Synthesis, characterization, photophysics, and anion binding properties of platinum(<scp>ii</scp>) acetylide complexes with urea group
作者:Zhi-Hui Zhang、Jiewei Liu、Li-Qi Wan、Fang-Ru Jiang、Chi-Keung Lam、Bao-Hui Ye、Zhengping Qiao、Hsiu-Yi Chao
DOI:10.1039/c5dt00307e
日期:——
solid samples of complexes 3a–3d show orange light at 298 K. The anion binding properties of complexes 3a–3d have been studied by UV-vis titration experiments in CH3CN and DMSO. In general, the log K values of 3a–3d with the same anion in CH3CN depend on the substituent R on the acetylide ligand of 3a–3d and follow this order: R = NO2 (3d) > CF3 (3c) > Cl (3b) > H (3a). For the same complex with different
新型的具有脲基的乙炔铂(II)络合物[Pt(t Bu 3 tpy)(C CC 6 H 4 -4-NHC(O)NHC 6 H 4 -4-R)](OTf)(t Bu 3 tpy = 4,4',4''-三叔丁基-2,2':6',2''-叔吡啶; R = H(3a),Cl(3b),CF 3(3c) ,和NO 2(3d)),已经合成并表征。3a,3a · DMF·THF,3b ·的晶体结构通过X射线衍射测定了CH 3 CN和3c · CH 3 CN。在λ > 380 nm处激发后,配合物3a–3d的固体样品在298 K处显示橙色光。已经通过CH 3 CN和DMSO中的UV-vis滴定实验研究了配合物3a–3d的阴离子结合特性。通常,在CH 3 CN中具有相同阴离子的3a-3d的log K值取决于3a-3d乙炔配体上的取代基R并遵循以下顺序:R = NO 2(3d)> CF 3(3c)> Cl(3b)>