Platinum complexes with a methoxy-amino phosphine or a nitrogen-containing bis(phosphine) ligand. Synthesis, characterization and application to hydrogenation of trans -cinnamaldehyde
作者:Ioannis D. Kostas、Georgia Antonopoulou、Constantinos Potamitis、Catherine P. Raptopoulou、Vassilis Psycharis
DOI:10.1016/j.jorganchem.2016.11.036
日期:2017.1
geometry, independently of the reaction temperature. Synthesis of a platinum complex with the second ligand at room temperature, afforded a mixture comprising 86% of a neutral cis complex, in which the ligand is bound to the metal only via the two P-donors, and 14% of a P,N,P-terdentate ionic complex where the two P atoms are trans to each other. On the other hand, synthesis of the complex at 100 °C, led
已经合成了具有甲氧基-氨基膦或乙烯连接的含氮双(膦)配体的铂配合物,并通过光谱学和晶体学研究对其进行了充分表征。第一配体以P,N-双配位方式和顺式几何结构与金属结合,与反应温度无关。在室温下合成具有第二个配体的铂配合物,得到的混合物包含86%的中性顺式配合物,其中配体仅通过两个P-给体与金属结合,以及14%的P,N,P-齿离子络合物,其中两个P原子为跨到对方。另一方面,在100℃下合成该络合物几乎完全导致以P,P-双配位模式形成顺式-Pt络合物。测试该络合物作为催化剂,在温和的反应条件下,不使用任何促进添加剂进行反式肉桂醛的氢化反应,并显示出高达67%的肉桂醇选择性。