organic compounds
1,5-Bis(4-chlorophenyl)-3-(2-chloroquinolin-3-yl)pentane-1,5-dione: sheets of R44(26) rings built from C—H⋯N and C—H⋯O hydrogen bonds
aGrupo de Investigación de Compuestos Heterocíclicos, Departamento de Química, Universidad de Valle, AA 25360 Cali, Colombia, bDepartamento de Ciencias Básicas, Universidad Nacional de Colombia Sede Palmira, Crra. 32, Chapinero vía Candelaria, AA 237 Palmira-Valle, Colombia, cDepartamento de Química Inorgánica y Orgánica, Universidad de Jaén, 23071 Jaén, Spain, dDepartment of Chemistry, University of Aberdeen, Meston Walk, Old Aberdeen AB24 3UE, Scotland, and eSchool of Chemistry, University of St Andrews, Fife KY16 9ST, Scotland
*Correspondence e-mail: cg@st-andrews.ac.uk
Molecules of the title compound, C26H18Cl3NO2, are linked into sheets of R44(26) rings by a combination of C—H⋯N and C—H⋯O hydrogen bonds.
Comment
With the aim of developing new classes of fused heterocyclic systems, we have prepared a range of novel (Fig. 1), obtained in low yield as a by-product in the preparation of the pyrazolylquinoline (II) via the corresponding chalcone (III), formed by the reaction between 2-chloroquinoline-3-carbaldehyde and 4-chlorophenyl methyl ketone.
appropriately functionalized for use as intermediates. The reactions used to prepare such involve methyl aryl and aryl or heteroaryl We report here the structure of the title compound, (I)The bond distances within the quinoline portion of the molecule (Table 1) show evidence for significant bond fixation; the N31—C32 bond is thus significantly shorter than N31—C38A, while the C33—C34, C35—C36 and C37—C38 bonds are all significantly shorter than the other peripheral C—C bonds. The two independent 4-chlorobenzoylmethylene components adopt different conformations relative to the quinoline component so that the molecules have no internal symmetry and hence are chiral; however, the centrosymmetric Pbca accommodates equal numbers of the two enantiomorphic forms.
The molecules are linked into sheets by two hydrogen bonds, one each of the C—H⋯N and C—H⋯O types (Table 2), and the sheet formation is readily analysed in terms of two one-dimensional substructures. Quinolinyl atom C34 in the molecule at (x, y, z) acts as a hydrogen-bond donor to atom N31 in the molecule at (− + x, y, − z), so forming a
C(5) (Bernstein et al., 1995) chain running parallel to the [100] direction and generated by the a-glide plane at z = (Fig. 2). In addition, quinolinyl atom C37 in the molecule at (x, y, z) acts as a hydrogen-bond donor to atom O17 in the molecule at (1 − x, − + y, − z), so forming a C(11) chain running parallel to the [010] direction and generated by the 21 screw axis along (, y, ) (Fig. 3).The combination of the [100] and [010] chains generates a (001) sheet in the form of a (4,4)-net (Batten & Robson, 1998) built from a single type of R44(26) ring, lying in the domain −0.02 < z < 0.52, and generated by the glide plane and screw axes at z = (Fig. 4). A second sheet, related to the first by inversion, lies in the domain 0.48 < z < 1.02, and is generated by the glide plane and screw axes at z = .
The only direction-specific interaction between adjacent sheets is a rather long C—H⋯O contact with aryl atom C15 as the donor (Table 2) but whose H⋯O distance is close to the van der Waals limit; this interaction is therefore probably of little or no structural significance.
The molecular constitution of (I) has some resemblance to that of the thienyl compound (IV), but the supramolecular arrangement is entirely different in (IV), where the molecules are linked into cyclic centrosymmetric dimers by paired C—H⋯π(thienyl) hydrogen bonds (Trilleras et al., 2005).
Experimental
Hydrazine hydrate (0.70 g of a 55% aqueous solution, 12 mmol) was added dropwise to a solution of (E)-1-(4-chlorophenyl)-3-(2-chloro-quinolin-3-yl)prop-2-en-1-one, (III) (2.3 g, 7 mmol), in methanol (40 ml), and the resulting mixture was then stirred at room temperature for 15 min. The solid product was collected by filtration and washed with cold methanol to give 2-chloro-3-[3-(4-chlorophenyl)-1H-pyrazol-5-yl]quinoline, (II) (2.2 g, 88% yield). Evaporation of the filtrate yielded crystals of (I) suitable for single-crystal X-ray diffraction (yield 10%, m.p. 505–506 K). MS (EI 70 eV), m/z (%) 481 (5, M+), 328 (64, [M − ClC6H4COCH2]+), 292 (62), 139 (100).
