Ligand-Structure Effect on the Formation of One-Dimensional Nanoscale Cu(II)-Schiff Base Complexes and Solvent-Mediated Shape Transformation
2012 (English)In: Crystal Growth & Design, ISSN 1528-7483, E-ISSN 1528-7505, Vol. 12, no 5, 2707-2713 p.Article in journal (Refereed) Published
We report here a Cu(II)-Schiff base complex that can assemble into one-dimensional (1D) nanoscale fibers, belts, and rods under different synthetic conditions. The ligand-structure effect is investigated by modification of the ligand structure. The formation of a ID nanostructure was studied, and the formation of dimers was revealed as a key factor for 1D assembly. In dimethylformamide (DMF) medium, this complex represents one of the rare examples of low-molecular-weight "super-metallogelators" with a critical gelation concentration of 0.3 wt % for DMF. The ligand exhibits good selectivity toward different metal ions in terms of gel formation and only the Cu(II) complex forms gels. It is interesting that this metallogel is a kind of dynamic nanostructure, which can be transformed to rods with different aspect ratios via a solvent-mediated process under stimulation of ultrasound.
Place, publisher, year, edition, pages
American Chemical Society , 2012. Vol. 12, no 5, 2707-2713 p.
National CategoryEngineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-77730DOI: 10.1021/cg300372vISI: 000303366000072OAI: oai:DiVA.org:liu-77730DiVA: diva2:529449
Funding Agencies|Natural Scientific Foundation of Fujian Province of China|A0710001|Education Department of the Fujian Province of China|JB10010|Swedish Foundation for Strategic Research (SSF)|SSF [A3 05:204]|Swedish government strategic faculty||2012-05-302012-05-282015-05-29