organic compounds
2-[(Quinolin-8-yloxy)methyl]-1H-benzimidazole monohydrate
aCollege of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, People's Republic of China
*Correspondence e-mail: yonghwen@163.com
In the title hydrate, C17H13N3O·H2O, the dihedral angle between the quinoline and benzimidazole ring systems is 6.22 (7)°. The water molecule is linked to the main molecule by N—H⋯O and O—H⋯N hydrogen bonds. Further O—H⋯N hydrogen bonds link the organic molecules into C(6) chains running parallel to the b axis.
CCDC reference: 776436
Related literature
For background to the properties and applications of benzimidazole and 8-hydroxyquinoline and their derivatives, see: Hanna & Moawad (2002); Patel & Patel (1999); Pierre et al. (2003); Liu et al. (2005); Wang et al. (2006); Wen et al. (2011). For hydrogen-bond motifs, see: Bernstein et al. (1995).
Experimental
Crystal data
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Data collection: SMART (Bruker, 2001); cell SAINT (Bruker, 2001); data reduction: SAINT; 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: SHELXL97.
Supporting information
CCDC reference: 776436
10.1107/S1600536813031322/bx2452sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536813031322/bx2452Isup2.hkl
2-((Quinolin-8-yloxy)methyl)benzimidazole was prepared according to the literature method (Wen et al., 2011). Colourless single crystals of the title compound suitable for X-ray diffraction study were obtained by slow evaporation of an ethanol solution over a period of 15 d.
H atoms were positioned geometrically, with C—H = 0.93–0.98 Å, and constrained to ride on their parent atoms, with Uiso(H) = 1.2 or 1.5 times Ueq of the carrier atoms.
Data collection: SMART (Bruker, 2001); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); 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: SHELXL97 (Sheldrick, 2008).C17H13N3O·H2O | F(000) = 616 |
Mr = 293.32 | Dx = 1.389 Mg m−3 |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 3957 reflections |
a = 6.1679 (12) Å | θ = 3.0–27.9° |
b = 11.094 (2) Å | µ = 0.09 mm−1 |
c = 20.502 (4) Å | T = 293 K |
V = 1402.9 (5) Å3 | Plate, colourless |
Z = 4 | 0.12 × 0.10 × 0.06 mm |
Bruker SMART CCD area-detector diffractometer | 1947 independent reflections |
Radiation source: fine-focus sealed tube | 1808 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.048 |
phi and ω scans | θmax = 27.9°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −8→7 |
Tmin = 0.989, Tmax = 0.994 | k = −14→13 |
10881 measured reflections | l = −20→26 |
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)] = 0.039 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.087 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0385P)2 + 0.4303P] where P = (Fo2 + 2Fc2)/3 |
