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). Issue 3 (13th January 2016)

• Record Type: Journal Article
• Authors: Kamimoto, Natsuyo; Nakamura, Nariaki; Tsutsumi, Akina; Mandai, Hiroki; Mitsudo, Koichi; Wakamiya, Atsushi; Murata, Yasujiro; Hasegawa, Jun‐ya; Suga, Seiji
• Is Part Of: Asian journal of organic chemistry. Volume 5:Issue 3(2016)
• Page Start: 303
• Page End: 303
• Publication Date: 2016-01-13
• Subjects: alkynes -- diynes -- electrochemistry -- fluorescence -- solvatochromism; Chemistry, Organic -- Periodicals; Organic compounds -- Synthesis -- Periodicals; 547.005
• DOI: 10.1002/ajoc.201600012
• Languages: English
• ISSNs: 2193-5807

Abstract

Abstract : Bis(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 onpage 373 in Issue 3, 2016 (DOI:10.1002/ajoc.201500502 ).