Synthesis and electronic properties of mononuclear osmium(II) and rhenium(I) complexes containing ligands derived from [2,3-a:3′,2′-c]dipyridophenazine (ppb)
作者:Matthew I.J Polson、Sarah L Howell、Amar H Flood、Anthony K Burrell、Allan G Blackman、Keith C Gordon
DOI:10.1016/j.poly.2004.02.012
日期:2004.5
7-chloro-2,3-di-(2-pyridyl)quinoxaline, 2,3-di-(2-pyridyl)benzo[g]quinoxaline, 4-methyl-di-(2-pyridyl)quinoxaline) have also been prepared and studied. The electronic spectra of the Os and Re complexes are dominated by strong MLCT transitions. The lowest energy MLCT transitions correlate linearly with the first reduction potential for the [Os(L)(bpy)2]2+ series. Electrochemical oxidation of the [Os(L)(bpy)2]2+
摘要报道了一种改进的合成吡啶基配体[2,3-a:3',2'-c]双吡啶吩嗪(ppb)的方法。此外,新的基于ppb的配体L(L = [2,3-a:3',2'-c] dipyridophenazine,[2,3-a:3',2'-c] dipyrido- 6,7-二甲基吩嗪,[2,3-a:3',2'-c]双吡啶-6,7-二氯吩嗪,[2,3-a:3',2'-c] dipyrido [1,2- e]苯甲吩嗪,[2,3-a:3',2'-c:3“,2” -e]三吡咯并喹喔啉和[2,3-a:3',2'-c]双吡啶-5-甲基吩嗪)详细。已合成了复合物[Os(ppb)(bpy)2] 2+和[Os(L)(bpy)2] 2+,并测量了它们的电化学,电子吸收和UV-Vis光谱化学性质。ac(I)配合物fac- [Re(L'')(CO)3Cl](L''= [2,3-a:3',2'-c] dipyridophenazine,[2