The red-shift of absorption peaks of electronic spectra for C76Si2 will take place compared with that of C78 (C2v), mainly resulted from the narrower LUMO-HOMO energy gap.

• C76Si2(29, 30)电子光谱吸收峰与C78相比发生红移, 主要是由于其对称性降低和LUMO- HOMO能隙变小。