1947 reflections | (Δ/σ)max = 0.013 |
207 parameters | Δρmax = 0.20 e Å−3 |
18 restraints | Δρmin = −0.22 e Å−3 |
C17H13N3O·H2O | V = 1402.9 (5) Å3 |
Mr = 293.32 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 6.1679 (12) Å | µ = 0.09 mm−1 |
b = 11.094 (2) Å | T = 293 K |
c = 20.502 (4) Å | 0.12 × 0.10 × 0.06 mm |
Bruker SMART CCD area-detector diffractometer | 1947 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1808 reflections with I > 2σ(I) |
Tmin = 0.989, Tmax = 0.994 | Rint = 0.048 |
10881 measured reflections |
R[F2 > 2σ(F2)] = 0.039 | 18 restraints |
wR(F2) = 0.087 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.06 | Δρmax = 0.20 e Å−3 |
1947 reflections | Δρmin = −0.22 e Å−3 |
207 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 | 0.70538 (9) | 0.86768 (5) | 0.14109 (3) | 0.01892 (14) | |
N1 | 0.82709 (12) | 1.03042 (6) | 0.05135 (3) | 0.01977 (14) | |
N2 | 0.34077 (11) | 0.92882 (6) | 0.20550 (3) | 0.01772 (16) | |
H2A | 0.3746 | 0.9764 | 0.1740 | 0.021* | |
N3 | 0.36377 (12) | 0.77363 (6) | 0.27537 (3) | 0.01932 (14) | |
C1 | 0.88756 (16) | 1.10840 (7) | 0.00577 (4) | 0.0235 (2) | |
H1B | 0.7980 | 1.1743 | −0.0021 | 0.028* | |
C2 | 1.07849 (16) | 1.09794 (8) | −0.03150 (4) | 0.0242 (2) | |
H2B | 1.1122 | 1.1549 | −0.0632 | 0.029* | |
C3 | 1.21293 (15) | 1.00257 (8) | −0.02022 (4) | 0.0235 (2) | |
H3B | 1.3415 | 0.9949 | −0.0436 | 0.028* | |
C4 | 1.15598 (14) | 0.91521 (7) | 0.02721 (4) | 0.01900 (19) | |
C5 | 1.28526 (14) | 0.81205 (8) | 0.03975 (4) | 0.0201 (2) | |
H5A | 1.4166 | 0.8017 | 0.0182 | 0.024* | |
C6 | 1.21598 (14) | 0.72833 (7) | 0.08357 (4) | 0.0197 (2) | |
H6A | 1.2990 | 0.6596 | 0.0907 | 0.024* | |
C7 | 1.01976 (13) | 0.74376 (7) | 0.11856 (4) | 0.01837 (19) | |
H7A | 0.9755 | 0.6855 | 0.1484 | 0.022* | |
C8 | 0.89491 (13) | 0.84444 (7) | 0.10856 (4) | 0.01745 (19) | |
C9 | 0.95816 (14) | 0.93301 (7) | 0.06158 (4) | 0.01845 (15) | |
C10 | 0.65019 (14) | 0.78507 (7) | 0.19152 (4) | 0.01846 (19) | |
H10A | 0.7684 | 0.7789 | 0.2225 | 0.022* | |
H10B | 0.6240 | 0.7058 | 0.1732 | 0.022* | |
C11 | 0.45163 (14) | 0.82967 (7) | 0.22478 (4) | 0.01850 (15) | |
C12 | 0.16288 (13) | 0.93884 (7) | 0.24609 (4) | 0.01765 (19) | |
C13 | −0.01106 (15) | 1.01856 (7) | 0.24679 (4) | 0.0214 (2) | |
H13A | −0.0209 | 1.0820 | 0.2173 | 0.026* | |
C14 | −0.16961 (15) | 0.99854 (7) | 0.29382 (4) | 0.0239 (2) | |
H14A | −0.2892 | 1.0495 | 0.2956 | 0.029* | |
C15 | −0.15352 (15) | 0.90322 (8) | 0.33867 (4) | 0.0249 (2) | |
H15A | −0.2616 | 0.8931 | 0.3698 | 0.030* | |
C16 | 0.02011 (15) | 0.82397 (8) | 0.33743 (4) | 0.0223 (2) | |
