Proton Magnetic Resonance Study of the Amino Group of Thioacetamide (TA) ￥°. Quadrupole Relaxation Effects in NH2 of Thioacetamide

摘要

Nitrogen-14 quadrupolar relaxation has been observed in the amino proton nmr spectra of TA in acetone and methanol solutions over the temperature range -83∩ to +35∩. The proton nmr lineshapes were analyzed to yield a 14N spin lattice relaxation time (T1)N as a function of temperature. Activation energies and correlation times at 25∩ for the molecular reorientation in the two solution phases have been calculated and the results are discussed.