organic compounds
3-[(8-Butoxyquinolin-2-yl)methyl]-1-(pyridin-2-ylmethyl)-1H-imidazol-3-ium hexafluoridophosphate
aChemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, School of Chemistry and Chemical Engineering, China West Normal University, Nanchong 637002, People's Republic of China
*Correspondence e-mail: qindabin2005@yahoo.com.cn
In the cation of the title compound, C23H25N4O+·PF6−, the imidazolium ring make dihedral angles of 87.20 (6) and 79.89 (5)° with the pyridine ring and the quinoline system, respectively. In the crystal, C—H⋯F and C—H⋯N hydrogen bonds are observed.
Related literature
For the first stable N-heterocyclic carbene, see: Arduengo et al. (1991). For the synthesis of 8-butoxy-quinoline-2-carbaldehyde, see: Maffeo et al. (2003), of 8-butoxy-2-chloromethyl-quinoline, see: Fowelin et al. (2007) and of 2-((1H-imidazol-1-yl)methyl)pyridine, see: Chiu et al. (2005). For ionic liquids from imidazolium salts, see: Heller et al. (2010). For standard bond lengths, see: Allen et al. (1987).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2005); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: CrystalStructure (Rigaku, 2005).
Supporting information
10.1107/S1600536812013414/fj2531sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812013414/fj2531Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812013414/fj2531Isup3.cml
8-Butoxy-2-chloromethyl-quinoline (Maffeo et al., 2003 and Fowelin et al., 2007) (2.49 g, 10 mmol) was added to a solution of 2-((1H-imidazol-1-yl)methyl)pyridine (Chiu et al., 2005) (1.59 g, 10 mmol) in 50 ml of THF. The mixture was refluxed for 48 h. The resulting precipitate was isolated and washed with THF(2 × 5 ml) and was then dissolved in methanol (20 ml). Adding an excess of NH4PF6 to the aqueous solution yielded the title compound. Colorless single crystals suitable for X-ray diffraction were obtained by recrystallization from acetonitrile and diethyl ether(v/v=1/4).
H atoms were placed in calculated positions with C—H = 0.95–0.99 Å, and refined in riding mode with Uiso(H) = 1.2Ueq(C).
Data collection: CrystalClear (Rigaku, 2005); cell
CrystalClear (Rigaku, 2005); data reduction: CrystalClear (Rigaku, 2005); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: CrystalStructure (Rigaku, 2005).C23H25N4O+·PF6− | Z = 2 |
Mr = 518.44 | F(000) = 536 |
Triclinic, P1 | Dx = 1.463 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 9.975 (3) Å | Cell parameters from 3783 reflections |
b = 11.056 (4) Å | θ = 1.8–27.9° |
c = 12.382 (4) Å | µ = 0.19 mm−1 |
α = 99.010 (4)° | T = 113 K |
β = 103.527 (3)° | Prism, colourless |
γ = 112.734 (3)° | 0.24 × 0.20 × 0.18 mm |
V = 1177.1 (7) Å3 |
