首页> 外文期刊>Journal of chemical crystallography >Synthesis, X-ray Crystallographic, Electrochemical, and Spectroscopic Studies of Bis-(1,10-phenanthroline)(2,2'-bipyridine)cobalt(III) Hexafluorophosphate
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Synthesis, X-ray Crystallographic, Electrochemical, and Spectroscopic Studies of Bis-(1,10-phenanthroline)(2,2'-bipyridine)cobalt(III) Hexafluorophosphate

机译:双-(1,10-菲咯啉)(2,2'-联吡啶)钴(III)六氟磷酸酯的合成,X射线晶体学,电化学和光谱研究

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摘要

The synthesis, X-ray crystallographic, electrochemical, and spectroscopic studies of bis-(1,10-phenanthroline)(2,2'-bipyridine)cobalt(III) hexafluorophosphate with acetone solvent of crystallization ([Co(phen)(2)(bpy)](PF6)(3)center dot 1.6(CH3)(2)CO) is reported. The compound crystallized in a monoclinic space group P2(1) with a = 13.215(3) , b = 17.823(4) , c = 19.823(4) , beta = 96.80(3)A degrees and V = 4636.1(16) (3) with Z = 4. The cobalt(III) metal center has a slightly distorted octahedral geometry. 1,10-Phenanthroline and 2,2'-bipyridine ligands were generally planar, and did not exhibit pi-pi overlap. The packing of the cations was stabilized by hydrogen bonding with hexafluorophosphate anions. The electrochemical studies revealed the Co-III/II, Co-II/I and Co-I/0 redox couples at E (1/2) = +0.32, -0.91 and -1.61 V (vs AgCl/Ag) respectively in acetonitrile. Co-59 NMR spectroscopic studies revealed that the [Co(phen)(2)(bpy)](PF6)(3)center dot 0.5(C2H5)(2)O species has a chemical shift of 6900 ppm in DMSO-d (6).
机译:双(1,10-菲咯啉)(2,2'-联吡啶)钴(III)六氟磷酸盐钴(III)的结晶,丙酮溶剂的合成,X射线晶体学,电化学和光谱学研究报告(bpy)](PF6)(3)中心点1.6(CH3)(2)CO)。该化合物在单斜空间群P2(1)/ n中结晶,其中a = 13.215(3),b = 17.823(4),c = 19.823(4),β= 96.80(3)A度和V = 4636.1(16) )(3),Z =4。钴(III)金属中心的八面体几何形状略有变形。 1,10-菲咯啉和2,2'-联吡啶配体通常是平面的,没有pi-pi重叠。阳离子的堆积通过与六氟磷酸根阴离子的氢键键合而稳定。电化学研究表明乙腈中E(1/2)= + 0.32,-0.91和-1.61 V(vs AgCl / Ag)的Co-III / II,Co-II / I和Co-I / 0氧化还原对。 Co-59 NMR光谱研究表明[Co(phen)(2)(bpy)](PF6)(3)中心点0.5(C2H5)(2)O物种在DMSO-d中的化学位移为6900 ppm( 6)。

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