Butadiene dyes based on 3-(dicyanomethylidene)indan-1-one and 1,3-bis(dicyanomethylidene)indane: Synthesis, characterization and solvatochromic behaviour

1. Francos, J.
2. García-Garrido, S.E.
3. Borge, J.
4. Suárez, F.J.
5. Cadierno, V.