NMR studies of ligand exchange reactions involving diolefin complexes of Rh1 and Ir1
β Scribed by K. Vrieze; H.C. Volger
- Book ID
- 103219498
- Publisher
- Elsevier Science
- Year
- 1968
- Tongue
- English
- Weight
- 139 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0022-328X
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π SIMILAR VOLUMES
Diaryl tellurides undergo rapid Iigand exchange and disproportionation reactions on treatment with phenyllithium at -78Β°C. Triaryltelluranes [lo-Te-3(C,)]-Li were identified as discrete intermediates during the reactions by '"Te, ' H , I3C, and CH-COSY N M R studies.
The kinetics of pyridine exchange on truns-[MO,(py),]' have been followed by 'H-NMR in CD,NO, for M = Re, Tc: k298/s-' = (5.5 i 0.1) x 0.04 i 0.02; A H #/kJmol-' = 11 1 f-3, 101 f 9; dSf/JK-'mol-' = +28 \* 10, +68 \* 35. For the ReV complex, pyridine and oxygen exchanges have been measured simultane