MAS-NMR at very high temperatures.
We report MAS-NMR experiments at temperatures of approx. 1200 K using a CO(2) laser as the heating device. An internal NMR thermometer based on the (7)Li T1 data of Li(0.24)La(0.54)TiO(3) is used for temperature calibration. Using this setup, temperatures as high as 1191 K could be reached under MAS conditions as confirmed by the melting of Li(2)B(4)O(7) at 1191 K which could be followed by (7)Li-MAS-NMR.
Max-Planck Institut für Festkörperforschung, Heisenbergstrasse 1, Stuttgart D-70569, Germany. wullen@uni-muenster.de
Leo
L
van Wüllen
Georg
G
Schwering
Ernst
E
Naumann
Martin
M
Jansen
D006358:Hot Temperature; D007834:Lasers; D018020:Lithium Compounds / Q000032:analysis* / Q000737:chemistry / Q000528:radiation effects*; D009682:Magnetic Resonance Spectroscopy / Q000379:methods*; D013113:Spin Labels; D013696:Temperature
D018020:Lithium Compounds; D013113:Spin Labels