Crystal data
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Refinement
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The Pbca was uniquely assigned from the All H atoms were located from difference maps and then treated as riding atoms, with C—H distances of 0.95 (aromatic), 0.99 (CH2) and 1.00 Å (aliphatic CH), and with Uiso(H) values of 1.2Ueq(C).
Data collection: COLLECT (Hooft, 1999); cell DENZO (Otwinowski & Minor, 1997) and COLLECT; data reduction: DENZO and COLLECT; program(s) used to solve structure: OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: OSCAIL and SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 and PRPKAPPA (Ferguson, 1999).
Supporting information
10.1107/S0108270105039193/sk1891sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S0108270105039193/sk1891Isup2.hkl
Hydrazine hydrate (0.70 g of a 55% aqueous solution, 12 mmol) was added dropwise to a solution of (E)-1-(4-chlorophenyl)-3-(2-chloro-3-quinolinyl)-2-propen-1-one, (III) (2.3 g, 7 mmol), in methanol (40 ml), and the resulting mixture was then stirred at room temperature for 15 min. The solid product was collected by filtration and washed with cold methanol to give 2-chloro-3-[3-(4-chlorophenyl)-1H-pyrazol-5-yl]quinoline, (II) (2.2 g, 88% yield). Evaporation of the filtrate yielded crystals of (I) suitable for single-crystal X-ray diffraction (yield 10%, m.p. 505–506 K). MS (EI 70 eV), m/z (%) 481 (5, M+), 328 (64, [M-ClC6H4COCH2]+), 292?(62), 139?(100).
The
Pbca was uniquely assigned from the All H atoms were located from difference maps, and then treated as riding atoms with C—H distances of 0.95 Å (aromatic), 0.99 Å (CH2) or 1.00 Å (aliphatic CH), and with Uiso(H) = 1.2Ueq(C).With the aim of developing new classes of fused heterocyclic systems, we have prepared a range of novel
appropriately functionalized for use as intermediates. The reactions used to prepare such involve methyl aryl and aryl or heteroaryl We report here the structure of the title compound, (I), obtained in low yield as a by-product in the preparation of the pyrazolylquinoline (II) via the corresponding chalcone, (III), formed by the reaction between 2-chloro-3-quinolinecarbaldehyde and methyl 4-chlorophenyl ketone.The bond distances within the quinoline portion of the molecule (Table 1) show evidence for significant bond fixation; thus the N31—C32 bond is significantly shorter than N31—C38A, while the C33—C34, C35—C36 and C37—C38 bonds are all significantly shorter than the other peripheral C—C bonds. The two independent 4-chlorobenzoylmethylene components adopt different conformations relative to the quinoline component so that the molecules have no internal symmetry and hence are chiral; however, the centrosymmetric
Pbca accommodates equal numbers of the two enantiomorphic forms.The molecules are linked into sheets by two hydrogen bonds, one each of C—H···N and C—H···O types (Table 2), and the sheet formation is readily analysed in terms of two one-dimensional substructures. Quinolinyl atom C34 in the molecule at (x, y, z) acts as a hydrogen-bond donor to atom N31 in the molecule at (-1/2 + x, y, 1/2 - z), so forming a C(5) (Bernstein et al., 1995) chain running parallel to the [100] direction and generated by the a-glide plane at z = 1/4 (Fig. 2). In addition, quinolinyl atom C37 in the molecule at (x, y, z) acts as a hydrogen-bond donor to atom O17 in the molecule at (1 - x, -1/2 + y, 1/2 - z), so forming a C(11) chain running parallel to the [010] direction and generated by the 21 screw axis along (1/2, y, 1/4) (Fig. 3).
The combination of the [100] and [010] chains generates a (001) sheet in the form of a (4,4)-net (Batten & Robson, 1998) built from a single type of R44(26) ring, lying in the domain -0.02 < z < 0.52, and generated by the glide plane and screw axes at z = 1/4 (Fig. 4). A second sheet, related to the first by inversion, lies in the domain 0.48 < z < 1.02 and is generated by the glide plane and screw axes at z = 3/4.
The only direction-specific interaction between adjacent sheets is a rather long C—H···O contact with the aryl atom C15 as the donor (Table 2) but whose H···O distance is close to the van der Waals limit; this interaction is therefore probably of little or no structural significance.
The molecular constitution of compound (I) has some resemblance to that of the thienyl compound (IV), but the supramolecular arrangement is entirely different in (IV), where the molecules are linked into cyclic centrosymmetric dimers by paired C—H···π(thienyl) hydrogen bonds (Trilleras et al., 2005).
