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中文摘要：
以均苯四甲酸二酰亚胺和1,5-萘二酚为基本结构单元,设计合成了一种不对称的37-冠-10（1）,解析了其晶体结构,并采用紫外-可见光谱和核磁共振等手段研究了冠醚1与一些阳离子的键合行为.晶体结构测试表明,冠醚1存在分子内的电荷转移相互作用,生成的较小空腔对较小的离子表现出较强的键合能力.光谱测试结果表明,冠醚1对锂离子的键合作用最强,对钠离子的键合作用次之,对其它碱金属/碱土金属离子没有键合作用.
英文摘要：
A new asymmetric 37-crown-10（1） with a pyromellitic diimide unit and a 1,5-naphthalene unit was synthesized,and its structure was resolved by X-ray diffraction.The binding behavior of 1 with some cations was investigated by UV-Vis and 1H NMR spectroscopies.The crystal structure obtained shows that there are two smaller cavities due to the strong interaction from the intramolecular charge transfer.The structural feature is beneficial to the complexation of 1 with smaller cations.The UV-Vis experiments show that its binding ability for lithium is the strongest,that for sodium is weak,and no binding for other akali metal or alkaline-earth metal ions.
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