
Acta Cryst. (2008). E64, m490 [ doi:10.1107/S1600536808004443 ]
In the title compound, [Ir(C10H8N3)(C11H8N)2], the Ir center is octahedrally coordinated by the three chelating ligands, with two cyclometalated 2-pyridylphenyl ligands [Ir-N = 2.049 (5) and 2.030 (5) Å; Ir-C = 2.016 (6) and 2.012 (6) Å] and a bidentate 2-(phenyldiazenyl)pyrrolate ligand [Ir-N = 2.204 (5) and 2.079 (5) Å]. The Ir-N(diazenyl) bond is longer than the Ir-N(pyrrolate) bond. The structure is stabilized by aromatic
-
stacking, the shortest parallel distance between ring centroids being 3.426 (8) Å..
To a stirring solution of 2-(2-phenylazo)-1H-pyrrole (60 mg,0.35 mmol) in dichloromethane (15 ml), sodium acetate (23 mg, 0.28 mmol) and [IrCl(ppy)2]2 (150 mg, 0.14 mmol) were added. The mixture was allowed to stir under an argon atmosphere at room temperature for 12 h. Then, the mixture was diluted with water and extracted thrice with 10 ml of dichloromethane. The organic extracts were combined and dried over anhydrous magnesium sulfate. After the solvent was removed in vacuo, the resulting residue was subjected to flash chromatography on silica gel using dichloromethane to afford the title compound (yield 75%). Red crystals of (I) suitable for X-ray structure analysis were grown from the mixture of dichloromethane and petroleum ether (v/v, 1:6).
All H-atoms were positioned geometrically and refined using a riding model with d(C—H) = 0.93 Å and Uiso = 1.2Ueq (C).
Data collection: SMART (Bruker, 2001); cell refinement: SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Version 5.0; Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Version 5.0; Sheldrick, 2008).
| Fig. 1. The structure of (I), showing 50% probability displacement ellipsoids and the atom-numbering scheme. |
| [Ir(C10H8N3)(C11H8N)2] | F000 = 2624 |
| Mr = 670.76 | Dx = 1.729 Mg m−3 |
| Monoclinic, C2/c | Mo Kα radiation λ = 0.71073 Å |
| Hall symbol: -C 2yc | Cell parameters from 4482 reflections |
| a = 17.5606 (14) Å | θ = 4.6–52.7º |
| b = 11.0213 (9) Å | µ = 5.21 mm−1 |
| c = 26.673 (2) Å | T = 293 (2) K |
| β = 93.2820 (10)º | Prism, red |
| V = 5153.9 (7) Å3 | 0.22 × 0.14 × 0.06 mm |
| Z = 8 |
| Bruker SMART APEX CCD area-detector diffractometer | 5327 independent reflections |
| Radiation source: fine-focus sealed tube | 4228 reflections with I > 2σ(I) |
| Monochromator: graphite | Rint = 0.140 |
| T = 293(2) K | θmax = 26.5º |
| φ and ω scans | θmin = 2.2º |
| Absorption correction: multi-scan (SADABS; Sheldrick, 2001) | h = −21→22 |
| Tmin = 0.754, Tmax = 1.000 | k = −13→6 |
