Twisting the silicon backbone conformation in oxygen containing oligosilanes towards dihedral angles of 120â130° either by intramolecular hydrogen bonding or incorporation into a covalently bonded ring system effectively extends the delocalization of electrons in these Ïân mixed conjugated systems.
通过分子内氢键或加入共价键环系统,将含氧低聚
硅烷中的
硅骨架构象扭转成 120-130° 的二面角,从而有效地扩展了这些Ïân 混合共轭体系中的电子脱位。