Data collection: COLLECT (Hooft, 1999); cell
DENZO (Otwinowski & Minor, 1997) and COLLECT; data reduction: DENZO and COLLECT; program(s) used to solve structure: OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: OSCAIL and SHELXL97 (Sheldrick, 1997); molecular graphics: PLATON (Spek, 2003); software used to prepare material for publication: SHELXL97 and PRPKAPPA (Ferguson, 1999).C26H18Cl3NO2 | F(000) = 1984 |
Mr = 482.76 | Dx = 1.436 Mg m−3 |
Orthorhombic, Pbca | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ac 2ab | Cell parameters from 5112 reflections |
a = 11.2405 (2) Å | θ = 3.4–27.5° |
b = 18.8738 (3) Å | µ = 0.44 mm−1 |
c = 21.0529 (3) Å | T = 120 K |
V = 4466.39 (12) Å3 | Block, colourless |
Z = 8 | 0.20 × 0.20 × 0.15 mm |
Nonius KappaCCD diffractometer | 5112 independent reflections |
Radiation source: Bruker-Nonius FR91 rotating anode | 3921 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.048 |
Detector resolution: 9.091 pixels mm-1 | θmax = 27.5°, θmin = 3.4° |
φ and ω scans | h = −14→14 |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | k = −21→24 |
Tmin = 0.922, Tmax = 0.938 | l = −27→27 |
52455 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)] = 0.042 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0554P)2 + 2.4672P] where P = (Fo2 + 2Fc2)/3 |
5112 reflections | (Δ/σ)max = 0.001 |
289 parameters | Δρmax = 0.41 e Å−3 |
0 restraints | Δρmin = −0.58 e Å−3 |
C26H18Cl3NO2 | V = 4466.39 (12) Å3 |
Mr = 482.76 | Z = 8 |
Orthorhombic, Pbca | Mo Kα radiation |
a = 11.2405 (2) Å | µ = 0.44 mm−1 |
b = 18.8738 (3) Å | T = 120 K |
c = 21.0529 (3) Å | 0.20 × 0.20 × 0.15 mm |
Nonius KappaCCD diffractometer | 5112 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 3921 reflections with I > 2σ(I) |
Tmin = 0.922, Tmax = 0.938 | Rint = 0.048 |
52455 measured reflections |
R[F2 > 2σ(F2)] = 0.042 | 0 restraints |
wR(F2) = 0.116 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.41 e Å−3 |
5112 reflections | Δρmin = −0.58 e Å−3 |
289 parameters |
x | y | z | Uiso*/Ueq | ||
Cl1 | −0.24463 (5) | 0.60892 (4) | 0.52239 (3) | 0.05197 (19) | |
Cl2 | 0.36147 (7) | 0.93210 (3) | 0.02585 (3) | 0.05640 (19) | |
Cl3 | 0.63263 (4) | 0.59715 (3) | 0.37707 (2) | 0.03324 (13) | |
O17 | 0.27494 (12) | 0.71370 (7) | 0.40277 (7) | 0.0345 (3) | |
O27 | 0.55516 (11) | 0.70553 (8) | 0.24637 (7) | 0.0389 (3) | |
N31 | 0.64154 (13) | 0.49686 (8) | 0.29422 (7) | 0.0261 (3) | |
C1 | 0.38694 (15) | 0.62862 (9) | 0.31345 (9) | 0.0248 (4) | |
C11 | 0.10666 (16) | 0.64331 (10) | 0.42440 (8) | 0.0254 (4) | |
C12 | 0.04763 (17) | 0.57904 (11) | 0.41819 (10) | 0.0333 (4) | |
C13 | −0.06099 (18) | 0.56808 (13) | 0.44833 (10) | 0.0398 (5) | |
C14 | −0.10900 (17) | 0.62233 (12) | 0.48422 (9) | 0.0349 (5) | |
C15 | −0.05275 (17) | 0.68684 (11) | 0.49112 (9) | 0.0328 (4) | |
