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Synthesis and photophysical properties of syn- and anti-[2.n](3,9)carbazolophanes

✍ Scribed by Yosuke Nakamura; Masayoshi Kaneko; Noriyuki Yamanaka; Keita Tani; Jun Nishimura

Publisher: Elsevier Science
Year: 1999
Tongue: French
Weight: 348 KB
Volume: 40
Category: Article
ISSN: 0040-4039
DOI: 10.1016/s0040-4039(99)00846-1

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✦ Synopsis

Both syn-and anri-2.ncarbazolophanes (n = 4, 5) were obtained by the intramolecular [2 + 21 photocycloaddition of bis(3-vinyl-N-carbazolyl)alkanes. In the case of R = 4, the syn-isomer afforded sandwich excimer fluorescence, whereas the antiisomer Rave monomer fluorescence.

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