| 14220 measured reflections | l = −33→33 |
| Refinement on F2 | Secondary atom site location: difference Fourier map |
| Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
| R[F2 > 2σ(F2)] = 0.048 | H-atom parameters constrained |
| wR(F2) = 0.107 | w = 1/[σ2(Fo2) + (0.0284P)2] where P = (Fo2 + 2Fc2)/3 |
| S = 0.97 | (Δ/σ)max = 0.002 |
| 5327 reflections | Δρmax = 4.15 e Å−3 |
| 343 parameters | Δρmin = −2.37 e Å−3 |
| Primary atom site location: structure-invariant direct methods | Extinction correction: none |
| [Ir(C10H8N3)(C11H8N)2] | V = 5153.9 (7) Å3 |
| Mr = 670.76 | Z = 8 |
| Monoclinic, C2/c | Mo Kα |
| a = 17.5606 (14) Å | µ = 5.21 mm−1 |
| b = 11.0213 (9) Å | T = 293 (2) K |
| c = 26.673 (2) Å | 0.22 × 0.14 × 0.06 mm |
| β = 93.2820 (10)º |
| Bruker SMART APEX CCD area-detector diffractometer | 5327 independent reflections |
| Absorption correction: multi-scan (SADABS; Sheldrick, 2001) | 4228 reflections with I > 2σ(I) |
| Tmin = 0.754, Tmax = 1.000 | Rint = 0.140 |
| 14220 measured reflections |
| R[F2 > 2σ(F2)] = 0.048 | 343 parameters |
| wR(F2) = 0.107 | H-atom parameters constrained |
| S = 0.97 | Δρmax = 4.15 e Å−3 |
| 5327 reflections | Δρmin = −2.37 e Å−3 |
Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes. |
Refinement. Refinement of F2 against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The threshold expression of F2 > σ(F2) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F2 are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger. |
| x | y | z | Uiso*/Ueq | ||
| Ir | 0.118518 (14) | 0.76861 (2) | 0.384282 (9) | 0.02997 (11) | |
| N1 | 0.0029 (3) | 0.6954 (5) | 0.3915 (2) | 0.0339 (12) | |
| N2 | −0.0012 (3) | 0.5952 (5) | 0.4165 (2) | 0.0366 (13) | |
| N3 | 0.1331 (3) | 0.6047 (5) | 0.42223 (18) | 0.0332 (12) | |
| N4 | 0.1050 (3) | 0.8704 (5) | 0.44743 (17) | 0.0312 (12) | |
| N5 | 0.1403 (3) | 0.6834 (5) | 0.31918 (18) | 0.0358 (12) | |
| C1 | 0.0655 (4) | 0.5480 (6) | 0.4316 (3) | 0.0392 (16) | |
| C2 | 0.0800 (4) | 0.4391 (6) | 0.4596 (3) | 0.0487 (19) | |
| H2 | 0.0442 | 0.3854 | 0.4712 | 0.058* | |
| C3 | 0.1589 (5) | 0.4304 (7) | 0.4660 (3) | 0.052 (2) | |
| H3 | 0.1866 | 0.3689 | 0.4825 | 0.063* | |
| C4 | 0.1888 (4) | 0.5342 (7) | 0.4422 (3) | 0.0485 (19) | |
| H4 | 0.2405 | 0.5509 | 0.4408 | 0.058* | |
| C5 | −0.0713 (4) | 0.7448 (6) | 0.3781 (3) | 0.0353 (16) | |
| C6 | −0.1359 (4) | 0.7030 (7) | 0.3983 (3) | 0.0497 (19) | |
| H6 | −0.1327 | 0.6402 | 0.4216 | 0.060* | |
| C7 | −0.2066 (5) | 0.7536 (8) | 0.3844 (4) | 0.065 (3) | |
