organic compounds
3-Amino-1-(3,4-dimethoxyphenyl)-9,10-dihydrophenanthrene-2,4-dicarbonitrile
aChemistry Department, Faculty of Science, King Abdulaziz University, PO Box 80203, Jeddah, Saudi Arabia, bThe Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, PO Box 80203, Saudi Arabia, and cDepartment of Chemistry, University of Malaya, 50603 Kuala Lumpur, Malaysia
*Correspondence e-mail: edward.tiekink@gmail.com
In the title compound, C24H19N3O2, the partially saturated ring adopts a distorted half-chair conformation with the methylene-C atom closest to the aminobenzene ring lying 0.664 (3) Å out of the plane defined by the five remaining atoms (r.m.s. deviation = 0.1429 Å. The dihedral angle [32.01 (10)°] between the benzene rings on either side of this ring indicates a significant fold in this part of the molecule. The dimethoxy-substituted benzene ring is almost orthogonal to the benzene ring to which it is attached [dihedral angle = 72.03 (9)°]. The molecule has been observed previously as the major component of a 1:19 with 2-amino-4-(3,4-dimethoxyphenyl)-5,6-dihydrobenzo[ha]quinoline-3-carbonitrile [Asiri et al. (2011). Acta Cryst. E67, o2873–o2873]. Supramolecular chains with base vector [201] are formed in the via N—H⋯O hydrogen bonds between the amino H atoms of one molecule interacting with the methoxy O atoms of a neighbouring molecule. The chains are linked into a three-dimensional architecture by C—H⋯π interactions.
Related literature
For background to the biological activity of related phenanthrene compounds, see: Wang et al. (2010); Rostom et al. (2011). For related structures, see: Asiri et al. (2011a,b); Al-Youbi et al. (2012).
Experimental
Crystal data
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Refinement
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Data collection: CrysAlis PRO (Agilent, 2011); cell CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).
Supporting information
10.1107/S1600536812011129/sj5212sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536812011129/sj5212Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536812011129/sj5212Isup3.cml
A mixture of 3,4-dimethoxybenzaldehyde (1.66 g, 0.01 mmol), 1-tetralone (1.46 g, 0.01 mmol), malononitrile (0.66 g, 0.01 mmol) and ammonium acetate (6.2 g, 0.08 mmol) in absolute ethanol (50 ml) was refluxed for 6 h. The reaction mixture was allowed to cool. The precipitate that formed was filtered, washed with water, dried and recrystallized from ethanol. Yield: 69%, M. pt. 533–535 K.
Carbon-bound H-atoms were placed in calculated positions [C—H = 0.95 to 0.99 Å, Uiso(H) = 1.2 to 1.5Ueq(C)] and were included in the
in the riding model approximation. The N—H atoms were located in a difference Fourier map, and were refined with a distance restraint of N—H = 0.88±0.01 Å; their Uiso values were refined. Owing to poor agreement, the (1 15 5) reflection was omitted from the final cycles of refinement.The X-ray crystallographic investigation of the title compound, 3-amino-1-(3,4-dimethoxyphenyl)-9,10-dihydrophenanthrene-2,4-dicarbonitrile (I), was motivated by reports of the biological activity of related compounds (Wang et al., 2010; Rostom et al., 2011) and allied
investigations (Asiri et al., 2011a; Al-Youbi et al., 2012). The molecule of (I) has been observed previously in its 1/19 with 2-amino-4-(3,4-dimethoxyphenyl)-5,6-dihydrobenzo[ha]quinoline-3-carbonitrile (Asiri et al., 2011b).In (I), Fig. 1, the partially saturated ring adopts a distorted twisted half chair conformation with the C2 atom lying 0.664 (3) Å out of the plane defined by the five remaining atoms [r.m.s. deviation = 0.1429 Å; maximum deviations = 0.1733 (11) Å for the C9 atom and -0.2097 (14) Å for the C10 atom]. The dihedral angle between the benzene rings on either side of this ring = 32.01 (10)°, indicating a significant fold in this part of the molecule. The dimethoxy-substituted benzene ring is almost normal to the plane of the benzene ring to which it is attached, forming a dihedral angle of 72.03 (9)° The O1-and O2-methoxy substituents are each slightly twisted out of the plane of the benzene ring to which they are attached as seen in the values of the C23—O1—C19—C18 and C24—O2—C20—C21 torsion angles of -13.7 (3) and -5.0 (3)°, respectively; they lie to opposite sides of the plane through the benzene ting.
