Abstract
We have developed efficient synthetic routes to obtain a novel building block spiro[[8H]indeno[2,1-b]thiophene-8,9′-fluorene] (SITF), a monothiophene-containing spirobifluorene analogue, and constructed blue light-emitting materials, including 2′,7′-bis([1,1′-biphenyl]-4-yl)-spiro[indeno[2,1-b]thiophene-8,9′-fluorene] (BBP-SITF) and 2′,7′-bis(9,9′-spirobifluoren-2-yl)spiro[[8H]indeno[2,1-b]-thiophene-8,9′-fluorene] (BSBF-SITF). BSBF-SITF has shown to be a stable blue light-emitting material with high PL quantum efficiency (89%) and unique regioselective feature at the C2 of thiophene, which indicate that BSBF-SITF will be useful for constructing complicated optoelectronic systems.
Original language | English |
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Pages (from-to) | 6421-6424 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 47 |
Issue number | 36 |
DOIs | |
State | Published - 4 Sep 2006 |
Externally published | Yes |
Keywords
- BF·EtO
- Blue light-emitting materials
- Spiro compounds
- Spiroindenothiophenefluorene