𝔖 Bobbio Scriptorium
✦   LIBER   ✦

A 4-mm Probe for 13C CP/MAS NMR of Solids at 21.15 T

✍ Scribed by H.J. Jakobsen; P. Daugaard; E. Hald; D. Rice; E. Kupce; P.D. Ellis

Publisher
Elsevier Science
Year
2002
Tongue
English
Weight
122 KB
Volume
156
Category
Article
ISSN
1090-7807

No coin nor oath required. For personal study only.

✦ Synopsis

The design of a broadband 4-mm magic-angle spinning (MAS) X-1 H/ 19 F double resonance probe for cross-polarization (CP)/MAS NMR studies at 21.15 T ( 1 H at 900 MHz) is described. The highfrequency 1 H/ 19 F channel employs a new and efficient transmission line tuning design. The first 13 C CP/MAS NMR spectra recorded at 21.15 T have been obtained with this probe and exhibit the best S/N per milligram sample of hexamethylbenzene achieved so far for a 4-mm rotor.

📜 SIMILAR VOLUMES

1H, 13C, 15N, 113Cd, 2D 15N1H and solid-
1H, 13C, 15N, 113Cd, 2D 15N1H and solid-state 13C CP/MAS NMR of Hg and Cd complexes of 4(1H)-quinazolinone-2,3-dihydro-2-thioxo
✍ Francisco Javier Martínez-Martínez; Armando Ariza-Castolo; Victor Ramos-Nava; No 📂 Article 📅 1993 🏛 John Wiley and Sons 🌐 English ⚖ 323 KB

## Abstract The Cd(II) and Hg(II) complexes of 4(1H)‐quinazolinone‐2,3‐dihydro‐2‐thioxo (1) and the free ligand were studied by 1D and 2D multinuclear magnetic resonance in solution and ^13^C cross polarization magic angle spinning NMR in the solid state. Compound 1 adopts only one of five possible

13C CP/MAS NMR study of a phenyl group r
13C CP/MAS NMR study of a phenyl group rotation in the solid state using T1ρ, lineshape and 2D EXSY measurements
✍ Frank G. Riddell; Murray Bremner; John H. Strange 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 316 KB

## Abstract A combination of solid‐state ^13^C CP/MAS NMR methods was used to study the rates of rotation of the phenyl group in 3,5‐dimethyl‐1‐phenylhex‐1‐yn‐3‐ol. The methods used were __T__~1ρ~ measurements, lineshape analysis and 2D exchange spectroscopy over the temperature range 219–284 K. Th

Construction of a 28-mm 1H/13C probe and
Construction of a 28-mm 1H/13C probe and actively shielded Z-gradient set for operation in a 9.4 T/89 mm magnet
✍ Jan Pruski; Asif Ahmad; Ling Sun; Pierre-Marie L. Robitaille 📂 Article 📅 1994 🏛 John Wiley and Sons 🌐 English ⚖ 357 KB

## Abstract In this work, we present a new RF and gradient assembly for operation in a 9.4 Tesla 189 mm magnet. This assembly was designed in order to enable ^1^H‐NMR perfusion studies that are based on proton‐observed carbon‐edited approaches or gradient selected double quantum coherence. The RF p