A [12]Cyclo-p-phenylene 9 composed
of dinaphthofuran units and biphenyl units was synthesized through
reductive elimination of the corresponding trinuclear complex by applying
Yamago’s method. The X-ray crystallographic analyses of 9 revealed that it adopts a zigzag conformation in the solid
state. The UV–vis and fluorescence measurements of compound 9 indicated that it also preferentially took a zigzag conformation
in the solution state.