metal-organic compounds
Chlorido[1-phenyl-3-(2,3,5,6-tetramethylbenzyl)benzimidazol-2-ylidene]silver(I)
aDepartment of Physics, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, bDepartment of Chemistry, Faculty of Sciences, Erciyes University, 38039 Kayseri, Turkey, cDepartment of Chemistry, Faculty of Arts and Sciences, Ínönü University, 44280 Malatya, Turkey, and dDepartment of Physics, University of Sargodha, Sargodha, Pakistan
*Correspondence e-mail: akkurt@erciyes.edu.tr
In the title compound, [AgCl(C24H24N2)], the terminal phenyl and tetramethylbenzene rings [which form a dihedral angle of 87.92 (14)°] make dihedral angles of 59.59 (11) and 83.19 (12)° with respect to the central benzimidazole ring system. The Ag—C and Ag—Cl single-bond lengths are 2.087 (3) and 2.3267 (9) Å. The C—Ag—Cl bond angle is 172.84 (7)°. C—H⋯π interactions contribute to the stabilization of the A very weak π–π stacking interaction between adjacent tetramethylbenzene rings [centroid–centroid distance = 4.0610 (18) Å] is also observed.
Related literature
For the synthesis, see: Yigit et al. (2012); Özdemir et al. (2010c). For applications of silver N-heterocyclic carbene complexes in synthesis, catalysis, nanomaterials, and biology, see: Arduengo et al. (1993); Guerret et al. (1997); Patil et al. (2011); Özdemir et al. (2010b); Liao et al. (2008). For related compounds, see: Patil et al. (2010); Zhou et al. (2008); Berding et al. (2009). For bond-length data, see: Özdemir et al. (2010a); Allen et al. (1987).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2009); cell SAINT (Bruker, 2009); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON.
Supporting information
10.1107/S1600536812012998/sj5223sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812012998/sj5223Isup2.hkl
For the originally reported synthesis, see: Yigit et al. (2012); Özdemir et al. (2010c). Single crystals of the title compound were obtained by recrystallization from dichloromethane/hexane at room temperature. (Yields: 0.281 g; 84%. M.p.: 524–525 K).
The H atoms were positioned geometrically with C—H = 0.93, C—H = 0.97 and C—H = 0.96 Å, for the aromatic, methylene and methyl H atoms, respectively and refined using a riding model with Uiso(H) = xUeq(C), where x = 1.5 for the methyl H atoms and x = 1.2 for all other H atoms.
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009); software used to prepare material for publication: WinGX (Farrugia, 1999) and PLATON (Spek, 2009).[AgCl(C24H24N2)] | F(000) = 984 |
Mr = 483.77 | Dx = 1.501 Mg m−3 |
Monoclinic, P21/n | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2yn | Cell parameters from 3354 reflections |
a = 9.1439 (2) Å | θ = 2.4–28.3° |
b = 18.7633 (4) Å | µ = 1.08 mm−1 |
c = 13.2710 (3) Å | T = 296 K |
β = 109.899 (1)° | Prism, white |
