metal-organic compounds
[2-Butyl-4-(4-tert-butylbenzyl)-1,2,4-triazol-3-ylidene]chlorido[(1,2,5,6-η)-cycloocta-1,5-diene]iridium(I)
aDepartment of Chemistry & Biochemistry, The University of Arizona, Tucson, AZ 85716, USA, and bDepartment of Chemistry, Millersville University, Millersville, PA 17551, USA
*Correspondence e-mail: gsnichol@email.arizona.edu
In the title compound, [IrCl(C8H12)(C17H25N3)], the IrI ion has a distorted square-planar coordination geometry. The N-heterocyclic carbene ligand has an extended S-shaped conformation. The butyl group was refined using a two-part 1:1 disorder model. In the crystal, three unique weak C—H⋯Cl contacts are present. Two of these form a motif described as R21(6) in graph-set notation, while a third forms an R22(8) motif about a crystallographic inversion center. The result is a chain structure which extends parallel to the crystallographic a axis.
Related literature
For steric and electronic effects in related N-heterocyclic carbene (NHC) ligands, see: Gusev (2009). For the synthesis, structures and dynamics of related NHC rhodium and iridium complexes, see: Köcher & Herrmann (1997); Wang & Lin (1998); Chianese et al. (2004); Herrmann et al. (2006); Nichol et al. (2009, 2010, 2011); Lu et al. (2011); Huttenstine et al. (2011). For the of related complexes, see: Hillier et al. (2001); Albrecht et al. (2002); Gnanamgari et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL and Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXTL and publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536812000992/fj2494sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812000992/fj2494Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812000992/fj2494Isup3.cdx
Unless otherwise stated, all chemicals were purchased from Sigma Aldrich and Strem and used without further purification, in the dark, and under a nitrogen atmosphere. 1-Butyl-1,2,4-triazole (2.0 g, 16 mmol) and 4-tert-butylbenzyl bromide (4.10 g, 18.0 mmol) were refluxed in toluene (15 ml) for 3 d. After cooling, ether (50 ml) was added and the white solid that formed was filtered, washed with ether and air dried (79%). Transmetalation in CH2Cl12 (10 ml) with 1-butyl-4-(4-tert-butylbenzyl)-1,2,4-triazolium bromide (0.166 g, 0.471 mmol), Ag2O (0.0565 g, 0.244 mmol), and [Ir(cod)Cl1]2 (0.1585 g, 0.236 mmol), gave a bright yellow solid (95%). X-ray quality crystals were grown from CH2Cl12/Pentanes by slow diffusion.
H atoms were initially located in a difference Fourier map and then refined with constrained C–H distances and Uiso(H)=1.5Ueq(C) for methyl H atoms, and Uiso(H)=1.2Ueq(C) for all other H atoms. C atoms C3 to C6 of the butyl chain were refined using a two-part disorder model with a refined major:minor occupancy ratio of approximately 1:1. Similarity restraints were used on the displacement ellipsoids of the disordered components.
