To use this
calculation fill out the proton frequency and the frequency difference
between two selected peaks depending from the thermometer (details see
below) and calculate the temperature according to the thermometer
Tris(trimethylsilyl)methane as an internal 13C chemical
shift thermometer including a nice literature overview: W. H.
Sikorski, A. W. Sanders, H. J. reich, Magn. Reson. Chem..1998, 36, S118- S124.