C16 | 0.05558 (17) | 0.69703 (10) | 0.46129 (8) | 0.0281 (4) | |
C17 | 0.22362 (16) | 0.65811 (9) | 0.39326 (8) | 0.0250 (4) | |
C18 | 0.27700 (16) | 0.60194 (10) | 0.35018 (9) | 0.0262 (4) | |
C21 | 0.42731 (16) | 0.76794 (10) | 0.17734 (9) | 0.0273 (4) | |
C22 | 0.31889 (17) | 0.77041 (10) | 0.14542 (9) | 0.0308 (4) | |
C23 | 0.29949 (19) | 0.81983 (11) | 0.09786 (10) | 0.0354 (4) | |
C24 | 0.3877 (2) | 0.86827 (11) | 0.08384 (10) | 0.0362 (5) | |
C25 | 0.49545 (19) | 0.86799 (11) | 0.11552 (10) | 0.0367 (5) | |
C26 | 0.51556 (17) | 0.81716 (10) | 0.16177 (9) | 0.0317 (4) | |
C27 | 0.45339 (16) | 0.71555 (10) | 0.22867 (9) | 0.0281 (4) | |
C28 | 0.34994 (15) | 0.67711 (10) | 0.25885 (9) | 0.0257 (4) | |
C32 | 0.57374 (15) | 0.54819 (10) | 0.31410 (8) | 0.0245 (4) | |
C33 | 0.45995 (15) | 0.56650 (9) | 0.28962 (8) | 0.0237 (4) | |
C34 | 0.41842 (16) | 0.52346 (10) | 0.24216 (9) | 0.0273 (4) | |
C34A | 0.48628 (15) | 0.46580 (10) | 0.21923 (8) | 0.0256 (4) | |
C35 | 0.44493 (17) | 0.41947 (11) | 0.17103 (9) | 0.0324 (4) | |
C36 | 0.5168 (2) | 0.36569 (11) | 0.15028 (9) | 0.0363 (5) | |
C37 | 0.63176 (18) | 0.35695 (11) | 0.17500 (10) | 0.0340 (4) | |
C38 | 0.67301 (17) | 0.40008 (10) | 0.22242 (9) | 0.0309 (4) | |
C38A | 0.59988 (16) | 0.45523 (9) | 0.24592 (9) | 0.0249 (4) | |
H1 | 0.4374 | 0.6567 | 0.3434 | 0.030* | |
H12 | 0.0816 | 0.5423 | 0.3932 | 0.040* | |
H13 | −0.1014 | 0.5241 | 0.4443 | 0.048* | |
H15 | −0.0877 | 0.7235 | 0.5158 | 0.039* | |
H16 | 0.0958 | 0.7410 | 0.4659 | 0.034* | |
H18A | 0.2159 | 0.5862 | 0.3194 | 0.031* | |
H18B | 0.3000 | 0.5604 | 0.3762 | 0.031* | |
H22 | 0.2577 | 0.7379 | 0.1563 | 0.037* | |
H23 | 0.2264 | 0.8204 | 0.0752 | 0.042* | |
H25 | 0.5548 | 0.9021 | 0.1057 | 0.044* | |
H26 | 0.5900 | 0.8157 | 0.1831 | 0.038* | |
H28A | 0.3092 | 0.6485 | 0.2260 | 0.031* | |
H28B | 0.2923 | 0.7125 | 0.2750 | 0.031* | |
H34 | 0.3424 | 0.5326 | 0.2242 | 0.033* | |
H35 | 0.3679 | 0.4257 | 0.1533 | 0.039* | |
H36 | 0.4885 | 0.3339 | 0.1187 | 0.044* | |
H37 | 0.6816 | 0.3206 | 0.1586 | 0.041* | |
H38 | 0.7503 | 0.3930 | 0.2395 | 0.037* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cl1 | 0.0292 (3) | 0.0918 (5) | 0.0349 (3) | −0.0112 (3) | 0.0084 (2) | −0.0205 (3) |
Cl2 | 0.0897 (5) | 0.0385 (3) | 0.0410 (3) | −0.0038 (3) | −0.0036 (3) | 0.0106 (2) |
Cl3 | 0.0315 (2) | 0.0374 (3) | 0.0308 (2) | −0.00001 (19) | −0.00860 (19) | −0.0048 (2) |
O17 | 0.0409 (8) | 0.0270 (7) | 0.0357 (7) | −0.0066 (6) | 0.0084 (6) | −0.0057 (6) |
O27 | 0.0219 (7) | 0.0454 (9) | 0.0493 (9) | 0.0002 (6) | 0.0007 (6) | 0.0106 (7) |
N31 | 0.0236 (7) | 0.0283 (8) | 0.0263 (8) | 0.0010 (6) | 0.0026 (6) | 0.0037 (6) |
C1 | 0.0222 (8) | 0.0248 (9) | 0.0275 (9) | −0.0001 (7) | 0.0012 (7) | −0.0046 (7) |
C11 | 0.0263 (9) | 0.0294 (10) | 0.0205 (8) | 0.0037 (7) | 0.0003 (7) | 0.0000 (7) |
C12 | 0.0313 (10) | 0.0364 (11) | 0.0321 (10) | −0.0030 (8) | 0.0044 (8) | −0.0086 (8) |