Rigaku Saturn CCD area-detector diffractometer | 5531 independent reflections |
Radiation source: rotating anode | 2844 reflections with I > 2σ(I) |
Multilayer monochromator | Rint = 0.037 |
Detector resolution: 14.63 pixels mm-1 | θmax = 27.9°, θmin = 1.8° |
ω and ϕ scans | h = −13→13 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | k = −13→14 |
Tmin = 0.956, Tmax = 0.967 | l = −15→16 |
12352 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)] = 0.038 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.087 | H-atom parameters constrained |
S = 1.01 | w = 1/[σ2(Fo2) + (0.0259P)2] where P = (Fo2 + 2Fc2)/3 |
5531 reflections | (Δ/σ)max = 0.001 |
317 parameters | Δρmax = 0.58 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C23H25N4O+·PF6− | γ = 112.734 (3)° |
Mr = 518.44 | V = 1177.1 (7) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.975 (3) Å | Mo Kα radiation |
b = 11.056 (4) Å | µ = 0.19 mm−1 |
c = 12.382 (4) Å | T = 113 K |
α = 99.010 (4)° | 0.24 × 0.20 × 0.18 mm |
β = 103.527 (3)° |
Rigaku Saturn CCD area-detector diffractometer | 5531 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2005) | 2844 reflections with I > 2σ(I) |
Tmin = 0.956, Tmax = 0.967 | Rint = 0.037 |
12352 measured reflections |
R[F2 > 2σ(F2)] = 0.038 | 0 restraints |
wR(F2) = 0.087 | H-atom parameters constrained |
S = 1.01 | Δρmax = 0.58 e Å−3 |
5531 reflections | Δρmin = −0.24 e Å−3 |
317 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 | ||
O1 | 0.18574 (14) | −0.05015 (11) | 0.50857 (9) | 0.0261 (3) | |
N1 | 0.46828 (17) | 0.15399 (13) | 0.59818 (11) | 0.0207 (3) | |
N2 | 0.67464 (17) | 0.44123 (14) | 0.81155 (11) | 0.0222 (3) | |
N3 | 0.76044 (18) | 0.65447 (14) | 0.89753 (11) | 0.0243 (3) | |
N4 | 0.7840 (2) | 0.96366 (16) | 1.02355 (13) | 0.0430 (5) | |
C1 | 0.4087 (2) | 0.10204 (16) | 0.48018 (13) | 0.0199 (4) | |
C2 | 0.2576 (2) | −0.00743 (17) | 0.43121 (14) | 0.0230 (4) | |
C3 | 0.1955 (2) | −0.06110 (18) | 0.31350 (14) | 0.0266 (4) | |
H3 | 0.0950 | −0.1341 | 0.2805 | 0.032* | |
C4 | 0.2801 (2) | −0.00833 (18) | 0.24126 (14) | 0.0272 (4) | |
H4 | 0.2356 | −0.0472 | 0.1600 | 0.033* | |
C5 | 0.4231 (2) | 0.09621 (17) | 0.28470 (14) | 0.0258 (4) | |
H5 | 0.4769 | 0.1310 | 0.2341 | 0.031* | |
C6 | 0.4921 (2) | 0.15361 (17) | 0.40557 (14) | 0.0229 (4) | |
C7 | 0.6411 (2) | 0.26183 (17) | 0.45754 (15) | 0.0266 (4) | |
H7 | 0.7005 | 0.2993 | 0.4109 | 0.032* | |
C8 | 0.6998 (2) | 0.31251 (17) | 0.57488 (15) | 0.0275 (4) | |
H8 | 0.8000 | 0.3854 | 0.6107 | 0.033* | |
C9 | 0.6087 (2) | 0.25439 (17) | 0.64230 (14) | 0.0233 (4) | |
C10 | 0.0333 (2) | −0.15994 (17) | 0.46166 (14) | 0.0256 (4) | |
H10A | 0.0348 | −0.2408 | 0.4154 | 0.031* | |
H10B | −0.0352 | −0.1324 | 0.4105 | 0.031* | |
