Highly fluorescent solid-state asymmetric spirosilabifluorene derivatives

SH Lee, BB Jang, ZH Kafafi

Index: Lee, Sang Ho; Jang, Bo-Bin; Kafafi, Zakya H. Journal of the American Chemical Society, 2005 , vol. 127, # 25 p. 9071 - 9078

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Citation Number: 149

Abstract

A series of four asymmetrically aryl-substituted 9, 9'-spiro-9-silabifluorene (SSF) derivatives, 2, 2'-di-tert-butyl-7, 7'-diphenyl-9, 9'-spiro-9-silabifluorene (PhSSF), 2, 2'-di-tert-butyl-7, 7'- dipyridin-2-yl-9, 9'-spiro-9-silabifluorene (PySSF), 2, 2'-di-tert-butyl-7, 7'-dibiphenyl-4-yl-9, 9'- spiro-9-silabifluorene (BPhSSF), and 2, 2'-di-tert-butyl-7, 7'-bis (2', 2''-bipyridin-6-yl)-9, 9'- spiro-9-silabifluorene (BPySSF) are prepared through the cyclization of the corresponding ...