Air-Stable, Room-Temperature Emissive Disilenes with π-Extended Aromatic Groups
摘要:
pi-Conjugated disilenes with 2-naphthyl or 2-fluorenyl groups on the silicon atoms have been synthesized as air-stable emissive red solids using the bulky 1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl (Eind) groups. The strong a pi-pi* absorptions and distinct emission at room temperature, both in solution and in the solid state, have been observed due to the substantial contribution of the 3p(pi)*(Si-Si)-2p(pi)*(carbon pi-electron system) conjugation.
Air-Stable, Room-Temperature Emissive Disilenes with π-Extended Aromatic Groups
摘要:
pi-Conjugated disilenes with 2-naphthyl or 2-fluorenyl groups on the silicon atoms have been synthesized as air-stable emissive red solids using the bulky 1,1,3,3,5,5,7,7-octaethyl-s-hydrindacen-4-yl (Eind) groups. The strong a pi-pi* absorptions and distinct emission at room temperature, both in solution and in the solid state, have been observed due to the substantial contribution of the 3p(pi)*(Si-Si)-2p(pi)*(carbon pi-electron system) conjugation.
π-conjugated phosphasilenes stabilized by fused-ring bulky “Rind” groups
作者:Tsukasa Matsuo、Baolin Li、Kohei Tamao
DOI:10.1016/j.crci.2010.07.005
日期:2010.8
π-conjugated phosphasilenes stabilized by bulky protecting groups based on a fused-ring octa-R-substituted s-hydrindacene skeleton (Rindgroups) is reviewed. The phosphasilenes with a variety of aryl substituents at the silicon atom are covered in detail. The X-ray crystallography analysis showed the highlycoplanar π-framework reinforced by the perpendicularly-fixed Rindgroups. Strong π–π* absorptions have been