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008) and Mercury (Macrae et al., (2006); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and publCIF (Westrip, 2010).Fig. 1. The structure of (I) with displacement ellipsoids at the 50% probability level. The minor disorder component is omitted. | |
Fig. 2. C–H···Cl contacts in (I), shown by blue dotted lines. |
[IrCl(C8H12)(C17H25N3)] | Z = 2 |
Mr = 607.23 | F(000) = 604 |
Triclinic, P1 | Dx = 1.686 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 10.2485 (3) Å | Cell parameters from 9406 reflections |
b = 11.2843 (3) Å | θ = 2.5–30.5° |
c = 11.9237 (4) Å | µ = 5.71 mm−1 |
α = 65.213 (2)° | T = 100 K |
β = 75.170 (2)° | Blade, yellow |
γ = 76.052 (2)° | 0.30 × 0.10 × 0.06 mm |
V = 1196.07 (6) Å3 |
Bruker Kappa APEXII DUO CCD diffractometer | 6993 independent reflections |
Radiation source: fine-focus sealed tube with Miracol optics | 6168 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.039 |
thin–slice ω scans | θmax = 30.0°, θmin = 1.9° |
Absorption correction: numerical (SADABS; Sheldrick, 1996) | h = −14→14 |
Tmin = 0.277, Tmax = 0.744 | k = −15→15 |
23768 measured reflections | l = −16→16 |
Refinement on F2 | Primary atom site location: heavy-atom method |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.025 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.059 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0323P)2] where P = (Fo2 + 2Fc2)/3 |
6993 reflections | (Δ/σ)max = 0.002 |
313 parameters | Δρmax = 1.33 e Å−3 |
106 restraints | Δρmin = −1.83 e Å−3 |
[IrCl(C8H12)(C17H25N3)] | γ = 76.052 (2)° |
Mr = 607.23 | V = 1196.07 (6) Å3 |
Triclinic, P1 | Z = 2 |
a = 10.2485 (3) Å | Mo Kα radiation |
b = 11.2843 (3) Å | µ = 5.71 mm−1 |
c = 11.9237 (4) Å | T = 100 K |
α = 65.213 (2)° | 0.30 × 0.10 × 0.06 mm |
β = 75.170 (2)° |
Bruker Kappa APEXII DUO CCD diffractometer | 6993 independent reflections |
Absorption correction: numerical (SADABS; Sheldrick, 1996) | 6168 reflections with I > 2σ(I) |
Tmin = 0.277, Tmax = 0.744 | Rint = 0.039 |
23768 measured reflections |
R[F2 > 2σ(F2)] = 0.025 | 106 restraints |
wR(F2) = 0.059 | H-atom parameters constrained |
S = 1.03 | Δρmax = 1.33 e Å−3 |
6993 reflections | Δρmin = −1.83 e Å−3 |
313 parameters |
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 | Occ. (<1) | |
Ir1 | 0.761759 (10) | 0.744995 (10) | 0.533869 (10) | 0.01659 (4) | |
Cl1 | 0.69986 (7) | 0.94124 (7) | 0.57356 (8) | 0.02660 (16) | |
N1 | 1.0046 (2) | 0.6417 (2) | 0.6693 (2) | 0.0195 (5) | |
N2 | 1.1331 (3) | 0.6607 (3) | 0.6683 (3) | 0.0229 (5) | |
N3 | 1.0507 (2) | 0.8038 (2) | 0.4997 (2) | 0.0175 (5) | |
C1 | 0.9505 (3) | 0.7272 (3) | 0.5684 (3) | 0.0173 (5) | |
C2 | 1.1573 (3) | 0.7598 (3) | 0.5638 (3) | 0.0217 (6) | |
H2 | 1.2391 | 0.7974 | 0.5349 | 0.026* | |
C3 | 0.939 (3) | 0.547 (2) | 0.792 (3) | 0.022 (3) | 0.496 (11) |
H3A | 1.0092 | 0.4931 | 0.8441 | 0.026* | 0.496 (11) |
H3B | 0.8961 | 0.4873 | 0.7761 | 0.026* | 0.496 (11) |
C4 | 0.8313 (8) | 0.6212 (7) | 0.8622 (6) | 0.0241 (17) | 0.496 (11) |
H4A | 0.7892 | 0.5561 | 0.9414 | 0.029* | 0.496 (11) |
