Inside Cover: Facile Synthesis of 1,4-Bis(diaryl)-1,3-butadiynes Bearing Two Amino Moieties by Electrochemical Reaction-Site Switching, and Their Solvatochromic Fluorescence (Asian J. Org. Chem. 3/2016)
2016; Wiley; Volume: 5; Issue: 3 Linguagem: Inglês
10.1002/ajoc.201600012
ISSN2193-5815
AutoresNatsuyo Kamimoto, Nariaki Nakamura, Akina Tsutsumi, Hiroki Mandai, Koichi Mitsudo, Atsushi Wakamiya, Yasujiro Murata, Jun‐ya Hasegawa, Seiji Suga,
Tópico(s)Radical Photochemical Reactions
ResumoBis(diaryl)-1,3-butadiynes, bearing two diamino groups and no strong acceptor unit, exhibited strong solvatochromic fluorescence. The conjugation between the two amino groups and the bis(diaryl)-1,3-butadiyne skeleton plays a key role in the emission of solvatochromic fluorescence, and the 1,3-diyne moiety is needed for fluorescence with high quantum yields. The Stokes shift became larger with increasing numbers of alkynes. A colorful glockenspiel represents the Stokes shifts of the molecules in different solvents, and the stick-like molecules represent the mallets for the glockenspiel. More information can be found in the Full Paper by Mitsudo, Suga, and co-workers on page 373 in Issue 3, 2016 (DOI: 10.1002/ajoc.201500502).
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