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dc.contributor.authorZheng, SK
dc.contributor.authorChen, Z
dc.contributor.author陈忠
dc.contributor.authorChen, ZW
dc.contributor.authorZhong, JH
dc.date.accessioned2012-06-04T00:56:06Z
dc.date.available2012-06-04T00:56:06Z
dc.date.issued2001
dc.identifier.citationCHINESE PHYSICS,2001,10(6):558-563zh_CN
dc.identifier.issn1009-1963
dc.identifier.urihttps://dspace.xmu.edu.cn/handle/2288/12608
dc.description.abstractA one-dimensional NMR method is presented for measuring the transverse relaxation time, T-2,(n), of intermolecular multiple quantum coherences (IMQCs) of coherence order n, in highly polarized spin systems. The pulse sequence proposed in this paper effectively suppresses the effects of radiation damping, molecular diffusion, inhomogeneity of magnetic field, and variations of dipolar correlation distance, all of which may affect quantitation of T2,n This pulse sequence can be used to measure not only IMQC transverse relaxation time T2,(n)(n > 1) quickly and directly, but also the conventional transverse relaxation time. Experimental results demonstrate that the quantitative relationship between T-2,(n)(n > 1) and T-2 is T-2,(n) approximate to T-2/n. These results will be helpful for understanding the fundamental properties and mechanisms of IMQCs.zh_CN
dc.language.isoenzh_CN
dc.publisherGORDON BREACH PUBLISHING, TAYLOR & FRANCIS GROUPzh_CN
dc.subjectnuclear magnetic resonancezh_CN
dc.subjectintermolecular multiple quantum coherenceszh_CN
dc.subjecttransverse relaxation timezh_CN
dc.subjectpulsed field gradientzh_CN
dc.titleDirect measurement of transverse relaxation time of intermolecular multiple quantum coherences in NMRzh_CN
dc.typeArticlezh_CN


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