Anybody who know something about the temperature dependency of the proton Larmor frequency say for protons in pure water? I am sure people with experience in NMR spectroscopy know. Any good articles/references? I am not asking about: -temperature dep of the proton density beeing proportional to exp(-hbar omega/k_B T). I.e. the population difference between spin up/down. -temperature dep of relaxation effects (T_1 and T_2). E.g. line broadening effects. Stupido.