Tetradentate and octahedral metal complexes containing naphthyridinocarbazole and its analogues

A complex of Formula BI, Formula BII, Formula BIII, or Formula BIV:

• wherein:
• Ar is substituted or unsubstituted aryl, cycloalkyl, cycloalkenyl, heteroaryl, heterocyclyl, carbene, or N-heterocyclic carbene,
• each of A1, A2, A3, A4, A5, and A6 is independently a single bond, CR1R2, C═O, SiR1R2, GeR1R2, NR3, PR3, R3P═O, AsR3, R3As═O, O, S, S═O, SO2, Se, Se═O, SeO2, BR3, R3Bi═O, or BiR3,
• each of X1, X2, and X3 is independently CR1, SiR1, GeR1, N, P, P═O, As, As═O, B, R3Bi═O or Bi,
• m=1, n=2 or m=2, n=1,
• each of Ra, Rb, Rc, Rd, Re, Rf, Rg, Rh, and Ri is independently present or absent, and if present each of Ra, Rb, Rc, Rd, Re, Rf, Rg, Rh, and Ri is independently a mono-, di-, or tri-substitution as valency permits, and each of Ra, Rb, Rc, Rd, Re, Rf, Rg, Rh, and Ri is independently deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino;
• substituted or unsubstituted:
• aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, polymeric;
• or any conjugate or combination thereof, and
• each of R1, R2 and R3 is independently hydrogen, deuterium, halogen, hydroxyl, thiol, nitro, cyano, nitrile, isonitrile, sulfinyl, mercapto, sulfo, carboxyl, hydrazino;
• substituted or unsubstituted:
• aryl, cycloalkyl, cycloalkenyl, heterocyclyl, heteroaryl, alkyl, alkenyl, alkynyl, amino, monoalkylamino, dialkylamino, monoarylamino, diarylamino, alkoxy, aryloxy, haloalkyl, aralkyl, ester, alkoxycarbonyl, acylamino, alkoxycarbonylamino, aryloxycarbonylamino, sulfonylamino, sulfamoyl, carbamoyl, alkylthio, ureido, phosphoramide, silyl, polymeric;
• or any conjugate or combination thereof.