Nonexponential nuclear magnetic relaxation of13C nuclei in liquid chloroform

摘要

By treating the13C nuclear magnetic relaxation in liquid chlorofom as a dominant13Cndash;1H dipolar interaction mechanism and considering the other interaction effects as lsquo;lsquo;leakagersquo;rsquo; relaxation terms, a general nonexponential decay was deduced with two relaxation timesTrsquo;1andT1in fair agreement with the experimental results. By use of this model, the13C spinhyphen;rotation relaxation time in liquid chloroform was estimated to be 1420 s at 30thinsp;deg;C.