H4B | 0.7589 | 0.6708 | 0.8112 | 0.029* | 0.496 (11) |
C5 | 0.8829 (10) | 0.7172 (8) | 0.8936 (8) | 0.0272 (16) | 0.496 (11) |
H5A | 0.9222 | 0.7847 | 0.8148 | 0.033* | 0.496 (11) |
H5B | 0.9565 | 0.6687 | 0.9435 | 0.033* | 0.496 (11) |
C6 | 0.770 (2) | 0.7856 (18) | 0.9672 (19) | 0.035 (4) | 0.496 (11) |
H6A | 0.6938 | 0.8280 | 0.9212 | 0.053* | 0.496 (11) |
H6B | 0.8056 | 0.8526 | 0.9781 | 0.053* | 0.496 (11) |
H6C | 0.7383 | 0.7203 | 1.0496 | 0.053* | 0.496 (11) |
C3' | 0.933 (3) | 0.551 (3) | 0.776 (3) | 0.023 (4) | 0.504 (11) |
H3'1 | 0.9867 | 0.4612 | 0.7964 | 0.028* | 0.504 (11) |
H3'2 | 0.8447 | 0.5481 | 0.7580 | 0.028* | 0.504 (11) |
C4' | 0.9051 (8) | 0.5896 (7) | 0.8904 (6) | 0.0251 (17) | 0.504 (11) |
H4'1 | 0.8552 | 0.5239 | 0.9632 | 0.030* | 0.504 (11) |
H4'2 | 0.9936 | 0.5863 | 0.9115 | 0.030* | 0.504 (11) |
C5' | 0.8240 (11) | 0.7245 (8) | 0.8698 (8) | 0.0318 (18) | 0.504 (11) |
H5'1 | 0.7400 | 0.7317 | 0.8395 | 0.038* | 0.504 (11) |
H5'2 | 0.8784 | 0.7915 | 0.8040 | 0.038* | 0.504 (11) |
C6' | 0.785 (2) | 0.7534 (17) | 0.9910 (18) | 0.031 (3) | 0.504 (11) |
H6'1 | 0.7287 | 0.6887 | 1.0557 | 0.047* | 0.504 (11) |
H6'2 | 0.7324 | 0.8424 | 0.9734 | 0.047* | 0.504 (11) |
H6'3 | 0.8675 | 0.7476 | 1.0207 | 0.047* | 0.504 (11) |
C7 | 1.0412 (3) | 0.9194 (3) | 0.3815 (3) | 0.0192 (5) | |
H7A | 1.0807 | 0.9903 | 0.3833 | 0.023* | |
H7B | 0.9437 | 0.9527 | 0.3748 | 0.023* | |
C8 | 1.1136 (3) | 0.8893 (3) | 0.2679 (3) | 0.0187 (5) | |
C9 | 1.0406 (3) | 0.8707 (3) | 0.1949 (3) | 0.0249 (6) | |
H9 | 0.9440 | 0.8773 | 0.2172 | 0.030* | |
C10 | 1.1065 (3) | 0.8425 (3) | 0.0896 (3) | 0.0251 (6) | |
H10 | 1.0541 | 0.8295 | 0.0417 | 0.030* | |
C11 | 1.2472 (3) | 0.8329 (3) | 0.0530 (3) | 0.0209 (6) | |
C12 | 1.3200 (3) | 0.8524 (3) | 0.1274 (3) | 0.0224 (6) | |
H12 | 1.4167 | 0.8457 | 0.1055 | 0.027* | |
C13 | 1.2544 (3) | 0.8812 (3) | 0.2317 (3) | 0.0219 (6) | |
H13 | 1.3063 | 0.8956 | 0.2792 | 0.026* | |
C14 | 1.3230 (4) | 0.8040 (3) | −0.0626 (3) | 0.0255 (6) | |
C15 | 1.4246 (4) | 0.6764 (4) | −0.0236 (3) | 0.0339 (8) | |
H15A | 1.4865 | 0.6841 | 0.0226 | 0.051* | |
H15B | 1.4776 | 0.6610 | −0.0986 | 0.051* | |
H15C | 1.3749 | 0.6022 | 0.0302 | 0.051* | |
C16 | 1.2278 (4) | 0.7869 (4) | −0.1330 (4) | 0.0402 (9) | |
H16A | 1.1774 | 0.7139 | −0.0769 | 0.060* | |
H16B | 1.2819 | 0.7675 | −0.2056 | 0.060* | |
H16C | 1.1633 | 0.8685 | −0.1616 | 0.060* | |
C17 | 1.3998 (5) | 0.9196 (4) | −0.1525 (3) | 0.0412 (10) | |
H17A | 1.3346 | 1.0016 | −0.1753 | 0.062* | |
H17B | 1.4473 | 0.9032 | −0.2284 | 0.062* | |
H17C | 1.4666 | 0.9277 | −0.1111 | 0.062* | |
C18 | 0.5782 (3) | 0.7866 (3) | 0.4531 (3) | 0.0234 (6) | |
H18 | 0.5357 | 0.8816 | 0.4244 | 0.028* | |
C19 | 0.5492 (3) | 0.7181 (3) | 0.5821 (3) | 0.0221 (6) | |
H19 | 0.4886 | 0.7727 | 0.6287 | 0.027* | |
C20 | 0.5410 (3) | 0.5724 (3) | 0.6472 (3) | 0.0262 (6) | |
H20A | 0.4537 | 0.5563 | 0.6389 | 0.031* | |
H20B | 0.5410 | 0.5447 | 0.7377 | 0.031* | |
C21 | 0.6599 (3) | 0.4876 (3) | 0.5934 (3) | 0.0255 (6) | |
