NMR Spectrometer

Location: NMR Lab
Responsibles: Pedro Marques de Almeida and Marta Corvo

The NMR laboratory is equipped with a multinuclear nuclear magnetic resonance spec-trometer, Bruker AVANCE III, capable of operating at temperatures as high as 500 ºC and resonance frequencies up to 300 MHz, depending on the observed nucleus. With the different existing probe heads it is possible to perform chemical and structural analy-sis as well as molecular dynamics of different materials, both in the solid and liquid states, in particular polymeric materials. With in-house built accessories, it is also possi-ble to couple rheometric techniques with the NMR (Rheo-NMR), which allows rheolog-ical and fluid dynamic studies on a small scale, and valuable information regarding the structure/properties relationships to be obtained. Lately the NMR laboratory has ac-quired micro-imaging and diffusion facilities, which have become well-established methods in the study of complex materials, as hard porous systems (rocks, sands, com-posites), plant and animal materials (tissues or organs), and living materials (mice, in-sects).

- Magnet Bruker 300MHz 7,2 T wide bore (1H frequency: 300.13 MHz)
- Console Bruker Avance III
- 2-channel digital
- Gradient: GRASP IIP
- Amplifiers of low (100W and 300W) and high (1000W) power for liquids and solids;
- Gradient amplifier of high power (60A – 1500G/cm) for diffusion and microimaging;
- Temperature control BVT 3000.
- Software: Topspin 3.2 (for spectroscopy) and Paravision 5.1 (for microimaging).
- Probes
- Liquid state 13C/1H/2H 5mm dual probe (VT);
- Liquid state BB/1H/2H 10mm broadband probe (VT);
- Solid State MAS/CP/HPD, 4mm/15 kHz probe (VT), with a frequency range of 40-300MHz;
- High power wide line 1H 5mm probe;
- High power wide line 1H 10mm probe;
- Diffusion probe Diff30 (60A/1500 G/cm) for 1H and 7Li;
- Microimaging probe PH Micro 2.5 with 1H and 2H inserts.