H16A | 0.0301 | 0.7611 | 0.3673 | 0.027* | |
C17 | 0.17982 (14) | 0.84134 (7) | 0.28990 (4) | 0.01820 (19) | |
O2 | 0.45798 (10) | 1.11879 (5) | 0.12375 (3) | 0.02338 (15) | |
H2WA | 0.5052 (13) | 1.1686 (4) | 0.1525 (2) | 0.053 (3)* | |
H2WB | 0.5604 (8) | 1.0836 (5) | 0.1021 (3) | 0.047 (3)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0167 (3) | 0.0218 (3) | 0.0183 (2) | 0.0025 (2) | 0.0034 (2) | 0.0034 (2) |
N1 | 0.0224 (3) | 0.0198 (2) | 0.0171 (2) | 0.0001 (2) | 0.0005 (2) | −0.0011 (2) |
N2 | 0.0172 (3) | 0.0179 (3) | 0.0180 (3) | −0.0017 (3) | 0.0009 (3) | 0.0006 (3) |
N3 | 0.0177 (3) | 0.0228 (2) | 0.0175 (2) | −0.0019 (2) | 0.0002 (2) | 0.0011 (2) |
C1 | 0.0309 (5) | 0.0189 (3) | 0.0207 (4) | 0.0007 (4) | −0.0001 (4) | 0.0000 (3) |
C2 | 0.0298 (5) | 0.0236 (4) | 0.0192 (4) | −0.0066 (4) | 0.0023 (3) | 0.0007 (3) |
C3 | 0.0238 (4) | 0.0275 (4) | 0.0191 (4) | −0.0059 (4) | 0.0020 (4) | −0.0018 (3) |
C4 | 0.0182 (4) | 0.0230 (4) | 0.0159 (3) | −0.0042 (4) | −0.0020 (3) | −0.0037 (3) |
C5 | 0.0140 (4) | 0.0289 (4) | 0.0175 (3) | −0.0006 (4) | 0.0003 (3) | −0.0048 (3) |
C6 | 0.0179 (4) | 0.0228 (4) | 0.0184 (4) | 0.0035 (4) | −0.0024 (3) | −0.0025 (3) |
C7 | 0.0173 (4) | 0.0208 (3) | 0.0169 (3) | −0.0005 (3) | −0.0018 (3) | −0.0001 (3) |
C8 | 0.0159 (4) | 0.0210 (3) | 0.0154 (3) | −0.0013 (3) | −0.0006 (3) | −0.0028 (3) |
C9 | 0.0202 (3) | 0.0185 (2) | 0.0167 (3) | −0.0009 (2) | −0.0010 (3) | −0.0021 (2) |
C10 | 0.0180 (4) | 0.0189 (3) | 0.0184 (3) | −0.0028 (4) | 0.0023 (3) | 0.0019 (3) |
C11 | 0.0174 (3) | 0.0211 (3) | 0.0170 (3) | −0.0024 (3) | −0.0014 (2) | 0.0000 (2) |
C12 | 0.0164 (4) | 0.0198 (3) | 0.0168 (3) | −0.0039 (3) | 0.0003 (3) | −0.0042 (3) |
C13 | 0.0221 (4) | 0.0188 (3) | 0.0234 (4) | −0.0007 (4) | −0.0013 (3) | −0.0046 (3) |
C14 | 0.0202 (4) | 0.0244 (4) | 0.0272 (4) | −0.0010 (4) | −0.0003 (4) | −0.0096 (3) |
C15 | 0.0204 (4) | 0.0338 (4) | 0.0206 (4) | −0.0048 (4) | 0.0046 (3) | −0.0091 (3) |
C16 | 0.0209 (4) | 0.0269 (4) | 0.0190 (4) | −0.0046 (4) | 0.0007 (3) | −0.0009 (3) |
C17 | 0.0155 (4) | 0.0215 (4) | 0.0176 (3) | −0.0036 (3) | −0.0012 (3) | −0.0027 (3) |
O2 | 0.0240 (3) | 0.0216 (3) | 0.0246 (3) | −0.0012 (3) | 0.0020 (3) | −0.0029 (2) |
O1—C8 | 1.3703 (10) | C6—H6A | 0.9300 |
O1—C10 | 1.4230 (9) | C7—C8 | 1.3721 (11) |
N1—C1 | 1.3268 (11) | C7—H7A | 0.9300 |
N1—C9 | 1.3658 (11) | C8—C9 | 1.4303 (11) |
N2—C11 | 1.3541 (11) | C10—C11 | 1.4864 (12) |
N2—C12 | 1.3816 (11) | C10—H10A | 0.9700 |
N2—H2A | 0.8600 | C10—H10B | 0.9700 |
N3—C11 | 1.3253 (10) | C12—C13 | 1.3905 (12) |
N3—C17 | 1.3930 (11) | C12—C17 | 1.4099 (11) |
C1—C2 | 1.4087 (13) | C13—C14 | 1.3911 (13) |
