The synthesis and complexation of two 24-crown-8 cyclic polyethers
The synthesis and complexation of two 24-crown-8 cyclic polyethers
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两种24冠8环聚醚的合成及络合
DOI：
10.1016/s0020-1693(00)80131-0
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发表时间：
1980
期刊：
影响因子：
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通讯作者：
J. N. Wingfield
中科院分区：
文献类型：
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作者：
J. N. Wingfield
对较大的大环冠醚环如二苯并-24-冠-8（III）和二苯并30-冠-10的研究表明，这些分子作为游离配体[1]和与碱金属和碱土金属络合时可以采用多种构象[1 B，2，3）。此外，金属：配体的不同化学计量的络合物可以在结晶状态下分离[2，41]，并且也可以在溶液中观察到[3，41]。最后，已经表明二苯并-24冠-8可能络合“水合阳离子”，其中金属和水两者与
Studies of larger macrocyclic crown ether rings such as dibenzo-24crown-8(III) and dibenzo30-crown-10 have shown that these molecules may adopt a variety of conformations both as free ligands [l] and when complexing alkali and alkaline earth metals [1 b, 2, 3). In addition, complexes of different stoicheiometries of metal: ligand may be isolated in the crystalline state [2, 41, and also observed in solution [3, 41. Finally, it has been shown possible that dibenzo-24crown-8 may complex a ‘hydrated cation’, where both metal and water interact with