Multiple Quantum NMR Dynamics in Spin Systems in Dipolar Ordered State
Abstract
Multiple quantum (MQ) NMR dynamics in a system which was prepared initially in dipolar ordered state is investigated with analytical and numerical methods for linear open chains of nuclear spins 1/2 coupled by dipole-dipole interactions. We show that the phases of the signals of MQ coherences are shifted by p/2 with respect to the signals of the ordinary MQ NMR experiment. The sum of the intensities of MQ coherences of arbitrary opposite orders in this experiment is equal to zero. Many-spin correlations are created faster in the such experiments and can be used for investigations of many-spin dynamics of nuclear spins in solids.
Keywords
multiple quantum NMR spin dynamics,
multiple quantum coherences,
density matrix,
high temperature approximation,
dipolar ordered state
Supporting agencies: We are grateful for financial support for this work through a grant from the Russian Foundation for Basic Researches (grant no. 04-03-32528).
About the Authors
S. I. Doronin
Institute of Problems of Chemical Physics of RAS
Russian Federation
Russian Federation
Chernogolovka, 142432
E. I. Kuznetsova
Institute of Problems of Chemical Physics of RAS
Russian Federation
Russian Federation
Chernogolovka, 142432
E. B. Feldman
Institute of Problems of Chemical Physics of RAS
Russian Federation
Russian Federation
Chernogolovka, 142432
S. D. Goren
Department of Physics, Ben Gurion University
Israel
Israel
Beer Sheva 84105
G. B. Furman
Department of Physics, Ben Gurion University
Israel
Israel
Beer Sheva 84105
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Review
For citations:
Doronin S.I., Kuznetsova E.I., Feldman E.B., Goren S.D., Furman G.B. Multiple Quantum NMR Dynamics in Spin Systems in Dipolar Ordered State. Magnetic Resonance in Solids. 2006;8(1):10-14.
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