V = 2140.96 (8) Å3 | 0.35 × 0.22 × 0.20 mm |
Z = 4 |
Bruker Kappa APEXII CCD diffractometer | 5288 independent reflections |
Radiation source: fine-focus sealed tube | 3354 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.040 |
Detector resolution: 8.00 pixels mm-1 | θmax = 28.3°, θmin = 2.4° |
ω scans | h = −10→12 |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | k = −25→16 |
Tmin = 0.752, Tmax = 0.806 | l = −17→17 |
19846 measured reflections |
Refinement on F2 | Primary atom site location: structure-invariant direct methods |
Least-squares matrix: full | Secondary atom site location: difference Fourier map |
R[F2 > 2σ(F2)] = 0.036 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.080 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0308P)2 + 0.160P] where P = (Fo2 + 2Fc2)/3 |
5288 reflections | (Δ/σ)max = 0.001 |
257 parameters | Δρmax = 0.38 e Å−3 |
0 restraints | Δρmin = −0.38 e Å−3 |
[AgCl(C24H24N2)] | V = 2140.96 (8) Å3 |
Mr = 483.77 | Z = 4 |
Monoclinic, P21/n | Mo Kα radiation |
a = 9.1439 (2) Å | µ = 1.08 mm−1 |
b = 18.7633 (4) Å | T = 296 K |
c = 13.2710 (3) Å | 0.35 × 0.22 × 0.20 mm |
β = 109.899 (1)° |
Bruker Kappa APEXII CCD diffractometer | 5288 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 3354 reflections with I > 2σ(I) |
Tmin = 0.752, Tmax = 0.806 | Rint = 0.040 |
19846 measured reflections |
R[F2 > 2σ(F2)] = 0.036 | 0 restraints |
wR(F2) = 0.080 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.38 e Å−3 |
5288 reflections | Δρmin = −0.38 e Å−3 |
257 parameters |
Experimental. M.p.: 524–525 K. n(CN)=1593.31 cm-1. 1H NMR (DMSO) δ: 2.11, 2.18 (s, 12H, NCH2C6H(CH3)4-2,3,5,6); 5.61 (s, 2H, NCH2C6H(CH3)4-2,3,5,6); 6.66–7.87 (m, 10H, Ar-H). 13C NMR (DMSO) d: 16.4, 20.8 (NCH2C6H(CH3)4-2,3,5,6); 55.2 (NCH2C6H(CH3)4-2,3,5,6); 112.5, 112.8, 124.9, 125.4, 126.8, 129.8, 130.4, 131.3, 132.7, 133.9, 134.6, 138.9 (Ar-C); the carbene carbon was not detected. Analysis calculated for C24H24N2AgCl: C 59.58, H 5.00, N 5.79%. Found: C 59.56, H 5.01, N 5.78%. |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell e.s.d.'s are taken into account in the estimation of distances, angles and torsion angles |
Refinement. Refinement on F2 for ALL reflections except those flagged by the user for potential systematic errors. Weighted R-factors wR and all goodnesses of fit S are based on F2, conventional R-factors R are based on F, with F set to zero for negative F2. The observed criterion of F2 > σ(F2) is used only for calculating -R-factor-obs 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 | ||
Ag1 | 0.25184 (3) | 0.84953 (1) | 0.17444 (2) | 0.0476 (1) | |
Cl1 | 0.43000 (9) | 0.77142 (4) | 0.14398 (7) | 0.0572 (3) | |
N1 | −0.0611 (3) | 0.92849 (11) | 0.11403 (17) | 0.0370 (7) | |
N2 | 0.1099 (3) | 0.98412 (11) | 0.24355 (18) | 0.0419 (8) | |
