Octupolar organometallic Pt(II) NCN-pincer complexes; Synthesis, electronic, photophysical, and NLO properties
作者:Guido D. Batema、Cornelis A. van Walree、Gerard P.M. van Klink、Celso de Mello Donegá、Andries Meijerink、Javier Perez-Moreno、Koen Clays、Gerard van Koten
DOI:10.1016/j.jorganchem.2017.12.028
日期:2018.7
compounds (i.e., the separate branches), suggesting that there is only a limited electronic interaction between these branches. The fluorescence Stokes shift, quantum yields and lifetimes of 1–3 also are of the same order of magnitude as those of stilbenoid Pt-Cl pincer compounds, indicating that a dipolar excited state is formed, which is localized on one of the three branches. The hyper-Rayleigh scattering
通过对母体[PtCl(NCN-CHO-4)](即1,3,5-tri)进行后修饰,合成了一系列有机金属八极1,3,5-取代的2,4,6-苯乙烯基-苯配合物-R-2,4,6-三[[4-(PtCl)(3,5-双[(二甲基氨基)甲基]苯乙烯基)]苯(NCN = [C 6 H 2(CH 2 NMe 2)2 -2 ,6] - ,其中R = OME,是H,Br(1 - 3),它们的合成涉及的三重Horner-Wadsworth-Emmons反应[氯铂酸(NCN-CHO-4)]与适当的三[(二乙氧基磷酰基)]甲基]苯衍生物195 Pt 11 H NMR化学位移反映了它所连接的π系统的电子性质。八极铂络合物的UV / Vis谱带相对于相应的Stilbenoid Pt-Cl钳形化合物(即,独立的分支)仅略有红移(5-12 nm),这表明只有有限的位移这些分支之间的电子交互。的荧光斯托克斯位移,量子产率和寿命1