Highly Ordered Assembly of π-Stacked Distyrylbenzenes by Oligoadenines

A well-defined nanofibrous structure with lengths of several hundred nanometers and cross-sectional width of a single size (similar to 6 +/- 0.5 nm) was self-assembled by oligoadenines, dA(20), and thymine-appended distyrylbenzene through binary complementary A-T hydrogen bond formation and the strong pi-pi stacking interactions. This demonstrated a useful supramolecular self-assembling approach to control the packing order of pi-conjugated molecules and provided a practical means to enhance the optical properties of a material.