Influence of the solvent nature on the structure of two-dimensional nanoaggregates in langmuir layers of copper tetra-tert-butyltetrabenzotriazaporphyrin

Abstract

The structure of nanostructured Langmuir layers of copper tetra-tert-butyltetrabenzotriazaporphyrin (CuThptBu4) prepared using the solution in methylene chloride at different degrees of initial surface coverage (cedge from 10 to 51%) is determined. The significant change of the monolayer structure due to changes in initial conditions is shown. A comparative analysis of the quantitative structure parameters and properties of floating layers of CuThptBu4 prepared using solutions in benzene and methylene chloride is performed. It is shown that in the case of the aromatic solvent (benzene, cedge = 10%) and the azaporphyrin with the disturbed π-system (CuThptBu4) intermolecular interactions AP- water became prevailing, what leads to formation of dense and rigid monolayers with the most open (face-on) structure of nanoaggregates. © ISUCT Publishing.