the comparisons of NICS values and calculated HOMO-LUMO gaps of cyclooctatetraene at various bent angles as well as the optimized structures of cyclic tetrathiophenes 1-3, similar enhancement of the paratropicity and narrowing of the HOMO-LUMO gap with decreasing bent angle of the COT rings were shown in both cyclooctatetraene and cyclic tetrathiophenes 1-3. Such predictions were experimentally proved