Luminescent Alkynylplatinum(II) Complexes of 2,6-Bis(N-alkylbenzimidazol-2′-yl)pyridine-Type Ligands with Ready Tunability of the Nature of the Emissive States by Solvent and Electronic Property Modulation
作者:Anthony Yiu-Yan Tam、Wai Han Lam、Keith Man-Chung Wong、Nianyong Zhu、Vivian Wing-Wah Yam
DOI:10.1002/chem.200701914
日期:2008.5.19
the low-energy and moderately intense absorptions are assigned to an admixture of metal-to-ligand charge-transfer (MLCT) (dpi(Pt)-->pi*(R,R'-bzimpy)) and ligand-to-ligand charge-transfer (LLCT) (pi(C[triple chemical bond]C-R'')-->pi*(R,R'-bzimpy)) transitions. Upon variation of the electronic effects of the arylalkynyl ligands, vibronic-structured or structureless emission bands, originating from triplet
三齿双(N-烷基苯并咪唑-2'-基)吡啶(bzimpy),[Pt(R,R'-bzimpy)(C [三化学键] C-R''的新型发光炔基铂(II)配合物)] X(X = PF(6),OTf)及其氯前体配合物之一[Pt(R,R'-bzimpy)Cl] PF(6)进行了合成和表征; 炔基配合物之一也已经通过X射线晶体学进行了结构表征。电化学研究表明,氧化波本质上是基于炔基配体的,并且混合了一些基于金属中心的贡献,而两个准可逆的还原对主要是基于bzimpy的还原。还研究了配合物的电子吸收和发光性质。在解决方案中,高能和强吸收带被指定为bzimpy和炔基配体的pi-pi *配体(IL)跃迁,而低能和中等强度吸收被指定为金属与配体电荷的混合物。转移(MLCT)(dpi(Pt)-> pi *(R,R'-bzimpy))和配体到配体的电荷转移(LLCT)(pi(C [三化学键] C-R'') -> pi
Photophysics in solution and Langmuir–Blodgett film and vapochromic behavior of the Pt(ii) 2,6-bis(N-alkylbenzimidazol-2′-yl)pyridine complexes with different alkyl chains and counter anions
作者:Iswarya Mathew、Wenfang Sun
DOI:10.1039/b923203f
日期:——
A systematic photophysicalstudy, i.e. electronic absorption and emission study, on platinum(II) 2,6-bis(N-alkylbenzimidazol-2′-yl)pyridinecomplexes with different alkyl chains and different anions were performed in solutions and in Langmuir–Blodgett (LB) films. Electronic absorption in solution shows high-energy bands that are assigned to π,π* transitions within the ligand and a moderately intense
The invention relates to new compounds containing alkyl-alkoxy-cyano-borate anions, their preparation and their use, in particular as part of electrolyte formulations for electrochemical or optoelectronic devices.