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Relayed anisotropy correlation NMR: determination of dihedral angles in solids

✍ Scribed by Yoshitaka Ishii; Takehiko Terao; Masatsune Kainosho

Publisher
Elsevier Science
Year
1996
Tongue
English
Weight
558 KB
Volume
256
Category
Article
ISSN
0009-2614

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✦ Synopsis

A two-dimensional solid-state NMR method is proposed for determining the mutual orientation of the two interaction tensors in each of which a different chemical group participates, from which information on the dihedral angle can be extracted. The two-dimensional powder pattern was observed for 1,2-13C-labeled DL-alanine as a demonstration, correlating the L3C 1 chemical shift anisotropy and the L3C 2-I H dipolar coupling via polarization transfer. The O-C 1-C2-H dihedral angle as well as the orientation of the t3C 1 chemical shift tensor were determined from the spectrum.

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