C1 | −0.1317 (3) | 0.99141 (14) | 0.1290 (2) | 0.0383 (9) | |
C2 | −0.2743 (3) | 1.02215 (16) | 0.0728 (3) | 0.0516 (11) | |
C3 | −0.3022 (4) | 1.08812 (18) | 0.1066 (3) | 0.0633 (14) | |
C4 | −0.1939 (4) | 1.12282 (17) | 0.1930 (3) | 0.0600 (13) | |
C5 | −0.0523 (4) | 1.09315 (15) | 0.2480 (2) | 0.0490 (11) | |
C6 | −0.0233 (3) | 1.02675 (14) | 0.2127 (2) | 0.0400 (9) | |
C7 | 0.0885 (3) | 0.92485 (14) | 0.1829 (2) | 0.0407 (9) | |
C8 | −0.1372 (3) | 0.87529 (14) | 0.0361 (2) | 0.0365 (8) | |
C9 | −0.0741 (4) | 0.85480 (15) | −0.0403 (2) | 0.0458 (10) | |
C10 | −0.1480 (4) | 0.80302 (16) | −0.1139 (2) | 0.0552 (11) | |
C11 | −0.2846 (4) | 0.77302 (16) | −0.1119 (2) | 0.0552 (11) | |
C12 | −0.3471 (4) | 0.79363 (16) | −0.0351 (3) | 0.0536 (11) | |
C13 | −0.2733 (3) | 0.84494 (14) | 0.0388 (2) | 0.0443 (10) | |
C14 | 0.2555 (4) | 1.00783 (17) | 0.3248 (2) | 0.0575 (11) | |
C15 | 0.3702 (3) | 0.95064 (15) | 0.3774 (2) | 0.0452 (10) | |
C16 | 0.3525 (4) | 0.91300 (16) | 0.4642 (2) | 0.0480 (10) | |
C17 | 0.4668 (4) | 0.86531 (16) | 0.5207 (2) | 0.0579 (11) | |
C18 | 0.5916 (4) | 0.85445 (17) | 0.4869 (3) | 0.0675 (12) | |
C19 | 0.6107 (4) | 0.8891 (2) | 0.4013 (3) | 0.0639 (11) | |
C20 | 0.4998 (4) | 0.93808 (17) | 0.3455 (2) | 0.0556 (11) | |
C21 | 0.2094 (4) | 0.9235 (2) | 0.4940 (3) | 0.0758 (14) | |
C22 | 0.4607 (5) | 0.8255 (2) | 0.6185 (3) | 0.0917 (18) | |
C23 | 0.7508 (5) | 0.8708 (3) | 0.3695 (4) | 0.115 (2) | |
C24 | 0.5189 (5) | 0.9767 (2) | 0.2499 (3) | 0.0853 (17) | |
H2 | −0.34700 | 0.99920 | 0.01520 | 0.0620* | |
H3 | −0.39630 | 1.11050 | 0.07090 | 0.0760* | |
H4 | −0.21850 | 1.16730 | 0.21380 | 0.0720* | |
H5 | 0.02020 | 1.11610 | 0.30560 | 0.0590* | |
H9 | 0.01720 | 0.87570 | −0.04210 | 0.0550* | |
H10 | −0.10550 | 0.78830 | −0.16490 | 0.0660* | |
H11 | −0.33500 | 0.73880 | −0.16250 | 0.0660* | |
H12 | −0.43850 | 0.77290 | −0.03330 | 0.0640* | |
H13 | −0.31510 | 0.85920 | 0.09040 | 0.0530* | |
H14A | 0.22980 | 1.03330 | 0.38010 | 0.0690* | |
H14B | 0.30560 | 1.04140 | 0.29150 | 0.0690* | |
H18 | 0.66720 | 0.82180 | 0.52420 | 0.0810* | |
H21A | 0.22080 | 0.96590 | 0.53640 | 0.1140* | |
H21B | 0.19590 | 0.88320 | 0.53450 | 0.1140* | |
H21C | 0.12030 | 0.92820 | 0.43010 | 0.1140* | |
H22A | 0.37210 | 0.79440 | 0.59830 | 0.1370* | |
H22B | 0.45230 | 0.85900 | 0.67090 | 0.1370* | |
H22C | 0.55390 | 0.79790 | 0.64840 | 0.1370* | |
H23A | 0.71950 | 0.83940 | 0.30890 | 0.1730* | |
H23B | 0.82820 | 0.84780 | 0.42840 | 0.1730* | |
H23C | 0.79320 | 0.91370 | 0.35120 | 0.1730* | |
H24A | 0.59720 | 1.01290 | 0.27490 | 0.1280* | |
H24B | 0.42190 | 0.99840 | 0.20850 | 0.1280* | |
H24C | 0.54970 | 0.94330 | 0.20620 | 0.1280* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ag1 | 0.0405 (1) | 0.0420 (2) | 0.0554 (2) | 0.0047 (1) | 0.0098 (1) | −0.0002 (1) |
