Pyrromethene metal complex, pyrromethene compound, light-emitting element material, light-emitting element, display device, and illumination device

A pyrromethene metal complex represented by a general formula (1) or (2):

• wherein X represents C—R5 or N,
• R1 to R5 are the same or different from each other, and are each selected from a hydrogen atom, an alkyl group, a cycloalkyl group, a heterocyclic group, an alkenyl group, a cycloalkenyl group, an alkynyl group, an aryl group, a heteroaryl group, a hydroxyl group, a thiol group, an alkoxy group, an alkylthio group, an aryl ether group, an aryl thioether group, a halogen, a cyano group, an aldehyde group, an acyl group, a carboxyl group, an ester group, an amide group, a sulfonyl group, a sulfonic acid ester group, a sulfonamide group, an amino group, a nitro group, a silyl group, a siloxanyl group, a boryl group, a phosphine oxide group, and a ring structure with an adjacent group, and the groups that are substituted, a ring structure formed by R3 and R4 is a monocyclic ring, R1 is not a hydrogen atom and not a halogen in a case that Y1 is a trimethylene group,
• Ar1 and Ar2 are the same or different from each other, and are each selected from an aromatic hydrocarbon ring bonded to a substituent or no substituent and an aromatic heterocyclic ring bonded to a substituent or no substituent,
• Y1 is a bridging structure in which three or more atoms are bonded in series and form a double bond or no double bond with an adjacent atom, and the three or more atoms are selected from a carbon atom bonded to a substituent or no substituent, a silicon atom bonded to a substituent or no substituent, a nitrogen atom bonded to a substituent or no substituent, a phosphorus atom bonded to a substituent or no substituent, an oxygen atom, and a sulfur atom,
• Z1 is a bridging structure in which one or more atoms are bonded and form a double bond or no double bond with an adjacent atom, and the one or more atoms are selected from a carbon atom bonded to a substituent or no substituent, a silicon atom bonded to a substituent or no substituent, a nitrogen atom bonded to a substituent or no substituent, a phosphorus atom bonded to a substituent or no substituent, an oxygen atom, and a sulfur atom,
• M is boron, and m is 3,
• L is the same or different from each other, and are each selected from an alkyl group, a cycloalkyl group, a heterocyclic group, an alkenyl group, a cycloalkenyl group, an alkynyl group, a hydroxyl group, a thiol group, an alkoxy group, an alkylthio group, an aryl ether group, an aryl thioether group, an aryl group, a heteroaryl group, a halogen, and a cyano group, and the groups that are substituted.