C11 | −0.0249 (2) | −0.19441 (17) | 0.55992 (14) | 0.0263 (4) | |
H11A | −0.0195 | −0.1114 | 0.6084 | 0.032* | |
H11B | 0.0421 | −0.2253 | 0.6087 | 0.032* | |
C12 | −0.1897 (2) | −0.30559 (18) | 0.51700 (14) | 0.0288 (4) | |
H12A | −0.2554 | −0.2771 | 0.4642 | 0.035* | |
H12B | −0.1937 | −0.3902 | 0.4725 | 0.035* | |
C13 | −0.2529 (2) | −0.33511 (18) | 0.61483 (15) | 0.0319 (5) | |
H13A | −0.1896 | −0.3654 | 0.6664 | 0.048* | |
H13B | −0.3588 | −0.4069 | 0.5831 | 0.048* | |
H13C | −0.2512 | −0.2521 | 0.6583 | 0.048* | |
C14 | 0.6703 (2) | 0.30680 (16) | 0.77246 (14) | 0.0252 (4) | |
H14A | 0.6045 | 0.2414 | 0.8059 | 0.030* | |
H14B | 0.7753 | 0.3138 | 0.8003 | 0.030* | |
C15 | 0.5510 (2) | 0.47198 (18) | 0.79151 (14) | 0.0265 (4) | |
H15 | 0.4474 | 0.4105 | 0.7479 | 0.032* | |
C16 | 0.6041 (2) | 0.60457 (18) | 0.84485 (14) | 0.0267 (4) | |
H16 | 0.5454 | 0.6547 | 0.8462 | 0.032* | |
C17 | 0.7995 (2) | 0.55370 (17) | 0.87609 (13) | 0.0237 (4) | |
H17 | 0.9003 | 0.5608 | 0.9026 | 0.028* | |
C18 | 0.8687 (2) | 0.79717 (18) | 0.96022 (16) | 0.0376 (5) | |
H18A | 0.8857 | 0.8516 | 0.9042 | 0.045* | |
H18B | 0.9686 | 0.8015 | 1.0025 | 0.045* | |
C19 | 0.8087 (2) | 0.85781 (17) | 1.04502 (15) | 0.0274 (4) | |
C20 | 0.7801 (2) | 0.80741 (19) | 1.13636 (15) | 0.0317 (5) | |
H20 | 0.7968 | 0.7308 | 1.1481 | 0.038* | |
C21 | 0.7279 (2) | 0.86810 (18) | 1.20933 (15) | 0.0320 (5) | |
H21 | 0.7099 | 0.8355 | 1.2736 | 0.038* | |
C22 | 0.7014 (2) | 0.97635 (19) | 1.18994 (16) | 0.0366 (5) | |
H22 | 0.6644 | 1.0200 | 1.2399 | 0.044* | |
C23 | 0.7295 (3) | 1.0200 (2) | 1.09668 (18) | 0.0528 (7) | |
H23 | 0.7096 | 1.0944 | 1.0825 | 0.063* | |
P1 | 0.80855 (6) | 0.43611 (5) | 0.15376 (4) | 0.02658 (13) | |
F1 | 0.93828 (12) | 0.57111 (10) | 0.14046 (9) | 0.0424 (3) | |
F2 | 0.93902 (13) | 0.42366 (12) | 0.24704 (9) | 0.0496 (3) | |
F3 | 0.78373 (14) | 0.52848 (11) | 0.25236 (8) | 0.0464 (3) | |
F4 | 0.68142 (13) | 0.30267 (10) | 0.16650 (9) | 0.0427 (3) | |
F5 | 0.68041 (12) | 0.45015 (10) | 0.05947 (8) | 0.0379 (3) | |
F6 | 0.83460 (13) | 0.34588 (10) | 0.05310 (9) | 0.0395 (3) |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0258 (8) | 0.0272 (7) | 0.0218 (6) | 0.0064 (6) | 0.0117 (6) | 0.0048 (5) |
N1 | 0.0231 (9) | 0.0193 (8) | 0.0218 (8) | 0.0122 (7) | 0.0083 (7) | 0.0022 (6) |
N2 | 0.0215 (9) | 0.0244 (8) | 0.0206 (8) | 0.0109 (7) | 0.0075 (7) | 0.0034 (7) |
N3 | 0.0233 (9) | 0.0214 (8) | 0.0245 (8) | 0.0071 (7) | 0.0104 (7) | −0.0007 (7) |
N4 | 0.0672 (14) | 0.0345 (10) | 0.0355 (10) | 0.0252 (10) | 0.0244 (10) | 0.0121 (8) |
C1 | 0.0242 (11) | 0.0191 (9) | 0.0205 (9) | 0.0134 (8) | 0.0083 (8) | 0.0048 (8) |
C2 | 0.0277 (11) | 0.0234 (10) | 0.0254 (10) | 0.0151 (9) | 0.0135 (9) | 0.0089 (8) |
