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巢式十一顶铂硼烷簇合物的合成与晶体结构

Synthesis and Crystal Structure of the nido 11-Vertex Platinaborane Clusters

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【作者】 窦建民武立斌郭庆良李大成王大奇胡春华郑培菊

【Author】 DOU, Jian-Min*,a,b WU, Li-Bina GUO, Qing-Lianga LI, Da-Chenga WANG, Da-Qia HU, Chun-Huab ZHENG, Pei-Jub (a Department of Chemistry, Liaocheng University, Liaocheng 252059) (b Research Center of Analysis and Measurement, Fudan University, Shanghai 200433)

【机构】 聊城大学化学化工学院复旦大学分析测试中心复旦大学分析测试中心 聊城252059复旦大学分析测试中心上海200433聊城252059上海200433上海200433

【摘要】 [PtCl2(PPh3)2]与B10H12-0在异丙醇中回流反应,得到3个巢式十一顶铂十硼烷簇合物:[(PPh3)2PtB10H11-9-O-i-Pr](1),[(PPh3)2PtB10H10-8,10-(O-i-Pr)2](2)和[(PPh3)2PtB10H11-8-O-i-Pr](3).簇合物1~3都具有PtB10多面体骨架结构,其中Pt原子位于敞开的PtB4面上,且与4个B原子成键,每个Pt原子还与2个PPh3基团中的P原子成键.将溶剂热合成的方法引入到硼簇合物的合成中并进行同一反应,得到2个B10H21-0降解的巢式十一顶双铂九硼烷簇合物:[(PPh3)2(μ-PPh2)Pt2B9H6-3,9,11-(O-i-Pr)3](4)和[(PPh3)2(μ-PPh2)Pt2B9H6-3,9-(O-i-Pr)2-11-Cl](5).簇合物4和5都具有Pt2B9多面体骨架结构,2个Pt原子位于敞开的Pt2B3面上的相邻位置,且由一个PPh2基团桥连,每个Pt原子还与3个B原子和一个PPh3基团中的P原子成键.通过红外光谱、元素分析、X射线单晶衍射对5个簇合物进行了结构表征.

【Abstract】 Three nido 11-vertex platinaundecaborane clusters: [(PPh3)2PtB10H11-9-O-i-Pr] (1), [(PPh3)2PtB10H10-8,10-(O-i-Pr)2] (2) and [(PPh3)2PtB10H11-8-O-i-Pr] (3) were obtained from the reaction of [PtCl2(PPh3)2] with (Et4N)2B10H10 in i-PrOH under reflux conditions. They all have a nido 11-vertex PtB10 polyhedral skeleton, in which Pt atom lies on the open PtB4 face. Each Pt atom was connected with four B atoms and two P atoms of PPh3 ligand. Two novel B 10H 21 -0 deboronated nido 11-vertex diplatinaundecabo- ranes: [(PPh3)2(μ-PPh2)Pt2B9H6-3,9,11-(O-i-Pr)3] (4) and [(PPh3)2(μ-PPh2)Pt2B9H6-3,9-(O-i-Pr)2-11-Cl] (5) were obtained when the same reaction was carried out under solvothermal conditions. Cluster compounds 4 and 5 have a nido 11-vertex Pt2B9 polyhedral skeleton, in which two Pt atoms stay at neighbouring positions of the open Pt2B3 face and bridged by a PPh2 ligand. Each Pt atom was connected with three B atoms and a P atom of PPh3 ligand. They were characterized by IR spectroscopy, elemental analysis and single-crystal X-ray diffraction.

【基金】 国家自然科学基金(Nos.29873009,20371025)资助项目.
  • 【文献出处】 化学学报 ,Acta Chimica Sinica , 编辑部邮箱 ,2005年12期
  • 【分类号】O627.411
  • 【被引频次】11
  • 【下载频次】133
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