C13 | 0.0332 (11) | 0.0493 (13) | 0.0369 (11) | −0.0126 (9) | 0.0062 (9) | −0.0120 (10) |
C14 | 0.0246 (9) | 0.0575 (14) | 0.0227 (9) | −0.0008 (9) | 0.0004 (7) | −0.0055 (9) |
C15 | 0.0332 (10) | 0.0444 (12) | 0.0207 (9) | 0.0126 (9) | −0.0002 (7) | −0.0016 (8) |
C16 | 0.0338 (10) | 0.0296 (10) | 0.0209 (9) | 0.0064 (8) | −0.0004 (7) | 0.0019 (7) |
C17 | 0.0288 (9) | 0.0234 (9) | 0.0229 (9) | 0.0013 (7) | −0.0003 (7) | 0.0002 (7) |
C18 | 0.0263 (9) | 0.0250 (9) | 0.0274 (9) | −0.0015 (7) | 0.0028 (7) | −0.0025 (7) |
C21 | 0.0276 (9) | 0.0271 (10) | 0.0273 (9) | 0.0022 (7) | 0.0073 (7) | −0.0038 (7) |
C22 | 0.0307 (10) | 0.0278 (10) | 0.0339 (10) | −0.0003 (8) | 0.0021 (8) | −0.0015 (8) |
C23 | 0.0397 (11) | 0.0328 (11) | 0.0336 (10) | 0.0041 (9) | −0.0026 (9) | −0.0017 (8) |
C24 | 0.0527 (13) | 0.0283 (10) | 0.0276 (10) | 0.0048 (9) | 0.0068 (9) | −0.0011 (8) |
C25 | 0.0436 (12) | 0.0298 (11) | 0.0367 (11) | −0.0038 (9) | 0.0167 (9) | −0.0044 (9) |
C26 | 0.0295 (9) | 0.0321 (11) | 0.0335 (10) | −0.0003 (8) | 0.0105 (8) | −0.0043 (8) |
C27 | 0.0236 (9) | 0.0294 (10) | 0.0313 (10) | 0.0008 (7) | 0.0033 (7) | −0.0040 (8) |
C28 | 0.0211 (8) | 0.0268 (9) | 0.0290 (9) | 0.0010 (7) | 0.0015 (7) | −0.0009 (7) |
C32 | 0.0231 (9) | 0.0266 (9) | 0.0238 (9) | −0.0049 (7) | 0.0000 (7) | 0.0012 (7) |
C33 | 0.0201 (8) | 0.0249 (9) | 0.0261 (9) | 0.0003 (7) | 0.0036 (7) | −0.0007 (7) |
C34 | 0.0223 (8) | 0.0298 (10) | 0.0300 (9) | −0.0004 (7) | −0.0011 (7) | −0.0036 (8) |
C34A | 0.0252 (9) | 0.0269 (9) | 0.0247 (9) | −0.0017 (7) | 0.0045 (7) | −0.0004 (7) |
C35 | 0.0340 (10) | 0.0337 (11) | 0.0294 (10) | −0.0011 (8) | 0.0005 (8) | −0.0051 (8) |
C36 | 0.0482 (12) | 0.0325 (11) | 0.0280 (10) | −0.0021 (9) | 0.0071 (9) | −0.0049 (8) |
C37 | 0.0418 (11) | 0.0271 (10) | 0.0331 (10) | 0.0067 (8) | 0.0132 (9) | 0.0015 (8) |
C38 | 0.0310 (9) | 0.0302 (10) | 0.0314 (10) | 0.0056 (8) | 0.0072 (8) | 0.0046 (8) |
C38A | 0.0257 (9) | 0.0243 (9) | 0.0248 (9) | −0.0001 (7) | 0.0055 (7) | 0.0047 (7) |
C1—C33 | 1.516 (2) | C24—C25 | 1.383 (3) |
C1—C28 | 1.527 (3) | C24—Cl2 | 1.740 (2) |
C1—C18 | 1.542 (2) | C25—C26 | 1.385 (3) |
C1—H1 | 1.00 | C25—H25 | 0.95 |
C11—C12 | 1.389 (3) | C26—H26 | 0.95 |
C11—C16 | 1.400 (2) | C27—O27 | 1.218 (2) |
C11—C17 | 1.495 (2) | C27—C28 | 1.511 (2) |
C12—C13 | 1.391 (3) | C28—H28A | 0.99 |
C12—H12 | 0.95 | C28—H28B | 0.99 |
C13—C14 | 1.382 (3) | N31—C32 | 1.302 (2) |
C13—H13 | 0.95 | N31—C38A | 1.368 (2) |
C14—C15 | 1.380 (3) | C32—C33 | 1.422 (2) |
C14—Cl1 | 1.742 (2) | C33—C34 | 1.370 (3) |
C15—C16 | 1.384 (3) | C34—C34A | 1.414 (3) |
C15—H15 | 0.95 | C34A—C35 | 1.418 (3) |
C16—H16 | 0.95 | C35—C36 | 1.369 (3) |
C17—O17 | 1.214 (2) | C36—C37 | 1.402 (3) |
C17—C18 | 1.519 (2) | C37—C38 | 1.369 (3) |
C18—H18A | 0.99 | C38—C38A | 1.416 (3) |
C18—H18B | 0.99 | C34A—C38A | 1.409 (3) |