H21A | 0.6756 | 0.3981 | 0.6588 | 0.031* | |
H21B | 0.6355 | 0.4788 | 0.5224 | 0.031* | |
C22 | 0.7903 (3) | 0.5482 (3) | 0.5485 (3) | 0.0207 (6) | |
H22 | 0.8681 | 0.4900 | 0.5911 | 0.025* | |
C23 | 0.8308 (3) | 0.6334 (3) | 0.4216 (3) | 0.0201 (6) | |
H23 | 0.9319 | 0.6235 | 0.3919 | 0.024* | |
C24 | 0.7486 (3) | 0.6750 (3) | 0.3190 (3) | 0.0232 (6) | |
H24A | 0.7545 | 0.5989 | 0.2960 | 0.028* | |
H24B | 0.7887 | 0.7457 | 0.2437 | 0.028* | |
C25 | 0.5969 (3) | 0.7254 (3) | 0.3581 (3) | 0.0242 (6) | |
H25A | 0.5602 | 0.7918 | 0.2829 | 0.029* | |
H25B | 0.5443 | 0.6508 | 0.3943 | 0.029* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ir1 | 0.01197 (5) | 0.01520 (5) | 0.02372 (6) | −0.00339 (3) | 0.00016 (4) | −0.00966 (4) |
Cl1 | 0.0150 (3) | 0.0200 (3) | 0.0505 (5) | −0.0050 (2) | 0.0037 (3) | −0.0230 (3) |
N1 | 0.0157 (11) | 0.0181 (11) | 0.0243 (13) | −0.0058 (9) | 0.0000 (9) | −0.0078 (10) |
N2 | 0.0194 (12) | 0.0250 (13) | 0.0261 (13) | −0.0042 (10) | −0.0061 (10) | −0.0098 (11) |
N3 | 0.0147 (11) | 0.0171 (11) | 0.0194 (12) | −0.0035 (9) | 0.0006 (9) | −0.0072 (9) |
C1 | 0.0164 (13) | 0.0159 (12) | 0.0191 (13) | −0.0011 (10) | −0.0006 (10) | −0.0085 (10) |
C2 | 0.0171 (13) | 0.0241 (14) | 0.0262 (15) | −0.0048 (11) | −0.0042 (11) | −0.0107 (12) |
C3 | 0.028 (6) | 0.017 (5) | 0.015 (7) | −0.014 (4) | −0.003 (4) | 0.004 (4) |
C4 | 0.024 (4) | 0.022 (3) | 0.022 (3) | −0.006 (3) | −0.004 (3) | −0.002 (2) |
C5 | 0.026 (4) | 0.024 (3) | 0.029 (4) | −0.008 (3) | −0.004 (3) | −0.006 (3) |
C6 | 0.045 (8) | 0.030 (8) | 0.019 (7) | −0.014 (6) | 0.007 (5) | −0.002 (5) |
C3' | 0.031 (6) | 0.020 (6) | 0.017 (7) | −0.003 (4) | −0.006 (4) | −0.005 (5) |
C4' | 0.027 (4) | 0.027 (3) | 0.017 (3) | −0.007 (3) | −0.005 (3) | −0.001 (2) |
C5' | 0.039 (5) | 0.028 (3) | 0.024 (4) | −0.003 (3) | −0.002 (3) | −0.008 (3) |
C6' | 0.044 (6) | 0.030 (8) | 0.018 (7) | −0.006 (6) | −0.007 (5) | −0.008 (6) |
C7 | 0.0166 (13) | 0.0160 (12) | 0.0207 (14) | −0.0037 (10) | 0.0011 (10) | −0.0048 (10) |
C8 | 0.0163 (13) | 0.0170 (13) | 0.0205 (13) | −0.0040 (10) | −0.0007 (10) | −0.0058 (11) |
C9 | 0.0160 (13) | 0.0308 (16) | 0.0264 (15) | −0.0095 (12) | −0.0019 (11) | −0.0074 (13) |
C10 | 0.0227 (15) | 0.0305 (16) | 0.0272 (16) | −0.0087 (12) | −0.0042 (12) | −0.0136 (13) |
C11 | 0.0248 (15) | 0.0174 (13) | 0.0189 (13) | −0.0062 (11) | −0.0021 (11) | −0.0049 (11) |
C12 | 0.0151 (13) | 0.0266 (15) | 0.0242 (15) | −0.0039 (11) | −0.0002 (11) | −0.0100 (12) |
C13 | 0.0177 (13) | 0.0264 (15) | 0.0230 (14) | −0.0061 (11) | −0.0012 (11) | −0.0106 (12) |
C14 | 0.0337 (17) | 0.0228 (14) | 0.0200 (14) | −0.0059 (13) | −0.0013 (12) | −0.0093 (12) |
C15 | 0.039 (2) | 0.0299 (17) | 0.0320 (18) | −0.0018 (15) | −0.0023 (15) | −0.0154 (15) |
C16 | 0.049 (2) | 0.046 (2) | 0.036 (2) | 0.0002 (18) | −0.0140 (18) | −0.0261 (18) |
C17 | 0.063 (3) | 0.0307 (18) | 0.0233 (17) | −0.0152 (18) | 0.0110 (17) | −0.0101 (14) |
C18 | 0.0156 (13) | 0.0170 (13) | 0.0337 (17) | −0.0020 (10) | −0.0051 (12) | −0.0058 (12) |
