454182-33-3Relevant academic research and scientific papers
A key role of orbital interaction in the main group element-containing π-electron systems
Yamaguchi, Shigehiro,Tamao, Kohei
, p. 2 - 7 (2007/10/03)
Various types of main group element-containing π-electron systems have been synthesized using silole, dibenzoborole, or bis-silicon-bridged stilbene as the key building units. In these π-electron systems, the orbital interaction between the main group element moiety and the π-conjugated framework, such as pπ-π* and σ*-π* conjugation, plays a crucial role in determining their characteristic electronic structures and makes them promising materials for applications in organic electronics and optoelectronics. Copyright
Dibenzoborole-containing φ-electron systems: Remarkable fluorescence change based on the "on/off" control of the pφ-φ* conjugation
Yamaguchi, Shigehiro,Shirasaka, Toshiaki,Akiyama, Seiji,Tamao, Kohei
, p. 8816 - 8817 (2007/10/03)
A series of dibenzoborole derivatives with various groups such as (N,N-diphenylamino)phenyl, thienyl, and bithienyl groups at the 3,7-positions have been synthesized and their photophysical properties studied. These new π-electron systems show significant solvatochromism in the fluorescence spectra. Thus, about 100-140 nm blue shifts in the emission maxima and 20-30-fold increments in the quantum yields are observed upon changing the solvent from THF to DMF. Similar fluorescence changes are observed upon the addition of n-Bu4NF to their THF solutions, demonstrating their sensing abilities toward a fluoride ion. These fluorescence changes result from the "on/off" control of the pπ-π* conjugation in their LUMO by the coordination of donor solvents or fluoride ion to the boron atom in the dibenzoborole skeleton. Copyright
