Partial Molar Volumes and Refractions of Cobalt(III) Complexes, Part 2: Homologous Series of Nitrilopentaamminecobalt(III) Complexes
Journal of Solution Chemistry(2006)
摘要
Both the partial molar volumes ( V° 2 m refractions ( R° 2 m ) of the solutes at infinite dilution have been determined at 20 °C for a series of six octahedral N 6 -coordinated cobalt(III) species featuring five coordinated ammonia ligands along with a sixth N-coordinated organonitrile of increasing ligand size (from acetonitrile to sebaconitrile). The experimental values for V° 2 m are consistent with the relative sizes of the ligands but show larger values than those generated by computer modeling as the size of the cation increases, presumably due to the void space of the cation which increases with the size of the nitrile ligand.
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关键词
nitrile ligands,cobalt(III) complexes,molar volume,partial molar volume,molar refraction
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