The most prominent feature in the crystal packing is the formation of N—H···O hydrogen bonds whereby the amino-H atoms are connected to the two methoxy-O atoms of a neighbouring molecule leading to a seven-membered {···HNH···OC2O} synthon linked into twisted supramolecular chains, Fig. 2 and Table 1; the base vector is along [2 0 1]. Clearly, the presence of two oxygen atoms in (I), is sufficient to disrupt the normally formed N—H···N hydrogen bonds between centrosymmetrically related molecules leading to to 12-membered {···HNC3N}2 synthons (Asiri et al., 2011a; Asiri et al., 2011b). Supramolecular chains are sustained in a three-dimensional architecture by C—H···π interactions, Fig. 3 and Table 1.
For background to the biological activity of related phenanthrene compounds, see: Wang et al. (2010); Rostom et al. (2011). For related structures, see: Asiri et al. (2011a,b); Al-Youbi et al. (2012).
Data collection: CrysAlis PRO (Agilent, 2011); cell
CrysAlis PRO (Agilent, 2011); data reduction: CrysAlis PRO (Agilent, 2011); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006); software used to prepare material for publication: publCIF (Westrip, 2010).Fig. 1. The molecular structure of (I) showing the atom-labelling scheme and displacement ellipsoids at the 50% probability level. | |
Fig. 2. The supramolecular chain in (I) sustained by N—H···O hydrogen bonds shown as blue dashed lines. | |
Fig. 3. A view in projection down the a axis of the unit-cell contents of (I). The N—H···O hydrogen bonds and C—H···π interactions are shown as blue and purple dashed lines, respectively. |
C24H19N3O2 | F(000) = 800 |
Mr = 381.42 | Dx = 1.358 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 2185 reflections |
a = 8.9360 (7) Å | θ = 2.4–27.5° |
b = 14.5007 (11) Å | µ = 0.09 mm−1 |
c = 14.8074 (11) Å | T = 100 K |
β = 103.471 (8)° | Chip, orange |
V = 1865.9 (2) Å3 | 0.20 × 0.15 × 0.10 mm |
Z = 4 |
Agilent SuperNova Dual diffractometer with an Atlas detector | 4272 independent reflections |
Radiation source: SuperNova (Mo) X-ray Source | 2851 reflections with I > 2σ(I) |
Mirror monochromator | Rint = 0.037 |
Detector resolution: 10.4041 pixels mm-1 | θmax = 27.6°, θmin = 2.7° |
ω scan | h = −11→11 |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | k = −18→17 |
Tmin = 0.983, Tmax = 0.991 | l = −11→19 |
8105 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)] = 0.055 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.136 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0526P)2 + 0.2552P] where P = (Fo2 + 2Fc2)/3 |
