The present invention concerns ortho-Terphenyls of general formula (I); wherein R1, R2, R3 and R4 are independently selected from the group consisting of H; CN; NO2; and saturated, unsaturated or aromatic C1-C40 hydrocarbon residues, which can be substituted 1 - to 5- fold with F, CI, OH, NH2, CN and/or NO2, and wherein one or more -CH2-groups can be replaced by -O-, -NH-, -S-, -C(=O)O-, -OC(=O)- and/or -C(=O)-; and X and Y are the same or different, and selected from the group consisting of F, CI, Br, I, and OTf (trifluoromethanesulfonate); and their use for the preparation of graphene nanoribbons as well as a process for the preparation of graphene nanoribbons from said ortho-Terphenyls.
                            本发明涉及一般式(I)的邻二
联苯;其中R1、R2、R3和R4分别选自H;CN;
NO2;以及饱和、不饱和或芳香族C1-C40烃基,该烃基可用F、Cl、OH、NH2、CN和/或   取代1至5次,并且一个或多个-
CH2基团可被-O-、-NH-、-S-、-C(=O)O-、-OC(=O)-和/或-C(=O)-取代;X和Y相同或不同,选自F、Cl、Br、I和OTf(
三氟甲磺酸盐);以及它们用于制备
石墨烯纳米带,以及从所述邻二
联苯制备
石墨烯纳米带的方法。