烯丙基環戊二烯基鈀是一種有機鈀化合物,化學式為(C5H5)Pd(C3H5)。它是紅色具有揮發性的化合物,有不愉快的氣味。它可溶於大部分有機溶劑,它是夾心型配合物,環戊二烯環與烯丙基配體將Pd夾在中間。[1]
製備
該配合物可由氯化烯丙基鈀二聚物和環戊二烯基鈉反應得到:[1][2]
- 2 C5H5Na + (C3H5)2Pd2Cl2 → 2 (C5H4)Pd(C3H5) + 2 NaCl
結構與反應
這個18電子配合物採取具有Cs對稱性的半夾心結構,即分子具有對稱平面。該配合物容易通過還原消除反應分解。
- C3H5PdC3H5 → Pd(0) + C5H5C3H5
該化合物易和異腈反應產生具有近似式[Pd(CNR)2]n的簇。 它與大體積的烷基膦反應生成二配位的鈀(0)配合物:[3]
- CpPd(allyl) + 2 PR3 → Pd(PR3)2 + C5H5C3H5
參考文獻
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