4272 reflections | (Δ/σ)max = 0.001 |
270 parameters | Δρmax = 0.25 e Å−3 |
0 restraints | Δρmin = −0.23 e Å−3 |
C24H19N3O2 | V = 1865.9 (2) Å3 |
Mr = 381.42 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 8.9360 (7) Å | µ = 0.09 mm−1 |
b = 14.5007 (11) Å | T = 100 K |
c = 14.8074 (11) Å | 0.20 × 0.15 × 0.10 mm |
β = 103.471 (8)° |
Agilent SuperNova Dual diffractometer with an Atlas detector | 4272 independent reflections |
Absorption correction: multi-scan (CrysAlis PRO; Agilent, 2011) | 2851 reflections with I > 2σ(I) |
Tmin = 0.983, Tmax = 0.991 | Rint = 0.037 |
8105 measured reflections |
R[F2 > 2σ(F2)] = 0.055 | 0 restraints |
wR(F2) = 0.136 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.03 | Δρmax = 0.25 e Å−3 |
4272 reflections | Δρmin = −0.23 e Å−3 |
270 parameters |
x | y | z | Uiso*/Ueq | ||
O1 | 0.69410 (14) | 0.85996 (10) | 0.89152 (10) | 0.0255 (4) | |
O2 | 0.92377 (14) | 0.80208 (9) | 0.82524 (9) | 0.0215 (3) | |
N1 | −0.21440 (18) | 0.47271 (12) | 0.60427 (12) | 0.0271 (4) | |
N2 | −0.0035 (2) | 0.62438 (13) | 0.51881 (12) | 0.0243 (4) | |
N3 | 0.31457 (19) | 0.75869 (13) | 0.50677 (13) | 0.0278 (4) | |
C1 | 0.1055 (2) | 0.47341 (14) | 0.82665 (13) | 0.0231 (5) | |
C2 | −0.0456 (2) | 0.47157 (15) | 0.83797 (15) | 0.0289 (5) | |
H2A | −0.1234 | 0.5058 | 0.7968 | 0.035* | |
C3 | −0.0831 (3) | 0.42019 (16) | 0.90882 (16) | 0.0347 (6) | |
H3 | −0.1859 | 0.4194 | 0.9160 | 0.042* | |
C4 | 0.0298 (3) | 0.37015 (16) | 0.96890 (16) | 0.0393 (6) | |
H4 | 0.0038 | 0.3338 | 1.0164 | 0.047* | |
C5 | 0.1807 (3) | 0.37300 (15) | 0.95975 (15) | 0.0350 (6) | |
H5 | 0.2576 | 0.3388 | 1.0014 | 0.042* | |
C6 | 0.2208 (2) | 0.42536 (15) | 0.89025 (14) | 0.0279 (5) | |
C7 | 0.3846 (2) | 0.43614 (15) | 0.88204 (15) | 0.0313 (5) | |
H7A | 0.4029 | 0.3973 | 0.8307 | 0.038* | |
H7B | 0.4561 | 0.4162 | 0.9403 | 0.038* | |
C8 | 0.4127 (2) | 0.53735 (15) | 0.86299 (14) | 0.0273 (5) | |
H8A | 0.3967 | 0.5760 | 0.9151 | 0.033* | |
H8B | 0.5200 | 0.5459 | 0.8573 | 0.033* | |
C9 | 0.3017 (2) | 0.56644 (14) | 0.77347 (13) | 0.0215 (4) | |
C10 | 0.1525 (2) | 0.52829 (14) | 0.75366 (13) | 0.0207 (4) | |
C11 | 0.0532 (2) | 0.54618 (13) | 0.66663 (13) | 0.0182 (4) | |
C12 | 0.0953 (2) | 0.60554 (13) | 0.60093 (13) | 0.0189 (4) | |
C13 | 0.2426 (2) | 0.64665 (13) | 0.62557 (13) | 0.0186 (4) | |
C14 | 0.3445 (2) | 0.62742 (13) | 0.71120 (13) | 0.0198 (4) | |
C15 | −0.0950 (2) | 0.50286 (14) | 0.63642 (14) | 0.0221 (4) | |