| H7 | −0.2503 | 0.7227 | 0.3978 | 0.079* | |
| C8 | −0.2124 (4) | 0.8471 (8) | 0.3516 (3) | 0.060 (2) | |
| H8 | −0.2597 | 0.8820 | 0.3434 | 0.072* | |
| C9 | −0.1483 (4) | 0.8905 (8) | 0.3305 (3) | 0.059 (2) | |
| H9 | −0.1523 | 0.9549 | 0.3080 | 0.071* | |
| C10 | −0.0775 (4) | 0.8385 (7) | 0.3426 (2) | 0.0458 (18) | |
| H10 | −0.0345 | 0.8658 | 0.3273 | 0.055* | |
| C11 | 0.1086 (4) | 0.8273 (7) | 0.4944 (2) | 0.0412 (16) | |
| H11 | 0.1147 | 0.7442 | 0.4992 | 0.049* | |
| C12 | 0.1037 (4) | 0.8995 (7) | 0.5356 (2) | 0.0483 (19) | |
| H12 | 0.1046 | 0.8655 | 0.5676 | 0.058* | |
| C13 | 0.0976 (4) | 1.0214 (8) | 0.5296 (3) | 0.054 (2) | |
| H13 | 0.0958 | 1.0724 | 0.5573 | 0.065* | |
| C14 | 0.0939 (4) | 1.0684 (7) | 0.4814 (3) | 0.0498 (19) | |
| H14 | 0.0887 | 1.1517 | 0.4766 | 0.060* | |
| C15 | 0.0978 (4) | 0.9916 (6) | 0.4402 (2) | 0.0360 (15) | |
| C16 | 0.0931 (4) | 1.0276 (6) | 0.3870 (2) | 0.0372 (15) | |
| C17 | 0.0809 (4) | 1.1486 (7) | 0.3711 (3) | 0.054 (2) | |
| H17 | 0.0770 | 1.2102 | 0.3946 | 0.065* | |
| C18 | 0.0749 (5) | 1.1744 (8) | 0.3212 (4) | 0.065 (2) | |
| H18 | 0.0661 | 1.2536 | 0.3103 | 0.078* | |
| C19 | 0.0820 (4) | 1.0820 (8) | 0.2866 (3) | 0.055 (2) | |
| H19 | 0.0785 | 1.0997 | 0.2525 | 0.066* | |
| C20 | 0.0940 (4) | 0.9656 (7) | 0.3021 (3) | 0.0435 (17) | |
| H20 | 0.0980 | 0.9050 | 0.2781 | 0.052* | |
| C21 | 0.1005 (3) | 0.9341 (6) | 0.3536 (2) | 0.0328 (14) | |
| C22 | 0.2299 (4) | 0.8077 (6) | 0.3802 (2) | 0.0330 (14) | |
| C23 | 0.2771 (4) | 0.8709 (6) | 0.4162 (2) | 0.0388 (16) | |
| H23 | 0.2568 | 0.9012 | 0.4452 | 0.047* | |
| C24 | 0.3538 (4) | 0.8875 (6) | 0.4080 (3) | 0.0417 (17) | |
| H24 | 0.3839 | 0.9310 | 0.4315 | 0.050* | |
| C25 | 0.3867 (4) | 0.8421 (7) | 0.3667 (3) | 0.0475 (18) | |
| H25 | 0.4384 | 0.8534 | 0.3625 | 0.057* | |
| C26 | 0.3418 (4) | 0.7792 (6) | 0.3312 (3) | 0.0440 (18) | |
| H26 | 0.3630 | 0.7492 | 0.3025 | 0.053* | |
| C27 | 0.2634 (4) | 0.7606 (6) | 0.3388 (3) | 0.0361 (16) | |
| C28 | 0.2131 (4) | 0.6904 (6) | 0.3034 (2) | 0.0350 (15) | |
| C29 | 0.2321 (4) | 0.6370 (7) | 0.2595 (3) | 0.0487 (18) | |
| H29 | 0.2806 | 0.6485 | 0.2481 | 0.058* | |
| C30 | 0.1803 (5) | 0.5667 (7) | 0.2323 (3) | 0.056 (2) | |
| H30 | 0.1938 | 0.5294 | 0.2029 | 0.067* | |
| C31 | 0.1093 (4) | 0.5521 (8) | 0.2487 (3) | 0.055 (2) | |
| H31 | 0.0739 | 0.5027 | 0.2313 | 0.067* | |
| C32 | 0.0902 (4) | 0.6121 (7) | 0.2918 (3) | 0.051 (2) | |
| H32 | 0.0410 | 0.6032 | 0.3026 | 0.061* |
| U11 | U22 | U33 | U12 | U13 | U23 | |
