Solvent Induced Pseudopolymorphism in a Calixarene-Based Porous Host Framework

被引:39
|
作者
Tedesco, Consiglia [1 ,2 ]
Erra, Loredana [1 ]
Immediata, Ivano [1 ]
Gaeta, Carmine [1 ]
Brunelli, Michela
Merlini, Marco
Meneghini, Carlo [3 ,4 ]
Pattison, Philip [5 ]
Neri, Placido [1 ,2 ]
机构
[1] Univ Salerno, Dipartimento Chim, I-84084 Salerno, Italy
[2] Univ Salerno, Res Ctr NANOMat & NanoTEchnol, NANO MATES, I-84084 Salerno, Italy
[3] European Synchrotron Radiat Facil, CRG GILDA, CNR, TASC, F-38043 Grenoble, France
[4] Univ Roma 3, Dipartimento Fis E Amaldi, Rome, Italy
[5] Ecole Polytech Fed Lausanne, Crystallog Lab, CH-1015 Lausanne, Switzerland
关键词
HELICAL COORDINATION POLYMERS; ASYMMETRIC UNIT; CARBON-DIOXIDE; MOLECULAR RECOGNITION; MULTIPLE MOLECULES; CRYSTAL-STRUCTURES; HYDROGEN; SPACE; Z'-GREATER-THAN-1; SYNCHROTRON;
D O I
10.1021/cg900719f
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The self-assembly properties of the proximal p-tert-butylcalix[4]dihydroquinone compound have been studied to investigate the role played by crystallization conditions in driving the formation of a previously reported cubic porous framework. In chloroform and anhydrous ethyl acetate, the mutual inclusion of the tert-butyl groups is favored, leading to the cubic porous structure; otherwise, in the presence of a higher water amount, the OH groups provide H-bonds with bridging water molecules and a new triclinic crystal structure is obtained, in which the calixarene molecules include chloroform inside their cavities. By exposing a cubic/triclinic powder mixture to acetonitrile vapors, a new monoclinic chiral crystal structure is obtained by supramolecular assembly of calixarene, acetonitrile, and water molecules with the formation of single handed helices.
引用
收藏
页码:1527 / 1533
页数:7
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