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A Ca 2+ ‐, Mg 2+ ‐, and Zn 2+ ‐Based Dendritic Contractile Nanodevice with Two pH‐Dependent Motional Functions
Author(s) -
Stadler AdrianMihail,
Karmazin Lydia,
Bailly Corinne
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201506474
Subject(s) - transmetalation , chemistry , motional narrowing , ion , metal , metal ions in aqueous solution , physics , spectral line , organic chemistry , catalysis , astronomy
A contractile dendritic motional device is reported where metal ions with biological importance—Ca 2+ (the main regulatory and signaling species of the natural muscles), Mg 2+ , and Zn 2+ —initiate two kinds of motional functions. The first motional function is the metal‐ion‐induced contraction of a linear strand into a Z‐shaped dinuclear complex, and the second one is the change of the height of Z‐shaped complexes via transmetalation. By means of the pH‐dependent counterligand tren, the two motional features of the machine can depend on alternate additions of acid and base. An optical response is associated with the conversion of the linear form (which is yellow) into the metalated Z‐shaped one (which is red).