C1—H1B | 0.9300 | C13—H13A | 0.9300 |
C2—C3 | 1.3640 (13) | C14—C15 | 1.4049 (12) |
C2—H2B | 0.9300 | C14—H14A | 0.9300 |
C3—C4 | 1.4172 (11) | C15—C16 | 1.3858 (13) |
C3—H3B | 0.9300 | C15—H15A | 0.9300 |
C4—C5 | 1.4183 (12) | C16—C17 | 1.3988 (12) |
C4—C9 | 1.4227 (12) | C16—H16A | 0.9300 |
C5—C6 | 1.3609 (11) | O2—H2WA | 0.860 (5) |
C5—H5A | 0.9300 | O2—H2WB | 0.866 (5) |
C6—C7 | 1.4173 (12) | ||
C8—O1—C10 | 115.89 (6) | N1—C9—C8 | 119.05 (7) |
C1—N1—C9 | 117.23 (8) | C4—C9—C8 | 118.17 (7) |
C11—N2—C12 | 106.89 (6) | O1—C10—C11 | 108.42 (6) |
C11—N2—H2A | 126.6 | O1—C10—H10A | 110.0 |
C12—N2—H2A | 126.6 | C11—C10—H10A | 110.0 |
C11—N3—C17 | 104.33 (7) | O1—C10—H10B | 110.0 |
N1—C1—C2 | 124.28 (8) | C11—C10—H10B | 110.0 |
N1—C1—H1B | 117.9 | H10A—C10—H10B | 108.4 |
C2—C1—H1B | 117.9 | N3—C11—N2 | 113.77 (7) |
C3—C2—C1 | 118.69 (8) | N3—C11—C10 | 122.66 (7) |
C3—C2—H2B | 120.7 | N2—C11—C10 | 123.54 (7) |
C1—C2—H2B | 120.7 | N2—C12—C13 | 132.08 (7) |
C2—C3—C4 | 119.75 (8) | N2—C12—C17 | 105.26 (7) |
C2—C3—H3B | 120.1 | C13—C12—C17 | 122.58 (8) |
C4—C3—H3B | 120.1 | C12—C13—C14 | 116.62 (8) |
C3—C4—C5 | 122.47 (8) | C12—C13—H13A | 121.7 |
C3—C4—C9 | 117.22 (7) | C14—C13—H13A | 121.7 |
C5—C4—C9 | 120.29 (7) | C13—C14—C15 | 121.61 (8) |
C6—C5—C4 | 119.59 (8) | C13—C14—H14A | 119.2 |
C6—C5—H5A | 120.2 | C15—C14—H14A | 119.2 |
C4—C5—H5A | 120.2 | C16—C15—C14 | 121.34 (8) |
C5—C6—C7 | 121.32 (8) | C16—C15—H15A | 119.3 |
C5—C6—H6A | 119.3 | C14—C15—H15A | 119.3 |
C7—C6—H6A | 119.3 | C15—C16—C17 | 118.01 (8) |
C8—C7—C6 | 120.13 (7) | C15—C16—H16A | 121.0 |
C8—C7—H7A | 119.9 | C17—C16—H16A | 121.0 |
C6—C7—H7A | 119.9 | N3—C17—C16 | 130.41 (7) |
O1—C8—C7 | 124.00 (7) | N3—C17—C12 | 109.74 (7) |
O1—C8—C9 | 115.55 (7) | C16—C17—C12 | 119.82 (8) |
C7—C8—C9 | 120.45 (7) | H2WA—O2—H2WB | 113.3 (6) |
N1—C9—C4 | 122.78 (7) | ||
C9—N1—C1—C2 | −1.10 (12) | C8—O1—C10—C11 | 175.34 (6) |
N1—C1—C2—C3 | −0.66 (13) | C17—N3—C11—N2 | 0.46 (9) |
C1—C2—C3—C4 | 1.48 (12) | C17—N3—C11—C10 | −177.96 (7) |
C2—C3—C4—C5 | 177.95 (8) | C12—N2—C11—N3 | −0.79 (9) |
C2—C3—C4—C9 | −0.58 (12) | C12—N2—C11—C10 | 177.61 (7) |
C3—C4—C5—C6 | −176.63 (8) | O1—C10—C11—N3 | −177.95 (7) |
C9—C4—C5—C6 | 1.85 (12) | O1—C10—C11—N2 | 3.80 (10) |
C4—C5—C6—C7 | −1.94 (12) | C11—N2—C12—C13 | −176.09 (9) |
C5—C6—C7—C8 | 0.15 (12) | C11—N2—C12—C17 | 0.74 (8) |
C10—O1—C8—C7 | 5.26 (11) | N2—C12—C13—C14 | 177.02 (8) |
C10—O1—C8—C9 | −175.18 (7) | C17—C12—C13—C14 | 0.64 (12) |
C6—C7—C8—O1 | −178.74 (7) | C12—C13—C14—C15 | 0.56 (12) |
C6—C7—C8—C9 | 1.72 (12) | C13—C14—C15—C16 | −0.82 (13) |
C1—N1—C9—C4 | 2.06 (11) | C14—C15—C16—C17 | −0.15 (13) |
C1—N1—C9—C8 | −177.72 (7) | C11—N3—C17—C16 | 178.14 (9) |
