Molecular Tricorns: Self-Assembly of Trinuclear Palladium(II) Complexes
作者:Riccardo F. Carina、Alan F. Williams、Gérald Bernardinelli
DOI:10.1021/ic0009526
日期:2001.4.1
Cyclometalation of the ligand 1,3-bis(1-alkylbenzimidazol-2-yl)benzene (1) with palladium carboxylates leads to a trimeric complex [Pd(3)(ligand)(3)(carboxylate)(3)] (3). Studies in solution show that the trinuclear core is stable but that the carboxylates are labile, undergoing intra- and intermolecular exchange on an NMR time scale. The structural analogue of 1, 2,6-bis(1-alkylbenzimidazol-2-yl)pyridine
Cyclometalated Ir(<scp>iii</scp>) complexes [Ir(tpy)(bbibH<sub>2</sub>)Cl][PF<sub>6</sub>] and [Ir(tpy)(bmbib)Cl][PF<sub>6</sub>]: intramolecular π⋯π interactions leading to facile synthesis and enhanced luminescence
作者:Zhong-Ze Qu、Tai-Bao Gao、Jing Wen、Kai Rui、Haibo Ma、Deng-Ke Cao
DOI:10.1039/c8dt01922c
日期:——
for 1·PF6, 536 nm with Φ = 66.4% and τ = 2.94 μs for 2·PF6, and 558 nm with Φ = 27.0% and τ = 1.75 μs for 3·PF6. Moreover, both 1·PF6 and 2·PF6 exhibit a TFA-induced luminescence decrease. Based on the comparison among 1·PF6, 2·PF6 and 3·PF6, we discuss the influence of intramolecular π⋯π interactions and Nimidazole–H/Nimidazole–CH3 units in 1·PF6 and 2·PF6 on their syntheses and luminescence.
Highly Phosphorescent Iridium Complexes Containing Both Tridentate Bis(benzimidazolyl)-benzene or -pyridine and Bidentate Phenylpyridine: Synthesis, Photophysical Properties, and Theoretical Study of Ir-Bis(benzimidazolyl)benzene Complex
quasireversible Ir(III/IV) oxidation wave at +1.05 V, while the Ir complexes, [Ir(Mebib)(ppy)Cl], were oxidized at +0.42 V versus Fc/Fc+. The introduction of an Ir-C bond in [Ir(Mebib)(ppy)Cl] induces a large potential shift of 0.63 V in a negative direction. Further, the oxidation potential of [Ir(Mebib)(Rppy)X] was altered by the substitution of R, R', and X groups. Compared to the oxidation potential, the
新型混合配体Ir(III)配合物[Ir(L)(NwedgeC)X] n +(L = N / C / N或N / N / N; X = Cl,Br,I,CN,CH3CN或- CCPh; n = 0或1),其中N / CwedgeN =双(N-甲基苯并咪唑基)苯(Mebib)和双(N-苯基苯并咪唑基)苯(Phbib),N / N / N =双(N-甲基苯并咪唑基) )吡啶(Mebip),而N / C =苯基吡啶(ppy)衍生物。[Ir(Phbib)(ppy)Cl]和[Ir(Mebib)(mppy)Cl] [mppy = 5-甲基-2-(2'-吡啶基)苯基]的X射线晶体结构表明氮原子ppy配体中的ppy位于Me-或Phbib中的配位碳原子的反位,而ppy中的配位碳原子占据Cl的反位。[Ir(Mebip)(ppy)Cl] +在+1.05 V时显示出准可逆的Ir(III / IV)氧化波,而Ir络合
Cyclometalated ruthenium(<scp>ii</scp>) complexes with bis(benzimidazolyl)benzene for dye-sensitized solar cells
作者:Jiang-Yang Shao、Nianqing Fu、Wen-Wen Yang、Chun-Yu Zhang、Yu-Wu Zhong、Yuan Lin、Jiannian Yao
DOI:10.1039/c5ra20294a
日期:——
The length of alkyl chains on the benzimidazole rings of cyclometalated ruthenium dyes is critical to the DSSC performance.