| Ir | 0.02407 (15) | 0.03860 (17) | 0.02744 (14) | −0.00330 (11) | 0.00326 (9) | −0.00461 (11) |
| N1 | 0.027 (3) | 0.035 (3) | 0.040 (3) | −0.008 (3) | 0.004 (2) | −0.004 (3) |
| N2 | 0.031 (3) | 0.035 (3) | 0.044 (3) | −0.006 (3) | 0.010 (2) | −0.009 (3) |
| N3 | 0.039 (3) | 0.034 (3) | 0.027 (3) | −0.001 (3) | 0.006 (2) | −0.007 (2) |
| N4 | 0.021 (3) | 0.048 (3) | 0.025 (3) | −0.001 (3) | 0.006 (2) | −0.006 (2) |
| N5 | 0.029 (3) | 0.052 (3) | 0.027 (3) | −0.009 (3) | 0.002 (2) | −0.002 (3) |
| C1 | 0.028 (4) | 0.044 (4) | 0.046 (4) | −0.001 (3) | 0.006 (3) | −0.009 (3) |
| C2 | 0.046 (5) | 0.041 (4) | 0.060 (5) | −0.003 (4) | 0.014 (4) | 0.007 (4) |
| C3 | 0.053 (5) | 0.047 (4) | 0.057 (5) | 0.010 (4) | 0.001 (4) | 0.004 (4) |
| C4 | 0.030 (4) | 0.056 (5) | 0.060 (5) | 0.008 (4) | 0.004 (3) | −0.005 (4) |
| C5 | 0.024 (4) | 0.044 (4) | 0.038 (4) | 0.001 (3) | 0.006 (3) | −0.009 (3) |
| C6 | 0.039 (4) | 0.043 (4) | 0.068 (5) | 0.000 (4) | 0.016 (4) | 0.005 (4) |
| C7 | 0.027 (4) | 0.079 (6) | 0.091 (7) | −0.004 (4) | 0.012 (4) | −0.001 (5) |
| C8 | 0.038 (4) | 0.080 (6) | 0.062 (5) | 0.014 (5) | −0.003 (4) | −0.005 (5) |
| C9 | 0.040 (4) | 0.088 (6) | 0.049 (5) | 0.007 (5) | −0.001 (4) | 0.017 (4) |
| C10 | 0.029 (4) | 0.068 (5) | 0.041 (4) | 0.002 (4) | 0.006 (3) | 0.001 (4) |
| C11 | 0.036 (4) | 0.051 (4) | 0.037 (4) | 0.001 (4) | 0.003 (3) | 0.001 (3) |
| C12 | 0.044 (4) | 0.074 (6) | 0.027 (4) | −0.002 (4) | 0.006 (3) | −0.011 (4) |
| C13 | 0.047 (5) | 0.077 (6) | 0.038 (4) | 0.000 (4) | 0.000 (3) | −0.023 (4) |
| C14 | 0.047 (5) | 0.052 (5) | 0.050 (4) | 0.007 (4) | 0.001 (4) | −0.011 (4) |
| C15 | 0.024 (3) | 0.046 (4) | 0.039 (4) | 0.002 (3) | 0.004 (3) | −0.007 (3) |
| C16 | 0.028 (3) | 0.045 (4) | 0.039 (4) | 0.002 (3) | 0.003 (3) | 0.004 (3) |
| C17 | 0.048 (5) | 0.049 (5) | 0.067 (5) | 0.003 (4) | 0.007 (4) | 0.005 (4) |
| C18 | 0.047 (5) | 0.058 (5) | 0.091 (7) | 0.005 (5) | 0.004 (5) | 0.032 (5) |
| C19 | 0.037 (4) | 0.077 (6) | 0.052 (5) | −0.001 (4) | 0.007 (3) | 0.021 (4) |
| C20 | 0.035 (4) | 0.056 (5) | 0.039 (4) | −0.006 (4) | 0.005 (3) | 0.005 (3) |
| C21 | 0.026 (3) | 0.029 (3) | 0.045 (4) | −0.002 (3) | 0.013 (3) | 0.003 (3) |
| C22 | 0.030 (4) | 0.036 (3) | 0.033 (3) | −0.004 (3) | 0.001 (3) | 0.007 (3) |
| C23 | 0.030 (4) | 0.047 (4) | 0.040 (4) | −0.004 (3) | 0.001 (3) | −0.008 (3) |
| C24 | 0.030 (4) | 0.046 (4) | 0.048 (4) | −0.005 (3) | −0.008 (3) | 0.004 (3) |
| C25 | 0.021 (3) | 0.062 (5) | 0.059 (5) | −0.003 (4) | −0.001 (3) | 0.003 (4) |
| C26 | 0.032 (4) | 0.048 (4) | 0.053 (4) | 0.001 (3) | 0.016 (3) | −0.004 (3) |
