Allosteric Binding of Halide Anions by a New Dimeric Interpenetrated Coordination Cage
作者:Sabrina Freye、Jakob Hey、Anna Torras-Galán、Dietmar Stalke、Regine Herbst-Irmer、Michael John、Guido H. Clever
DOI:10.1002/anie.201107184
日期:2012.2.27
Packed in like sardines: Three BF4− ions are packed into the three cavities of an interpenetrated dimer of a coordinationcage (see scheme). While the inner BF4− ion is tightly bound inside the central position, the loosely bound outer anions can be replaced with halide anions by an allosteric binding mechanism and a concerted structural change. In particular, Cl− is bound with great affinity.
Stable and Metastable Self-Assembled Rings based on<i>trans</i>-chelated Pd<sup>II</sup>
作者:Fernanda A. Pereira、Thomas Fallows、Marina Frank、Anqi Chen、Guido H. Clever
DOI:10.1002/zaac.201300168
日期:2013.7
In contrast to the large number of self-assembledring and cage structures based on cis-chelated square-planar metal complexes as connecting nodes, the use of trans-chelated square-planar building blocks is vastly underrepresented in supramolecular coordination chemistry. We here report of a strategy for the formation of self-assembledring structures based on the trans-chelating ligand 1, 2-bis(2
Counterion Dynamics in an Interpenetrated Coordination Cage Capable of Dissolving AgCl
作者:Sabrina Freye、David M. Engelhard、Michael John、Guido H. Clever
DOI:10.1002/chem.201203086
日期:2013.2.4
solution, the eight BF4− counterions of a positively charged D4‐symmetric interpenetrated [Pd4ligand8]8+ double cage (1) are localized in distinct positions. At low temperatures, one BF4− ion is encapsulated inside the central pocket of the supramolecular structure, two BF4− ions are bound inside the equivalent outer pockets, and the remaining five BF4− ions are located outside the cage structure (expressed
Subtle backbone modifications control the interpenetration of dibenzosuberone-based coordination cages
作者:Thorben R. Schulte、Marcel Krick、Carmen I. Asche、Sabrina Freye、Guido H. Clever
DOI:10.1039/c4ra04679j
日期:——
The self-assembly of interpenetrated double-cages was examined with respect to various synthetic modifications of the dibenzosuberone backbone.
双重笼状结构的自组装被研究,涉及对二苯并亚醌骨架的各种合成修饰。
Relative anion binding affinity in a series of interpenetrated coordination cages
作者:Marina Frank、Johannes M. Dieterich、Sabrina Freye、Ricardo A. Mata、Guido H. Clever
DOI:10.1039/c3dt51709h
日期:——
series of interpenetrated double-cages [Pd4Ligand8] with ligands based on various organic backbones. For dibenzosuberone-based cages it was shown that anionbinding in the outer two pockets follows an allosteric mechanism. Herein we wish to report the anionbinding capabilities of three related phenothiazine cages. We present a systematic comparison of the relative halide (Cl− and Br−) binding affinities