C3 | 0.0263 (11) | 0.0277 (10) | 0.0235 (10) | 0.0108 (9) | 0.0073 (9) | 0.0049 (8) |
C4 | 0.0346 (12) | 0.0320 (11) | 0.0180 (10) | 0.0186 (10) | 0.0077 (9) | 0.0060 (8) |
C5 | 0.0356 (12) | 0.0277 (10) | 0.0244 (10) | 0.0180 (10) | 0.0173 (9) | 0.0125 (8) |
C6 | 0.0290 (11) | 0.0213 (10) | 0.0262 (10) | 0.0162 (9) | 0.0122 (9) | 0.0080 (8) |
C7 | 0.0308 (12) | 0.0242 (10) | 0.0340 (11) | 0.0149 (9) | 0.0191 (9) | 0.0121 (9) |
C8 | 0.0246 (11) | 0.0208 (10) | 0.0342 (11) | 0.0085 (9) | 0.0093 (9) | 0.0045 (8) |
C9 | 0.0281 (11) | 0.0200 (9) | 0.0240 (10) | 0.0141 (9) | 0.0079 (9) | 0.0033 (8) |
C10 | 0.0221 (11) | 0.0237 (10) | 0.0257 (10) | 0.0057 (9) | 0.0081 (9) | 0.0035 (8) |
C11 | 0.0292 (12) | 0.0269 (10) | 0.0257 (10) | 0.0138 (9) | 0.0120 (9) | 0.0067 (8) |
C12 | 0.0290 (12) | 0.0283 (10) | 0.0267 (10) | 0.0091 (9) | 0.0121 (9) | 0.0056 (8) |
C13 | 0.0351 (13) | 0.0314 (11) | 0.0372 (11) | 0.0160 (10) | 0.0203 (10) | 0.0136 (9) |
C14 | 0.0261 (11) | 0.0226 (9) | 0.0259 (10) | 0.0119 (9) | 0.0068 (9) | 0.0033 (8) |
C15 | 0.0181 (10) | 0.0295 (11) | 0.0293 (10) | 0.0102 (9) | 0.0063 (9) | 0.0036 (9) |
C16 | 0.0243 (11) | 0.0305 (11) | 0.0308 (11) | 0.0154 (9) | 0.0130 (9) | 0.0078 (9) |
C17 | 0.0212 (11) | 0.0310 (10) | 0.0193 (9) | 0.0119 (9) | 0.0085 (8) | 0.0040 (8) |
C18 | 0.0336 (13) | 0.0292 (11) | 0.0411 (12) | 0.0054 (10) | 0.0185 (10) | −0.0015 (9) |
C19 | 0.0282 (12) | 0.0216 (10) | 0.0280 (10) | 0.0082 (9) | 0.0103 (9) | 0.0007 (8) |
C20 | 0.0339 (13) | 0.0289 (11) | 0.0357 (11) | 0.0158 (10) | 0.0114 (10) | 0.0125 (9) |
C21 | 0.0320 (12) | 0.0333 (11) | 0.0232 (10) | 0.0074 (10) | 0.0092 (9) | 0.0063 (9) |
C22 | 0.0427 (14) | 0.0368 (12) | 0.0326 (11) | 0.0203 (11) | 0.0174 (10) | 0.0002 (10) |
C23 | 0.090 (2) | 0.0404 (13) | 0.0560 (15) | 0.0466 (14) | 0.0362 (14) | 0.0196 (12) |
P1 | 0.0242 (3) | 0.0309 (3) | 0.0284 (3) | 0.0139 (2) | 0.0126 (2) | 0.0076 (2) |
F1 | 0.0294 (7) | 0.0331 (6) | 0.0621 (8) | 0.0080 (6) | 0.0193 (6) | 0.0145 (6) |
F2 | 0.0400 (8) | 0.0768 (9) | 0.0428 (7) | 0.0351 (7) | 0.0096 (6) | 0.0261 (7) |
F3 | 0.0481 (8) | 0.0562 (8) | 0.0369 (7) | 0.0280 (7) | 0.0181 (6) | −0.0014 (6) |
F4 | 0.0401 (8) | 0.0363 (6) | 0.0662 (8) | 0.0170 (6) | 0.0334 (6) | 0.0272 (6) |
F5 | 0.0286 (7) | 0.0558 (7) | 0.0359 (6) | 0.0209 (6) | 0.0123 (5) | 0.0211 (6) |
F6 | 0.0346 (7) | 0.0393 (6) | 0.0431 (6) | 0.0149 (6) | 0.0204 (6) | −0.0012 (5) |
O1—C2 | 1.3621 (19) | C11—H11A | 0.9900 |
O1—C10 | 1.436 (2) | C11—H11B | 0.9900 |
N1—C9 | 1.320 (2) | C12—C13 | 1.514 (2) |
N1—C1 | 1.3729 (19) | C12—H12A | 0.9900 |
N2—C17 | 1.327 (2) | C12—H12B | 0.9900 |
N2—C15 | 1.380 (2) | C13—H13A | 0.9800 |
N2—C14 | 1.470 (2) | C13—H13B | 0.9800 |
N3—C17 | 1.324 (2) | C13—H13C | 0.9800 |
