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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Synthesis of metal complexes with a novel ethyldioxolane pendant-arm hexaazamacrocyclic ligand
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Synthesis of metal complexes with a novel ethyldioxolane pendant-arm hexaazamacrocyclic ligand

机译:新型乙基二氧戊环侧链六氮杂大环配体的金属配合物的合成

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摘要

The coordination capability of a pendant-arm azamacrocyclic ligand L with four ethyldioxolane pendant groups towards transition, post-transition and lanthanide metal ions was achieved. In all cases, complexes with a 2:1 metal:ligand molar ratio were obtained. The complexes were characterized by elemental analysis, MS-FAB, IR, conductivity measurements, H-1 and C-13 NMR spectroscopy. Crystal structures of [CoL][CoBr0.5(NO3)(3.5)] and [(H2O)H2L][Nd(NO3)(4)(H2O)(3)]NO3 center dot 3.5H(2)O have been determined. The [CoL](2+) cation contains the Co(II) ion endomacrocyclicly coordinated in a distorted octahedral geometry with a N-G core. The Nd(III) complex presents a mononuclear exomacrocyclic structure with an 11 coordination environment. pi,pi-Stacking interactions have been observed between the pyridine rings of the protonated ligand [(H2O)H2L](2+), and the [Nd(NO3)(4)(H2O)(3)](2-) anion.
机译:实现了具有四个乙基二氧戊环侧基的悬臂氮杂大环配体L对过渡,后过渡和镧系金属离子的配位能力。在所有情况下,均获得了金属与配体摩尔比为2:1的配合物。通过元素分析,MS-FAB,IR,电导率测量,H-1和C-13 NMR光谱对复合物进行表征。 [CoL] [CoBr0.5(NO3)(3.5)]和[(H2O)H2L] [Nd(NO3)(4)(H2O)(3)] NO3中心点3.5H(2)O的晶体结构为决心。 [CoL](2+)阳离子包含Co(II)离子,在环内以N-G核在扭曲的八面体几何结构中配位。 Nd(III)配合物呈现11配位环境的单核大环结构。在质子化配体[(H2O)H2L](2+)和[Nd(NO3)(4)(H2O)(3)](2-)阴离子的吡啶环之间观察到pi,pi-Stacking相互作用。

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