organic compounds
(2E)-1-(2,5-Dimethoxyphenyl)-3-(3-nitrophenyl)prop-2-en-1-one
aX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia, bDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri, Mangalore 574 199, India, and cDepartment of Chemistry, P. A. College of Engineering, Mangalore 574 153, India
*Correspondence e-mail: hkfun@usm.my
In the title compound, C17H15NO5, an intramolecular C—H⋯O hydrogen bond generates an S(6) ring motif. The benzene rings form a dihedral angle of 6.45 (7)° with each other. In the crystal, inversion dimers linked by pairs of C—H⋯O hydrogen bonds generate R22(8) loops. Adjacent dimers are further connected by C—H⋯O hydrogen bonds into an infinite chain along the [011] direction.
Related literature
For biological activities of et al. (1999). For the structures of chalcone derivatives, see: Samshuddin et al. (2010); Fun et al. (2010a,b); Jasinski et al. (2010); Baktır et al. (2011a,b). For related crystal structures, see: Jasinski et al. (2008); Sarojini et al. (2007); Ma (2007). For hydrogen-bond motifs, see: Bernstein et al. (1995). For standard bond lengths, see: Allen et al. (1987).
see: DimmockExperimental
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: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL and PLATON (Spek, 2009).
Supporting information
10.1107/S1600536811043224/is2794sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811043224/is2794Isup2.hkl
Supporting information file. DOI: 10.1107/S1600536811043224/is2794Isup3.cml
To a mixture of 2,5-dimethoxy acetophenone (1.5 ml, 0.01 mol) and 3-nitrobenzaldehyde (1.51 g, 0.01 mol) in ethanol (50 ml), 10 ml of 10% sodium hydroxide solution was added and stirred at 5–10 °C for 3 h. The precipitate formed was collected by filtration and then purified by recrystallization from ethanol. The single crystals were grown from a DMF solution by slow evaporation method (m.p. 377–379 K).
All H atoms were positioned geometrically (C—H = 0.93 or 0.96 Å) and refined using a riding model with Uiso(H) = 1.2 or 1.5Ueq(C). A rotating group model was applied to the methyl group.
Data collection: APEX2 (Bruker, 2009); cell
SAINT (Bruker, 2009); data reduction: SAINT (Bruker, 2009); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).C17H15NO5 | Z = 2 |
Mr = 313.30 | F(000) = 328 |
Triclinic, P1 | Dx = 1.367 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 7.5015 (5) Å | Cell parameters from 5160 reflections |
b = 7.9962 (5) Å | θ = 2.6–32.3° |
c = 13.2468 (8) Å | µ = 0.10 mm−1 |
α = 86.507 (1)° | T = 296 K |
β = 80.342 (1)° | Block, yellow |
γ = 76.332 (1)° | 0.41 × 0.38 × 0.13 mm |
V = 760.96 (8) Å3 |
Bruker APEX DUO CCD area-detector diffractometer | 4381 independent reflections |
