Photoresponsive low-molecular weight material, adhesive, toner, and image forming method

A compound represented by a following Chemical Formula 1, the compound being reversibly fluidized and non-fluidized by being irradiated with light:

• wherein in the Chemical Formula 1,
• X represents NR10, O, or S;
• Z1 and Z2 each independently represent N or CH, while Z1≠Z2;
• R1 and R2 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an acyl group, an alkoxycarbonyl group, a cyano group, a nitro group, or a hydroxy group;
• R3 and R4 each independently represent a group represented by Chemical Formula 2, a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an acyl group, an alkoxycarbonyl group, a cyano group, a nitro group, or a hydroxy group;
• wherein either of R3 and R4 is a group represented by Chemical Formula 2;
• and
• R10 represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxycarbonyl group, or a hydroxy group;
• in the Chemical Formula 2,
• R5 to R9 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an acyl group, an alkoxycarbonyl group, a cyano group, a nitro group, or a hydroxy group;
• and
• wherein at least one of R5 to R9 represents an alkyl group having 1 to 18 carbon atoms, an alkoxy group having 1 to 18 carbon atoms, an acyl group having 2 to 19 carbon atoms, or an alkoxycarbonyl group having 2 to 19 carbon atoms.