TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Compound: The semiconductor contains microparticles which consists of metal oxide(s).Preferred Use: The solar cell contains the claimed optoelectric transducer.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Compound: The semiconductor contains microparticles which consists of metal oxide(s).Preferred Use: The solar cell contains the claimed optoelectric transducer.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Groups: The esterified carboxyl groups are alpha,alpha,alpha-trifluoro alkyl oxycarbonyl group. Preferred Definitions:    L=cyano group, trifluoromethyl group, carboxyl group or esterified carboxy group such as alpha,alpha,alpha-trifluoro alkyl oxycarbonyl group;and    A=bivalent group originating in thiophene or furan.    EXAMPLE - Active methylene derivative (CH2(-C2H5OOOC)(-NaOOC)) (A) (in g) (0.462) and 2-methyl-gamma-pyran derivative (B) (0.414) were dissolved in ethanol. To the obtained solution, piperidine catalyst was added, stirred at 100degreesC for 5 hours and a compound of formula (C) was obtained. To the compound (C), diphenyl formamidine, 1-ethyl-2-methyl benzo thiazolium iodide were added, heated and 2-anilino vinyl-3-ethyl-benzothiazolium iodide (D) was obtained. Acetic anhydride (0.13) was added to the obtained compound (D) (1.021) to obtain compound (E). To the obtained compound (E), compound (C) (0.488) and triethylamine were added and argon gas was blown. The reaction mixture was cooled at room temperature and filtered. The solvent in the filtrate was evaporated and solid was obtained. The obtained solid was purified and a compound of formula (2) (0.597) with yield of 72 % was obtained. The compound (2) was identified by elemental analysis. SSP-M (titanium oxide) was cleaned with pure water and introduced into a vessel. TORITONN X-100 (dispersant) (1 wt.%), pure water and glass bead of diameter 0.5 mm were added. The glass bead was removed and titanium-oxide dispersion liquid containing average particle diameter of 0.3 microns was obtained. The obtained liquid was applied on electrically-conductive film, dried and baked for 30 minutes at 450 degrees C and titanium oxide thin film electrode was obtained. The dye-sensitized solar cell produced from organic dye consisted of compound (2) as sensitizing dye, obtained nanoporous titanium oxide film as electrode and iodine ion redox as electrolyte. The formed solar cell had photoelectric conversion efficiency of 7.6 %.