A self-assembled monolayer of a mixture of radical 2,3,7,8,12,13,17,18-octaethylporphyrin (OEP)Tb-III double-decker (Tb-III(OEP)(2)) single-molecule magnets and alkoxylated dehydrobenzo[12]annulene (DBA) at the 1-phenyloctane/highly oriented pyrolytic graphite interface was investigated using scanning tunneling microscopy. The observations revealed that single Tb-III(OEP)(2) molecules were incorporated in the 2D pores of the honeycomb structure formed by a DBA derivative containing octyloxy chains. The number of Tb-III(OEP)(2) molecules coadsorbed in the porous DBA networks increased with increasing concentration of the Tb-III(OEP)(2) radical solution.