Abstract: A secondary battery exhibiting high charge and discharge rate characteristics can be provided, by making the secondary battery have a cathode including a nitroxyl compound taking a nitroxyl cation substructure represented by the following formula (1) in an oxidized state and a nitroxyl radical substructure represented by the following formula (2) in a reduced state, an anode including an active material capable of reversibly intercalating and deintercalating a lithium ion, and an electrolyte solution including a lithium salt and an aprotic organic solvent, and employing Li[(FSO2)2N] as the lithium salt:

Abstract: A secondary battery exhibiting high charge and discharge rate characteristics can be provided, by making the secondary battery have a cathode including a nitroxyl compound taking a nitroxyl cation substructure represented by the following formula (1) in an oxidized state and a nitroxyl radical substructure represented by the following formula (2) in a reduced state, an anode including an active material capable of reversibly intercalating and deintercalating a lithium ion, and an electrolyte solution including a lithium salt and an aprotic organic solvent, and employing Li[(FSO2)2N] as the lithium salt:

Abstract: The present invention provides a compound useful as a photoelectric conversion dye having excellent photoelectric conversion performance. The compound according to the present invention is a thiazole-based compound represented by the following general formula (1), a tautomer or stereoisomer thereof, or a salt thereof. In the general formula (1), R1 represents a hydrogen atom, a substituted or unsubstituted, linear or branched alkyl group, or a substituted or unsubstituted aryl group, R2 represents a hydrogen atom, a substituted or unsubstituted, linear or branched alkyl group, or a cyano group, D represents an organic group comprising an electron-donating substituent, Z represents a linking group having a heteroaromatic ring or at least one hydrocarbon group selected from the group consisting of an aromatic ring, a vinylene group (—CH?CH—), or an ethynylene group (—C?C—), and M represents a hydrogen atom or a salt-forming cation.

Abstract: The present invention provides a compound useful as a photoelectric conversion dye having excellent photoelectric conversion performance. The compound according to the present invention is a thiazole-based compound represented by the following general formula (1), a tautomer or stereoisomer thereof, or a salt thereof. In the general formula (1), R1 represents a hydrogen atom, a substituted or unsubstituted, linear or branched alkyl group, or a substituted or unsubstituted aryl group, R2 represents a hydrogen atom, a substituted or unsubstituted, linear or branched alkyl group, or a cyano group, D represents an organic group comprising an electron-donating substituent, Z represents a linking group having a heteroaromatic ring or at least one hydrocarbon group selected from the group consisting of an aromatic ring, a vinylene group (—CH?CH—), or an ethynylene group (—C?C—), and M represents a hydrogen atom or a salt-forming cation.

Abstract: Provided is an indole compound represented by the following general formula (1): wherein in formula (1), R1 and R2 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group or a substituted or unsubstituted heterocyclic group; R3 to R6 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, an alkoxy group or a hydroxy group; X represents an organic group having an acidic group; and Z represents a linking group including at least one selected from the group consisting of a substituted or unsubstituted aromatic ring, a substituted or unsubstituted heterocyclic ring, a vinylene group and an ethynylene group.