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首页> 外文期刊>Polyhedron: The International Journal for Inorganic and Organometallic Chemistry >Synthesis and structures of acetylferrocene thiosemicarbazones and their dimethylthallium(III) complexes, which have four- or five-membered chelate rings
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Synthesis and structures of acetylferrocene thiosemicarbazones and their dimethylthallium(III) complexes, which have four- or five-membered chelate rings

机译：具有四元或五元螯合环的乙酰基二茂铁硫代半氨基甲酮及其二甲基th（III）配合物的合成与结构

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摘要

Five thiosemicarbazones HL" Fc(Me)C(2)-N(3)-N(2)(H)-C(1)(S)-N(1)R-1 R-2 (Fc = ferrocenyl) were prepared by condensing acetylferrocene with thiosemicarbazide or 4-substituted thiosemicarbazides: acetylferrocene thiosemicarbazone (HL1), acetylferro-cene N-1-methylthiosemicarbazone (HL2), acetylferrocene N-1-phenylthiosemicarbazone (HL3) acetylferrocenc N-1-ethylthiosemicarbazone (HL4) and acetylterrocene N-1-dimethylthiosemicarbazone (HL5). All were characterized by IR and H-1 and C-13 NMR spectroscopy, and the Structures of HL3, HL4 and HL5 Were elucidated by X-ray crystallography. Reaction of dimethylthallium hydroxide with HL1-HL5 afforded complexes [TlMe2(L")]. X-ray studies of [TlMe2(L-2)], [Tl Me-2(L-3)(dmso)] (.) dmso, [TlMe2(L-4)] and [TlMe2(L-5)] showed them to vary considerably as regards the coordination mode of the ligand. (L-2) (-) and (L-4) (-) form four membered chelate rings via N(2) and S, and in the (L-2) (-) complex an additional weak Tl (. . .) S interaction increases the coordination number of the metal to five and links the molecules in chains. [TlMe2(L-4)] is the first thiosemicarbazone complex of TlMe2+ to have a coordination number of only four. In [TlMe2(L-3)(dmso)] (.) dmso the more usual N(3), S-chelating mode gives rise to a five membered chelate ring and there is ail additional weak bond with a dmso oxygen. (L-5)(-) is also N(3),S-chelating. but in this case dimers are formed by Sulfur bridges. The differences in coordination are reflected in the Tl-L" distances. (C) 2002 Elsevier Science Ltd. All rights reserved. [References: 40]
机译：五个硫代半脲酮HL“ Fc（Me）C（2）-N（3）-N（2）（H）-C（1）（S）-N（1）R-1 R-2（Fc =二茂铁基）通过将乙酰基二茂铁与硫代氨基脲或4-取代的硫代氨基脲缩合而制得：乙酰基二茂铁硫代半氨基甲磺酸（HL1），乙酰基二茂铁N-1-甲基硫代半碳酰胺（HL2），乙酰基二茂铁N-1-苯基硫代半碳脲（HL3）乙酰基二茂铁N-1乙基硫代N-1-二甲基硫代半胱氨酸（HL5）。分别用IR和H-1和C-13 NMR谱表征，并通过X射线晶体学阐明HL3，HL4和HL5的结构。氢氧化二甲基th与HL1-HL5的反应提供了配合物[TlMe2（L“）]。 [TlMe2（L-2）]，[TlMe-2（L-3）（dmso）]（。）dmso，[TlMe2（L-4）]和[TlMe2（L-5）]的X射线研究表明它们在配体的配位方式上有很大差异。 （L-2）（-）和（L-4）（-）通过N（2）和S形成四个成员的螯合环，并且在（L-2）（-）络合物中还有一个弱T1（...。 S的相互作用使金属的配位数增加至5，并将分子链接在一起。 [TlMe2（L-4）]是第一个TlMe2 +的硫半脲复合物，其配位数仅为4。在[TlMe2（L-3）（dmso）]（。）dmso中，N（3）更常见，S螯合模式会生成五元螯合环，并且还存在与dmso氧的其他弱键。 （L-5）（-）也是N（3），S螯合的。但是在这种情况下，二聚体是由硫桥形成的。协调的差异反映在Tl-L“距离上。（C）2002 Elsevier Science Ltd.保留所有权利。[参考文献：40]

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