C21—C22 | 1.392 (3) | C32—Cl3 | 1.7463 (18) |
C21—C26 | 1.398 (3) | C34—H34 | 0.95 |
C21—C27 | 1.494 (3) | C35—H35 | 0.95 |
C22—C23 | 1.386 (3) | C36—H36 | 0.95 |
C22—H22 | 0.95 | C37—H37 | 0.95 |
C23—C24 | 1.381 (3) | C38—H38 | 0.95 |
C23—H23 | 0.95 | ||
C33—C1—C28 | 111.21 (15) | C25—C24—Cl2 | 119.31 (17) |
C33—C1—C18 | 110.30 (15) | C24—C25—C26 | 118.99 (19) |
C28—C1—C18 | 110.79 (14) | C24—C25—H25 | 120.5 |
C33—C1—H1 | 108.1 | C26—C25—H25 | 120.5 |
C28—C1—H1 | 108.1 | C25—C26—C21 | 120.61 (19) |
C18—C1—H1 | 108.1 | C25—C26—H26 | 119.7 |
C12—C11—C16 | 119.25 (17) | C21—C26—H26 | 119.7 |
C12—C11—C17 | 122.82 (16) | O27—C27—C21 | 120.57 (17) |
C16—C11—C17 | 117.93 (16) | O27—C27—C28 | 121.31 (17) |
C11—C12—C13 | 120.42 (18) | C21—C27—C28 | 118.11 (15) |
C11—C12—H12 | 119.8 | C27—C28—C1 | 113.25 (14) |
C13—C12—H12 | 119.8 | C27—C28—H28A | 108.9 |
C14—C13—C12 | 118.8 (2) | C1—C28—H28A | 108.9 |
C14—C13—H13 | 120.6 | C27—C28—H28B | 108.9 |
C12—C13—H13 | 120.6 | C1—C28—H28B | 108.9 |
C15—C14—C13 | 122.17 (18) | H28A—C28—H28B | 107.7 |
C15—C14—Cl1 | 118.74 (16) | C32—N31—C38A | 117.79 (15) |
C13—C14—Cl1 | 119.09 (17) | N31—C32—C33 | 126.24 (17) |
C14—C15—C16 | 118.57 (18) | N31—C32—Cl3 | 114.58 (13) |
C14—C15—H15 | 120.7 | C33—C32—Cl3 | 119.18 (14) |
C16—C15—H15 | 120.7 | C34—C33—C32 | 115.27 (16) |
C15—C16—C11 | 120.79 (18) | C34—C33—C1 | 121.02 (16) |
C15—C16—H16 | 119.6 | C32—C33—C1 | 123.71 (16) |
C11—C16—H16 | 119.6 | C33—C34—C34A | 121.44 (17) |
O17—C17—C11 | 120.47 (16) | C33—C34—H34 | 119.3 |
O17—C17—C18 | 120.93 (16) | C34A—C34—H34 | 119.3 |
C11—C17—C18 | 118.60 (15) | C38A—C34A—C34 | 117.50 (17) |
C17—C18—C1 | 112.83 (15) | C38A—C34A—C35 | 119.68 (17) |
C17—C18—H18A | 109.0 | C34—C34A—C35 | 122.82 (17) |
C1—C18—H18A | 109.0 | C36—C35—C34A | 119.47 (18) |
C17—C18—H18B | 109.0 | C36—C35—H35 | 120.3 |
C1—C18—H18B | 109.0 | C34A—C35—H35 | 120.3 |
H18A—C18—H18B | 107.8 | C35—C36—C37 | 120.83 (19) |
C22—C21—C26 | 119.05 (18) | C35—C36—H36 | 119.6 |
C22—C21—C27 | 122.89 (17) | C37—C36—H36 | 119.6 |
C26—C21—C27 | 118.05 (17) | C38—C37—C36 | 120.85 (18) |
C23—C22—C21 | 120.60 (18) | C38—C37—H37 | 119.6 |
C23—C22—H22 | 119.7 | C36—C37—H37 | 119.6 |
C21—C22—H22 | 119.7 | C37—C38—C38A | 119.69 (18) |
C24—C23—C22 | 119.16 (19) | C37—C38—H38 | 120.2 |
C24—C23—H23 | 120.4 | C38A—C38—H38 | 120.2 |
C22—C23—H23 | 120.4 | N31—C38A—C34A | 121.68 (16) |
C23—C24—C25 | 121.56 (19) | N31—C38A—C38 | 118.91 (17) |
C23—C24—Cl2 | 119.12 (17) | C34A—C38A—C38 | 119.41 (17) |
C16—C11—C12—C13 | −0.1 (3) | C27—C21—C26—C25 | −178.58 (17) |
C17—C11—C12—C13 | 179.87 (19) | C22—C21—C27—O27 | 165.11 (19) |
C11—C12—C13—C14 | 0.3 (3) | C26—C21—C27—O27 | −16.0 (3) |
C12—C13—C14—C15 | 0.0 (3) | C26—C21—C27—C28 | 162.49 (16) |
C12—C13—C14—Cl1 | −179.73 (16) | O27—C27—C28—C1 | 2.2 (3) |
C13—C14—C15—C16 | −0.4 (3) | C18—C1—C28—C27 | 169.40 (15) |