C19 | 0.0112 (12) | 0.0230 (14) | 0.0330 (16) | −0.0047 (10) | 0.0016 (11) | −0.0135 (12) |
C20 | 0.0234 (15) | 0.0273 (16) | 0.0294 (16) | −0.0127 (12) | 0.0016 (12) | −0.0112 (13) |
C21 | 0.0300 (16) | 0.0169 (13) | 0.0290 (16) | −0.0079 (12) | −0.0072 (13) | −0.0047 (12) |
C22 | 0.0202 (14) | 0.0150 (12) | 0.0293 (15) | 0.0014 (10) | −0.0062 (11) | −0.0119 (11) |
C23 | 0.0150 (13) | 0.0207 (13) | 0.0280 (15) | −0.0010 (10) | −0.0036 (11) | −0.0134 (12) |
C24 | 0.0228 (15) | 0.0251 (15) | 0.0271 (15) | −0.0068 (12) | −0.0046 (12) | −0.0133 (12) |
C25 | 0.0176 (14) | 0.0244 (15) | 0.0326 (17) | −0.0060 (11) | −0.0075 (12) | −0.0096 (13) |
Ir1—Cl1 | 2.3618 (7) | C8—C13 | 1.389 (4) |
Ir1—C18 | 2.193 (3) | C9—H9 | 0.950 |
Ir1—C19 | 2.168 (3) | C9—C10 | 1.389 (5) |
Ir1—C22 | 2.106 (3) | C10—H10 | 0.950 |
Ir1—C23 | 2.092 (3) | C10—C11 | 1.387 (4) |
N1—N2 | 1.381 (3) | C11—C12 | 1.405 (4) |
N1—C1 | 1.340 (4) | C11—C14 | 1.522 (4) |
N1—C3 | 1.51 (3) | C12—H12 | 0.950 |
N1—C3' | 1.42 (3) | C12—C13 | 1.382 (4) |
N2—C2 | 1.293 (4) | C13—H13 | 0.950 |
N3—C1 | 1.369 (3) | C14—C15 | 1.529 (5) |
N3—C2 | 1.367 (4) | C14—C16 | 1.529 (5) |
N3—C7 | 1.471 (4) | C14—C17 | 1.536 (5) |
C2—H2 | 0.950 | C15—H15A | 0.980 |
C3—H3A | 0.990 | C15—H15B | 0.980 |
C3—H3B | 0.990 | C15—H15C | 0.980 |
C3—C4 | 1.51 (3) | C16—H16A | 0.980 |
C4—H4A | 0.990 | C16—H16B | 0.980 |
C4—H4B | 0.990 | C16—H16C | 0.980 |
C4—C5 | 1.519 (11) | C17—H17A | 0.980 |
C5—H5A | 0.990 | C17—H17B | 0.980 |
C5—H5B | 0.990 | C17—H17C | 0.980 |
C5—C6 | 1.52 (3) | C18—H18 | 1.000 |
C6—H6A | 0.980 | C18—C19 | 1.390 (5) |
C6—H6B | 0.980 | C18—C25 | 1.509 (5) |
C6—H6C | 0.980 | C19—H19 | 1.000 |
C3'—H3'1 | 0.990 | C19—C20 | 1.509 (4) |
C3'—H3'2 | 0.990 | C20—H20A | 0.990 |
C3'—C4' | 1.54 (3) | C20—H20B | 0.990 |
C4'—H4'1 | 0.990 | C20—C21 | 1.537 (5) |
C4'—H4'2 | 0.990 | C21—H21A | 0.990 |
C4'—C5' | 1.499 (12) | C21—H21B | 0.990 |
C5'—H5'1 | 0.990 | C21—C22 | 1.519 (4) |
C5'—H5'2 | 0.990 | C22—H22 | 1.000 |
C5'—C6' | 1.55 (2) | C22—C23 | 1.426 (4) |
C6'—H6'1 | 0.980 | C23—H23 | 1.000 |
C6'—H6'2 | 0.980 | C23—C24 | 1.512 (4) |
C6'—H6'3 | 0.980 | C24—H24A | 0.990 |
C7—H7A | 0.990 | C24—H24B | 0.990 |
C7—H7B | 0.990 | C24—C25 | 1.544 (4) |
C7—C8 | 1.500 (4) | C25—H25A | 0.990 |
C8—C9 | 1.387 (4) | C25—H25B | 0.990 |
Cl1—Ir1—C1 | 88.85 (8) | C9—C10—H10 | 119.3 |
Cl1—Ir1—C18 | 91.89 (8) | C9—C10—C11 | 121.4 (3) |
Cl1—Ir1—C19 | 90.20 (8) | H10—C10—C11 | 119.3 |
Cl1—Ir1—C22 | 164.65 (9) | C10—C11—C12 | 117.0 (3) |
Cl1—Ir1—C23 | 155.34 (9) | C10—C11—C14 | 123.1 (3) |
C1—Ir1—C18 | 167.26 (11) | C12—C11—C14 | 119.9 (3) |
C1—Ir1—C19 | 155.58 (12) | C11—C12—H12 | 119.2 |
C1—Ir1—C22 | 93.31 (11) | C11—C12—C13 | 121.5 (3) |
C1—Ir1—C23 | 93.28 (11) | H12—C12—C13 | 119.2 |
C18—Ir1—C19 | 37.16 (12) | C8—C13—C12 | 120.8 (3) |
C18—Ir1—C22 | 89.33 (11) | C8—C13—H13 | 119.6 |
C18—Ir1—C23 | 80.82 (12) | C12—C13—H13 | 119.6 |
C19—Ir1—C22 | 81.58 (11) | C11—C14—C15 | 109.6 (3) |
C19—Ir1—C23 | 97.63 (11) | C11—C14—C16 | 112.9 (3) |
