Pt(II) Bipyridyl Complexes Bearing Substituted Fluorenyl Motif on the Bipyridyl and Acetylide Ligands: Synthesis, Photophysics, and Reverse Saturable Absorption
作者:Rui Liu、Yuhao Li、Jin Chang、Eric R. Waclawik、Wenfang Sun
DOI:10.1021/ic500646r
日期:2014.9.15
410 nm for these complexes is assigned to predominantly 1π,π* transitions localized on either the bipyridine or the acetylide ligands; while the broad low-energy absorption bands between 420 and 575 nm are attributed to essentially 1MLCT (metal-to-ligand charge transfer)/1LLCT (ligand-to-ligand charge transfer) transitions, likely mixed with some 1ILCT (intraligand charge transfer) transition for Pt-4–Pt-7
在联吡啶或乙炔配体上具有苯并噻唑基芴基(BTZ-F 8),二苯氨基芴基(NPh 2 -F 8)或萘二甲酰基芴基(NI-F 8)的一系列Pt(II)二亚胺配合物(Pt-4 – Pt-8)(即4,4'-bis [7-R 1 -F 8-(≡)n- ] bpy} Pt(7-R 2 -F 8 -≡-)2,其中F 8 = 9 9'-二(2-乙基己基)芴,bpy = 2,2'-联吡啶,Pt-4:R 1 = R 2 = BTZ,n = 0; Pt-5:R 1= BTZ,R 2 = NI,n = 0;Pt-6:R 1= R 2= BTZ,n= 1;n= 1。Pt-7:R 1= BTZ,R 2= NPh 2,n= 1;Pt-8:R 1 = NPh 2,R 2 = BTZ,n= 1)被合成。系统地研究了它们的基态和激发态性质以及反向饱和吸收性能。通过光谱方法研究了这些基序对配合物光物理的影响,并通过时变密度泛