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A Pd Halide Cluster from 1964: Pd6Cl8 Capped by Ring-Opened C3Ph3 Ligands from Oxidative Addition of Cyclopropenium Ions
Organometallics ( IF 2.5 ) Pub Date : 2017-08-28 00:00:00 , DOI: 10.1021/acs.organomet.7b00525
Christian Jandl 1 , Karl Öfele 1 , Alexander Pöthig 1
Affiliation  

On the basis of a protocol from 1964 on the reaction of K2PdCl4, triphenylcyclopropenium chloride, and ethylene, the product was now identified as a Pd6Cl8 cluster capped by μ3113-C3Ph3 ligands, [C3Ph3]2[Pd6Cl8(C3Ph3)2]. The ligand is formed in a two-step reaction involving first the partial reduction of Pd(II) to Pd(0) by ethylene and second the ring-opening oxidative addition of the cyclopropenium ion, leading to a rare binding mode with one allyl and two alkyl bonds. Although the structure was not recognized at that time, this compound represents the first isolated organometallic Pd cluster compound.

中文翻译:

1964年的Pd卤化物簇:Pd 6 Cl 8被环丙烯离子的氧化加成开环的C 3 Ph 3配体封端

上的协议的,从1964年K的反应的基础2的PdCl 4,triphenylcyclopropenium氯化物,和乙烯,将产物现在鉴定为钯68由μ封端簇31:η 1:η 3 -C 3 Ph 3配体,[C 3 Ph 3 ] 2 [Pd 6 Cl 8(C 3 Ph 32]。配体是通过两步反应形成的,该过程包括首先通过乙烯将Pd(II)部分还原为Pd(0),然后第二步进行环丙烯离子的开环氧化加成反应,从而导致与一个烯丙基和一个烯丙基的稀有结合模式。两个烷基键。尽管当时尚未识别出该结构,但该化合物代表了第一个分离出的有机金属Pd簇化合物。
更新日期:2017-08-28
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