Cl1 | 0.0532 (5) | 0.0540 (5) | 0.0682 (5) | 0.0093 (4) | 0.0255 (4) | 0.0036 (4) |
N1 | 0.0355 (12) | 0.0364 (13) | 0.0371 (12) | 0.0020 (11) | 0.0096 (11) | −0.0018 (10) |
N2 | 0.0431 (14) | 0.0362 (14) | 0.0375 (13) | −0.0034 (11) | 0.0021 (11) | −0.0040 (11) |
C1 | 0.0378 (15) | 0.0395 (17) | 0.0397 (16) | 0.0031 (14) | 0.0158 (14) | 0.0020 (13) |
C2 | 0.0395 (17) | 0.055 (2) | 0.060 (2) | 0.0036 (15) | 0.0164 (16) | 0.0027 (16) |
C3 | 0.048 (2) | 0.053 (2) | 0.090 (3) | 0.0156 (17) | 0.025 (2) | 0.0087 (19) |
C4 | 0.071 (2) | 0.0398 (18) | 0.083 (3) | 0.0081 (19) | 0.044 (2) | −0.0009 (18) |
C5 | 0.062 (2) | 0.0382 (18) | 0.0521 (19) | −0.0015 (16) | 0.0265 (18) | −0.0025 (14) |
C6 | 0.0484 (17) | 0.0342 (16) | 0.0389 (16) | 0.0035 (14) | 0.0169 (14) | 0.0053 (12) |
C7 | 0.0400 (16) | 0.0394 (17) | 0.0381 (15) | −0.0002 (14) | 0.0074 (14) | 0.0011 (13) |
C8 | 0.0363 (15) | 0.0365 (15) | 0.0317 (14) | 0.0037 (13) | 0.0051 (13) | 0.0024 (12) |
C9 | 0.0493 (17) | 0.0513 (19) | 0.0390 (15) | −0.0054 (15) | 0.0179 (14) | −0.0013 (14) |
C10 | 0.074 (2) | 0.054 (2) | 0.0415 (18) | −0.0010 (18) | 0.0246 (18) | −0.0060 (15) |
C11 | 0.063 (2) | 0.0477 (19) | 0.0437 (18) | −0.0020 (17) | 0.0036 (17) | −0.0072 (15) |
C12 | 0.0391 (17) | 0.053 (2) | 0.066 (2) | −0.0026 (15) | 0.0143 (17) | −0.0038 (17) |
C13 | 0.0399 (16) | 0.0464 (18) | 0.0474 (17) | 0.0000 (15) | 0.0161 (14) | −0.0064 (14) |
C14 | 0.057 (2) | 0.0458 (19) | 0.0532 (19) | −0.0074 (17) | −0.0028 (16) | −0.0059 (15) |
C15 | 0.0407 (17) | 0.0428 (18) | 0.0400 (16) | −0.0072 (14) | −0.0018 (14) | −0.0065 (14) |
C16 | 0.0478 (18) | 0.0485 (19) | 0.0402 (17) | −0.0133 (15) | 0.0054 (15) | −0.0108 (14) |
C17 | 0.066 (2) | 0.049 (2) | 0.0400 (17) | −0.0114 (17) | −0.0063 (17) | −0.0023 (15) |
C18 | 0.057 (2) | 0.056 (2) | 0.064 (2) | 0.0075 (18) | −0.0126 (19) | −0.0112 (18) |
C19 | 0.0424 (19) | 0.074 (2) | 0.066 (2) | −0.0081 (19) | 0.0065 (18) | −0.022 (2) |
C20 | 0.056 (2) | 0.056 (2) | 0.0476 (18) | −0.0213 (17) | 0.0082 (17) | −0.0109 (16) |
C21 | 0.064 (2) | 0.100 (3) | 0.061 (2) | −0.014 (2) | 0.018 (2) | −0.015 (2) |
C22 | 0.123 (4) | 0.074 (3) | 0.052 (2) | −0.023 (3) | −0.004 (2) | 0.0150 (19) |
C23 | 0.057 (3) | 0.153 (5) | 0.131 (4) | 0.002 (3) | 0.026 (3) | −0.044 (4) |
C24 | 0.092 (3) | 0.098 (3) | 0.068 (3) | −0.037 (3) | 0.030 (2) | −0.003 (2) |
Ag1—Cl1 | 2.3267 (9) | C19—C20 | 1.382 (5) |
Ag1—C7 | 2.087 (3) | C19—C23 | 1.518 (6) |
N1—C1 | 1.392 (4) | C20—C24 | 1.522 (5) |
N1—C7 | 1.364 (4) | C2—H2 | 0.9300 |
N1—C8 | 1.435 (3) | C3—H3 | 0.9300 |
N2—C6 | 1.397 (4) | C4—H4 | 0.9300 |
N2—C7 | 1.348 (3) | C5—H5 | 0.9300 |
N2—C14 | 1.468 (4) | C9—H9 | 0.9300 |
C1—C2 | 1.388 (4) | C10—H10 | 0.9300 |
C1—C6 | 1.381 (4) | C11—H11 | 0.9300 |
C2—C3 | 1.370 (5) | C12—H12 | 0.9300 |
C3—C4 | 1.395 (5) | C13—H13 | 0.9300 |
