以配体Ia、Ib和Ni(dbbpy)Cl2(dbbpy=4,4′-二-叔丁基-2,2′-联吡啶)反应,合成了两种新型冠醚环化二硫纶配体的Ni(Ⅱ)配合物1和2.经1H NMR、IR、MS和元素分析表征了二者的结构,并解析了其晶体结构,初步测定了其光电响应性质.结果表明,配合物2对Li+有较明显的响应,ΔE1/21=35 mV(30倍Li+),对碱金属离子Na+和K+均无明显响应.同时配合物1和2在室温下均有明显的溶剂变色现象.
Two novel nickel (Ⅱ) complexes(1 and 2) containing crown ether annelated dithiolate ligand were synthesized by reactions of Ia,Ib with Ni(dbbpy)Cl2(dbbpy=4,4′-di-tert-butyl-2,2′-bipyridine).The complexes′ structure were characterized by 1H NMR, IR, MS and elemental analysis.X-ray crystallography and photoelectric properties of these two compounds were also investigated.Complex 2 exhibited a significant response for Li+ ions with a large positive shift of ca.35 mV.Moreover, both complexes (1 and 2) displayed solvatochromic behaviors.
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