Abstract X-and H-shape two-dimensional (2D) conjugated oligomers (X-and H-mers) and relevant model compounds have been synthesized through the introduction of different conjugated segments at the 9, 10 and 2, 6-positions of anthracene, and their properties were studied in detail. Comparing with the model compounds, the X-and H-mers are featured with broader absorption spectra and narrower energy bandgaps. Computational studies on the ...