C22—Ir1—C23 | 39.73 (12) | C11—C14—C17 | 108.7 (3) |
N2—N1—C1 | 113.8 (2) | C15—C14—C16 | 107.7 (3) |
N2—N1—C3 | 114.9 (12) | C15—C14—C17 | 109.8 (3) |
N2—N1—C3' | 121.3 (13) | C16—C14—C17 | 108.3 (3) |
C1—N1—C3 | 130.1 (12) | C14—C15—H15A | 109.5 |
C1—N1—C3' | 124.4 (13) | C14—C15—H15B | 109.5 |
N1—N2—C2 | 103.3 (2) | C14—C15—H15C | 109.5 |
C1—N3—C2 | 108.4 (2) | H15A—C15—H15B | 109.5 |
C1—N3—C7 | 125.7 (2) | H15A—C15—H15C | 109.5 |
C2—N3—C7 | 125.9 (2) | H15B—C15—H15C | 109.5 |
Ir1—C1—N1 | 128.0 (2) | C14—C16—H16A | 109.5 |
Ir1—C1—N3 | 129.1 (2) | C14—C16—H16B | 109.5 |
N1—C1—N3 | 102.8 (2) | C14—C16—H16C | 109.5 |
N2—C2—N3 | 111.7 (3) | H16A—C16—H16B | 109.5 |
N2—C2—H2 | 124.1 | H16A—C16—H16C | 109.5 |
N3—C2—H2 | 124.1 | H16B—C16—H16C | 109.5 |
N1—C3—H3A | 109.5 | C14—C17—H17A | 109.5 |
N1—C3—H3B | 109.5 | C14—C17—H17B | 109.5 |
N1—C3—C4 | 110.9 (16) | C14—C17—H17C | 109.5 |
H3A—C3—H3B | 108.1 | H17A—C17—H17B | 109.5 |
H3A—C3—C4 | 109.5 | H17A—C17—H17C | 109.5 |
H3B—C3—C4 | 109.5 | H17B—C17—H17C | 109.5 |
C3—C4—H4A | 108.5 | Ir1—C18—H18 | 114.0 |
C3—C4—H4B | 108.5 | Ir1—C18—C19 | 70.47 (17) |
C3—C4—C5 | 115.1 (12) | Ir1—C18—C25 | 113.0 (2) |
H4A—C4—H4B | 107.5 | H18—C18—C19 | 114.0 |
H4A—C4—C5 | 108.5 | H18—C18—C25 | 114.0 |
H4B—C4—C5 | 108.5 | C19—C18—C25 | 123.8 (3) |
C4—C5—H5A | 109.1 | Ir1—C19—C18 | 72.37 (17) |
C4—C5—H5B | 109.1 | Ir1—C19—H19 | 114.0 |
C4—C5—C6 | 112.3 (11) | Ir1—C19—C20 | 108.9 (2) |
H5A—C5—H5B | 107.9 | C18—C19—H19 | 114.0 |
H5A—C5—C6 | 109.1 | C18—C19—C20 | 125.5 (3) |
H5B—C5—C6 | 109.1 | H19—C19—C20 | 114.0 |
N1—C3'—H3'1 | 109.4 | C19—C20—H20A | 109.0 |
N1—C3'—H3'2 | 109.4 | C19—C20—H20B | 109.0 |
N1—C3'—C4' | 111.1 (17) | C19—C20—C21 | 112.7 (2) |
H3'1—C3'—H3'2 | 108.0 | H20A—C20—H20B | 107.8 |
H3'1—C3'—C4' | 109.4 | H20A—C20—C21 | 109.0 |
H3'2—C3'—C4' | 109.4 | H20B—C20—C21 | 109.0 |
C3'—C4'—H4'1 | 108.8 | C20—C21—H21A | 109.3 |
C3'—C4'—H4'2 | 108.8 | C20—C21—H21B | 109.3 |
C3'—C4'—C5' | 113.8 (12) | C20—C21—C22 | 111.5 (2) |
H4'1—C4'—H4'2 | 107.7 | H21A—C21—H21B | 108.0 |
H4'1—C4'—C5' | 108.8 | H21A—C21—C22 | 109.3 |
H4'2—C4'—C5' | 108.8 | H21B—C21—C22 | 109.3 |
C4'—C5'—H5'1 | 109.2 | Ir1—C22—C21 | 114.4 (2) |
C4'—C5'—H5'2 | 109.2 | Ir1—C22—H22 | 114.1 |
C4'—C5'—C6' | 112.1 (10) | Ir1—C22—C23 | 69.62 (16) |
H5'1—C5'—H5'2 | 107.9 | C21—C22—H22 | 114.1 |
H5'1—C5'—C6' | 109.2 | C21—C22—C23 | 122.9 (3) |
H5'2—C5'—C6' | 109.2 | H22—C22—C23 | 114.1 |
C5'—C6'—H6'1 | 109.5 | Ir1—C23—C22 | 70.66 (16) |
C5'—C6'—H6'2 | 109.5 | Ir1—C23—H23 | 113.9 |
C5'—C6'—H6'3 | 109.5 | Ir1—C23—C24 | 113.0 (2) |
H6'1—C6'—H6'2 | 109.5 | C22—C23—H23 | 113.9 |
H6'1—C6'—H6'3 | 109.5 | C22—C23—C24 | 124.1 (3) |
H6'2—C6'—H6'3 | 109.5 | H23—C23—C24 | 113.9 |
N3—C7—H7A | 109.0 | C23—C24—H24A | 109.1 |
N3—C7—H7B | 109.0 | C23—C24—H24B | 109.1 |
N3—C7—C8 | 113.0 (2) | C23—C24—C25 | 112.7 (3) |
H7A—C7—H7B | 107.8 | H24A—C24—H24B | 107.8 |
H7A—C7—C8 | 109.0 | H24A—C24—C25 | 109.1 |
H7B—C7—C8 | 109.0 | H24B—C24—C25 | 109.1 |
C7—C8—C9 | 120.5 (3) | C18—C25—C24 | 111.8 (2) |
