Synthesis, photophysical, electrochemical and single-crystal x-ray diffraction study of (<i>Z</i>)-2-phenyl-3-(5-(4-(thiophen-2-yl)benzo[c][1,2,5]thiadiazol-7-yl)thiophen-2-yl)acrylonitrile

The optical characteristics, redox properties, thermogravimetric stability and single-crystal X-ray diffraction study of (<i>Z</i>)-2-phenyl-3-(5-(4-(thiophen-2-yl)benzo[c][1,2,5]thiadiazol-7-yl)thiophen-2-yl)acrylonitrile are examined using ultraviolet–visible spectrophotometry, cyclic voltammetry, thermal gravimetric analysis–diffraction scanning calorimetry analysis, single-crystal X-ray diffraction and density functional theory calculations. Evidently, the crystal structure of compound <b>6</b> is sustained by a number of weak nonconventional intermolecular forces of attraction such as C-H … N, C-H … π donor–acceptor interactions.