Pulsed NMR study of molecular motions an
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D. Vijayaraghavan; J. Ramakrishna
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Article
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1993
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Elsevier Science
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English
⚖ 715 KB
## Ah&r& -Proton spin-lattice relaxation time (TJ is measured in [N(CH,),]PbX, (X=Cl, Br, I) from 3CKt-77 K at 9.75 Ml-lx. All the compounds show discontinuous changes in Ti values (at 256,270 and 277 K, respectively), indicating phase transitions. Single Tr minimum is observed in all the cases an