C16 | 0.2857 (2) | 0.70935 (14) | 0.56101 (14) | 0.0210 (4) | |
C17 | 0.4968 (2) | 0.67539 (14) | 0.73596 (13) | 0.0199 (4) | |
C18 | 0.5213 (2) | 0.74481 (14) | 0.80346 (14) | 0.0215 (5) | |
H18 | 0.4402 | 0.7623 | 0.8315 | 0.026* | |
C19 | 0.6633 (2) | 0.78845 (13) | 0.82984 (13) | 0.0193 (4) | |
C20 | 0.7852 (2) | 0.75935 (13) | 0.79148 (13) | 0.0182 (4) | |
C21 | 0.7588 (2) | 0.69338 (14) | 0.72295 (14) | 0.0241 (5) | |
H21 | 0.8394 | 0.6761 | 0.6944 | 0.029* | |
C22 | 0.6146 (2) | 0.65146 (15) | 0.69485 (14) | 0.0249 (5) | |
H22 | 0.5977 | 0.6062 | 0.6471 | 0.030* | |
C23 | 0.5626 (2) | 0.90343 (16) | 0.91355 (16) | 0.0333 (6) | |
H23A | 0.5969 | 0.9532 | 0.9583 | 0.050* | |
H23B | 0.5047 | 0.8578 | 0.9405 | 0.050* | |
H23C | 0.4963 | 0.9289 | 0.8568 | 0.050* | |
C24 | 1.0509 (2) | 0.76905 (15) | 0.79032 (15) | 0.0257 (5) | |
H24A | 1.1434 | 0.8047 | 0.8181 | 0.039* | |
H24B | 1.0274 | 0.7762 | 0.7227 | 0.039* | |
H24C | 1.0688 | 0.7038 | 0.8063 | 0.039* | |
H1 | −0.105 (3) | 0.5996 (17) | 0.5047 (17) | 0.044 (7)* | |
H2 | 0.028 (3) | 0.6568 (18) | 0.4750 (18) | 0.040 (7)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0178 (7) | 0.0281 (8) | 0.0307 (8) | 0.0001 (6) | 0.0057 (6) | −0.0119 (7) |
O2 | 0.0141 (6) | 0.0248 (8) | 0.0260 (7) | −0.0022 (5) | 0.0054 (5) | −0.0058 (6) |
N1 | 0.0207 (9) | 0.0277 (10) | 0.0327 (10) | −0.0014 (7) | 0.0060 (7) | 0.0010 (8) |
N2 | 0.0186 (9) | 0.0298 (11) | 0.0222 (9) | −0.0030 (7) | −0.0002 (7) | 0.0048 (8) |
N3 | 0.0257 (9) | 0.0278 (10) | 0.0300 (10) | −0.0031 (7) | 0.0065 (8) | 0.0015 (9) |
C1 | 0.0304 (11) | 0.0185 (11) | 0.0196 (10) | −0.0063 (8) | 0.0040 (8) | −0.0041 (9) |
C2 | 0.0353 (12) | 0.0265 (12) | 0.0266 (11) | −0.0058 (9) | 0.0111 (9) | −0.0031 (10) |
C3 | 0.0497 (15) | 0.0289 (13) | 0.0306 (12) | −0.0118 (10) | 0.0193 (11) | −0.0060 (10) |
C4 | 0.0641 (17) | 0.0315 (14) | 0.0255 (12) | −0.0142 (12) | 0.0170 (11) | −0.0022 (11) |
C5 | 0.0537 (15) | 0.0264 (13) | 0.0213 (11) | −0.0054 (11) | 0.0016 (10) | 0.0002 (10) |
C6 | 0.0400 (13) | 0.0228 (12) | 0.0179 (10) | −0.0055 (9) | 0.0008 (9) | −0.0011 (9) |
C7 | 0.0355 (12) | 0.0286 (13) | 0.0232 (11) | 0.0008 (9) | −0.0063 (9) | 0.0025 (10) |
C8 | 0.0278 (11) | 0.0302 (12) | 0.0203 (10) | −0.0025 (9) | −0.0020 (8) | −0.0014 (10) |
C9 | 0.0222 (10) | 0.0198 (11) | 0.0200 (10) | 0.0011 (8) | −0.0001 (8) | −0.0023 (9) |
C10 | 0.0229 (10) | 0.0191 (11) | 0.0196 (10) | −0.0005 (8) | 0.0038 (8) | −0.0020 (9) |
C11 | 0.0161 (9) | 0.0168 (10) | 0.0221 (9) | −0.0009 (7) | 0.0049 (7) | −0.0037 (8) |