C4—C5 | 1.370 (5) | C14—H14A | 0.9700 |
C5—C6 | 1.388 (4) | C14—H14B | 0.9700 |
C8—C9 | 1.381 (4) | C18—H18 | 0.9300 |
C8—C13 | 1.380 (4) | C21—H21A | 0.9600 |
C9—C10 | 1.380 (4) | C21—H21B | 0.9600 |
C10—C11 | 1.379 (5) | C21—H21C | 0.9600 |
C11—C12 | 1.383 (5) | C22—H22A | 0.9600 |
C12—C13 | 1.376 (4) | C22—H22B | 0.9600 |
C14—C15 | 1.497 (4) | C22—H22C | 0.9600 |
C15—C16 | 1.407 (4) | C23—H23A | 0.9600 |
C15—C20 | 1.407 (5) | C23—H23B | 0.9600 |
C16—C17 | 1.386 (4) | C23—H23C | 0.9600 |
C16—C21 | 1.503 (5) | C24—H24A | 0.9600 |
C17—C18 | 1.376 (5) | C24—H24B | 0.9600 |
C17—C22 | 1.515 (5) | C24—H24C | 0.9600 |
C18—C19 | 1.371 (5) | ||
Cl1—Ag1—C7 | 172.84 (7) | C2—C3—H3 | 119.00 |
C1—N1—C7 | 110.8 (2) | C4—C3—H3 | 119.00 |
C1—N1—C8 | 123.9 (2) | C3—C4—H4 | 119.00 |
C7—N1—C8 | 125.3 (2) | C5—C4—H4 | 119.00 |
C6—N2—C7 | 111.3 (2) | C4—C5—H5 | 122.00 |
C6—N2—C14 | 121.6 (2) | C6—C5—H5 | 122.00 |
C7—N2—C14 | 126.9 (3) | C8—C9—H9 | 120.00 |
N1—C1—C2 | 132.2 (3) | C10—C9—H9 | 120.00 |
N1—C1—C6 | 106.3 (2) | C9—C10—H10 | 120.00 |
C2—C1—C6 | 121.2 (3) | C11—C10—H10 | 120.00 |
C1—C2—C3 | 116.4 (3) | C10—C11—H11 | 120.00 |
C2—C3—C4 | 122.1 (3) | C12—C11—H11 | 120.00 |
C3—C4—C5 | 121.8 (3) | C11—C12—H12 | 120.00 |
C4—C5—C6 | 116.1 (3) | C13—C12—H12 | 120.00 |
N2—C6—C1 | 106.0 (2) | C8—C13—H13 | 120.00 |
N2—C6—C5 | 131.5 (3) | C12—C13—H13 | 120.00 |
C1—C6—C5 | 122.4 (3) | N2—C14—H14A | 108.00 |
Ag1—C7—N1 | 124.81 (18) | N2—C14—H14B | 108.00 |
Ag1—C7—N2 | 129.1 (2) | C15—C14—H14A | 108.00 |
N1—C7—N2 | 105.5 (2) | C15—C14—H14B | 108.00 |
N1—C8—C9 | 120.1 (3) | H14A—C14—H14B | 107.00 |
N1—C8—C13 | 119.2 (2) | C17—C18—H18 | 118.00 |
C9—C8—C13 | 120.7 (3) | C19—C18—H18 | 118.00 |
C8—C9—C10 | 119.3 (3) | C16—C21—H21A | 109.00 |
C9—C10—C11 | 120.2 (3) | C16—C21—H21B | 109.00 |
C10—C11—C12 | 120.3 (3) | C16—C21—H21C | 109.00 |
C11—C12—C13 | 119.7 (3) | H21A—C21—H21B | 110.00 |
C8—C13—C12 | 119.9 (3) | H21A—C21—H21C | 109.00 |
N2—C14—C15 | 116.2 (2) | H21B—C21—H21C | 110.00 |
C14—C15—C16 | 119.0 (3) | C17—C22—H22A | 110.00 |
C14—C15—C20 | 120.5 (3) | C17—C22—H22B | 109.00 |
C16—C15—C20 | 120.4 (3) | C17—C22—H22C | 109.00 |
C15—C16—C17 | 119.4 (3) | H22A—C22—H22B | 109.00 |
C15—C16—C21 | 120.2 (3) | H22A—C22—H22C | 109.00 |
C17—C16—C21 | 120.4 (3) | H22B—C22—H22C | 109.00 |
C16—C17—C18 | 118.4 (3) | C19—C23—H23A | 109.00 |
C16—C17—C22 | 122.7 (3) | C19—C23—H23B | 109.00 |
C18—C17—C22 | 118.9 (3) | C19—C23—H23C | 109.00 |
C17—C18—C19 | 123.6 (3) | H23A—C23—H23B | 109.00 |
C18—C19—C20 | 118.8 (3) | H23A—C23—H23C | 110.00 |
C18—C19—C23 | 118.7 (4) | H23B—C23—H23C | 109.00 |
C20—C19—C23 | 122.4 (4) | C20—C24—H24A | 109.00 |
C15—C20—C19 | 119.3 (3) | C20—C24—H24B | 109.00 |
C15—C20—C24 | 121.2 (3) | C20—C24—H24C | 109.00 |
C19—C20—C24 | 119.5 (3) | H24A—C24—H24B | 109.00 |
