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Org Biomol Chem

Title:		Nonregular structure-property relationships for inclusion parameters of tert-butylcalix[5]arene
Author(s):		Ziganshin MA; Yakimov AV; Safina GD; Solovieva SE; Antipin IS; Gorbatchuk VV;
Address:		"Institute of Chemistry, Kazan State University, Kremlevskaya 18, Kazan, 420008, Russia"
Journal Title:		Org Biomol Chem
Year:		2007
Volume:		20070404
Issue:		9
Page Number:		1472 - 1478
DOI:		10.1039/b701082f
ISSN/ISBN:		1477-0520 (Print) 1477-0520 (Linking)
Abstract:		"The effect of macrocycle size on the structure-property relationships was studied for inclusion compounds of tert-butylcalix[n]arenes (n=4,5) with volatile organic guests having various molecular size and group composition. Vapor-sorption isotherms, guest-inclusion stoichiometry and Gibbs energy, thermostability parameters and decomposition enthalpies were determined for host-guest compounds (clathrates) obtained using saturation of solid calixarene powder with guest vapor. The increase of the host macrocycle in the studied calixarene pair changes the observed structure-property relationship from the guest-binding selectivity mostly seen in inclusion Gibbs energy to the high sensitivity for guest structure in inclusion stoichiometry. The host with the larger macrocycle has more clathrates with stepwise formation and decomposition. Specific types of guest binding with solid hosts are discussed"
Keywords:
Notes:		"PubMed-not-MEDLINEZiganshin, Marat A Yakimov, Alexey V Safina, Goulnaz D Solovieva, Svetlana E Antipin, Igor S Gorbatchuk, Valery V eng England 2007/04/28 Org Biomol Chem. 2007 May 7; 5(9):1472-8. doi: 10.1039/b701082f. Epub 2007 Apr 4"