Dipolar NMR Spectrum of a Solid Narrowed by a Complex Molecular Motion

Complex dynamics of 1.3.5-trimethylbenzene-2.4.6-D3 studied by proton spin–lattice NMR relaxation and second moment of NMR line

“…(21)) can be written as [46][47][48][49] 3 is caused by the over the barrier jumps. Because cos 2 Θ 3 ¼cos 2 (120 0 )¼ 1/4, the first reduction, is higher than the second reduction.…”

Complex methyl groups dynamics in [(CH3)4P]3Sb2Br9 (PBA) from low to high temperatures by proton spin–lattice relaxation and narrowing of proton NMR spectrum

“…This is the case of the complex motion, each having its own correlation function determined by a different correlation time-t 3 , t T , t o , t iso . The correlation function and spectral density of this complex motion of R is relaxation vector can be derived in a simple way [29][30][31]:…”

Single‐crystal 2H NMR of deuterated 1,10‐decanedicarboxylic acid included in hydrogenated urea channels

“…This method has the advantage of giving information about the strength of the interaction 25 and about the dynamics without relying on any fine details of the lineshape. 26 The second moments were calculated by numerical integration after a precise baseline correction, using homemade programs written in Matlab  , and are presented in Fig. 4 as a function of temperature.…”