✦ LIBER ✦

NMR Lineshapes Arising from a Pair of Nonequivalent Homonuclear Spins in Magic-Angle-Spinning Experiments

✍ Scribed by G. Wu; R.E. Wasylishen

Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 573 KB
Volume: 102
Category: Article
ISSN: 1064-1858
DOI: 10.1006/jmra.1993.1089

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

Spinning Sidebands in Slow-Magic-Angle-S

Spinning Sidebands in Slow-Magic-Angle-Spinning NMR Spectra Arising from TightlyJ-Coupled Spin Pairs

✍ Gang Wu; Boqin Sun; Roderick E. Wasylishen; Robert G. Griffin 📂 Article 📅 1997 🏛 Elsevier Science 🌐 English ⚖ 153 KB

Complex spinning sidebands are observed in magic-angle-spinning (MAS) NMR spectra arising from isolated tightly J-coupled spin pairs under slow spinning conditions. Such spinning sidebands are sensitive to the magnitude and relative orientation of the chemical-shift tensors, the dipolar-coupling ten

A simple magic angle spinning NMR experi

A simple magic angle spinning NMR experiment for the dephasing of rotational echoes of dipolar coupled homonuclear spin pairs

✍ Terry Gullion; Shimon Vega 📂 Article 📅 1992 🏛 Elsevier Science 🌐 English ⚖ 460 KB

A simple NMR experiment for the dephasing of the rotational echo amplitudes of homonuclear dipolar coupled spin pairs in solids rotating at the magic angles is described. The dephasing is generated by n pulses applied synchronously with the sample rotation. One n pulse per rotor cycle is sufficient

Separation of a Pair of Interleaved Side

Separation of a Pair of Interleaved Sideband Families in Magic Angle Spinning NMR by a Pair of One-Dimensional Experiments

✍ S. C. Shekar; J. A. Hamilton 📂 Article 📅 1997 🏛 John Wiley and Sons 🌐 English ⚖ 222 KB

Interleaved sideband families that arise from distinct isotropic chemical shifts and the associated chemical shift anisotropy (CSA) tensors in magic angle spinning NMR are conventionally disentangled using two-dimensional schemes. However, for the case of just a pair of distinct chemical sites, a sc

NMR lineshapes of 13C nuclei directly bo

NMR lineshapes of 13C nuclei directly bonded to deuterium in solid state cross polarization magic-angle spinning experiments

✍ P. Jonsen; S.F. Tanner; A.H. Haines 📂 Article 📅 1989 🏛 Elsevier Science 🌐 English ⚖ 342 KB

The solid state "C NMR spectral lineshape of a carbon atom directly bonded to a quadrupolar nucleus can take the form of an asymmetric multiplet in magic-angle spinning experiments. In this study, we have obtained spectra at various B0 field strengths of a sugar molecule deuterated at a specific pos

A simple procedure for the determination

A simple procedure for the determination of the quadrupole interaction parameters and isotropic chemical shifts from magic angle spinning NMR spectra of half-integer spin nuclei in solids

✍ Günter Engelhardt; Hubert Koller 📂 Article 📅 1991 🏛 John Wiley and Sons 🌐 English ⚖ 410 KB

## Abstract A simple procedure is presented for the determination of the asymmetry parameter of the electric field gradient, the quadrupole coupling constant, the second‐order quadrupolar shift and the isotropic chemical shift of quadrupolar nuclei with half‐integer spin directly from the experimen