347377-48-4Relevant academic research and scientific papers
New molecular architectures by aggregation of tailored zinc(ii) Schiff-base complexes
Oliveri, Ivan Pietro,Failla, Salvatore,Malandrino, Graziella,Bella, Santo Di
experimental part, p. 2826 - 2831 (2012/01/14)
This contribution reports the synthesis, characterization, 1H NMR, optical absorption and fluorescence properties of a bis(salicylaldiminato) Zinc(ii) Schiff base complex, 1, having dipodal, alkyl ammonium bromide derivatized side chains in the salicylidene rings. The comparison of 1H NMR and optical spectroscopic properties of 1 with those of the closely related amphiphilic alkyl derivative allowed getting insights into the nature of species in solutions. Present data suggest the existence of Zn...Br interactions, thus avoiding intermolecular Zn...O interactions, as usually occur in the absence of other coordinating species. SEM images of samples obtained by drop-casting from dichloromethane solutions of 1 reveal the existence of branched nanostructures, consistent with intermolecular Zn...Br interactions. The present approach thus suggests a new method to unique supramolecular architectures for coordination metal complexes.
