| Abstract
| - Nanotubes of sandwich-type mixed (porphyrinato)(phthalocyaninato)europium(III) double-decker, H{Eu(TClPP)[Pc(α-OC4H9)8]} [TClPP = 5,10,15,20-tetrakis(4-chlorophenyl)poprhyrinate; Pc(α-OC4H9)8 = 1,4,8,11,15,18,22,25-octakis(1-butyloxy)phthalocyaninate] were fabricated by using nanoporous anodized aluminumoxide (AAO) membrane as the template. The tubular structure was investigated by field emission scanningelectron microscopy (FESEM), transmission electron microscopy (TEM), high-resolution transmission electronmicroscopy (HRTEM), and UV−visible spectroscopy. It was found that the outer diameter of the nanotubeswas matched with the pore diameter of AAO membrane very well. HRTEM micrographs reveal that thewalls of the nanotubes have orderly layered structure and the distance between the adjacent layers is 0.58nm, which agrees well with the size (thickness) of one double-decker molecule, indicating that the nanotubesare supramolecular structures formed from the double-decker molecules due to π−π interaction between themacrocycles. UV−vis spectroscopic results of the nanotubes also confirmed the formation of J-aggregates ofthe complex molecules, consistent with HRTEM investigation results.
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