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Molecular Motions and Polymorphic Phase Transitions in (CH3)4NClO4, and (CH3), NHCl04 as Studied by NMR

✍ Scribed by Jurga, S.


Book ID
105377365
Publisher
John Wiley and Sons
Year
1984
Tongue
English
Weight
560 KB
Volume
81
Category
Article
ISSN
0031-8965

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## 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