Cl1—C14—C15—C16 | 179.32 (14) | C38A—N31—C32—C33 | −1.2 (3) |
C14—C15—C16—C11 | 0.6 (3) | C38A—N31—C32—Cl3 | 178.55 (12) |
C12—C11—C16—C15 | −0.3 (3) | N31—C32—C33—C34 | 2.5 (3) |
C17—C11—C16—C15 | 179.70 (16) | Cl3—C32—C33—C34 | −177.30 (14) |
C12—C11—C17—O17 | −176.07 (18) | N31—C32—C33—C1 | −177.86 (17) |
C16—C11—C17—O17 | 3.9 (3) | Cl3—C32—C33—C1 | 2.4 (2) |
C16—C11—C17—C18 | −176.70 (16) | C28—C1—C33—C34 | −53.7 (2) |
O17—C17—C18—C1 | −9.5 (2) | C18—C1—C33—C34 | 69.6 (2) |
C32—C33—C1—C18 | −110.03 (19) | C32—C33—C34—C34A | −0.9 (3) |
C33—C1—C18—C17 | 160.82 (15) | C1—C33—C34—C34A | 179.43 (16) |
C1—C18—C17—C11 | 171.11 (15) | C33—C34—C34A—C38A | −1.6 (3) |
C18—C17—C11—C12 | 3.3 (3) | C33—C34—C34A—C35 | 178.77 (18) |
C32—C33—C1—C28 | 126.64 (18) | C38A—C34A—C35—C36 | −1.1 (3) |
C33—C1—C28—C27 | −67.55 (19) | C34—C34A—C35—C36 | 178.56 (18) |
C1—C28—C27—C21 | −176.29 (15) | C34A—C35—C36—C37 | −1.6 (3) |
C28—C27—C21—C22 | −16.4 (3) | C35—C36—C37—C38 | 2.8 (3) |
C28—C1—C18—C17 | −75.61 (19) | C36—C37—C38—C38A | −1.4 (3) |
C26—C21—C22—C23 | 1.5 (3) | C32—N31—C38A—C34A | −1.6 (3) |
C27—C21—C22—C23 | −179.62 (18) | C32—N31—C38A—C38 | 178.55 (16) |
C21—C22—C23—C24 | −2.1 (3) | C34—C34A—C38A—N31 | 3.0 (3) |
C22—C23—C24—C25 | 0.9 (3) | C35—C34A—C38A—N31 | −177.39 (17) |
C22—C23—C24—Cl2 | −177.98 (15) | C34—C34A—C38A—C38 | −177.21 (17) |
C23—C24—C25—C26 | 0.9 (3) | C35—C34A—C38A—C38 | 2.4 (3) |
Cl2—C24—C25—C26 | 179.80 (15) | C37—C38—C38A—N31 | 178.63 (17) |
C24—C25—C26—C21 | −1.6 (3) | C37—C38—C38A—C34A | −1.2 (3) |
C22—C21—C26—C25 | 0.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C15—H15···O17i | 0.95 | 2.59 | 3.502 (2) | 160 |
C34—H34···N31ii | 0.95 | 2.39 | 3.244 (2) | 150 |
C37—H37···O17iii | 0.95 | 2.45 | 3.330 (2) | 155 |
Symmetry codes: (i) x−1/2, −y+3/2, −z+1; (ii) x−1/2, y, −z+1/2; (iii) −x+1, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | C26H18Cl3NO2 |
Mr | 482.76 |
Crystal system, space group | Orthorhombic, Pbca |
Temperature (K) | 120 |
a, b, c (Å) | 11.2405 (2), 18.8738 (3), 21.0529 (3) |
V (Å3) | 4466.39 (12) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.44 |
Crystal size (mm) | 0.20 × 0.20 × 0.15 |
Data collection | |
Diffractometer | Nonius KappaCCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.922, 0.938 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 52455, 5112, 3921 |
Rint | 0.048 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.042, 0.116, 1.05 |
No. of reflections | 5112 |
No. of parameters | 289 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.41, −0.58 |
Computer programs: COLLECT (Hooft, 1999), DENZO (Otwinowski & Minor, 1997) and COLLECT, DENZO and COLLECT, OSCAIL (McArdle, 2003) and SHELXS97 (Sheldrick, 1997), OSCAIL and SHELXL97 (Sheldrick, 1997), PLATON (Spek, 2003), SHELXL97 and PRPKAPPA (Ferguson, 1999).
