Homonuclear J-couplings and rotationally induced sideband enhancements in NMR spectra of rotating solids

D. P. Raleigh; G. S. Harbison; T. G. Neiss; J. E. Roberts; R. G. Griffin

doi:10.1016/0009-2614(87)80385-8

Homonuclear J-couplings and rotationally induced sideband enhancements in NMR spectra of rotating solids

D. P. Raleigh, G. S. Harbison, T. G. Neiss, J. E. Roberts, R. G. Griffin

Research output: Contribution to journal › Article › peer-review

83 Scopus citations

Abstract

We demonstrate direct detection of ¹³C-¹³C J-couplings in magic angle sample spinning NMR spectra despite the presence of the much larger homogeneous broadening caused by the homonuclear dipolar couplings. Carbon-carbon J-couplings were observed in doubly ¹³C-enriched samples of sodium acetate, glycine and glucose. The resolved J-coupling permits carbon-carbon connectivities to be established with standard two-dimensional techniques. Interesting spectral features are observed when the rotational sidebands of the coupled spins overlap: when a sideband from a dipolar-coupled pair approaches the centerband of its partner, a significant enhancement in sideband intensity is observed as well as small shifts in the resonance frequency.

Original language	English (US)
Pages (from-to)	285-290
Number of pages	6
Journal	Chemical Physics Letters
Volume	138
Issue number	4
DOIs	https://doi.org/10.1016/0009-2614(87)80385-8
State	Published - Jul 24 1987
Externally published	Yes

ASJC Scopus subject areas

General Physics and Astronomy
Physical and Theoretical Chemistry

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@article{fad14b3ea6e64a96838dfb40e6aba3ff,

title = "Homonuclear J-couplings and rotationally induced sideband enhancements in NMR spectra of rotating solids",

abstract = "We demonstrate direct detection of 13C-13C J-couplings in magic angle sample spinning NMR spectra despite the presence of the much larger homogeneous broadening caused by the homonuclear dipolar couplings. Carbon-carbon J-couplings were observed in doubly 13C-enriched samples of sodium acetate, glycine and glucose. The resolved J-coupling permits carbon-carbon connectivities to be established with standard two-dimensional techniques. Interesting spectral features are observed when the rotational sidebands of the coupled spins overlap: when a sideband from a dipolar-coupled pair approaches the centerband of its partner, a significant enhancement in sideband intensity is observed as well as small shifts in the resonance frequency.",

author = "Raleigh, {D. P.} and Harbison, {G. S.} and Neiss, {T. G.} and Roberts, {J. E.} and Griffin, {R. G.}",

note = "Funding Information: The authorsw ouldlike to thankD r. M.H. Levitt for helpful discussionsa nd for readingt he manuscript. This researchis supportedb y the National Instituteso f Health (GM-23403, GM-23289,R R-00995),a ndt heN ationalS cienceF oundation( solid statec hemistryD MR-8553275).D PR is supported by a PredoctoraFl ellowshipf rom the National Sci- enceF oundationW. e alsot hankM s. A. Lawthersfo r preparingt his manuscript.",

year = "1987",

month = jul,

day = "24",

doi = "10.1016/0009-2614(87)80385-8",

language = "English (US)",

volume = "138",

pages = "285--290",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier B.V.",

number = "4",

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TY - JOUR

T1 - Homonuclear J-couplings and rotationally induced sideband enhancements in NMR spectra of rotating solids

AU - Raleigh, D. P.

AU - Harbison, G. S.

AU - Neiss, T. G.

AU - Roberts, J. E.

AU - Griffin, R. G.

N1 - Funding Information: The authorsw ouldlike to thankD r. M.H. Levitt for helpful discussionsa nd for readingt he manuscript. This researchis supportedb y the National Instituteso f Health (GM-23403, GM-23289,R R-00995),a ndt heN ationalS cienceF oundation( solid statec hemistryD MR-8553275).D PR is supported by a PredoctoraFl ellowshipf rom the National Sci- enceF oundationW. e alsot hankM s. A. Lawthersfo r preparingt his manuscript.

PY - 1987/7/24

Y1 - 1987/7/24

N2 - We demonstrate direct detection of 13C-13C J-couplings in magic angle sample spinning NMR spectra despite the presence of the much larger homogeneous broadening caused by the homonuclear dipolar couplings. Carbon-carbon J-couplings were observed in doubly 13C-enriched samples of sodium acetate, glycine and glucose. The resolved J-coupling permits carbon-carbon connectivities to be established with standard two-dimensional techniques. Interesting spectral features are observed when the rotational sidebands of the coupled spins overlap: when a sideband from a dipolar-coupled pair approaches the centerband of its partner, a significant enhancement in sideband intensity is observed as well as small shifts in the resonance frequency.

AB - We demonstrate direct detection of 13C-13C J-couplings in magic angle sample spinning NMR spectra despite the presence of the much larger homogeneous broadening caused by the homonuclear dipolar couplings. Carbon-carbon J-couplings were observed in doubly 13C-enriched samples of sodium acetate, glycine and glucose. The resolved J-coupling permits carbon-carbon connectivities to be established with standard two-dimensional techniques. Interesting spectral features are observed when the rotational sidebands of the coupled spins overlap: when a sideband from a dipolar-coupled pair approaches the centerband of its partner, a significant enhancement in sideband intensity is observed as well as small shifts in the resonance frequency.

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DO - 10.1016/0009-2614(87)80385-8

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SN - 0009-2614

VL - 138

SP - 285

EP - 290

JO - Chemical Physics Letters

JF - Chemical Physics Letters

IS - 4

ER -

Homonuclear J-couplings and rotationally induced sideband enhancements in NMR spectra of rotating solids

Abstract

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