| C27 | 0.033 (4) | 0.035 (4) | 0.041 (4) | 0.002 (3) | 0.006 (3) | −0.003 (3) |
| C28 | 0.029 (3) | 0.046 (4) | 0.031 (3) | 0.004 (3) | 0.006 (3) | 0.002 (3) |
| C29 | 0.046 (4) | 0.058 (5) | 0.044 (4) | 0.002 (4) | 0.015 (3) | −0.005 (4) |
| C30 | 0.059 (5) | 0.068 (5) | 0.040 (4) | 0.018 (5) | −0.002 (4) | −0.020 (4) |
| C31 | 0.045 (5) | 0.082 (6) | 0.038 (4) | 0.007 (4) | −0.010 (3) | −0.029 (4) |
| C32 | 0.037 (4) | 0.063 (5) | 0.054 (5) | −0.003 (4) | 0.004 (3) | −0.025 (4) |
| Ir—C22 | 2.012 (6) | C12—H12 | 0.9300 |
| Ir—C21 | 2.016 (6) | C13—C14 | 1.383 (10) |
| Ir—N5 | 2.030 (5) | C13—H13 | 0.9300 |
| Ir—N4 | 2.049 (5) | C14—C15 | 1.394 (9) |
| Ir—N3 | 2.079 (5) | C14—H14 | 0.9300 |
| Ir—N1 | 2.204 (5) | C15—C16 | 1.469 (9) |
| N1—N2 | 1.293 (7) | C16—C21 | 1.374 (9) |
| N1—C5 | 1.438 (9) | C16—C17 | 1.411 (10) |
| N2—C1 | 1.324 (8) | C17—C18 | 1.361 (11) |
| N3—C4 | 1.336 (8) | C17—H17 | 0.9300 |
| N3—C1 | 1.377 (8) | C18—C19 | 1.384 (12) |
| N4—C11 | 1.339 (8) | C18—H18 | 0.9300 |
| N4—C15 | 1.355 (9) | C19—C20 | 1.360 (10) |
| N5—C32 | 1.362 (8) | C19—H19 | 0.9300 |
| N5—C28 | 1.370 (8) | C20—C21 | 1.417 (9) |
| C1—C2 | 1.429 (9) | C20—H20 | 0.9300 |
| C2—C3 | 1.389 (11) | C22—C27 | 1.383 (10) |
| C2—H2 | 0.9300 | C22—C23 | 1.415 (8) |
| C3—C4 | 1.423 (10) | C23—C24 | 1.389 (9) |
| C3—H3 | 0.9300 | C23—H23 | 0.9300 |
| C4—H4 | 0.9300 | C24—C25 | 1.368 (9) |
| C5—C6 | 1.364 (10) | C24—H24 | 0.9300 |
| C5—C10 | 1.400 (10) | C25—C26 | 1.382 (10) |
| C6—C7 | 1.392 (11) | C25—H25 | 0.9300 |
| C6—H6 | 0.9300 | C26—C27 | 1.418 (11) |
| C7—C8 | 1.352 (12) | C26—H26 | 0.9300 |
| C7—H7 | 0.9300 | C27—C28 | 1.474 (9) |
| C8—C9 | 1.373 (11) | C28—C29 | 1.369 (9) |
| C8—H8 | 0.9300 | C29—C30 | 1.371 (10) |
| C9—C10 | 1.390 (9) | C29—H29 | 0.9300 |
| C9—H9 | 0.9300 | C30—C31 | 1.355 (11) |
| C10—H10 | 0.9300 | C30—H30 | 0.9300 |
| C11—C12 | 1.364 (9) | C31—C32 | 1.384 (9) |
| C11—H11 | 0.9300 | C31—H31 | 0.9300 |
| C12—C13 | 1.357 (11) | C32—H32 | 0.9300 |
| C22—Ir—C21 | 85.1 (2) | C13—C12—H12 | 120.3 |
| C22—Ir—N5 | 79.7 (2) | C11—C12—H12 | 120.3 |
| C21—Ir—N5 | 96.0 (2) | C12—C13—C14 | 118.7 (7) |
| C22—Ir—N4 | 94.9 (2) | C12—C13—H13 | 120.6 |
| C21—Ir—N4 | 79.4 (2) | C14—C13—H13 | 120.6 |
| N5—Ir—N4 | 173.2 (2) | C13—C14—C15 | 120.3 (7) |
| C22—Ir—N3 | 96.8 (2) | C13—C14—H14 | 119.9 |
| C21—Ir—N3 | 174.5 (2) | C15—C14—H14 | 119.9 |
| N5—Ir—N3 | 89.5 (2) | N4—C15—C14 | 119.6 (6) |
| N4—Ir—N3 | 95.3 (2) | N4—C15—C16 | 113.8 (6) |
| C22—Ir—N1 | 170.6 (2) | C14—C15—C16 | 126.5 (7) |
