From simple rings to one-dimensional channels with calix[8]arenes, water clusters, and alkali metal ions

TETRAHEDRON

卷:63

Article

Bergougnant, Remi D.¹  Robin, Adeline Y.¹  Fromm, Katharina M.¹ 

[1] Univ Fribourg, Dept Chem, CH-1700 Fribourg, Switzerland

关键词: alkali metal ions;    water aggregates;    4-tert-butylcalix[8]arene;    channel structures;   

DOI  :  10.1016/j.tet.2007.07.048

来源: Elsevier

【 摘 要 】

The macrocycle 4-tert-butylcalix[8]arene (L) was reacted with alkali metal carbonates (Li2CO3, Na2CO3, K2CO3, Rb2CO3, and CS2CO3) at the interface of a biphasic THF/water system. Needle-like crystals with a general formula [A(x)(4-tert-butylcalix[8]arene-xH)(THF)(y)(H2O)(2)] (with A=Li, Na, K, Rb, Cs, x=1, 2, y=4, 5, 8, and z=6, 7) were thereby obtained. The solid state structures were investigated by X-ray diffraction of single crystals and by TGA measurements. They do not appear to be maintained in solution. (C) 2007 Elsevier Ltd. All rights reserved.

【 授权许可】

Free