2,5-Dibromo-3,4,6,7,8,9-hexaphenyl-1-silaspiropenta-2,4,6,8-tetraene의 합성 및 광학적 특성 조사

Synthesis and Optical Characterization of 2,5-Dibromo-3,4,6,7,8,9-hexaphenyl-1-silaspiropenta-2,4,6,8-tetraene

Organometallic polymers containing spirosilole unit have been interested, since spirosiloles has a unique optical and electronic properties. New functionalized spirosiloles (2,5-dibromo-3,4,6,7,8,9-hexaphenylspirosilole, DBHPSS) have been synthesized from the reduction of bis(1,1-phenylethynyl)-2,3,4,5-tetraphenylsilole with lithium naphthalenide for the possible applications in optics. DBHPSS has been characterized by $^1H$-NMR, fluorescence, and UV-vis absorption spectroscopy and elemental analysis. Bis(phenylethynyl)tetraphenylsilole displays an emission maxima at 490 nm with an excitation wavelength of 380 nm. However, DBHPSS displays an emission maxima at 550 nm with an excitation wavelength of 420 nm.