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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Cycloaurated triphenylphosphine-sulfide and -selenide
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Cycloaurated triphenylphosphine-sulfide and -selenide

机译:环化的三苯基膦硫化物和硒化物

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The first examples of cycloaurated phosphine sulfides and triphenylphosphine selenide have been synthesised; these complexes are fairly rare examples of gold(III) complexes with potentially reducing sulfur- and selenium-donor ligands. The cycloaurated complex (AuCl2(2-C6H4P(S)Ph2) was synthesised in good yield by transmetallation of the organomercury precursor Hg(2-C6H4P(S)Ph2)2 with Me4N[AuCl4]. A route to the chloro-mercury analogue ClHg(2-C6H4P(S)Ph2) was developed by reaction of the cyclomanganated triphenylphosphine sulfide (CO)4Mn(2-C6H4P(S)Ph2) with HgCl2; this mercury substrate was also used in the synthesis of AuCl2(2-C6H4P(S)Ph2). The cycloaurated triphenylphosphine selenide complex AuCl2(2-C6H4P(Se)Ph2) was synthesised by an analogous methodology using the new phosphine selenide Hg(2-C6H4P(Se)Ph2)2 [prepared from Hg(2-C6H4PPh2)2 and elemental Se under sonication]. The phosphonamidic analogue AuCl2(2-C6H4P(S)(NEt2)2) has also been synthesised from PhP(S)(NEt2)2 via lithiation and mercuration. X-Ray crystal structures of several compounds are reported, and show the presence of puckered ring systems.
机译:已合成了环化膦硫醚和三苯基膦硒化物的第一个实例。这些配合物是具有潜在还原性硫和硒供体配体的金(III)配合物的罕见实例。通过将有机汞前体Hg(2-C6H4P(S)Ph2)2与Me4N [AuCl4]进行金属转移,可以高收率合成环链配合物(AuCl2(2-C6H4P(S)Ph2)。通过环化三苯基膦硫醚(CO)4Mn(2-C6H4P(S)Ph2)与HgCl2的反应生成ClHg(2-C6H4P(S)Ph2);该汞底物也用于合成AuCl2(2-C6H4P) (S)Ph2)。使用类似的方法,使用新的硒化膦Hg(2-C6H4P(Se)Ph2)2 [由Hg(2-制备),通过类似的方法合成了环化的三苯基膦硒化物络合物AuCl2(2-C6H4P(Se)Ph2) [C6H4PPh2)2和元素硒在超声处理下],磷酸化类似物AuCl2(2-C6H4P(S)(NEt2)2)也是由PhP(St)(NEt2)2经锂化和汞化合成的。报道了几种化合物,并显示了褶皱环系统的存在。

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