(英)含吡啶基的TTF铜盐的合成,结构和性质研究

报道了一个基于TTF-吡啶的铜盐配合物1的合成、单晶结构和电化学性质。化合物1的化学结构式为Cu(dipic)·EDO-TTF-4-pydipic=吡啶-2,6-二甲酸;EDO-TTF-4-py=ethylene dioxotetrathiafulvalenepyridine(L1)]。在化合物1中,L1配体通过吡啶N原子直接与Cu(dipic)中铜原子配位形成配合物。晶体结构中配体L1和Cu(dipic)分列成柱。研究了化合物1的光谱和电化学性质,结果表明,化合物1和配体L1的氧化电位有很大的区别,说明在化合物1中,配体L1和金属铜离子有较强的相互作用;此外,在紫外可见光谱中,化合物1的ICT的吸收峰相对于L1发生红移且强度增强,该结果得到了理论计算的证实。

Synthesis and Physical Properties of a New Cu(II) Complex Based on Pyridyl-Substituted TTF Ligand

The synthesis, crystal structures and electro- chemical properties of a transition metal coordination complex, Cu(dipic)×EDO-TTF-4-py 1, are reported, where dipic = pyridine-2,6-dicarboxylate and EDO-TTF-4-py L1 EDO-TTF = ethylene edioxotetrathiafulvalene; py = pyridine]. The L1 in 1 is coordinated to the Cu(II) atom through the nitrogen atom of the pyridine group. its physicochemical properties were characterized. Interestingly, the crystals of 1 formed segregated columns of TTF and Cu(dipic) parts. And electrochemistry properties of 1 have evidenced largely interaction between the L1 and the Cu(II) ion. And more, the presence of ICT was evidenced by UV/Vis spectroscopy measurement and also confirmed by theoretical calculations.