Novel organometallic building blocks for molecular crystal engineering. Part 4. Synthesis and characterization of mono- and bis-amido derivatives of [CoIII(η5-C5H4COOH)2]+ and their utilization as ligands
作者： Dario Braga , Marco Polito , Stefano L. Giaffreda , Fabrizia Grepioni
DOI: 10.1039/B505521K
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摘要: The synthesis and structural characterization of the hexafluorophosphate salts substituted bis-amido molecular complexes [CoIII(η5-C5H4CONHC4H3N2)2]+ (1), [CoIII(η5-C5H4CONHCH2C5H4N)2]+ (2), [CoIII(η5-C5H4CON(C5H4N)2)2]+ (3), amido-carboxyl [CoIII(η5-C5H4CON(C5H4N)2)(η5-C5H4COOH)]+ (4), [CoIII(η5-C5H4CONHC2N3(C5H4N)2)(η5-C5H4COOH)]+ (5) are reported. pyridyl pyrazine amido ligands on sandwich cores have been chosen because they allow both coordination to metal centres participation in hydrogen bonding. bonding interactions established by family solid state has investigated. utilization complex 5 for preparation complexes [Cd(NO3)2{CoIII(η5-C5H4CONHC2N3(C5H4N)(C5H4NH))(η5-C5H4COOH)}2]6+ (6) is reported as a first example potential mono-and bis-amides ligands. isolation carbonyl chloride cation [CoIII(η5-C5H4COCl)2]+ (7) its tetrachloro cobaltate anion salt also described.
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