Radiation source: fine-focus sealed tube | 3195 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.021 |
ϕ and ω scans | θmax = 30.0°, θmin = 1.6° |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | h = −10→10 |
Tmin = 0.960, Tmax = 0.987 | k = −11→11 |
16631 measured reflections | l = −18→18 |
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)] = 0.048 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.179 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.1091P)2 + 0.0754P] where P = (Fo2 + 2Fc2)/3 |
4381 reflections | (Δ/σ)max < 0.001 |
210 parameters | Δρmax = 0.25 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
C17H15NO5 | γ = 76.332 (1)° |
Mr = 313.30 | V = 760.96 (8) Å3 |
Triclinic, P1 | Z = 2 |
a = 7.5015 (5) Å | Mo Kα radiation |
b = 7.9962 (5) Å | µ = 0.10 mm−1 |
c = 13.2468 (8) Å | T = 296 K |
α = 86.507 (1)° | 0.41 × 0.38 × 0.13 mm |
β = 80.342 (1)° |
Bruker APEX DUO CCD area-detector diffractometer | 4381 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2009) | 3195 reflections with I > 2σ(I) |
Tmin = 0.960, Tmax = 0.987 | Rint = 0.021 |
16631 measured reflections |
R[F2 > 2σ(F2)] = 0.048 | 0 restraints |
wR(F2) = 0.179 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.25 e Å−3 |
4381 reflections | Δρmin = −0.22 e Å−3 |
210 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 | 0.15506 (16) | 0.16718 (11) | 0.39750 (8) | 0.0591 (3) | |
O2 | 0.11277 (18) | −0.21224 (13) | 0.07147 (7) | 0.0671 (3) | |
O3 | 0.3565 (2) | −0.36287 (12) | 0.39765 (9) | 0.0802 (4) | |
O4 | 0.2174 (3) | 0.37169 (16) | 0.74170 (13) | 0.0989 (5) | |
O5 | 0.3301 (3) | 0.3286 (2) | 0.88284 (13) | 0.1121 (6) | |
N1 | 0.2941 (2) | 0.2780 (2) | 0.80490 (12) | 0.0729 (4) | |
C1 | 0.14468 (17) | 0.07338 (14) | 0.31743 (9) | 0.0409 (3) | |
C2 | 0.07436 (19) | 0.15014 (15) | 0.23001 (10) | 0.0487 (3) | |
H2A | 0.0312 | 0.2690 | 0.2265 | 0.058* | |
C3 | 0.0682 (2) | 0.05257 (17) | 0.14937 (10) | 0.0502 (3) | |
H3A | 0.0228 | 0.1057 | 0.0914 | 0.060* | |
C4 | 0.12955 (19) | −0.12516 (16) | 0.15424 (9) | 0.0458 (3) | |
C5 | 0.19828 (17) | −0.20273 (14) | 0.23995 (9) | 0.0419 (3) | |
H5A | 0.2391 | −0.3219 | 0.2429 | 0.050* | |
C6 | 0.20797 (16) | −0.10584 (13) | 0.32289 (8) | 0.0381 (2) | |
C7 | 0.29087 (19) | −0.20926 (14) | 0.40881 (9) | 0.0452 (3) | |
C8 | 0.2943 (2) | −0.12935 (16) | 0.50575 (9) | 0.0497 (3) | |
H8A | 0.2364 | −0.0137 | 0.5148 | 0.060* | |
C9 | 0.37566 (19) | −0.21468 (15) | 0.57977 (9) | 0.0460 (3) | |
H9A | 0.4334 | −0.3300 | 0.5689 | 0.055* | |
C10 | 0.38354 (17) | −0.14415 (15) | 0.67833 (8) | 0.0419 (3) | |
C11 | 0.33505 (18) | 0.03198 (16) | 0.69527 (9) | 0.0455 (3) | |
H11A | 0.2967 | 0.1094 | 0.6436 | 0.055* | |
C12 | 0.34453 (19) | 0.09026 (18) | 0.78952 (10) | 0.0522 (3) | |
