合成了具有柔性桥的新双核炔基铂(II)吡啶基配合物,并通过1 H NMR,质谱和元素分析对其进行了表征。这些化合物可通过多种分子间相互作用(例如金属-金属(Pt⋯Pt)和π-π堆积相互作用,氢键相互作用和范德华力)而胶凝各种有机溶剂,这些现象已被紫外可见(UV- vis)吸收光谱,流变学,温度依赖性1 H NMR光谱,X射线衍射(XRD)和傅立叶变换红外(FT-IR)光谱。此外,化合物1b具有更长的柔性桥(–O(CH 2)6O-)的胶凝能力比具有较短柔性桥(-O(CH 2)4 O-)的化合物1a更高。扫描电子显微镜(SEM)对来自不同有机溶剂的干凝胶的观察显示出图像,表明原纤维聚集体纠缠在三维网络结构中。
4′-Functionalized 2,2′:6′,2″-terpyridines as building blocks for supramolecular chemistry and nanoscience
作者:Ulrich S Schubert、Christian Eschbaumer、Oliver Hien、Philip R Andres
DOI:10.1016/s0040-4039(01)00796-1
日期:2001.7
Different mono- and bis-terpyridines were synthesized utilizing nucleophilic substitution of 4′-chloro-2,2′:6′,2″-terpyridine. In the case of the mono-functionalized ligands, different functional groups opposite to the metal binding site could be introduced; with the bis-functionalized ligands building blocks for metal-containing polymers with a tailored alkyl-chain length were accessible. As examples