C12 | 0.0163 (9) | 0.0192 (10) | 0.0202 (9) | 0.0017 (7) | 0.0025 (7) | −0.0024 (8) |
C13 | 0.0164 (9) | 0.0177 (10) | 0.0221 (10) | −0.0003 (7) | 0.0055 (7) | −0.0015 (8) |
C14 | 0.0163 (9) | 0.0206 (10) | 0.0223 (10) | 0.0021 (8) | 0.0036 (8) | −0.0048 (9) |
C15 | 0.0241 (10) | 0.0220 (11) | 0.0215 (10) | 0.0001 (8) | 0.0080 (8) | 0.0011 (9) |
C16 | 0.0165 (10) | 0.0221 (11) | 0.0234 (10) | −0.0007 (8) | 0.0026 (8) | −0.0029 (9) |
C17 | 0.0155 (9) | 0.0217 (10) | 0.0206 (10) | 0.0007 (8) | 0.0001 (7) | 0.0006 (9) |
C18 | 0.0152 (9) | 0.0264 (11) | 0.0229 (10) | 0.0026 (8) | 0.0042 (8) | −0.0011 (9) |
C19 | 0.0188 (10) | 0.0190 (10) | 0.0185 (9) | 0.0019 (8) | 0.0009 (7) | −0.0034 (8) |
C20 | 0.0132 (9) | 0.0200 (10) | 0.0203 (10) | 0.0014 (7) | 0.0013 (7) | 0.0023 (8) |
C21 | 0.0177 (10) | 0.0292 (12) | 0.0266 (11) | −0.0009 (8) | 0.0078 (8) | −0.0060 (9) |
C22 | 0.0206 (10) | 0.0298 (12) | 0.0232 (10) | −0.0008 (8) | 0.0030 (8) | −0.0078 (9) |
C23 | 0.0241 (11) | 0.0366 (14) | 0.0410 (13) | 0.0009 (9) | 0.0109 (9) | −0.0171 (11) |
C24 | 0.0177 (10) | 0.0287 (12) | 0.0323 (11) | −0.0027 (8) | 0.0087 (8) | −0.0074 (10) |
O1—C19 | 1.367 (2) | C8—H8B | 0.9900 |
O1—C23 | 1.437 (2) | C9—C14 | 1.394 (3) |
O2—C20 | 1.371 (2) | C9—C10 | 1.410 (3) |
O2—C24 | 1.436 (2) | C10—C11 | 1.408 (2) |
N1—C15 | 1.149 (2) | C11—C12 | 1.414 (3) |
N2—C12 | 1.354 (2) | C11—C15 | 1.440 (3) |
N2—H1 | 0.95 (2) | C12—C13 | 1.413 (3) |
N2—H2 | 0.90 (3) | C13—C14 | 1.406 (2) |
N3—C16 | 1.149 (3) | C13—C16 | 1.435 (3) |
C1—C2 | 1.400 (3) | C14—C17 | 1.496 (3) |
C1—C6 | 1.408 (3) | C17—C22 | 1.377 (3) |
C1—C10 | 1.479 (3) | C17—C18 | 1.400 (3) |
C2—C3 | 1.390 (3) | C18—C19 | 1.390 (3) |
C2—H2A | 0.9500 | C18—H18 | 0.9500 |
C3—C4 | 1.384 (3) | C19—C20 | 1.405 (3) |
C3—H3 | 0.9500 | C20—C21 | 1.374 (3) |
C4—C5 | 1.387 (3) | C21—C22 | 1.398 (3) |
C4—H4 | 0.9500 | C21—H21 | 0.9500 |
C5—C6 | 1.391 (3) | C22—H22 | 0.9500 |
C5—H5 | 0.9500 | C23—H23A | 0.9800 |
C6—C7 | 1.504 (3) | C23—H23B | 0.9800 |
C7—C8 | 1.526 (3) | C23—H23C | 0.9800 |
C7—H7A | 0.9900 | C24—H24A | 0.9800 |
C7—H7B | 0.9900 | C24—H24B | 0.9800 |
C8—C9 | 1.518 (2) | C24—H24C | 0.9800 |
C8—H8A | 0.9900 | ||
C19—O1—C23 | 115.90 (15) | C12—C11—C15 | 115.13 (16) |
C20—O2—C24 | 116.20 (15) | N2—C12—C13 | 121.33 (19) |
C12—N2—H1 | 120.6 (15) | N2—C12—C11 | 121.24 (17) |
C12—N2—H2 | 120.2 (15) | C13—C12—C11 | 117.39 (16) |
H1—N2—H2 | 119 (2) | C14—C13—C12 | 121.20 (18) |
C2—C1—C6 | 119.1 (2) | C14—C13—C16 | 120.53 (17) |
