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The 3,5-Dichlorotrifluorophenyl Ligand, a Useful Tool for the Study of Coordination Modes and Dynamic Behavior of Complexes of Palladium and Platinum

✍ Scribed by M. Aránzazu Alonso; Juan A. Casares; Pablo Espinet; Jesús M. Martínez-Ilarduya; Celeste Pérez-Briso

Publisher
John Wiley and Sons
Year
1998
Tongue
English
Weight
310 KB
Volume
1998
Category
Article
ISSN
1434-1948

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✦ Synopsis

The square-planar complexes [MR 2 L 2 ] (M = Pd, Pt; R = 3,5-different ortho-fluorine signals and can be used to study the dynamic behavior of the mentioned complexes such as: a) C 6 Cl 2 F 3 ) [L 2 = OPPyPh 2 (Py = 2-pyridyl); SPPyPh 2 ; OPPy 2 Ph; DMBI (3,3Ј-dimethyl-2,2Ј-biindazole); OPPyPh(NHTol-p); p-Rotation of the R group in either Pd or Pt complexes, at the same or at different rates for each R groups depending on TolNPPy 2 Ph] have been prepared by treating cis-[MR 2 (THF) 2 ] (THF = tetrahydrofuran) with the appropriate the neutral ligand; and b) exchange of the coordination sites of the chelating ligand, either by Berry or by turnstile chelate ligands. The 19 F-NMR spectra of these complexes show the presence of intramolecular through-space F-F mechanisms. The activation parameters for some of the processes are given. couplings between ortho-fluorine atoms of nonequivalent R groups, which provide information for the assignment of the

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