N3—C16 | 1.381 (2) | C14—H14A | 0.9900 |
N3—C18 | 1.471 (2) | C14—H14B | 0.9900 |
N4—C19 | 1.338 (2) | C15—C16 | 1.341 (2) |
N4—C23 | 1.348 (2) | C15—H15 | 0.9500 |
C1—C6 | 1.425 (2) | C16—H16 | 0.9500 |
C1—C2 | 1.427 (2) | C17—H17 | 0.9500 |
C2—C3 | 1.372 (2) | C18—C19 | 1.515 (2) |
C3—C4 | 1.410 (2) | C18—H18A | 0.9900 |
C3—H3 | 0.9500 | C18—H18B | 0.9900 |
C4—C5 | 1.353 (2) | C19—C20 | 1.377 (2) |
C4—H4 | 0.9500 | C20—C21 | 1.355 (2) |
C5—C6 | 1.414 (2) | C20—H20 | 0.9500 |
C5—H5 | 0.9500 | C21—C22 | 1.366 (2) |
C6—C7 | 1.411 (2) | C21—H21 | 0.9500 |
C7—C8 | 1.364 (2) | C22—C23 | 1.366 (3) |
C7—H7 | 0.9500 | C22—H22 | 0.9500 |
C8—C9 | 1.417 (2) | C23—H23 | 0.9500 |
C8—H8 | 0.9500 | P1—F4 | 1.5906 (12) |
C9—C14 | 1.510 (2) | P1—F2 | 1.5911 (12) |
C10—C11 | 1.506 (2) | P1—F5 | 1.5916 (11) |
C10—H10A | 0.9900 | P1—F3 | 1.5941 (11) |
C10—H10B | 0.9900 | P1—F6 | 1.6058 (11) |
C11—C12 | 1.524 (2) | P1—F1 | 1.6165 (12) |
C2—O1—C10 | 116.58 (13) | H13A—C13—H13B | 109.5 |
C9—N1—C1 | 117.78 (15) | C12—C13—H13C | 109.5 |
C17—N2—C15 | 108.25 (14) | H13A—C13—H13C | 109.5 |
C17—N2—C14 | 125.14 (15) | H13B—C13—H13C | 109.5 |
C15—N2—C14 | 126.58 (15) | N2—C14—C9 | 111.12 (13) |
C17—N3—C16 | 108.55 (15) | N2—C14—H14A | 109.4 |
C17—N3—C18 | 125.01 (17) | C9—C14—H14A | 109.4 |
C16—N3—C18 | 126.31 (15) | N2—C14—H14B | 109.4 |
C19—N4—C23 | 116.48 (16) | C9—C14—H14B | 109.4 |
N1—C1—C6 | 122.35 (16) | H14A—C14—H14B | 108.0 |
N1—C1—C2 | 118.46 (15) | C16—C15—N2 | 107.39 (16) |
C6—C1—C2 | 119.20 (15) | C16—C15—H15 | 126.3 |
O1—C2—C3 | 125.06 (17) | N2—C15—H15 | 126.3 |
O1—C2—C1 | 115.38 (15) | C15—C16—N3 | 106.97 (16) |
C3—C2—C1 | 119.56 (16) | C15—C16—H16 | 126.5 |
C2—C3—C4 | 120.29 (18) | N3—C16—H16 | 126.5 |
C2—C3—H3 | 119.9 | N3—C17—N2 | 108.84 (16) |
C4—C3—H3 | 119.9 | N3—C17—H17 | 125.6 |
C5—C4—C3 | 121.72 (17) | N2—C17—H17 | 125.6 |
C5—C4—H4 | 119.1 | N3—C18—C19 | 111.41 (15) |
C3—C4—H4 | 119.1 | N3—C18—H18A | 109.3 |
C4—C5—C6 | 119.87 (17) | C19—C18—H18A | 109.3 |
C4—C5—H5 | 120.1 | N3—C18—H18B | 109.3 |
C6—C5—H5 | 120.1 | C19—C18—H18B | 109.3 |
C7—C6—C5 | 123.27 (16) | H18A—C18—H18B | 108.0 |
C7—C6—C1 | 117.37 (16) | N4—C19—C20 | 122.50 (17) |
C5—C6—C1 | 119.36 (17) | N4—C19—C18 | 114.66 (16) |
C8—C7—C6 | 119.95 (17) | C20—C19—C18 | 122.83 (16) |
C8—C7—H7 | 120.0 | C21—C20—C19 | 119.39 (17) |
C6—C7—H7 | 120.0 | C21—C20—H20 | 120.3 |
C7—C8—C9 | 118.76 (17) | C19—C20—H20 | 120.3 |
C7—C8—H8 | 120.6 | C20—C21—C22 | 119.65 (17) |
C9—C8—H8 | 120.6 | C20—C21—H21 | 120.2 |
N1—C9—C8 | 123.78 (16) | C22—C21—H21 | 120.2 |
N1—C9—C14 | 115.93 (16) | C21—C22—C23 | 118.07 (18) |
C8—C9—C14 | 120.29 (17) | C21—C22—H22 | 121.0 |
O1—C10—C11 | 108.68 (13) | C23—C22—H22 | 121.0 |
