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The synthesis of tripodal nitrogen donor ligands and their characterization as Pd(II)Me2 and Pd(II)IMe derivatives

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Byers, PK, Canty, AJ and Honeyman, RT 1990 , 'The synthesis of tripodal nitrogen donor ligands and their characterization as Pd(II)Me2 and Pd(II)IMe derivatives' , Journal of Organometallic Chemistry, vol. 385, No. 3 , pp. 417-427 , doi: 10.1016/0022-328X(90)85013-O.

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Abstract

New tripod ligands containing pyridin-2-yl (py), N-methylimidazol-2-yl (mim), and pyrazol-l-y1 (pz) groups have been made by addition of 2-bromopyridine to
deprotonated (py)(mim)CH2 or (mim)2CH2 to form (py)2(mim)CH and (py)(mim)2CH, or by simple condensation reactions of (pz)2CO with (mim)CHO or (py)CHO to form (pz)2(mim)CH and (pz)2(py)CH. The ligands may have general application in coordination and organometallic chemistry, especially bis(pyrazol-lyl)(pyridin-2-yl)methane [(pz)2(py)CH], which can be readily synthesized and is an unsymmetrical tripod closely related to (pz)3CH and (py)3CH. Dimethylpalladium(
II) and methyl(iodo)palladium(II) complexes of the ligands have been isolated, and compared with complexes of (pz)3CH, (py)3CH, and (pz)4C.

Item Type: Article
Authors/Creators:Byers, PK and Canty, AJ and Honeyman, RT
Journal or Publication Title: Journal of Organometallic Chemistry
ISSN: 0022-328X
DOI / ID Number: 10.1016/0022-328X(90)85013-O
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