C7—C8—C13 | 121.4 (3) | C18—C25—H25A | 109.2 |
C9—C8—C13 | 118.1 (3) | C18—C25—H25B | 109.2 |
C8—C9—H9 | 119.5 | C24—C25—H25A | 109.2 |
C8—C9—C10 | 121.1 (3) | C24—C25—H25B | 109.2 |
H9—C9—C10 | 119.5 | H25A—C25—H25B | 107.9 |
C1—N1—N2—C2 | −0.3 (3) | C12—C11—C14—C17 | −59.3 (4) |
C3—N1—N2—C2 | −169.4 (11) | Cl1—Ir1—C18—C19 | −87.83 (17) |
C3'—N1—N2—C2 | −172.6 (12) | Cl1—Ir1—C18—C25 | 152.7 (2) |
N2—N1—C1—Ir1 | −175.89 (19) | C1—Ir1—C18—C19 | 179.0 (4) |
N2—N1—C1—N3 | 0.3 (3) | C1—Ir1—C18—C25 | 59.6 (6) |
C3—N1—C1—Ir1 | −8.8 (13) | C19—Ir1—C18—C25 | −119.4 (3) |
C3—N1—C1—N3 | 167.3 (13) | C22—Ir1—C18—C19 | 76.87 (19) |
C3'—N1—C1—Ir1 | −3.9 (13) | C22—Ir1—C18—C25 | −42.6 (2) |
C3'—N1—C1—N3 | 172.3 (12) | C23—Ir1—C18—C19 | 115.85 (19) |
C2—N3—C1—Ir1 | 175.9 (2) | C23—Ir1—C18—C25 | −3.6 (2) |
C2—N3—C1—N1 | −0.2 (3) | Ir1—C18—C19—C20 | −100.9 (3) |
C7—N3—C1—Ir1 | −0.2 (4) | C25—C18—C19—Ir1 | 105.2 (3) |
C7—N3—C1—N1 | −176.3 (2) | C25—C18—C19—C20 | 4.3 (5) |
Cl1—Ir1—C1—N1 | 106.7 (2) | Cl1—Ir1—C19—C18 | 92.87 (17) |
Cl1—Ir1—C1—N3 | −68.5 (2) | Cl1—Ir1—C19—C20 | −144.7 (2) |
C18—Ir1—C1—N1 | −159.8 (4) | C1—Ir1—C19—C18 | −179.5 (2) |
C18—Ir1—C1—N3 | 25.0 (6) | C1—Ir1—C19—C20 | −57.0 (4) |
C19—Ir1—C1—N1 | 18.7 (4) | C18—Ir1—C19—C20 | 122.4 (3) |
C19—Ir1—C1—N3 | −156.5 (2) | C22—Ir1—C19—C18 | −100.14 (19) |
C22—Ir1—C1—N1 | −58.1 (3) | C22—Ir1—C19—C20 | 22.3 (2) |
C22—Ir1—C1—N3 | 126.7 (3) | C23—Ir1—C19—C18 | −63.68 (19) |
C23—Ir1—C1—N1 | −97.9 (3) | C23—Ir1—C19—C20 | 58.7 (2) |
C23—Ir1—C1—N3 | 86.9 (3) | Ir1—C19—C20—C21 | −36.1 (3) |
N1—N2—C2—N3 | 0.2 (3) | C18—C19—C20—C21 | 45.3 (4) |
C1—N3—C2—N2 | 0.0 (3) | C19—C20—C21—C22 | 32.9 (4) |
C7—N3—C2—N2 | 176.2 (3) | C20—C21—C22—Ir1 | −13.2 (3) |
N2—N1—C3—C4 | 103.3 (17) | C20—C21—C22—C23 | −93.8 (3) |
C1—N1—C3—C4 | −64 (2) | Cl1—Ir1—C22—C21 | 53.2 (4) |
N1—C3—C4—C5 | −59 (2) | Cl1—Ir1—C22—C23 | 171.1 (2) |
C3—C4—C5—C6 | −178.5 (15) | C1—Ir1—C22—C21 | 151.0 (2) |
N2—N1—C3'—C4' | 62 (2) | C1—Ir1—C22—C23 | −91.16 (18) |
C1—N1—C3'—C4' | −109.9 (17) | C18—Ir1—C22—C21 | −41.5 (2) |
C3—N1—C3'—C4' | 37 (16) | C18—Ir1—C22—C23 | 76.37 (18) |
N1—C3'—C4'—C5' | 59 (2) | C19—Ir1—C22—C21 | −5.0 (2) |
C3'—C4'—C5'—C6' | 173.5 (16) | C19—Ir1—C22—C23 | 112.85 (18) |
C1—N3—C7—C8 | −101.1 (3) | C23—Ir1—C22—C21 | −117.9 (3) |
C2—N3—C7—C8 | 83.4 (3) | Ir1—C22—C23—C24 | −105.2 (3) |
N3—C7—C8—C9 | 101.8 (3) | C21—C22—C23—Ir1 | 106.5 (3) |
N3—C7—C8—C13 | −79.1 (3) | C21—C22—C23—C24 | 1.3 (4) |
C7—C8—C9—C10 | −179.9 (3) | Cl1—Ir1—C23—C22 | −174.37 (15) |
C13—C8—C9—C10 | 1.1 (5) | Cl1—Ir1—C23—C24 | −54.6 (3) |
C8—C9—C10—C11 | −0.5 (5) | C1—Ir1—C23—C22 | 91.22 (18) |
C9—C10—C11—C12 | 0.3 (5) | C1—Ir1—C23—C24 | −149.0 (2) |
C9—C10—C11—C14 | −179.2 (3) | C18—Ir1—C23—C22 | −100.14 (18) |
C10—C11—C12—C13 | −0.7 (5) | C18—Ir1—C23—C24 | 19.7 (2) |
C14—C11—C12—C13 | 178.8 (3) | C19—Ir1—C23—C22 | −66.89 (18) |
C11—C12—C13—C8 | 1.3 (5) | C19—Ir1—C23—C24 | 52.9 (2) |
C7—C8—C13—C12 | 179.5 (3) | C22—Ir1—C23—C24 | 119.8 (3) |
