Fig. 1: Materials design and synthesis of giant molecule acceptors.
From: Precise synthesis and photovoltaic properties of giant molecule acceptors

a The simplified diagram of the GMAs with three SMA subunits. b The synthetic routes of YDT, DY, TY, QY and PY-IT. (The blue, orange and cyan color-filled parts represent the independent subunit and the yellow and green color-filled parts represent the π-spacer linking units. The red circles represent the reaction sites. The Roman numerals i-vi represent the synthetic steps with the reaction conditions described in the bottom of the figure.).