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Reaction of 3-(2-methoxyphenyl)pyrazole with 1,2-bis(bromomethyl)benzene under phase-transfer conditions, followed by demethylation of the methoxyphenyl units with BBr 3 , affords the new ligand H 2 L in which two bidentate chelating units (pyrazolyl-phenol) are separated by a o-xylyl spacer. Reaction of H 2 L with [M(acac) 3 ] (M=Cr, Ru) afforded in each case two mononuclear...
Simple syntheses of the potentially tetradentate chelating ligands 6,6'-bis(3-pyrazolyl)-2,2'-bipyridine (H 2 L 1 ), and 6,6'-bis(2-hydroxyphenyl)-2,2'-bipyridine (H 2 L 2 ) are described: H 2 L 1 is a new ligand, whereas H 2 L 2 is known, but investigation of its coordination chemistry has been hampered by the lack of a simple synthesis...
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