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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Lanthanide(III)and group 13 metal ion complexes of tripodal amino phosphinate ligands
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Lanthanide(III)and group 13 metal ion complexes of tripodal amino phosphinate ligands

机译:三脚氨基次膦酸酯配体的镧系元素(III)和13族金属离子配合物

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摘要

The tripodal amino-phosphinate ligands,tris(4-(phenylphosphinato)-3-benzyl-3-azabutyl)amine(H_3ppba centre dot 2HCl centre dot H_2O)and tris(4-(phenylphosphinato)-3-azabutyl)amine(H_3ppa centre dot HCl centre dot H_2O)were synthesized and reacted with Al~(3+),Ga~(3+),In~(3+)and the lanthanides(Ln~(3+)).At 2:1 H_3ppba to metal ratios,complexes of the type [M(H_3ppba)_2]~(3+)(M = Al~(3+),Ga~(3+),In~(3+),Ho~(3+)-Lu~(3+))were isolated.The bicapped [Ga(H_3ppba)_2](NO_3)_2Cl centre dot 3CH_3OH was structurally characterized and was shown indirectly by various techniques to be isostructural with the other [M(H_3ppba)_2]~(3+)complexes.Also,at 2:1 H_3ppba to metal ratios,complexes of the type [M(H_4ppba)_2]~(5+)(M = La~(3+)-Tb~(3+))were characterized,and the X-ray structure of [Gd(H_4ppba)_2](NO_3)_4Cl centre dot 3CH_3OH was determined.At 1:1 H_3ppba to metal ratios,complexes of the type [M(H_4ppba)]~(4+)(M = La~(3+)-Er~(3+))were isolated and characterized.Elemental analysis and spectroscopic evidence supported the formation of a 1:1 monocapped complex.Reaction of 1:1 ratios of H_3ppa with Ln~(3+)and In~(3+)yielded complexes of the type [M(H_3ppa)]~(3+)(M = La~(3+)-Yb~(3+))but with Ga~(3+),complex of the type [Ga(ppa)] centre dot 3H_2O was obtained.Reaction of 1:1 ratios of H_3ppa with Ln~(3+)and In~(3+)yielded complexes of the type [M(H_3ppa)]~(3+)(M = La~(3+)-Yb~(3+))but with Ga~(3+)a neutral complex [Ga(ppa)] centre dot 3H_2O was obtained.The formation of an encapsulated 1:1 complex is supported by elemental analysis and spectroscopic evidence.
机译:三脚架氨基次膦酸酯配体三(4-(苯基膦酸酯)-3-苄基-3-氮杂丁基)胺(H_3ppba中心点2HCl中心点H_2O)和三(4-(苯基膦酸酯)-3-氮杂丁基)胺(H_3ppa中心)合成了HCl的中心点H_2O并与Al〜(3 +),Ga〜(3 +),In〜(3+)和镧系元素(Ln〜(3+))反应。在2:1的H_3ppba下生成金属比,[M(H_3ppba)_2]〜(3+)类型的络合物(M = Al〜(3 +),Ga〜(3 +),In〜(3 +),Ho〜(3 +)-Lu分离了〜(3+))。对二元[Ga(H_3ppba)_2](NO_3)_2Cl中心点3CH_3OH进行了结构表征,并通过各种技术间接证明了其与其他[M(H_3ppba)_2]〜( 3+)络合物。另外,在金属比为2:1的H_3ppba下,类型为[M(H_4ppba)_2]〜(5 +)(M = La〜(3 +)-Tb〜(3+))的络合物表征,并确定了[Gd(H_4ppba)_2](NO_3)_4Cl中心点3CH_3OH的X射线结构。在金属比1:1的H_3ppba下,[M(H_4ppba)]〜(4+)型络合物分离并表征了(M = La〜(3 +)-Er〜(3+))。元素分析和光谱证据支持了1:1单峰络合物的形成。H_3ppa与Ln〜(3+)和In〜(3+)产生的[M(H_3ppa)]〜(3+)型络合物的1:1反应(M = La〜(3 +)-Yb〜(3+)),但在Ga〜(3+)的作用下,得到[Ga(ppa)]中心点3H_2O类型的络合物。H_3ppa的比例为1:1用Ln〜(3+)和In〜(3+)产生[M(H_3ppa)]〜(3 +)(M = La〜(3 +)-Yb〜(3+))类型的配合物得到〜(3+)中性配合物[Ga(ppa)]中心点3H_2O。元素分析和光谱学证据支持了包封的1:1配合物的形成。

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