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13C spin-relaxation times in some paramagnetic transition-metal acetylacetonate complexes. Importance of ligand-centred relaxation

✍ Scribed by David M. Doddrell; David T. Pegg; M.Robin Bendall; Hans P.W. Gottlieb; Anthony K. Gregson; Maurice Anker

Publisher
Elsevier Science
Year
1976
Tongue
English
Weight
352 KB
Volume
39
Category
Article
ISSN
0009-2614

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✦ Synopsis

r3C spin-lattice relaxation times have been measured for some of the ligand positions of some metal acetylacetonate complexes. The results suggest that the relaxation process is dominated by dipolar interactions with unpaired eiectron spin residing on the ligand. A simple analysis of ligand-centred dipolar relaxation is used to quantify its importance and it is demonstrated that spin density greater than 10v3 of an unpaired electron may be significant.

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