Synthesis and characterisation of new platinum–acetylide complexes containing diimine ligands
Synthesis and characterisation of new platinum–acetylide complexes containing diimine ligands
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含二亚胺配体的新型铂-乙炔配合物的合成与表征
DOI：
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发表时间：
2000
期刊：
影响因子：
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通讯作者：
L. Yellowlees
中科院分区：
文献类型：
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作者：
C. Adams;S. James;Xiaoming Liu;P. Raithby;L. Yellowlees
在碘化铜(I)和二异丙胺存在下，[4,4'-双(叔丁基)-2,2'-联吡啶]二氯化铂[PtCl2(tBu2bipy)]1与末端炔烃HCCR发生脱卤化氢反应，合成了一类新的铂联吡啶化合物。产品[Pt(CCR)2(tBu2bipy)]（R = C6H4NO2-p2、C6H53、C6H4CH3-p4 或 SiMe35）已通过光谱和分析方法进行了表征，并对 4 进行了单晶分子结构测定。还进行了扩展 Huckel 分子轨道计算，结果用于帮助 合理化新化合物的伏安、EPR 和光谱电化学性质。这些表明化合物 3、4 和 5 经历了基于联吡啶的单电子氧化还原过程，但 2 具有位于硝基上的未解决的双电子过程。
A new class of platinum–bipyridyl compounds has been synthesized by the dehydrohalogenative reaction of [4,4′-bis(tert-butyl)-2,2′-bipyridyl]platinum dichloride [PtCl2(tBu2bipy)] 1 with terminal alkynes HCCR, in the presence of copper(I) iodide and diisopropylamine. The products [Pt(CCR)2(tBu2bipy)] (R = C6H4NO2-p2, C6H53, C6H4CH3-p4 or SiMe35), have been characterised by spectroscopic and analytical methods, and a single crystal molecular structure determination has been carried out on 4. Extended Huckel molecular orbital calculations have also been carried out, and the results are used to help rationalise the voltammetric, EPR and spectroelectrochemical properties of the new compounds. These show that compounds 3, 4 and 5 undergo a one-electron bipyridyl based redox process, but that 2 has an unresolved two-electron process located on the nitro groups.