C1—C2—H2 | 122.00 | H24A—C24—H24C | 109.00 |
C3—C2—H2 | 122.00 | H24B—C24—H24C | 110.00 |
C7—N1—C1—C2 | 172.8 (3) | C4—C5—C6—C1 | −1.7 (4) |
C8—N1—C1—C2 | −7.1 (5) | N1—C8—C9—C10 | 179.3 (2) |
C7—N1—C1—C6 | −2.1 (3) | C9—C8—C13—C12 | 0.1 (4) |
C8—N1—C1—C6 | 178.0 (2) | C13—C8—C9—C10 | −0.5 (4) |
C1—N1—C7—Ag1 | −169.48 (19) | N1—C8—C13—C12 | −179.7 (3) |
C8—N1—C7—Ag1 | 10.4 (4) | C8—C9—C10—C11 | 1.0 (4) |
C1—N1—C7—N2 | 2.2 (3) | C9—C10—C11—C12 | −1.1 (5) |
C8—N1—C7—N2 | −178.0 (2) | C10—C11—C12—C13 | 0.8 (5) |
C7—N1—C8—C13 | 122.9 (3) | C11—C12—C13—C8 | −0.3 (4) |
C1—N1—C8—C9 | 123.0 (3) | N2—C14—C15—C16 | −83.2 (3) |
C7—N1—C8—C9 | −56.9 (4) | N2—C14—C15—C20 | 101.2 (3) |
C1—N1—C8—C13 | −57.2 (4) | C14—C15—C16—C17 | −173.2 (3) |
C7—N2—C14—C15 | −26.7 (4) | C14—C15—C16—C21 | 7.9 (4) |
C6—N2—C7—N1 | −1.4 (3) | C20—C15—C16—C17 | 2.4 (4) |
C14—N2—C7—N1 | −175.3 (3) | C20—C15—C16—C21 | −176.5 (3) |
C6—N2—C14—C15 | 160.1 (3) | C14—C15—C20—C19 | 174.6 (3) |
C14—N2—C6—C1 | 174.4 (2) | C14—C15—C20—C24 | −6.2 (4) |
C7—N2—C6—C5 | −176.4 (3) | C16—C15—C20—C19 | −0.9 (4) |
C14—N2—C6—C5 | −2.2 (5) | C16—C15—C20—C24 | 178.3 (3) |
C6—N2—C7—Ag1 | 169.7 (2) | C15—C16—C17—C18 | −2.5 (4) |
C14—N2—C7—Ag1 | −4.1 (4) | C15—C16—C17—C22 | 176.8 (3) |
C7—N2—C6—C1 | 0.2 (3) | C21—C16—C17—C18 | 176.4 (3) |
N1—C1—C2—C3 | −175.7 (3) | C21—C16—C17—C22 | −4.3 (5) |
N1—C1—C6—C5 | 178.1 (3) | C16—C17—C18—C19 | 1.1 (5) |
C6—C1—C2—C3 | −1.5 (5) | C22—C17—C18—C19 | −178.2 (3) |
C2—C1—C6—C5 | 2.5 (4) | C17—C18—C19—C20 | 0.4 (5) |
C2—C1—C6—N2 | −174.4 (3) | C17—C18—C19—C23 | −178.0 (4) |
N1—C1—C6—N2 | 1.1 (3) | C18—C19—C20—C15 | −0.5 (5) |
C1—C2—C3—C4 | −0.2 (5) | C18—C19—C20—C24 | −179.7 (3) |
C2—C3—C4—C5 | 1.0 (6) | C23—C19—C20—C15 | 177.9 (3) |
C3—C4—C5—C6 | 0.0 (5) | C23—C19—C20—C24 | −1.3 (5) |
C4—C5—C6—N2 | 174.4 (3) |
Cg2 and Cg3 are the centroids of the C1–C6 benzene and C8–C13 phenyl rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9···Cg2i | 0.93 | 2.69 | 3.507 (4) | 147 |
C22—H22A···Cg3ii | 0.96 | 2.80 | 3.525 (4) | 133 |
Symmetry codes: (i) −x, −y+2, −z; (ii) x+1/2, −y+3/2, z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [AgCl(C24H24N2)] |
Mr | 483.77 |
Crystal system, space group | Monoclinic, P21/n |
Temperature (K) | 296 |
a, b, c (Å) | 9.1439 (2), 18.7633 (4), 13.2710 (3) |
β (°) | 109.899 (1) |
V (Å3) | 2140.96 (8) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.08 |
Crystal size (mm) | 0.35 × 0.22 × 0.20 |
Data collection | |
Diffractometer | Bruker Kappa APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.752, 0.806 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 19846, 5288, 3354 |
Rint | 0.040 |
(sin θ/λ)max (Å−1) | 0.667 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.036, 0.080, 1.01 |
No. of reflections | 5288 |
