Metal complex and device using the metal complex

A composition comprising:

• a charge transporting material;
• and
• a metal complex represented by formula (1):
• wherein:
• in formula (1), n is 1 or 2:
• LA and LB each independently represent a moiety of a group bonded to an iridium atom except for coordinating atoms;
• a group represented by formula (1-1):
• means a group represented by formula (L1):
• wherein, in formula (L1), R1, R2, R3, R4, R5, R6 and R7 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group;
• Ar1 and Ar2 each independently represent an aryl group optionally having a substituent or a monovalent aromatic heterocyclic group optionally having a substituent;
• X1 represents a bivalent group in which two or more groups selected from among the group consisting of an arylene group, a bivalent aromatic heterocyclic group, and an ethynylene group are directly bonded to each other, an arylene group, a bivalent aromatic heterocyclic group, an ethynylene group, or a direct bond;
• a group represented by formula (1-2):
• is different from the group represented by the formula (1-1) and means a group represented by formula (L2):
• wherein, in formula (L2), R8, R9, R10, R11, R12, R13, R14 and R15 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group;
• and
• when two groups represented by the formula (1-1) are present, the groups represented by the formula (1-1) may be the same as or different from each other;
• and when two groups represented by the formula (1-2) are present, the groups represented by the formula (1-2) may be the same as or different each other.

A metal-containing polymer compound comprising:

• as a structural unit, a group derived from a metal complex represented by formula (1):
• wherein:
• in formula (1), n is 1 or 2:
• LA and LB each independently represent a moiety of a group bonded to an iridium atom except for coordinating atoms;
• a group represented by formula (1-1):
• means a group represented by formula (L1):
• wherein, in formula (L1), R1, R2, R3, R4, R5, R6 and R7 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group;
• Ar1 and Ar2 are each independently an aryl group optionally having a substituent or a monovalent aromatic heterocyclic group optionally having a substituent;
• X1 is a bivalent group in which two or more groups selected from among the group consisting of an arylene group, a bivalent aromatic heterocyclic group, and an ethynylene group are directly bonded to each other, an arylene group, a bivalent aromatic heterocyclic group, an ethynylene group, or a direct bond;
• a group represented by formula (1-2):
• is different from the group represented by the formula (1-1) and means a group represented by formula (L2):
• wherein, in formula (L2), R8, R9, R10, R11, R12, R13, R14 and R15 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group;
• and
• when two groups represented by the formula (1-1) are present, the groups represented by the formula (1-1) may be the same as or different from each other;
• and when two groups represented by the formula (1-2) are present, the groups represented by the formula (1-2) may be the same as or different from each other.

A composition comprising:

• a solvent or a dispersion medium;
• and
• a metal complex represented by formula (1):
• wherein:
• in formula (1), n is 1 or 2:
• LA and LB each independently represent a moiety of a group bonded to an iridium atom except for coordinating atoms;
• a group represented by formula (1-1):
• means a group represented by a formula (L1):
• wherein, in formula (L1), R1, R2, R3, R4, R5, R6 and R7 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group;
• Ar1 and Ar2 each independently represent an aryl group optionally having a substituent or a monovalent aromatic heterocyclic group optionally having a substituent;
• X1 represents a bivalent group in which two or more groups selected from among the group consisting of an arylene group, a bivalent aromatic heterocyclic group, and an ethynylene group are directly bonded to each other, an arylene group, a bivalent aromatic heterocyclic group, an ethynylene group, or a direct bond;
• a group represented by a formula (1-2):
• is different from the group represented by the formula (1-1) and means a group represented by formula (L2):
• wherein, in formula (L2), R8, R9, R10, R11, R12, R13, R14 and R15 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group;
• and
• when two groups represented by the formula (1-1) are present, the groups represented by the formula (1-1) may be the same as or different from each other;
• and when two groups represented by the formula (1-2) are present, the groups represented by the formula (1-2) may be the same as or different from each other.

A film comprising a metal complex represented by formula (1):

• wherein:
• in formula (1), n is 1 or 2:
• LA and LB each independently represent a moiety of a group bonded to an iridium atom except for coordinating atoms;
• a group represented by formula (1-1):
• means a group represented by formula (L1):
• wherein, in formula (L1), R1, R2, R3, R4, R5, R6 and R7 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group;
• Ar1 and Ar2 each independently represent an aryl group optionally having a substituent or a monovalent aromatic heterocyclic group optionally having a substituent;
• X1 represents a bivalent group in which two or more groups selected from among the group consisting of an arylene group, a bivalent aromatic heterocyclic group, and an ethynylene group are directly bonded to each other, an arylene group, a bivalent aromatic heterocyclic group, an ethynylene group, or a direct bond;
• a group represented by formula (1-2):
• is different from the group represented by the formula (1-1) and means a group represented by formula (L2):
• wherein, in formula (L2), R8, R9, R10, R11, R12, R13, R14 and R15 each independently represent a hydrogen atom, an alkyl group, an aryl group, a monovalent aromatic heterocyclic group, an alkoxy group, an aryloxy group, an aralkyl group, an arylalkoxy group, a substituted amino group, a substituted carbonyl group, a substituted carboxyl group, an alkenyl group, an alkynyl group, a halogen atom, or a cyano group);
• and
• when two groups represented by the formula (1-1) are present, the groups represented by the formula (1-1) may be the same as or different from each other;
• and when two groups represented by the formula (1-2) are present, the groups represented by the formula (1-2) may be the same as or different from each other.