217655-15-7Relevant articles and documents
Bathochromic or hypsochromic effects via the extension of conjugation: A study of stilbenoid squaraines
Meier, Herbert,Petermann, Ralf,Gerold, Juergen
, p. 977 - 978 (1999)
In contrast to normal conjugated oligomers, the stilbenoid squaraines 3a-d do not show a convergence of VIS/NIR absorption due to the extension of conjugation; the observed bathochromic effect in the beginning of the series is followed by a hypsochromic e