期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 26, 期 17, 页码 3829-3833出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201905212
关键词
helicates; molecular switches; self-assembly; thermodynamics; titanium
The thioester moiety is introduced as a lithium binding unit for the hierarchical formation of titanium(IV) catecholate-based lithium-bridged helicates. In solution, the coordination compounds show a monomer-dimer equilibrium which -in comparison to the oxo esters- is significantly shifted towards the monomers. In addition, the influence of the thioester side chain on the dimerization behavior is investigated and an expansible/compressible molecular switch is synthesized. In the latter case expansion and compression are performed reversibly in methanol, whereas in DMSO spontaneous expansion occurs.
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