C2—C1—C10 | 122.94 (18) | C12—C13—C16 | 118.26 (16) |
C6—C1—C10 | 117.84 (19) | C9—C14—C13 | 120.14 (17) |
C3—C2—C1 | 120.6 (2) | C9—C14—C17 | 120.47 (16) |
C3—C2—H2A | 119.7 | C13—C14—C17 | 119.35 (18) |
C1—C2—H2A | 119.7 | N1—C15—C11 | 173.3 (2) |
C4—C3—C2 | 119.9 (2) | N3—C16—C13 | 177.17 (19) |
C4—C3—H3 | 120.0 | C22—C17—C18 | 119.25 (18) |
C2—C3—H3 | 120.0 | C22—C17—C14 | 121.31 (18) |
C3—C4—C5 | 120.0 (2) | C18—C17—C14 | 119.43 (18) |
C3—C4—H4 | 120.0 | C19—C18—C17 | 120.58 (19) |
C5—C4—H4 | 120.0 | C19—C18—H18 | 119.7 |
C4—C5—C6 | 120.8 (2) | C17—C18—H18 | 119.7 |
C4—C5—H5 | 119.6 | O1—C19—C18 | 124.16 (18) |
C6—C5—H5 | 119.6 | O1—C19—C20 | 116.35 (16) |
C5—C6—C1 | 119.4 (2) | C18—C19—C20 | 119.49 (18) |
C5—C6—C7 | 122.66 (19) | O2—C20—C21 | 124.66 (18) |
C1—C6—C7 | 117.94 (19) | O2—C20—C19 | 115.86 (17) |
C6—C7—C8 | 108.65 (18) | C21—C20—C19 | 119.47 (17) |
C6—C7—H7A | 110.0 | C20—C21—C22 | 120.66 (19) |
C8—C7—H7A | 110.0 | C20—C21—H21 | 119.7 |
C6—C7—H7B | 110.0 | C22—C21—H21 | 119.7 |
C8—C7—H7B | 110.0 | C17—C22—C21 | 120.35 (19) |
H7A—C7—H7B | 108.3 | C17—C22—H22 | 119.8 |
C9—C8—C7 | 109.05 (16) | C21—C22—H22 | 119.8 |
C9—C8—H8A | 109.9 | O1—C23—H23A | 109.5 |
C7—C8—H8A | 109.9 | O1—C23—H23B | 109.5 |
C9—C8—H8B | 109.9 | H23A—C23—H23B | 109.5 |
C7—C8—H8B | 109.9 | O1—C23—H23C | 109.5 |
H8A—C8—H8B | 108.3 | H23A—C23—H23C | 109.5 |
C14—C9—C10 | 120.23 (16) | H23B—C23—H23C | 109.5 |
C14—C9—C8 | 121.98 (17) | O2—C24—H24A | 109.5 |
C10—C9—C8 | 117.78 (18) | O2—C24—H24B | 109.5 |
C11—C10—C9 | 118.79 (18) | H24A—C24—H24B | 109.5 |
C11—C10—C1 | 122.85 (17) | O2—C24—H24C | 109.5 |
C9—C10—C1 | 118.33 (16) | H24A—C24—H24C | 109.5 |
C10—C11—C12 | 122.02 (16) | H24B—C24—H24C | 109.5 |
C10—C11—C15 | 122.79 (18) | ||
C6—C1—C2—C3 | −2.5 (3) | C11—C12—C13—C14 | 1.5 (3) |
C10—C1—C2—C3 | −178.78 (19) | N2—C12—C13—C16 | −0.1 (3) |
C1—C2—C3—C4 | −0.1 (3) | C11—C12—C13—C16 | −178.12 (18) |
C2—C3—C4—C5 | 1.5 (3) | C10—C9—C14—C13 | −4.1 (3) |
C3—C4—C5—C6 | −0.4 (3) | C8—C9—C14—C13 | 174.73 (19) |
C4—C5—C6—C1 | −2.2 (3) | C10—C9—C14—C17 | 173.87 (19) |
C4—C5—C6—C7 | 175.3 (2) | C8—C9—C14—C17 | −7.3 (3) |
C2—C1—C6—C5 | 3.6 (3) | C12—C13—C14—C9 | 0.4 (3) |
C10—C1—C6—C5 | −179.94 (18) | C16—C13—C14—C9 | −179.99 (19) |
C2—C1—C6—C7 | −174.09 (19) | C12—C13—C14—C17 | −177.60 (18) |
C10—C1—C6—C7 | 2.4 (3) | C16—C13—C14—C17 | 2.0 (3) |
C5—C6—C7—C8 | −135.7 (2) | C9—C14—C17—C22 | 107.8 (2) |
C1—C6—C7—C8 | 41.9 (2) | C13—C14—C17—C22 | −74.2 (3) |
C6—C7—C8—C9 | −59.5 (2) | C9—C14—C17—C18 | −71.0 (3) |
