Ruthenium Terpyridine Complexes Containing a Pyrrole-Tagged 2,2′-Dipyridylamine Ligand—Synthesis, Crystal Structure, and Electrochemistry
作者:Kwong-Chak Cheung、Peng Guo、Ming-Him So、Zhong-Yuan Zhou、Lawrence Yoon Suk Lee、Kwok-Yin Wong
DOI:10.1021/ic202459g
日期:2012.6.18
Ruthenium(II) terpyridine complexes containing the pyrrole-tagged 2,2′-dipyridylamine ligand PPP (where PPP stands for N-(3-bis(2-pyridyl)aminopropyl)pyrrole with the general formula [Ru(tpy)(PPP)X]n+ (1, X = Cl–; 2, X = H2O; 3, X = CH3CN; tpy = 2,2′:6′,2″-terpyridine) have been synthesized and characterized by 1H NMR, IR, UV–vis, mass spectrometry, and elemental analysis. 1 and 2 have been structurally
含吡咯标记的2,2'-二吡啶胺配体PPP(其中PPP代表通式为[Ru(tpy)(PPP)的N-(3-双(2-吡啶基)氨基丙基)吡咯)的钌(II)吡啶吡啶配合物X] n +(1,X = Cl – ; 2,X = H 2 O; 3,X = CH 3 CN; tpy = 2,2':6',2''-吡啶)已合成并表征为1 H NMR,IR,UV-vis,质谱和元素分析。1和2已通过X射线晶体学进行了结构表征。1和2通过对PPP配体上的吡咯部分进行阳极氧化,成功地将它们固定在玻碳电极上,从而得到稳定且高度电活性的聚合物薄膜。乙腈中1的循环伏安研究表明,Ru III / Ru II对在0.4 V时相对于Cp 2 Fe + / 0最初,但在重复电势扫描时,在E 1/2 = 0.82 V时因乙腈取代氯而产生的另一氧化还原对。这种配体取代是由吡咯聚合过程中质子释放引起的酸性局部环境诱导的。在水介质中2的电聚合可以观察到Ru的形成IV