Crystalline inclusion compounds of lower rim propyl substituted calix[4]arenes featuring different number and positions of the modifying groups

Gruber, Tobias and Peukert, Max and Schindler, Diana and Seichter, Wilhelm and Weber, Edwin and Bombicz, Petra (2008) Crystalline inclusion compounds of lower rim propyl substituted calix[4]arenes featuring different number and positions of the modifying groups. Journal of Inclusion Phenomena and Macrocyclic Chemistry, 62 (3-4). pp. 311-324. ISSN 0923-0750

Full content URL: http://dx.doi.org/10.1007/s10847-008-9473-x

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Crystalline inclusion compounds of lower rim propyl substituted calix[4]arenes featuring different number and positions of the modifying groups

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Abstract

Three lower rim n-propyl substituted calix[4]arenes (1–3) with varied number and position of the modifying groups have been prepared. Inclusion compounds (five species) involving different kinds of guest solvents have been isolated. Their X-ray crystal structures were determined and comparatively discussed using isostructurality calculations. Two of the inclusion compounds obtained (1a and 1b) are polymorphs containing the same host and guest molecules in equal stoichiometric ratio but different Z′ values caused by a phase transition around 140K. The inclusion compounds 2a and 2b refer to the interesting case of a mixed solvent complex while 3a allows studying the effect of full lower rim n-propyl substitution.

Keywords:calixarene, cyclophane, isostructurality, X-ray diffraction, Molecular Conformation
Subjects:F Physical Sciences > F131 Crystallography
F Physical Sciences > F200 Materials Science
F Physical Sciences > F160 Organic Chemistry
F Physical Sciences > F130 Structural Chemistry
Divisions:College of Science > School of Pharmacy
ID Code:20034
Deposited On:15 Jan 2016 12:20

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