| C21—Ir—N1 | 104.0 (2) | C21—C16—C17 | 122.1 (6) |
| N5—Ir—N1 | 97.2 (2) | C21—C16—C15 | 114.9 (6) |
| N4—Ir—N1 | 88.74 (19) | C17—C16—C15 | 123.0 (7) |
| N3—Ir—N1 | 74.2 (2) | C18—C17—C16 | 119.6 (8) |
| N2—N1—C5 | 112.0 (5) | C18—C17—H17 | 120.2 |
| N2—N1—Ir | 115.9 (4) | C16—C17—H17 | 120.2 |
| C5—N1—Ir | 131.7 (4) | C17—C18—C19 | 119.6 (8) |
| N1—N2—C1 | 114.7 (6) | C17—C18—H18 | 120.2 |
| C4—N3—C1 | 106.4 (6) | C19—C18—H18 | 120.2 |
| C4—N3—Ir | 140.1 (5) | C20—C19—C18 | 120.7 (7) |
| C1—N3—Ir | 113.5 (4) | C20—C19—H19 | 119.6 |
| C11—N4—C15 | 118.9 (6) | C18—C19—H19 | 119.6 |
| C11—N4—Ir | 125.1 (5) | C19—C20—C21 | 121.8 (7) |
| C15—N4—Ir | 115.9 (4) | C19—C20—H20 | 119.1 |
| C32—N5—C28 | 117.0 (6) | C21—C20—H20 | 119.1 |
| C32—N5—Ir | 125.3 (5) | C16—C21—C20 | 116.1 (6) |
| C28—N5—Ir | 117.5 (4) | C16—C21—Ir | 115.7 (5) |
| N2—C1—N3 | 121.5 (6) | C20—C21—Ir | 128.1 (5) |
| N2—C1—C2 | 128.1 (7) | C27—C22—C23 | 117.9 (6) |
| N3—C1—C2 | 110.3 (6) | C27—C22—Ir | 115.0 (5) |
| C3—C2—C1 | 105.6 (7) | C23—C22—Ir | 127.0 (5) |
| C3—C2—H2 | 127.2 | C24—C23—C22 | 119.6 (6) |
| C1—C2—H2 | 127.2 | C24—C23—H23 | 120.2 |
| C2—C3—C4 | 106.3 (6) | C22—C23—H23 | 120.2 |
| C2—C3—H3 | 126.9 | C25—C24—C23 | 122.4 (6) |
| C4—C3—H3 | 126.9 | C25—C24—H24 | 118.8 |
| N3—C4—C3 | 111.4 (6) | C23—C24—H24 | 118.8 |
| N3—C4—H4 | 124.3 | C24—C25—C26 | 119.0 (6) |
| C3—C4—H4 | 124.3 | C24—C25—H25 | 120.5 |
| C6—C5—C10 | 118.8 (7) | C26—C25—H25 | 120.5 |
| C6—C5—N1 | 122.3 (6) | C25—C26—C27 | 119.6 (7) |
| C10—C5—N1 | 118.8 (6) | C25—C26—H26 | 120.2 |
| C5—C6—C7 | 120.5 (8) | C27—C26—H26 | 120.2 |
| C5—C6—H6 | 119.8 | C22—C27—C26 | 121.4 (6) |
| C7—C6—H6 | 119.8 | C22—C27—C28 | 116.2 (6) |
| C8—C7—C6 | 120.8 (9) | C26—C27—C28 | 122.4 (7) |
| C8—C7—H7 | 119.6 | N5—C28—C29 | 121.0 (6) |
| C6—C7—H7 | 119.6 | N5—C28—C27 | 111.6 (6) |
| C7—C8—C9 | 119.8 (8) | C29—C28—C27 | 127.3 (7) |
| C7—C8—H8 | 120.1 | C28—C29—C30 | 120.6 (7) |
| C9—C8—H8 | 120.1 | C28—C29—H29 | 119.7 |
| C8—C9—C10 | 120.3 (8) | C30—C29—H29 | 119.7 |
| C8—C9—H9 | 119.9 | C31—C30—C29 | 119.5 (7) |
| C10—C9—H9 | 119.9 | C31—C30—H30 | 120.3 |
| C9—C10—C5 | 119.7 (7) | C29—C30—H30 | 120.3 |
| C9—C10—H10 | 120.1 | C30—C31—C32 | 118.9 (7) |
| C5—C10—H10 | 120.1 | C30—C31—H31 | 120.6 |
| N4—C11—C12 | 123.1 (7) | C32—C31—H31 | 120.6 |
| N4—C11—H11 | 118.5 | N5—C32—C31 | 122.7 (7) |
| C12—C11—H11 | 118.5 | N5—C32—H32 | 118.6 |
| C13—C12—C11 | 119.4 (7) | C31—C32—H32 | 118.6 |
| C21—Ir—N1—N2 | −171.3 (4) | C11—N4—C15—C14 | −0.4 (9) |
| N5—Ir—N1—N2 | 90.7 (4) | Ir—N4—C15—C14 | −175.4 (5) |