O1—C10—H10A | 110.0 | N4—C23—C22 | 123.88 (18) |
C11—C10—H10A | 110.0 | N4—C23—H23 | 118.1 |
O1—C10—H10B | 110.0 | C22—C23—H23 | 118.1 |
C11—C10—H10B | 110.0 | F4—P1—F2 | 90.58 (7) |
H10A—C10—H10B | 108.3 | F4—P1—F5 | 90.40 (7) |
C10—C11—C12 | 111.93 (14) | F2—P1—F5 | 178.92 (7) |
C10—C11—H11A | 109.2 | F4—P1—F3 | 90.28 (7) |
C12—C11—H11A | 109.2 | F2—P1—F3 | 90.96 (7) |
C10—C11—H11B | 109.2 | F5—P1—F3 | 89.48 (6) |
C12—C11—H11B | 109.2 | F4—P1—F6 | 90.85 (6) |
H11A—C11—H11B | 107.9 | F2—P1—F6 | 89.68 (7) |
C13—C12—C11 | 112.43 (15) | F5—P1—F6 | 89.86 (6) |
C13—C12—H12A | 109.1 | F3—P1—F6 | 178.69 (6) |
C11—C12—H12A | 109.1 | F4—P1—F1 | 179.61 (7) |
C13—C12—H12B | 109.1 | F2—P1—F1 | 89.25 (7) |
C11—C12—H12B | 109.1 | F5—P1—F1 | 89.76 (6) |
H12A—C12—H12B | 107.8 | F3—P1—F1 | 90.07 (7) |
C12—C13—H13A | 109.5 | F6—P1—F1 | 88.80 (6) |
C12—C13—H13B | 109.5 | ||
C9—N1—C1—C6 | −0.7 (2) | C10—C11—C12—C13 | −176.49 (14) |
C9—N1—C1—C2 | 179.40 (15) | C17—N2—C14—C9 | −122.16 (17) |
C10—O1—C2—C3 | 0.0 (2) | C15—N2—C14—C9 | 60.2 (2) |
C10—O1—C2—C1 | 179.81 (13) | N1—C9—C14—N2 | −106.79 (17) |
N1—C1—C2—O1 | 0.2 (2) | C8—C9—C14—N2 | 73.1 (2) |
C6—C1—C2—O1 | −179.75 (13) | C17—N2—C15—C16 | 0.15 (19) |
N1—C1—C2—C3 | 180.00 (14) | C14—N2—C15—C16 | 178.14 (14) |
C6—C1—C2—C3 | 0.1 (2) | N2—C15—C16—N3 | −0.05 (19) |
O1—C2—C3—C4 | 179.65 (15) | C17—N3—C16—C15 | −0.07 (19) |
C1—C2—C3—C4 | −0.2 (2) | C18—N3—C16—C15 | 175.97 (15) |
C2—C3—C4—C5 | −0.5 (3) | C16—N3—C17—N2 | 0.16 (19) |
C3—C4—C5—C6 | 1.1 (3) | C18—N3—C17—N2 | −175.93 (14) |
C4—C5—C6—C7 | 179.41 (16) | C15—N2—C17—N3 | −0.19 (19) |
C4—C5—C6—C1 | −1.2 (2) | C14—N2—C17—N3 | −178.22 (13) |
N1—C1—C6—C7 | 0.1 (2) | C17—N3—C18—C19 | −137.01 (17) |
C2—C1—C6—C7 | −179.98 (14) | C16—N3—C18—C19 | 47.6 (2) |
N1—C1—C6—C5 | −179.33 (14) | C23—N4—C19—C20 | 0.2 (3) |
C2—C1—C6—C5 | 0.6 (2) | C23—N4—C19—C18 | 179.58 (19) |
C5—C6—C7—C8 | 179.60 (15) | N3—C18—C19—N4 | −117.59 (19) |
C1—C6—C7—C8 | 0.2 (2) | N3—C18—C19—C20 | 61.8 (2) |
C6—C7—C8—C9 | 0.1 (2) | N4—C19—C20—C21 | −1.4 (3) |
C1—N1—C9—C8 | 1.0 (2) | C18—C19—C20—C21 | 179.30 (18) |
C1—N1—C9—C14 | −179.09 (13) | C19—C20—C21—C22 | 1.4 (3) |
C7—C8—C9—N1 | −0.7 (3) | C20—C21—C22—C23 | −0.3 (3) |
C7—C8—C9—C14 | 179.37 (15) | C19—N4—C23—C22 | 1.0 (4) |
C2—O1—C10—C11 | 178.73 (13) | C21—C22—C23—N4 | −0.9 (4) |
O1—C10—C11—C12 | 177.10 (14) |
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4···N4i | 0.95 | 2.58 | 3.343 (2) | 138 |
C14—H14B···F1ii | 0.99 | 2.50 | 3.425 (2) | 156 |
C16—H16···F4i | 0.95 | 2.46 | 3.361 (2) | 159 |
C17—H17···F6ii | 0.95 | 2.32 | 3.223 (2) | 158 |
C23—H23···F4iii | 0.95 | 2.52 | 3.355 (2) | 147 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+2, −y+1, −z+1; (iii) x, y+1, z+1. |
