Metal-proton interactions in palladium(II) and rhodium(I) complexes ofortho-alkylanilines |
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Authors: | Alastair J Nielson |
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Institution: | (1) Department of Inorganic Chemistry, Queen Mary College, Mile End Road, E1 4NS London, UK |
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Abstract: | Summary Reaction of 1 equivalent ofo-alkylaniline with Pd(OAc)2 gave the acetate bridged complexes Pd(OAc)2L]2. The*H n.m.r. spectra showed downfield shifts for theo-benzylic protons indicating an above-plane geometry involving a significant interaction with the metal orbitals. Similar interactions were found for Pd(OAc)2L2 and Pd(OAc)2L(L) (L= differento-alkylaniline; t-butylpyridineetc.) prepared from the dimer and for Rh(CO)2Cl(L) complexes. Theo-benzylic carbons of the palladium complexes did not show downfield shifts in the13C n.m.r. spectra. |
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