| N4—Ir—N1—N2 | −92.6 (4) | C11—N4—C15—C16 | −178.9 (6) |
| N3—Ir—N1—N2 | 3.3 (4) | Ir—N4—C15—C16 | 6.0 (7) |
| C21—Ir—N1—C5 | 1.0 (6) | C13—C14—C15—N4 | 0.2 (11) |
| N5—Ir—N1—C5 | −97.1 (6) | C13—C14—C15—C16 | 178.6 (7) |
| N4—Ir—N1—C5 | 79.7 (6) | N4—C15—C16—C21 | −3.1 (9) |
| N3—Ir—N1—C5 | 175.5 (6) | C14—C15—C16—C21 | 178.4 (7) |
| C5—N1—N2—C1 | −177.5 (5) | N4—C15—C16—C17 | 176.2 (6) |
| Ir—N1—N2—C1 | −3.7 (7) | C14—C15—C16—C17 | −2.3 (12) |
| C22—Ir—N3—C4 | 2.4 (7) | C21—C16—C17—C18 | 1.2 (12) |
| N5—Ir—N3—C4 | 82.0 (7) | C15—C16—C17—C18 | −178.1 (7) |
| N4—Ir—N3—C4 | −93.2 (7) | C16—C17—C18—C19 | −1.0 (12) |
| N1—Ir—N3—C4 | 179.6 (7) | C17—C18—C19—C20 | 0.8 (12) |
| C22—Ir—N3—C1 | −179.4 (4) | C18—C19—C20—C21 | −0.7 (12) |
| N5—Ir—N3—C1 | −99.8 (4) | C17—C16—C21—C20 | −1.0 (10) |
| N4—Ir—N3—C1 | 85.0 (4) | C15—C16—C21—C20 | 178.3 (6) |
| N1—Ir—N3—C1 | −2.2 (4) | C17—C16—C21—Ir | 179.4 (6) |
| C22—Ir—N4—C11 | −95.9 (5) | C15—C16—C21—Ir | −1.3 (8) |
| C21—Ir—N4—C11 | −180.0 (5) | C19—C20—C21—C16 | 0.8 (10) |
| N3—Ir—N4—C11 | 1.5 (5) | C19—C20—C21—Ir | −179.7 (5) |
| N1—Ir—N4—C11 | 75.5 (5) | C22—Ir—C21—C16 | −92.5 (5) |
| C22—Ir—N4—C15 | 78.9 (5) | N5—Ir—C21—C16 | −171.6 (5) |
| C21—Ir—N4—C15 | −5.2 (4) | N4—Ir—C21—C16 | 3.4 (5) |
| N3—Ir—N4—C15 | 176.2 (4) | N1—Ir—C21—C16 | 89.4 (5) |
| N1—Ir—N4—C15 | −109.8 (5) | C22—Ir—C21—C20 | 88.0 (6) |
| C22—Ir—N5—C32 | 174.5 (6) | N5—Ir—C21—C20 | 8.9 (6) |
| C21—Ir—N5—C32 | −101.6 (6) | N4—Ir—C21—C20 | −176.1 (6) |
| N3—Ir—N5—C32 | 77.4 (6) | N1—Ir—C21—C20 | −90.1 (6) |
| N1—Ir—N5—C32 | 3.4 (6) | C21—Ir—C22—C27 | −97.3 (5) |
| C22—Ir—N5—C28 | −0.1 (5) | N5—Ir—C22—C27 | −0.3 (5) |
| C21—Ir—N5—C28 | 83.8 (5) | N4—Ir—C22—C27 | −176.2 (5) |
| N3—Ir—N5—C28 | −97.2 (5) | N3—Ir—C22—C27 | 87.9 (5) |
| N1—Ir—N5—C28 | −171.2 (5) | C21—Ir—C22—C23 | 86.6 (6) |
| N1—N2—C1—N3 | 1.8 (9) | N5—Ir—C22—C23 | −176.4 (6) |
| N1—N2—C1—C2 | −179.9 (6) | N4—Ir—C22—C23 | 7.8 (6) |
| C4—N3—C1—N2 | 179.9 (6) | N3—Ir—C22—C23 | −88.2 (6) |
| Ir—N3—C1—N2 | 1.1 (8) | C27—C22—C23—C24 | 2.4 (10) |
| C4—N3—C1—C2 | 1.4 (7) | Ir—C22—C23—C24 | 178.3 (5) |
| Ir—N3—C1—C2 | −177.4 (4) | C22—C23—C24—C25 | −1.7 (11) |
| N2—C1—C2—C3 | −179.7 (7) | C23—C24—C25—C26 | 1.1 (11) |
| N3—C1—C2—C3 | −1.3 (8) | C24—C25—C26—C27 | −1.4 (11) |
| C1—C2—C3—C4 | 0.6 (8) | C23—C22—C27—C26 | −2.7 (10) |
| C1—N3—C4—C3 | −1.0 (8) | Ir—C22—C27—C26 | −179.1 (5) |
| Ir—N3—C4—C3 | 177.3 (5) | C23—C22—C27—C28 | 177.1 (6) |
| C2—C3—C4—N3 | 0.2 (8) | Ir—C22—C27—C28 | 0.7 (8) |
| N2—N1—C5—C6 | 12.3 (9) | C25—C26—C27—C22 | 2.2 (11) |