Experimental details
Crystal data | |
Chemical formula | C23H25N4O+·PF6− |
Mr | 518.44 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 113 |
a, b, c (Å) | 9.975 (3), 11.056 (4), 12.382 (4) |
α, β, γ (°) | 99.010 (4), 103.527 (3), 112.734 (3) |
V (Å3) | 1177.1 (7) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.19 |
Crystal size (mm) | 0.24 × 0.20 × 0.18 |
Data collection | |
Diffractometer | Rigaku Saturn CCD area-detector diffractometer |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2005) |
Tmin, Tmax | 0.956, 0.967 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 12352, 5531, 2844 |
Rint | 0.037 |
(sin θ/λ)max (Å−1) | 0.658 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.038, 0.087, 1.01 |
No. of reflections | 5531 |
No. of parameters | 317 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.58, −0.24 |
Computer programs: CrystalClear (Rigaku, 2005), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), CrystalStructure (Rigaku, 2005).
D—H···A | D—H | H···A | D···A | D—H···A |
C4—H4···N4i | 0.95 | 2.58 | 3.343 (2) | 138 |
C14—H14B···F1ii | 0.99 | 2.50 | 3.425 (2) | 156 |
C16—H16···F4i | 0.95 | 2.46 | 3.361 (2) | 159 |
C17—H17···F6ii | 0.95 | 2.32 | 3.223 (2) | 158 |
C23—H23···F4iii | 0.95 | 2.52 | 3.355 (2) | 147 |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) −x+2, −y+1, −z+1; (iii) x, y+1, z+1. |
Acknowledgements
The authors thank the Scientific Researching Fund Projects of China West Normal University (grant No. 06B003)
References
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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.
since the isolation of the first stable derivative of N-heterocyclic carbenes (Arduengo et al., 1991), the chemistry of N-heterocyclic carbenes has been studied intensely, so numerous stable NHC ligands has been prepared. Imidazolium salts are considerable good precursor for the synthesis of N-heterocyclic carbenes. In addition, the study of ionic liquids of imidazolium salts (Heller et al., 2010) have been reported during these years.
We report herein the synthesis and crystal structure of the title compound.
The molecular structure of the title compound is shown in Fig. 1. Bond lengths (Allen et al., 1987) and angles in the cation are normal. The imidazolium ring make dihedral angles with the pyridine ring and the quinoline ring of 87.20 (6)° and 79.89 (5)°, respectively. In the crystal there are weak π···π interactions involving the pyridine ring with centroid-centroid distances, Cg2···Cg4i of 3.692 (9). [symmetry codes: (i) 1 - x, 2 - y, 1 - z] In addition, extensive C—H···F and C—H···N hydrogen bonds which contribute to the stability of molecular structure are observed (Table 1 and Fig. 2).