Issue 20, 2012
From the journal:

CrystEngComm

The quest for a molecular capsule assembled viahalogen bonds†‡

Christer B. Aakeröy,*a   Arbin Rajbanshi,a   Pierangelo Metrangolo,bc   Giuseppe Resnati,bc   Melchiorre F. Parisi,d   John Despera  and  Tullio Pilatib  

* Corresponding authors

a Department of Chemistry, Kansas State University, 211 CBC Building, Manhattan, KS 66506, USA
E-mail: aakeroy@ksu.edu
Fax: +1 785 5326666

b NFMLab–Department of Chemistry, Materials and Chemical Engineering “Giulio Natta”, Politecnico di Milano, via Mancinelli 7, I-20131 Milan, Italy

c Center for Nano Science and Technology (CNST) of IIT@POLIMI, via Pascoli 70/3, I-20133 Milan, Italy

d Dipartimento di Scienze Chimiche, Università di Catania, Viale A. Doria 6, Catania, Italy

Abstract

A halogen-bonded capsule is obtained via directed assembly of a rigid tetra(3-pyridyl) cavitand and a flexible tetra(4-iodotetrafluorophenyl)calix[4]arene. The pyridyl nitrogen atoms from one cavitand molecule interact with the iodine atoms of a single calixarene molecule through short and directional I⋯N halogen bonds. The flexibility of the ethylenedioxy moieties on the calixarene platform results in positional flexibility of the iodotetrafluorobenzene sites which, coupled with a supramolecular chelating effect, allow for an effective partner-induced geometric fitting between four nitrogen atoms on the cavitand and four iodine atoms on the calixarene.

Graphical abstract: The quest for a molecular capsule assembled via halogen bonds

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Article information

DOI
https://doi.org/10.1039/C2CE26173A
Article type
Communication
Submitted
16 Jul 2012
Accepted
23 Jul 2012
First published
24 Jul 2012

CrystEngComm, 2012,14, 6366-6368

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The quest for a molecular capsule assembled via halogen bonds

C. B. Aakeröy, A. Rajbanshi, P. Metrangolo, G. Resnati, M. F. Parisi, J. Desper and T. Pilati, CrystEngComm, 2012, 14, 6366 DOI: 10.1039/C2CE26173A

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