4-octadecyloxyphenyl-benzaldehyde was synthesized utilizing Williamson ether synthesis process from octadecyl bromide and 4-hydroxybenzaldehyde (0.1 eq. excess) in DMF with potassium carbonate as a base. Resulting yellowish liquid was diluted with DCM and washed with water to remove any aldehyde residue, and then multiple times triturated with DCM, frozen to -40 • C and evacuated during warm-up to the room temperature to remove any DMF traces. Procedure yields white crystalline powder quantitatively. DPM-C18 ligand was synthesized utilizing the following technique (Figure ): two equivalents of pyrrole react with aldehyde equivalent in an inert atmosphere in ethanol with HBr aqueous solution to yield dipyrromethene hydrobromide DPM-C18 directly, overnight, avoiding the quinone-driven oxidation stage. DPM-C18 is then isolated on neutral aluminium oxide column with hexane-DCM column with addition of ethanol (10:1:0 gradually to 100:10: