Triphenylene amphiphilic

Figure 2.5 Immobilization of one-dimensional columnar charge-transfer (CT) assemblies of an amphiphilic triphenylene donor and various acceptors confined within mesoporous silica nanochannels.

TNF-CT complexes of 2,3,6,7,10,11-hexakispentyloxytriphenylene or related amphiphilic derivatives are also able to form Langmuir-Blodgett (LB) films [57]. Polarized UV/VIS and infrared spectra of those of TNF complexes of hexakisalkyloxytri-phenylenes discussed here, for example, indicate a preferred orientation of the columnar axes parallel to the surface and to the dipping direction [57 a]. An amphiphilic triphenylene derivative with a pair of co-OH chains and four pentyloxy groups, forming a lamellar mesophase in the neat state, a nematic discotic main chain polymer derived from the aforementioned monomer both exhibit induced columnar hexagonal (Col j,) mesophases with TNF in the bulk state [57b]. The X-ray diffraction pattern of the... 

Inorganic mesoporous channels also provide a unique environment for supramolecular assembly. Aida and co-workers reported the first example of immobilization of one-dimensional columnar charge-transfer (CT) assemblies in mesoporous silica films through a sol-gel reaction with CT complexes of amphiphilic triphenylene donors and various acceptors (Fig. 25). ... 

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