Phosphine oxide group-contained transition metal complex, and polymer, mixture, composition, and organic electronic device thereof

A phosphine oxide-containing transition metal complex having a structural formula represented by Chemical Formula (1):

• wherein:
• P is a phosphorus atom, O is an oxygen atom, P and O form a phosphine oxide group with a double bond;
• M is a metal atom selected from the group consisting of iridium, gold, platinum, ruthenium, rhodium, osmium, rhenium, nickel, copper, silver, zinc, tungsten or palladium;
• n is 0, 1 or 2;
• m is selected from 1, 2 or 3;
• at each occurrence, Ar1, Ar2, and G1 are independently selected from the group consisting of substituted or unsubstituted aromatic groups containing 5 to 20 ring atoms, substituted or unsubstituted heteroaromatic groups containing 5 to 20 ring atoms, or substituted or unsubstituted non-aromatic ring systems containing 5 to 20 ring atoms;
• at each occurrence, G2 is independently selected from the group consisting of hydrogen, deuterium, a halogen atom, a linear alkane containing 1 to 30 carbon atoms, a branched or cyclic alkane containing 3 to 30 carbon atoms, and a linear alkene containing 1 to 30 carbon atoms, a branched alkene containing 1 to 30 carbon atoms, an alkane ether containing 1 to 30 carbon atoms, an aromatic group containing 6 to 30 carbon atoms, a heteroaromatic group containing 5 to 30 ring atoms or a non-aromatic ring system containing 3 to 30 ring atoms;
• at each occurrence, G3 is independently selected from the group consisting of hydrogen, deuterium, a halogen atom, a linear alkane containing 1 to 30 carbon atoms, a branched or cyclic alkane containing 3 to 30 carbon atoms, and a linear alkene containing 1 to 30 carbon atoms, a branched alkene containing 1 to 30 carbon atoms, an alkane ether containing 1 to 30 carbon atoms, an aromatic group containing 6 to 30 carbon atoms, a heteroaromatic group containing 5 to 30 ring atoms or a non-aromatic ring system containing 3 to 30 ring atoms;
• at each occurrence, R1 and R2 are independently selected from the group consisting of deuterium, a halogen atom, a linear alkane containing 1 to 30 carbon atoms, a branched or cyclic alkane containing 3 to 30 carbon atoms, and a linear alkene containing 1 to 30 carbon atoms, a branched alkene containing 1 to 30 carbon atoms, an alkane ether containing 1 to 30 carbon atoms, an aromatic group containing 6 to 30 carbon atoms, a heteroaromatic group containing 5 to 30 ring atoms or a non-aromatic ring system containing 3 to 30 ring atoms, R1 and R2 may be directly connected to each other to form a ring;
• v is selected from any integer from 0 to 4.