Chosen BODIPY structure was designed for this investigation, such that there were no specific interaction spots, no pronounced charge-transfer or other excited state effects available. In addition, BODIPY-C18 aromatic system stacking is hindered by aliphatic core substitution. It was assumed that BOD-IPY with geometrical anisotropy (having one geometrical axis longer than the others) will demonstrate aggregation-driven changes in electronic absorption and emission properties during concentration in solution.