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Solid-State NMR Spectroscopy - Experimental Equipment
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Solid-State NMR Spectroscopy
Structural Research
and Chemical Bonding
Matej Bobnar
Juri Grin
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Oliver Pecher (RWTH Aachen University)
Frank Haarmann (RWTH Aachen University)
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The system, the magnet:
Bruker AVANCE Ultra Shield 500 widebore
Magnetic field of 11.74 T
Our equipment comprises:
Static wide-line probes
- for high and low frequency measurements
- for high temperature measurements, up to T = 500 K
- for low temperature measurements, down to T = 4 K
Automatic Tuning Matching Goniometer (ATMG) probe systems [1]: special designed static wide-line probes for measurements of very wide frequency ranges, equipped with piezoelectric engines for automatic tuning and matching as well as an one-cycle goniometer for orientation dependent NMR measurements of magnetically aligned powder samples.
A double resonance probe for measurements of close frequencies [2].
Magic Angle Spinning (MAS) equipment for double and triple resonance probes:
- 4.0 mm (max. rotation frequency 15 kHz)
- 2.5 mm (max. rotation frequency 35 kHz)
- 2.5 mm (max. rotation frequency 35 kHz) for close frequencies [2]
- 1.3 mm (max. rotation frequency 70 kHz)
References:
[1] O. Pecher, F. Haarmann Z. Kristallogr. 2012, Suppl. 32, 24.
"The automatic Tuning Matching Goniometer (ATMG) probe system - mapping chemical questions using orientation dependent NMR experiments"
[2] J. Haase, N. J. Curro, C. P. Slichter J. Magn. Reson. 1998, 135, 273.
"Double Resonance Probes for Close Frequencies."
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