NMR Spectra Terminology
Increasing field (Bo)
Increasing frequency (u)
Increasing g
Increasing energy (E, consistent with UV/IR)
1H
13C
2H
600 MHz
150 MHz
92 MHz
TMS
CHCl3
7.27                                  0             ppm
increasing d                    decreasing d
low field                           high field
down field                        up field
high frequency (u)           low frequency
de-shielding                     high shielding
Paramagnetic                  diamagnetic