Complex formation of crown ethers with the cucurbit[6]uril-spermidine and cucurbit[6]uril-spermine complex in aqueous solution
Complex formation of crown ethers with the cucurbit[6]uril-spermidine and cucurbit[6]uril-spermine complex in aqueous solution
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DOI：
10.1007/s10847-005-1253-2
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发表时间：
2005-10-01
影响因子：
2.3
通讯作者：
Schollmeyer, E
中科院分区：
文献类型：
--
作者：
Buschmann, HJ;Mutihac, L;Schollmeyer, E
烷基胺能够与冠醚、环糊精或瓜环形成络合物。亚精胺和精胺等多胺也是如此。然而，这种多胺与冠醚和瓜环同时形成的研究还没有被研究过。用pH法和量热法研究了亚精胺、精胺等多胺与不同配体如冠醚、六氢呋喃在水溶液中形成混合络合物的能力。测定了冠醚与亚精胺、精胺及其瓜环络合物反应的热力学数据。多胺上的瓜环对这些胺与冠醚的反应没有重要影响。多胺、葫芦分子[6]脲和冠醚之间的反应是由于特定相互作用而自组织的简单例子。
Alkyl amines are able to form complexes with either crown ethers or cyclodextrins or cucurbit[6]uril. The same is known for polyamines such as spermidine and spermine. However, the simultaneous formation of such polyamines with crown ethers and cucurbit[6]uril has not been studied. The 'ability of polyamines such as spermidine and spermine to form mixed complexes with different ligands, e.g. crown ethers and eucurbit[6]uril has been studied in aqueous solution using pH-metric and calorimetric titrations. The thermodynamic data of reaction between crown ethers with spermidine, spermine and their cucurbit[6]uril complexes have been determined. The presence of cucurbit[6]uril on the polyamines has no important influence upon the reaction of these amines with crown ethers. The reactions between polyamines, cucurbit[6]uril and crown ethers are simple examples for the self organization of molecules due to specific interactions.