Gating the photochromism of an azobenzene by strong host–guest interactions in a divalent pseudo[2]rotaxane
作者:Mirko Lohse、Karol Nowosinski、Nora L. Traulsen、Andreas J. Achazi、Larissa K. S. von Krbek、Beate Paulus、Christoph A. Schalley、Stefan Hecht
DOI:10.1039/c5cc02811f
日期:——
Photoisomerisation of an E-configured azobenzene guest is controlled by a complementary host leading to formation of a divalent pseudo[2]rotaxane complex.
Thermodynamic Analysis of Allosteric and Chelate Cooperativity in Di- and Trivalent Ammonium/Crown-Ether Pseudorotaxanes
作者:Karol Nowosinski、Larissa K. S. von Krbek、Nora L. Traulsen、Christoph A. Schalley
DOI:10.1021/acs.orglett.5b02592
日期:2015.10.16
A detailed thermodynamic analysis of the axle-wheel binding in di- and trivalent secondary arnmonium/[24]crown-8 pseudorotaxanes is presented. Isothermal titration calorimetry (ITC) data and double mutant cycle analyses reveal an interesting interplay of positive as well as negative allosteric and positive chelate cooperativity thus providing profound insight into the effects governing multivalent binding in these pseudorotaxanes.