| Ir—N1—C5—C6 | −160.2 (5) | C25—C26—C27—C28 | −177.6 (7) |
| N2—N1—C5—C10 | −167.2 (6) | C32—N5—C28—C29 | 6.0 (10) |
| Ir—N1—C5—C10 | 20.3 (9) | Ir—N5—C28—C29 | −179.0 (5) |
| C10—C5—C6—C7 | −0.7 (12) | C32—N5—C28—C27 | −174.5 (6) |
| N1—C5—C6—C7 | 179.8 (7) | Ir—N5—C28—C27 | 0.5 (8) |
| C5—C6—C7—C8 | −1.8 (14) | C22—C27—C28—N5 | −0.8 (9) |
| C6—C7—C8—C9 | 2.1 (14) | C26—C27—C28—N5 | 179.0 (6) |
| C7—C8—C9—C10 | 0.1 (13) | C22—C27—C28—C29 | 178.7 (7) |
| C8—C9—C10—C5 | −2.6 (12) | C26—C27—C28—C29 | −1.5 (11) |
| C6—C5—C10—C9 | 2.8 (11) | N5—C28—C29—C30 | −5.4 (11) |
| N1—C5—C10—C9 | −177.7 (6) | C27—C28—C29—C30 | 175.2 (7) |
| C15—N4—C11—C12 | 1.5 (10) | C28—C29—C30—C31 | 1.2 (12) |
| Ir—N4—C11—C12 | 176.0 (5) | C29—C30—C31—C32 | 2.1 (13) |
| N4—C11—C12—C13 | −2.4 (11) | C28—N5—C32—C31 | −2.6 (11) |
| C11—C12—C13—C14 | 2.1 (11) | Ir—N5—C32—C31 | −177.2 (6) |
| C12—C13—C14—C15 | −1.1 (12) | C30—C31—C32—N5 | −1.4 (13) |
| Ir—C22 | 2.012 (6) | Ir—N4 | 2.049 (5) |
| Ir—C21 | 2.016 (6) | Ir—N3 | 2.079 (5) |
| Ir—N5 | 2.030 (5) | Ir—N1 | 2.204 (5) |
| C22—Ir—C21 | 85.1 (2) | N5—Ir—N3 | 89.5 (2) |
| C22—Ir—N5 | 79.7 (2) | N4—Ir—N3 | 95.3 (2) |
| C21—Ir—N5 | 96.0 (2) | C22—Ir—N1 | 170.6 (2) |
| C22—Ir—N4 | 94.9 (2) | C21—Ir—N1 | 104.0 (2) |
| C21—Ir—N4 | 79.4 (2) | N5—Ir—N1 | 97.2 (2) |
| N5—Ir—N4 | 173.2 (2) | N4—Ir—N1 | 88.74 (19) |
| C22—Ir—N3 | 96.8 (2) | N3—Ir—N1 | 74.2 (2) |
| C21—Ir—N3 | 174.5 (2) |
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Transition-metal (Ir) complexes that display intense phosphorescence from metal-to-ligand charge transfer (MLCT) excited states have been widely investigated (Baldo et al., 2000; Pomestcheako et al., 2003; Chen et al., 2003). These Ir complexes with long excited-stated lifetimes and high luminescent efficiencies can be used in a variety of photonic applications such as photocatalysis and organic light-emitting diodes (Chin et al., 1995). We report here the molecular structure of (I), (Fig. 1).
In the title compound (I), all the bond lengths and angles fall within normal ranges. Moreover, the Ir—C bond lengths are found to be shorter than the Ir—N bond lengths. In comparison with bis(2-pyridylphenyl)(acetylacetonate) iridium (Ir(ppy)2(acac)) which was reported in the literature (Lamansky et al., 2001), this title complex displays longer Ir—N bond with the same cis-C, C trans-N, N chelate disposition. The dihedral angles between rings in the two ppy ligands are 5.2 (4)° [between rings N4/C11–C15 and C16–C21] and 5.5 (6)° [(between rings N5/C28–C32 and C22–C27].