Research output: Contribution to journal › Article › peer-review
Measurement of the principal values of the anisotropic diffusion tensor in an unoriented sample by exploiting the chemical shift anisotropy : 19F PGSE NMR with homonuclear decoupling. / Dvinskikh, S. V.; Furó, I.
In: Journal of Magnetic Resonance, Vol. 148, No. 1, 01.01.2001, p. 73-77.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Measurement of the principal values of the anisotropic diffusion tensor in an unoriented sample by exploiting the chemical shift anisotropy
T2 - 19F PGSE NMR with homonuclear decoupling
AU - Dvinskikh, S. V.
AU - Furó, I.
PY - 2001/1/1
Y1 - 2001/1/1
N2 - NMR methods (S. V. Dvinskikh et al., J. Magn. Reson. 142, 102-110 (2000) and S. V. Dvinskikh and I. Furó, J. Magn. Reson. 144, 142-149 (2000)) that combine PGSE with dipolar decoupling are extended to polycrystalline solids and unoriented liquid crystals. Decoupling suppresses dipolar dephasing not only during the gradient pulses but also under signal acquisition so that the detected spectral shape is dominated by the chemical shift tensor of the selected nucleus. The decay of the spectral intensity at different positions in the powder spectrum provides the diffusion coefficient in sample regions with their crystal axes oriented differently with respect to the direction of the field gradient. Hence, one can obtain the principal values of the diffusion tensor. The method is demonstrated by 19F PGSE NMR with homonuclear decoupling in a lyotropic lamellar liquid crystal.
AB - NMR methods (S. V. Dvinskikh et al., J. Magn. Reson. 142, 102-110 (2000) and S. V. Dvinskikh and I. Furó, J. Magn. Reson. 144, 142-149 (2000)) that combine PGSE with dipolar decoupling are extended to polycrystalline solids and unoriented liquid crystals. Decoupling suppresses dipolar dephasing not only during the gradient pulses but also under signal acquisition so that the detected spectral shape is dominated by the chemical shift tensor of the selected nucleus. The decay of the spectral intensity at different positions in the powder spectrum provides the diffusion coefficient in sample regions with their crystal axes oriented differently with respect to the direction of the field gradient. Hence, one can obtain the principal values of the diffusion tensor. The method is demonstrated by 19F PGSE NMR with homonuclear decoupling in a lyotropic lamellar liquid crystal.
UR - http://www.scopus.com/inward/record.url?scp=0035744261&partnerID=8YFLogxK
U2 - 10.1006/jmre.2000.2208
DO - 10.1006/jmre.2000.2208
M3 - Article
C2 - 11133278
AN - SCOPUS:0035744261
VL - 148
SP - 73
EP - 77
JO - Journal of Magnetic Resonance - Series A
JF - Journal of Magnetic Resonance - Series A
SN - 1090-7807
IS - 1
ER -
ID: 48946026