C7—C8—C9—C14 | −143.2 (2) | C13—C14—C17—C18 | 106.9 (2) |
C7—C8—C9—C10 | 35.7 (3) | C22—C17—C18—C19 | −0.9 (3) |
C14—C9—C10—C11 | 5.8 (3) | C14—C17—C18—C19 | 177.97 (18) |
C8—C9—C10—C11 | −173.11 (18) | C23—O1—C19—C18 | −13.7 (3) |
C14—C9—C10—C1 | −172.40 (19) | C23—O1—C19—C20 | 165.87 (18) |
C8—C9—C10—C1 | 8.7 (3) | C17—C18—C19—O1 | 176.45 (17) |
C2—C1—C10—C11 | −31.5 (3) | C17—C18—C19—C20 | −3.1 (3) |
C6—C1—C10—C11 | 152.19 (19) | C24—O2—C20—C21 | −5.0 (3) |
C2—C1—C10—C9 | 146.6 (2) | C24—O2—C20—C19 | 176.54 (17) |
C6—C1—C10—C9 | −29.7 (3) | O1—C19—C20—O2 | 4.2 (2) |
C9—C10—C11—C12 | −3.9 (3) | C18—C19—C20—O2 | −176.20 (17) |
C1—C10—C11—C12 | 174.20 (19) | O1—C19—C20—C21 | −174.28 (17) |
C9—C10—C11—C15 | 173.50 (19) | C18—C19—C20—C21 | 5.3 (3) |
C1—C10—C11—C15 | −8.4 (3) | O2—C20—C21—C22 | 178.03 (18) |
C10—C11—C12—N2 | −177.79 (19) | C19—C20—C21—C22 | −3.6 (3) |
C15—C11—C12—N2 | 4.6 (3) | C18—C17—C22—C21 | 2.6 (3) |
C10—C11—C12—C13 | 0.3 (3) | C14—C17—C22—C21 | −176.20 (18) |
C15—C11—C12—C13 | −177.29 (18) | C20—C21—C22—C17 | −0.4 (3) |
N2—C12—C13—C14 | 179.56 (19) |
Cg1 and Cg2 are the centroids of the C1–C6 and C17–C22 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H1···O1i | 0.95 (2) | 2.23 (2) | 2.921 (2) | 129 (2) |
N2—H2···O2i | 0.90 (3) | 2.28 (3) | 2.984 (2) | 135 (2) |
C24—H24B···Cg1ii | 0.98 | 2.78 | 3.538 (2) | 135 |
C7—H7A···Cg4iii | 0.99 | 2.92 | 3.792 (2) | 147 |
Symmetry codes: (i) x−1, −y+3/2, z−1/2; (ii) −x+1, y+1/2, −z+3/2; (iii) −x+1, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | C24H19N3O2 |
Mr | 381.42 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 100 |
a, b, c (Å) | 8.9360 (7), 14.5007 (11), 14.8074 (11) |
β (°) | 103.471 (8) |
V (Å3) | 1865.9 (2) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.09 |
Crystal size (mm) | 0.20 × 0.15 × 0.10 |
Data collection | |
Diffractometer | Agilent SuperNova Dual diffractometer with an Atlas detector |
Absorption correction | Multi-scan (CrysAlis PRO; Agilent, 2011) |
Tmin, Tmax | 0.983, 0.991 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8105, 4272, 2851 |
Rint | 0.037 |
(sin θ/λ)max (Å−1) | 0.651 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.055, 0.136, 1.03 |
No. of reflections | 4272 |
No. of parameters | 270 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.25, −0.23 |
Computer programs: CrysAlis PRO (Agilent, 2011), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), ORTEP-3 (Farrugia, 1997) and DIAMOND (Brandenburg, 2006), publCIF (Westrip, 2010).
