Sumitomo Chemical Company, Limited

Jun Fujiwara

Yasunori Uetani

Hirotoshi Nakanishi

Ken Otaka

Hiromasa Mitsudera

A fullerene derivative having a partial structure represented by formula (1): wherein R represents a monovalent group, and r represents an integer of 0 to 4,in particular, a fullerene derivative, which has one to four structures represented by formula (1), can be applied to an organic photoelectric conversion element having a high open-circuit voltage and is therefore suitable for an organic thin-film solar cell or an organic photosensor, and thus it is extremely useful.

Fullerene derivatives

The present invention provides a malononitrile compound represented by the formula (I): wherein any one of X, X, Xand Xis CR, wherein Ris a group represented by the formula: the other three of X, X, Xand Xeach represent nitrogen or CR, provided that 1 to 3 of X, X, Xand Xrepresent nitrogen, and Z represents oxygen, sulfur or NR, which has pest-controlling activity.  

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Ashiya, Japan

Jun Fujiwara