Crystal structure of benzyl 2-naphthyl ether, a sensitiser for thermal paper.

The title compound [systematic name: 2-(benz-yloxy)naphthalene], CHO, which is used as a sensitiser for thermal paper, has a twisted conformation with a dihedral angle of 48.71 (12)° between the phenyl ring and the naphthyl ring system. In the crystal, one mol-ecule inter-acts with six neighbouring mol-ecules inter-molecular C-H⋯π inter-actions to form a herringbone mol-ecular arrangement.

Near-infrared absorbing squarylium dyes with linearly extended π-conjugated structure for dye-sensitized solar cell applications.

A novel class of near-infrared absorbing squarylium sensitizers with linearly extended π-conjugated structures, which were obtained by Pd-catalyzed cross-coupling reactions with stannylcyclobutenediones, has been developed for dye-sensitized solar cells. The cells based on these dyes exhibited a significant spectral response in the near-infrared region over 750 nm in addition to the visible region.