett.32.1402; citation_id=CR27 citation_journal_title=J Chem. Phys.; citation_author=A. Pines, T.W. Shattuck; citation_volume=61; citation_publication_date=1974; citation_pages=1255-1255; citation_doi=10.1063/1.1682009; citation_id=CR28 citation_journal_title=Phys. Rev.; citation_author=H.T. Stokes, D.C. Ailion; citation_volume=15; citation_publication_date=1977; citation_pages=1271-1271; citation_doi=10.1103/PhysRevC.15.1271; citation_id=CR29 citation_title=Spin Temperature and Nuclear Magnetic Resonance in Solids; citation_publication_date=1970; citation_id=CR30; citation_author=M. Goldman; citation_publisher=Clarendon Press