C13 | 0.3995 (2) | −0.0188 (2) | 0.86864 (11) | 0.0644 (4) | |
H13A | 0.4044 | 0.0240 | 0.9316 | 0.077* | |
C14 | 0.4467 (2) | −0.1924 (2) | 0.85189 (11) | 0.0685 (4) | |
H14A | 0.4839 | −0.2685 | 0.9044 | 0.082* | |
C15 | 0.4399 (2) | −0.25623 (18) | 0.75773 (10) | 0.0542 (3) | |
H15A | 0.4732 | −0.3743 | 0.7476 | 0.065* | |
C16 | 0.0965 (3) | 0.34867 (17) | 0.39303 (15) | 0.0703 (5) | |
H16A | 0.1164 | 0.3956 | 0.4541 | 0.105* | |
H16B | −0.0333 | 0.3808 | 0.3876 | 0.105* | |
H16C | 0.1665 | 0.3928 | 0.3344 | 0.105* | |
C17 | 0.1863 (3) | −0.3918 (2) | 0.07001 (13) | 0.0749 (5) | |
H17A | 0.1741 | −0.4357 | 0.0063 | 0.112* | |
H17B | 0.1195 | −0.4461 | 0.1256 | 0.112* | |
H17C | 0.3152 | −0.4158 | 0.0772 | 0.112* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1 | 0.0856 (7) | 0.0345 (4) | 0.0589 (6) | −0.0060 (4) | −0.0224 (5) | −0.0149 (4) |
O2 | 0.0998 (9) | 0.0582 (6) | 0.0452 (5) | −0.0064 (5) | −0.0298 (5) | −0.0119 (4) |
O3 | 0.1363 (12) | 0.0367 (5) | 0.0692 (7) | 0.0086 (6) | −0.0573 (7) | −0.0125 (4) |
O4 | 0.1368 (14) | 0.0526 (7) | 0.1063 (11) | −0.0103 (8) | −0.0283 (10) | −0.0141 (7) |
O5 | 0.1285 (13) | 0.1081 (11) | 0.1059 (11) | −0.0205 (10) | −0.0210 (10) | −0.0706 (9) |
N1 | 0.0739 (9) | 0.0682 (8) | 0.0789 (9) | −0.0184 (7) | −0.0019 (7) | −0.0394 (7) |
C1 | 0.0446 (6) | 0.0331 (5) | 0.0452 (6) | −0.0076 (4) | −0.0069 (4) | −0.0070 (4) |
C2 | 0.0549 (7) | 0.0347 (5) | 0.0548 (7) | −0.0055 (5) | −0.0117 (5) | 0.0014 (5) |
C3 | 0.0566 (7) | 0.0475 (6) | 0.0456 (6) | −0.0065 (5) | −0.0153 (5) | 0.0041 (5) |
C4 | 0.0543 (7) | 0.0467 (6) | 0.0374 (5) | −0.0092 (5) | −0.0113 (5) | −0.0068 (4) |
C5 | 0.0517 (7) | 0.0342 (5) | 0.0396 (5) | −0.0050 (4) | −0.0113 (5) | −0.0071 (4) |
C6 | 0.0440 (6) | 0.0332 (5) | 0.0374 (5) | −0.0066 (4) | −0.0085 (4) | −0.0057 (4) |
C7 | 0.0595 (7) | 0.0365 (5) | 0.0418 (6) | −0.0074 (5) | −0.0172 (5) | −0.0058 (4) |
C8 | 0.0688 (8) | 0.0402 (6) | 0.0402 (6) | −0.0060 (5) | −0.0158 (5) | −0.0082 (4) |
C9 | 0.0570 (7) | 0.0386 (5) | 0.0439 (6) | −0.0076 (5) | −0.0149 (5) | −0.0072 (4) |
C10 | 0.0441 (6) | 0.0451 (6) | 0.0376 (5) | −0.0091 (5) | −0.0100 (4) | −0.0048 (4) |
C11 | 0.0509 (7) | 0.0473 (6) | 0.0404 (6) | −0.0124 (5) | −0.0090 (5) | −0.0070 (4) |
C12 | 0.0499 (7) | 0.0577 (7) | 0.0500 (7) | −0.0112 (6) | −0.0058 (5) | −0.0204 (6) |
C13 | 0.0604 (9) | 0.0892 (11) | 0.0426 (7) | −0.0066 (8) | −0.0139 (6) | −0.0193 (7) |
C14 | 0.0716 (10) | 0.0849 (11) | 0.0427 (7) | 0.0005 (8) | −0.0199 (6) | 0.0043 (7) |
C15 | 0.0583 (8) | 0.0526 (7) | 0.0484 (7) | −0.0022 (6) | −0.0151 (6) | 0.0014 (5) |
C16 | 0.0901 (12) | 0.0352 (6) | 0.0849 (11) | −0.0072 (7) | −0.0160 (9) | −0.0185 (7) |
C17 | 0.1071 (14) | 0.0604 (9) | 0.0567 (8) | −0.0066 (9) | −0.0215 (8) | −0.0245 (7) |
