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Determination of ligand lifetimes in the Ni(glycerol)+ complex by proton NMR spin—lattice relaxation time measurements

✍ Scribed by Tomas Larsson; Jozef Kowalewski

Publisher
John Wiley and Sons
Year
1988
Tongue
English
Weight
239 KB
Volume
26
Category
Article
ISSN
0749-1581

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✦ Synopsis

The activation enthalpy and entropy for ligand exchange in the weak complex Ni(glycerol)i+ were estimated by variable-temperature proton spin-lattice relaxation time measurements at 9.4 and 6.3 T on a 0.044 molal solution of NiCI, in glyceroL A description of the dynamic process in terms of a simple two-site exchange model yields AHf = 18.4 & 1 kJ mol-' and AS' = -114 f 3 J mol-' K-'.

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