No. of parameters | 257 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.38, −0.38 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 for Windows (Farrugia, 1997) and PLATON (Spek, 2009), WinGX (Farrugia, 1999) and PLATON (Spek, 2009).
Cg2 and Cg3 are the centroids of the C1–C6 benzene and C8–C13 phenyl rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
C9—H9···Cg2i | 0.93 | 2.69 | 3.507 (4) | 147 |
C22—H22A···Cg3ii | 0.96 | 2.80 | 3.525 (4) | 133 |
Symmetry codes: (i) −x, −y+2, −z; (ii) x+1/2, −y+3/2, z+1/2. |
Acknowledgements
The authors acknowledge the provision of funds for the purchase of a diffractometer and encouragement by Dr Muhammad Akram Chaudhary, Vice Chancellor, University of Sargodha, Pakistan. We also thank the İnönü University research fund (BAP 2011/35) for financial support.
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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.
N-Heterocyclic carbene complexes (NHCs) have developed significantly in organometallic chemistry and homogenous catalysis since discovered, and have become extremely popular. Silver NHC complexes have particular interest because of their wide use as ligand transfer agents for the synthesis other metal-NHC complexes, catalysis, nanomaterials, and also biological activity as antimicrobial agents (Arduengo et al., 1993; Guerret et al., 1997; Patil et al., 2011; Özdemir et al., 2010b; Liao et al., 2008; Patil et al., 2010; Zhou et al., 2008; Berding et al., 2009).
In connection with our papers on the synthesis of the new complexes with N-heterocyclic carbene ligands, (Yigit et al., 2012; Özdemir et al., 2010c), we report here the crystal structure of the title compound, chlorido-[1-phenyl-3-(2,3,5,6-tetramethylbenzyl)benzimidazol-2-ylidene]silver (I).
In the title compound (I), (Fig. 1), the five- and six-membered rings (N1/N2/C1/C6/C7) and (C1–C6) of the benzimidazole groups are almost co-planar with maximum deviations of -0.012 (2) Å for N1 and 0.012 (3) Å for C6, respectively. The dihedral angle between them is 4.53 (16)°. The C8–C13 phenyl and C15–C20 benzene rings make dihedral angles of 59.59 (11)° and 83.19 (12)°, respectively, with respect to the mean plane of the central N1/N2/C1–C7 benzimidazole ring system, while they make a dihedral angle of 87.92 (14)° with each other. The Ag—C and Ag—Cl single bond lengths are 2.087 (3) Å and 2.3267 (9) Å. The C—Ag—Cl bond angle is 172.84 (7)°. The values of the geometrical parameters of (I) are in agreement with those reported for similar compounds (Allen et al., 1987; Özdemir et al., 2010a).
The crystal structure is stabilized by C—H···π interactions (Table 1) and weak π-π stacking interactions between adjacent (C15–C20: Cg4) benzene rings [Cg4···Cg4(1 - x, 2 - y, 1 - z) = 4.0610 (18) Å]. Fig. 2 shows the packing of (I) in the unit cell, viewed along the a axis.