O1—C1 | 1.3585 (13) | C8—H8A | 0.9300 |
O1—C16 | 1.4140 (15) | C9—C10 | 1.4689 (15) |
O2—C4 | 1.3725 (13) | C9—H9A | 0.9300 |
O2—C17 | 1.4114 (18) | C10—C11 | 1.3911 (16) |
O3—C7 | 1.2186 (14) | C10—C15 | 1.3941 (16) |
O4—N1 | 1.214 (2) | C11—C12 | 1.3775 (16) |
O5—N1 | 1.2241 (18) | C11—H11A | 0.9300 |
N1—C12 | 1.477 (2) | C12—C13 | 1.375 (2) |
C1—C2 | 1.4006 (17) | C13—C14 | 1.372 (2) |
C1—C6 | 1.4007 (14) | C13—H13A | 0.9300 |
C2—C3 | 1.3736 (18) | C14—C15 | 1.3894 (19) |
C2—H2A | 0.9300 | C14—H14A | 0.9300 |
C3—C4 | 1.3876 (17) | C15—H15A | 0.9300 |
C3—H3A | 0.9300 | C16—H16A | 0.9600 |
C4—C5 | 1.3781 (16) | C16—H16B | 0.9600 |
C5—C6 | 1.4035 (14) | C16—H16C | 0.9600 |
C5—H5A | 0.9300 | C17—H17A | 0.9600 |
C6—C7 | 1.4986 (15) | C17—H17B | 0.9600 |
C7—C8 | 1.4754 (15) | C17—H17C | 0.9600 |
C8—C9 | 1.3121 (17) | ||
C1—O1—C16 | 119.72 (11) | C10—C9—H9A | 117.1 |
C4—O2—C17 | 117.66 (10) | C11—C10—C15 | 118.74 (11) |
O4—N1—O5 | 124.18 (17) | C11—C10—C9 | 121.88 (10) |
O4—N1—C12 | 118.90 (13) | C15—C10—C9 | 119.38 (11) |
O5—N1—C12 | 116.90 (18) | C12—C11—C10 | 119.18 (12) |
O1—C1—C2 | 122.18 (10) | C12—C11—H11A | 120.4 |
O1—C1—C6 | 118.48 (10) | C10—C11—H11A | 120.4 |
C2—C1—C6 | 119.33 (10) | C13—C12—C11 | 122.74 (13) |
C3—C2—C1 | 121.03 (11) | C13—C12—N1 | 119.30 (13) |
C3—C2—H2A | 119.5 | C11—C12—N1 | 117.96 (13) |
C1—C2—H2A | 119.5 | C14—C13—C12 | 118.00 (12) |
C2—C3—C4 | 120.09 (11) | C14—C13—H13A | 121.0 |
C2—C3—H3A | 120.0 | C12—C13—H13A | 121.0 |
C4—C3—H3A | 120.0 | C13—C14—C15 | 121.00 (13) |
O2—C4—C5 | 124.45 (11) | C13—C14—H14A | 119.5 |
O2—C4—C3 | 115.96 (10) | C15—C14—H14A | 119.5 |
C5—C4—C3 | 119.58 (10) | C14—C15—C10 | 120.34 (13) |
C4—C5—C6 | 121.45 (10) | C14—C15—H15A | 119.8 |
C4—C5—H5A | 119.3 | C10—C15—H15A | 119.8 |
C6—C5—H5A | 119.3 | O1—C16—H16A | 109.5 |
C1—C6—C5 | 118.51 (10) | O1—C16—H16B | 109.5 |
C1—C6—C7 | 126.70 (9) | H16A—C16—H16B | 109.5 |
C5—C6—C7 | 114.78 (9) | O1—C16—H16C | 109.5 |
O3—C7—C8 | 119.73 (10) | H16A—C16—H16C | 109.5 |
O3—C7—C6 | 118.73 (10) | H16B—C16—H16C | 109.5 |
C8—C7—C6 | 121.54 (10) | O2—C17—H17A | 109.5 |
C9—C8—C7 | 122.75 (11) | O2—C17—H17B | 109.5 |
C9—C8—H8A | 118.6 | H17A—C17—H17B | 109.5 |
C7—C8—H8A | 118.6 | O2—C17—H17C | 109.5 |
C8—C9—C10 | 125.75 (11) | H17A—C17—H17C | 109.5 |
C8—C9—H9A | 117.1 | H17B—C17—H17C | 109.5 |
C16—O1—C1—C2 | −1.1 (2) | C5—C6—C7—C8 | −173.92 (12) |
C16—O1—C1—C6 | 178.45 (13) | O3—C7—C8—C9 | 4.2 (2) |
O1—C1—C2—C3 | 178.92 (12) | C6—C7—C8—C9 | −175.88 (13) |
C6—C1—C2—C3 | −0.6 (2) | C7—C8—C9—C10 | −179.56 (12) |
C1—C2—C3—C4 | 1.0 (2) | C8—C9—C10—C11 | −12.8 (2) |
C17—O2—C4—C5 | −6.0 (2) | C8—C9—C10—C15 | 166.73 (14) |
C17—O2—C4—C3 | 175.36 (15) | C15—C10—C11—C12 | 0.15 (19) |
C2—C3—C4—O2 | 178.06 (13) | C9—C10—C11—C12 | 179.72 (12) |