Cg1 and Cg2 are the centroids of the C1–C6 and C17–C22 rings, respectively. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H1···O1i | 0.95 (2) | 2.23 (2) | 2.921 (2) | 129 (2) |
N2—H2···O2i | 0.90 (3) | 2.28 (3) | 2.984 (2) | 135 (2) |
C24—H24B···Cg1ii | 0.98 | 2.78 | 3.538 (2) | 135 |
C7—H7A···Cg4iii | 0.99 | 2.92 | 3.792 (2) | 147 |
Symmetry codes: (i) x−1, −y+3/2, z−1/2; (ii) −x+1, y+1/2, −z+3/2; (iii) −x+1, y−1/2, −z+3/2. |
Footnotes
‡Additional correspondence author, e-mail: aasiri2@kau.edu.sa.
Acknowledgements
The authors are grateful to the Center of Excellence for Advanced Materials Research and the Chemistry Department at King Abdulaziz University for providing the research facilities. We also thank the Ministry of Higher Education (Malaysia) for funding structural studies through the High-Impact Research scheme (UM.C/HIR/MOHE/SC/12).
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.
The X-ray crystallographic investigation of the title compound, 3-amino-1-(3,4-dimethoxyphenyl)-9,10-dihydrophenanthrene-2,4-dicarbonitrile (I), was motivated by reports of the biological activity of related compounds (Wang et al., 2010; Rostom et al., 2011) and allied crystal structure investigations (Asiri et al., 2011a; Al-Youbi et al., 2012). The molecule of (I) has been observed previously in its 1/19 co-crystal with 2-amino-4-(3,4-dimethoxyphenyl)-5,6-dihydrobenzo[ha]quinoline-3-carbonitrile (Asiri et al., 2011b).
In (I), Fig. 1, the partially saturated ring adopts a distorted twisted half chair conformation with the C2 atom lying 0.664 (3) Å out of the plane defined by the five remaining atoms [r.m.s. deviation = 0.1429 Å; maximum deviations = 0.1733 (11) Å for the C9 atom and -0.2097 (14) Å for the C10 atom]. The dihedral angle between the benzene rings on either side of this ring = 32.01 (10)°, indicating a significant fold in this part of the molecule. The dimethoxy-substituted benzene ring is almost normal to the plane of the benzene ring to which it is attached, forming a dihedral angle of 72.03 (9)° The O1-and O2-methoxy substituents are each slightly twisted out of the plane of the benzene ring to which they are attached as seen in the values of the C23—O1—C19—C18 and C24—O2—C20—C21 torsion angles of -13.7 (3) and -5.0 (3)°, respectively; they lie to opposite sides of the plane through the benzene ting.
The most prominent feature in the crystal packing is the formation of N—H···O hydrogen bonds whereby the amino-H atoms are connected to the two methoxy-O atoms of a neighbouring molecule leading to a seven-membered {···HNH···OC2O} synthon linked into twisted supramolecular chains, Fig. 2 and Table 1; the base vector is along [2 0 1]. Clearly, the presence of two oxygen atoms in (I), is sufficient to disrupt the normally formed N—H···N hydrogen bonds between centrosymmetrically related molecules leading to to 12-membered {···HNC3N}2 synthons (Asiri et al., 2011a; Asiri et al., 2011b). Supramolecular chains are sustained in a three-dimensional architecture by C—H···π interactions, Fig. 3 and Table 1.