C3—C4—C9—N1 | −1.25 (12) | C11—N3—C17—C12 | 0.05 (9) |
C5—C4—C9—N1 | −179.81 (7) | C15—C16—C17—N3 | −176.62 (8) |
C3—C4—C9—C8 | 178.52 (7) | C15—C16—C17—C12 | 1.31 (12) |
C5—C4—C9—C8 | −0.03 (11) | N2—C12—C17—N3 | −0.50 (9) |
O1—C8—C9—N1 | −1.54 (11) | C13—C12—C17—N3 | 176.71 (7) |
C7—C8—C9—N1 | 178.04 (7) | N2—C12—C17—C16 | −178.82 (7) |
O1—C8—C9—C4 | 178.67 (7) | C13—C12—C17—C16 | −1.61 (12) |
C7—C8—C9—C4 | −1.75 (11) |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2WB···N1 | 0.87 (1) | 2.03 (1) | 2.8892 (10) | 170 (1) |
N2—H2A···O2 | 0.86 | 1.95 | 2.7880 (9) | 163 |
O2—H2WA···N3i | 0.86 (1) | 2.05 (1) | 2.9046 (9) | 174 (1) |
Symmetry code: (i) −x+1, y+1/2, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2WB···N1 | 0.866 (5) | 2.033 (5) | 2.8892 (10) | 169.7 (5) |
N2—H2A···O2 | 0.86 | 1.95 | 2.7880 (9) | 163.0 |
O2—H2WA···N3i | 0.860 (5) | 2.048 (5) | 2.9046 (9) | 174.3 (6) |
Symmetry code: (i) −x+1, y+1/2, −z+1/2. |
Acknowledgements
This work was supported financially by the Science and Technology Project of Shandong Province, China (No. 2012 G0020221).
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Benzimidazole and 8-hydroxyquinoline and their derivatives find wide application in coordination chemistry (Hanna et al., 2002), pharmaceutical chemistry (Patel et al., 1999; Pierre et al., 2003), and materials chemistry (Liu et al., 2005; Wang et al., 2006). 2-((Quinolin-8-yloxy)methyl)benzimidazole is a tridentate ligand with N2O donor set, and its copper complex exhibited a predominantly ferromagnetic interaction, while its cadmium complex has good fluorescence property (Wen et al., 2011). Here, we report the crystal structure of the title compound.
The title compound consists of a 2-((quinolin-8-yloxy)methyl)benzimidazole molecule and a crystal water molecule (Fig. 1). The whole molecule is essentially planar, with a dihedral angle of 6.22 (7)° between quinoline and benzimidazole ring. The water molecule as donor is hydrogen bonded to N1 atom in quinoline ring and also as acceptor is hydrogen bonded to H2A atom in benzimidazole ring. These two hydrogen bonds (Table 2) viz. O2—H2WB···N1 and N2—H2A···O2 are helpful to the planar structure of the whole molecule. Meanwhile, the water molecule as donor is hydrogen bonded to N3 atom in benzimidazole ring of the neighbouring molecule to form intermolecular hydrogen bond O2—H2WA···N3 [symmetry-code: -x + 1, y + 1/2, -z + 1/2]. So, the crystal structure is stabilized by two intra and and one intermolecular N—H···O ; O—H···N and O—H···N hydrogen bonds respectively, which link the molecules into C(6) chains running parallel to the b axis (Bernstein et al., 1995) (Fig. 2), Table 2.