P-Fluorous Phosphines as Electron-Poor/Fluorous Hybrid Functional Ligands for Precious Metal Catalysts: Synthesis of Rh(I), Ir(I), Pt(II), and Au(I) Complexes Bearing P-Fluorous Phosphine Ligands
P-Fluorous Phosphines as Electron-Poor/Fluorous Hybrid Functional Ligands for Precious Metal Catalysts: Synthesis of Rh(I), Ir(I), Pt(II), and Au(I) Complexes Bearing P-Fluorous Phosphine Ligands
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DOI：
10.3390/inorganics5010005
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发表时间：
2017-01
期刊：
影响因子：
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通讯作者：
S. Kawaguchi;Y. Saga;Yuki Sato;Yoshiaki Minamida;A. Nomoto;A. Ogawa
中科院分区：
文献类型：
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作者：
S. Kawaguchi;Y. Saga;Yuki Sato;Yoshiaki Minamida;A. Nomoto;A. Ogawa
全氟烷基团直接与磷原子键合的P-氟膦(R2PRf)是一种很有前途的配体，因为它具有杂化功能，即贫电子配体和氟配体。然而，P-氟膦-金属络合物的例子仍然很少见，最可能的原因是P-氟基团被认为显著降低了膦的配位能力。相反，我们已经成功地合成了一系列P-氟膦配位的金属络合物，如Rh、Ir、铂和金。此外，通过PtCl2(Ph2PnC10F21)2的X-射线分析和RhCl(CO)(R2PnC10F21)2的红外CO伸缩频率研究了R2PnC10F21的电子性质，并证明了IrCl(CO)(Ph2PnC10F21)2-和AuCl(R2PnC10F21)催化的反应。
P-Fluorous phosphine (R2PRf), in which the perfluoroalkyl group is directly bonded to the phosphorus atom, is a promising ligand because it has a hybrid functionality, i.e., electron-poor and fluorous ligands. However, examples of P-fluorous phosphine–metal complexes are still rare, most probably because the P-fluorous group is believed to decrease the coordination ability of the phosphines dramatically. In contrast, however, we have succeeded in synthesizing a series of P-fluorous phosphine–coordinated metal complexes such as rhodium, iridium, platinum, and gold. Furthermore, the electronic properties of R2PnC10F21 are investigated by X-ray analysis of PtCl2(Ph2PnC10F21)2 and the infrared CO stretching frequency of RhCl(CO)(R2PnC10F21)2. IrCl(CO)(Ph2PnC10F21)2- and AuCl(R2PnC10F21)-catalyzed reactions are also demonstrated.