Ube Industries, Inc.

Takafumi Iwasa

Yoshihisa Kakuta

Kazuaki Kakita

Shigeyoshi Nishino

Hidetaka Shima

Tadashi Murakami

Kenji Fukunaga

Masashi Shirai

Toshikazu Machida

Takashi Honma

Yasuhiro Tanaka

Harunori Fujita

Osamu Fujimura

Toshio Furuya

Natsuko Kashihara

Shusaku Wada

A novel binuclear metal complex containing a biimidazole as a bridging ligand. The binuclear metal complex can be used as a material for an organic electroluminescence element.

Binuclear metal complex, and organic electroluminescence element comprising same

The present invention relates to a binuclear ruthenium complex dye represented by the following general formula (1-1): wherein Rrepresents a linear or branched alkyl group having 2 to 18 carbon atoms; X represents a counter ion; and n represents a number of the counter ions needed to neutralize a charge of the complex; and in which proton(s) (H) of one or more carboxyl groups (&#x2014;COOH) may dissociate.

Binuclear ruthenium complex dye, ruthenium-osmium complex dye, photoelectric conversion element using any one of the complex dyes, and photochemical cell

The present invention relates to a binuclear ruthenium complex dye having a higher absorption coefficient and capable of absorbing light of longer wavelength for realizing a photoelectric conversion element and a photochemical cell which may convert solar light into electricity over a wide wavelength range and exhibit high photoelectric conversion efficiency; and a binuclear ruthenium complex dye for realizing a photoelectric conversion element and a photochemical cell which may have high durability.

Photoelectric conversion element comprising binuclear ruthenium complex dye having a substituted bipyridyl group, and photochemical cell

A novel binuclear metal complex according to the present invention is an asymmetric binuclear metal complex represented by the general formula: (L)M(BL)M(L)(X), wherein Mand M, which may be identical or different, represent a transition metal; Land L, which are different, represent a chelate ligand capable of polydentate coordination and two Ls may be different and two Ls may be different; BL represents a bridge ligand having at least two heteroatom-containing cyclic structures, the heteroatoms contained in the cyclic structures being ligand atoms coordinating to Mand M; X represents a counter ion; and n is the number of counter ions needed to neutralize the charge of the complex. And the binuclear metal complex is useful as a metal complex dye.

Binuclear metal complex, metal complex dye, photoelectric conversion element, and photochemical battery

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Ichihara, Japan

Takafumi Iwasa