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首页> 外文期刊>Zeitschrift fur Anorganische und Allgemeine Chemie >Organotin Complexes of Alizarin and Purpurin
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Organotin Complexes of Alizarin and Purpurin

机译:茜素和紫嘌呤的有机锡复合物

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摘要

Five novel organotin complexes with the anthraquinone dyes alizarin (1,2-dihydroxyanthraquinone) and purpurin (1,2,4-trihydroxyanthraquinone) were synthesized and characterized by elemental analyses, FTIR and NMR spectroscopy (H-1, C-13 and Sn-119). The crystal and Molecular structures Of four complexes were determined by X-ray diffraction on single crystals: [Bu2Sn(aliz)(H2O)]center dot C2H5OH (A1 center dot EtO H), [Bu2Sn(aliz)(dmso)](2) (A3), [(Bu2Sn)(3)O(Hpurp)(2)] (P1) and [Bu2Sn(Hpurp)(dmso)](2) (P2), where H(2)aliz = alizarin and H(3)purp = purpurin. The coordination mode of the ligands is identical to that found in their Al/Ca complexes, where they act as dianionic tridentate ligands forming five and six-membered fused chelate rings. The coordination to the tin atoms occurs exclusively via the 1,2- phenolate oxygen and the adjacent quinoid oxygen atoms. The complexes A1, A3 and P1 are dimers with hepta-coordinated tin atoms in form of a slightly distorted pentagonal bipyramid. The trinuclear complex P2 contains two pentacoordinated and one heptacoordinated tin atoms.
机译:合成了五种新颖的有机锡配合物,分别与蒽醌染料茜素(1,2-二羟基蒽醌)和紫嘌呤(1,2,4-三羟基蒽醌)结合,并通过元素分析,FTIR和NMR光谱(H-1,C-13和Sn- 119)。通过单晶的X射线衍射确定四种配合物的晶体和分子结构:[Bu2Sn(aliz)(H2O)]中心点C2H5OH(A1中心点EtO H),[Bu2Sn(aliz)(dmso)](2 )(A3),[(Bu2Sn)(3)O(Hpurp)(2)](P1)和[Bu2Sn(Hpurp)(dmso)](2)(P2),其中H(2)aliz =茜素和H (3)purp =紫嘌呤。配体的配位模式与其在Al / Ca络合物中的配位模式相同,在配位模中它们充当形成五元和六元稠合螯合环的双阴离子三齿配体。与锡原子的配位仅通过1,2-酚盐氧和相邻的醌氧原子发生。络合物A1,A3和P1是具有七配位锡原子的二聚体,其形式为稍微扭曲的五边形双锥体。三核配合物P2包含两个五配位和一个七配位的锡原子。

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