Optical Properties of 1,3-Bisdicyanovinylindane, an Electro-Acceptor, Attached Bisthienylethene Molecule.

An electron acceptor, 1,3-bisdicyanovinylindane, was attached to the skeleton of bisthienylethene. Photochromic behavior was investigated in THF. Under exposure of UVNisible light cycles, the solution color can be toggled between colorless and yellow.