C9—C8—C13—C12 | −1.4 (5) | Ir1—C23—C24—C25 | −32.7 (3) |
C10—C11—C14—C15 | −119.9 (3) | C22—C23—C24—C25 | 48.9 (4) |
C10—C11—C14—C16 | 0.0 (4) | Ir1—C18—C25—C24 | −12.7 (3) |
C10—C11—C14—C17 | 120.1 (4) | C19—C18—C25—C24 | −94.0 (3) |
C12—C11—C14—C15 | 60.6 (4) | C23—C24—C25—C18 | 29.2 (4) |
C12—C11—C14—C16 | −179.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···Cl1i | 0.95 | 2.84 | 3.568 (3) | 135 |
C7—H7A···Cl1i | 0.99 | 2.77 | 3.641 (3) | 147 |
C18—H18···Cl1ii | 1.00 | 2.74 | 3.617 (3) | 147 |
Symmetry codes: (i) −x+2, −y+2, −z+1; (ii) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [IrCl(C8H12)(C17H25N3)] |
Mr | 607.23 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 100 |
a, b, c (Å) | 10.2485 (3), 11.2843 (3), 11.9237 (4) |
α, β, γ (°) | 65.213 (2), 75.170 (2), 76.052 (2) |
V (Å3) | 1196.07 (6) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 5.71 |
Crystal size (mm) | 0.30 × 0.10 × 0.06 |
Data collection | |
Diffractometer | Bruker Kappa APEXII DUO CCD diffractometer |
Absorption correction | Numerical (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.277, 0.744 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 23768, 6993, 6168 |
Rint | 0.039 |
(sin θ/λ)max (Å−1) | 0.704 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.025, 0.059, 1.03 |
No. of reflections | 6993 |
No. of parameters | 313 |
No. of restraints | 106 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 1.33, −1.83 |
Computer programs: APEX2 (Bruker, 2007), SAINT (Bruker, 2007), SHELXTL (Sheldrick, 2008) and Mercury (Macrae et al., (2006), SHELXTL (Sheldrick, 2008) and publCIF (Westrip, 2010).
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2···Cl1i | 0.95 | 2.84 | 3.568 (3) | 135 |
C7—H7A···Cl1i | 0.99 | 2.77 | 3.641 (3) | 147 |
C18—H18···Cl1ii | 1.00 | 2.74 | 3.617 (3) | 147 |
Symmetry codes: (i) −x+2, −y+2, −z+1; (ii) −x+1, −y+2, −z+1. |
Acknowledgements
DPW thanks the Neimeyer–Hodgson research grant and Millersville University's student research grant. The diffractometer was purchased with funding from NSF grant CHE-0741837.
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This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
The title compound, (I), was prepared as part of our ongoing research into complexes of rhodium and iridium with N-heterocyclic carbene (NHC) ligands derived from 1,2,3-triazole (Nichol et al., 2009, 2010, 2011). The Ir center has an expected square planar conformation (Figure 1). The butyl group of the NHC ligand was refined using a two part disorder model, and both disorder components adopt an extended conformation. Three weak C–H···Cl contacts are present (Figure 2, Table 1). Two of these, involving H2 and H7A, combine to form a motif described in graph-set notion as R12(6), while the third involves H18 and a symmetry related molecule to form an R22(8) motif, about an inversion center. The combination of these two motifs is a chain structure, connected by weak C–H···Cl contacts, which extends parallel to the crystallographic a axis.