The chiral 2D structures formed at the interface are only observed when fatty acids are present as guest molecules and for quinacridone derivatives substituted with long alkyl chains, -C22H45.

• 这种手性的二维结构只有在喹吖啶酮衍生物取代有长烷基链(-C22H45)、并与作为客体分子的脂肪酸共吸附情况下才能形成。