N31—C32 | 1.302 (2) | C35—C36 | 1.369 (3) |
N31—C38A | 1.368 (2) | C36—C37 | 1.402 (3) |
C32—C33 | 1.422 (2) | C37—C38 | 1.369 (3) |
C33—C34 | 1.370 (3) | C38—C38A | 1.416 (3) |
C34—C34A | 1.414 (3) | C34A—C38A | 1.409 (3) |
C34A—C35 | 1.418 (3) | C32—Cl3 | 1.7463 (18) |
C32—C33—C1—C18 | −110.03 (19) | C32—C33—C1—C28 | 126.64 (18) |
C33—C1—C18—C17 | 160.82 (15) | C33—C1—C28—C27 | −67.55 (19) |
C1—C18—C17—C11 | 171.11 (15) | C1—C28—C27—C21 | −176.29 (15) |
C18—C17—C11—C12 | 3.3 (3) | C28—C27—C21—C22 | −16.4 (3) |
D—H···A | D—H | H···A | D···A | D—H···A |
C15—H15···O17i | 0.95 | 2.59 | 3.502 (2) | 160 |
C34—H34···N31ii | 0.95 | 2.39 | 3.244 (2) | 150 |
C37—H37···O17iii | 0.95 | 2.45 | 3.330 (2) | 155 |
Symmetry codes: (i) x−1/2, −y+3/2, −z+1; (ii) x−1/2, y, −z+1/2; (iii) −x+1, y−1/2, −z+1/2. |
Acknowledgements
X-ray data were collected at the EPSRC X-ray Crystallographic Service, University of Southampton, England. JC thanks the Consejería de Innovación, Ciencia y Empresa (Junta de Andalucía, Spain) and the Universidad de Jaén for financial support. BI and HT thank COLCIENCIAS, UNIVALLE (Universidad del Valle, Colombia) and Universidad Nacional de Colombia for financial support.
References
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Hooft, R. W. W. (1999). COLLECT. Nonius BV, Delft, The Netherlands. Google Scholar
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With the aim of developing new classes of fused heterocyclic systems, we have prepared a range of novel chalcones appropriately functionalized for use as intermediates. The reactions used to prepare such chalcones involve methyl aryl ketones and aryl or heteroaryl aldehydes. We report here the structure of the title compound, (I), obtained in low yield as a by-product in the preparation of the pyrazolylquinoline (II) via the corresponding chalcone, (III), formed by the reaction between 2-chloro-3-quinolinecarbaldehyde and methyl 4-chlorophenyl ketone.
The bond distances within the quinoline portion of the molecule (Table 1) show evidence for significant bond fixation; thus the N31—C32 bond is significantly shorter than N31—C38A, while the C33—C34, C35—C36 and C37—C38 bonds are all significantly shorter than the other peripheral C—C bonds. The two independent 4-chlorobenzoylmethylene components adopt different conformations relative to the quinoline component so that the molecules have no internal symmetry and hence are chiral; however, the centrosymmetric space group Pbca accommodates equal numbers of the two enantiomorphic forms.
The molecules are linked into sheets by two hydrogen bonds, one each of C—H···N and C—H···O types (Table 2), and the sheet formation is readily analysed in terms of two one-dimensional substructures. Quinolinyl atom C34 in the molecule at (x, y, z) acts as a hydrogen-bond donor to atom N31 in the molecule at (-1/2 + x, y, 1/2 - z), so forming a C(5) (Bernstein et al., 1995) chain running parallel to the [100] direction and generated by the a-glide plane at z = 1/4 (Fig. 2). In addition, quinolinyl atom C37 in the molecule at (x, y, z) acts as a hydrogen-bond donor to atom O17 in the molecule at (1 - x, -1/2 + y, 1/2 - z), so forming a C(11) chain running parallel to the [010] direction and generated by the 21 screw axis along (1/2, y, 1/4) (Fig. 3).
The combination of the [100] and [010] chains generates a (001) sheet in the form of a (4,4)-net (Batten & Robson, 1998) built from a single type of R44(26) ring, lying in the domain -0.02 < z < 0.52, and generated by the glide plane and screw axes at z = 1/4 (Fig. 4). A second sheet, related to the first by inversion, lies in the domain 0.48 < z < 1.02 and is generated by the glide plane and screw axes at z = 3/4.
The only direction-specific interaction between adjacent sheets is a rather long C—H···O contact with the aryl atom C15 as the donor (Table 2) but whose H···O distance is close to the van der Waals limit; this interaction is therefore probably of little or no structural significance.
The molecular constitution of compound (I) has some resemblance to that of the thienyl compound (IV), but the supramolecular arrangement is entirely different in (IV), where the molecules are linked into cyclic centrosymmetric dimers by paired C—H···π(thienyl) hydrogen bonds (Trilleras et al., 2005).