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The synthesis, photophysical and electrochemical properties, and photovoltaic performances in dye‐sensitized solar cells (DSSCs) of five new metal‐free organic sensitizers with a carbazole moiety as the electron donor are reported. The compounds contain a thiophene at various positions and a cyanoacrylic acid unit as the electron acceptor. The position of the thiophene moiety affected both the photophysical and electrochemical properties, leading to conversion efficiencies of 1.44 to 4.57 % under AM 1.5 solar conditions (100 mW cm–2). The best performance and longest electron lifetime were found when a thiophene was located on both donor and acceptor sites. The DSSC showed a short‐circuit current (Jsc) of 8.59 mA/cm2, an open‐circuit photovoltage (Voc) of 0.75 V, and a fill factor (FF) of 0.71. The position of the π‐conjugated bridges not only affects the absorption spectra and the energy levels of the sensitizers, but also adjusts the electron lifetime.

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Coupling: Toward an Efficient, Green Synthesis of Biaryl Compounds. -An efficient, air-stable protocol for the palladium-catalyzed Suzuki-Miyaura cross coupling reaction is developed. The use of imidazole-imine supporting ligands offers substantial catalyst improvements with regard to air-stability and catalytic efficiency. -(RATNIYOM, J.; CHAIPRASERT, T.; PRAMJIT, S.; YOTPHAN, S.; SANGTRIRUTNUGUL, P.; SRISURATSIRI, P.; KONGSAEREE, P.; KIATISEVI*, S.; J. Organomet. Chem. 752 (2014) 161-170, http://dx.