TY - JOUR
T1 - Bigger, better, faster
T2 - Molecular shuttles with sterically non-hindering biisoquinoline chelates
AU - Durola, Fabien
AU - Lux, Jacques
AU - Sauvage, Jean Pierre
AU - Wenger, Oliver S.
N1 - Funding Information:
We thank all the skilful and motivated researchers who contributed to this work, namely David Hanss, Alexander I. Prikhod’ko and Pirmin Roesel. Financial support from the Région Alsace (FD and JL), the European Commission and the Swiss National Science Foundation (OSW) is acknowledged. We thank Kari Rissanen and his group for X-ray crystallographic work.
PY - 2011/1
Y1 - 2011/1
N2 - In the past, a variety of mechanically interlocked systems such as catenanes and rotaxanes were constructed on the basis of Cu(I) coordination chemistry and endocyclic 1,10-phenanthroline ligands. This review reports on the coordination chemistry of a new family of endocyclic bidentate chelators that are sterically non-hindering, namely 8,8′-diaryl-substituted 3,3′-biisoquinolines. These ligands allow the construction of new multi-component assemblies that are inaccessible with the previously investigated 1,10-phenanthrolines. On the one hand, the sterically non-hindering nature of the new endocyclic chelators makes three-component entanglements around octahedral metal centres such as iron(II), cobalt(II) and ruthenium(II) readily possible. On the other hand, it permits the construction of copper-based molecular shuttles that exhibit shuttling kinetics that excels over those of previously investigated analogous systems with 1,10-phenanthrolines. Thus, within this class of molecular machines, a bigger chelator leads to faster molecular movement, i.e. to a better performance of the molecular machine.
AB - In the past, a variety of mechanically interlocked systems such as catenanes and rotaxanes were constructed on the basis of Cu(I) coordination chemistry and endocyclic 1,10-phenanthroline ligands. This review reports on the coordination chemistry of a new family of endocyclic bidentate chelators that are sterically non-hindering, namely 8,8′-diaryl-substituted 3,3′-biisoquinolines. These ligands allow the construction of new multi-component assemblies that are inaccessible with the previously investigated 1,10-phenanthrolines. On the one hand, the sterically non-hindering nature of the new endocyclic chelators makes three-component entanglements around octahedral metal centres such as iron(II), cobalt(II) and ruthenium(II) readily possible. On the other hand, it permits the construction of copper-based molecular shuttles that exhibit shuttling kinetics that excels over those of previously investigated analogous systems with 1,10-phenanthrolines. Thus, within this class of molecular machines, a bigger chelator leads to faster molecular movement, i.e. to a better performance of the molecular machine.
KW - biisoquinoline
KW - chelates
KW - copper
KW - molecular shuttles
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U2 - 10.1080/10610278.2010.510189
DO - 10.1080/10610278.2010.510189
M3 - Article
AN - SCOPUS:79952233830
SN - 1061-0278
VL - 23
SP - 42
EP - 52
JO - Supramolecular Chemistry
JF - Supramolecular Chemistry
IS - 1-2
ER -