C2—C3—C4—C5 | −0.6 (2) | C10—C11—C12—C13 | −0.3 (2) |
O2—C4—C5—C6 | −178.65 (12) | C10—C11—C12—N1 | 179.37 (12) |
C3—C4—C5—C6 | −0.1 (2) | O4—N1—C12—C13 | −168.10 (17) |
O1—C1—C6—C5 | −179.64 (11) | O5—N1—C12—C13 | 10.5 (2) |
C2—C1—C6—C5 | −0.08 (18) | O4—N1—C12—C11 | 12.2 (2) |
O1—C1—C6—C7 | −0.96 (19) | O5—N1—C12—C11 | −169.16 (15) |
C2—C1—C6—C7 | 178.60 (12) | C11—C12—C13—C14 | 0.1 (2) |
C4—C5—C6—C1 | 0.41 (19) | N1—C12—C13—C14 | −179.54 (15) |
C4—C5—C6—C7 | −178.42 (12) | C12—C13—C14—C15 | 0.2 (3) |
C1—C6—C7—O3 | −172.69 (14) | C13—C14—C15—C10 | −0.4 (2) |
C5—C6—C7—O3 | 6.03 (19) | C11—C10—C15—C14 | 0.2 (2) |
C1—C6—C7—C8 | 7.4 (2) | C9—C10—C15—C14 | −179.40 (13) |
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3A···O2i | 0.93 | 2.55 | 3.4773 (18) | 172 |
C8—H8A···O1 | 0.93 | 2.12 | 2.7727 (16) | 126 |
C17—H17A···O5ii | 0.96 | 2.50 | 3.309 (2) | 142 |
Symmetry codes: (i) −x, −y, −z; (ii) x, y−1, z−1. |
Experimental details
Crystal data | |
Chemical formula | C17H15NO5 |
Mr | 313.30 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 7.5015 (5), 7.9962 (5), 13.2468 (8) |
α, β, γ (°) | 86.507 (1), 80.342 (1), 76.332 (1) |
V (Å3) | 760.96 (8) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.41 × 0.38 × 0.13 |
Data collection | |
Diffractometer | Bruker APEX DUO CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2009) |
Tmin, Tmax | 0.960, 0.987 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 16631, 4381, 3195 |
Rint | 0.021 |
(sin θ/λ)max (Å−1) | 0.703 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.048, 0.179, 1.02 |
No. of reflections | 4381 |
No. of parameters | 210 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.25, −0.22 |
Computer programs: APEX2 (Bruker, 2009), SAINT (Bruker, 2009), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
D—H···A | D—H | H···A | D···A | D—H···A |
C3—H3A···O2i | 0.9300 | 2.5500 | 3.4773 (18) | 172.00 |
C8—H8A···O1 | 0.9300 | 2.1200 | 2.7727 (16) | 126.00 |
C17—H17A···O5ii | 0.9600 | 2.5000 | 3.309 (2) | 142.00 |
Symmetry codes: (i) −x, −y, −z; (ii) x, y−1, z−1. |
Footnotes
‡Thomson Reuters ResearcherID: A-3561-2009.
Acknowledgements
HKF and TSC thank Universiti Sains Malaysia (USM) for a Research University Grant (No. 1001/PFIZIK/811160). TSC thanks the Malaysian Government and USM for the award of the post of Research Officer under a Research University Grant (No. 1001/PSKBP/8630013). BN thanks UGC-New Delhi, Government of India, for financial assistance for the purchase of chemicals through a BSR one-off grant.
References
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Chalcones can be easily obtained from the Claisen–Schmidt reaction of aromatic aldehydes and aromatic ketones. Chalcones have been reported to possess many useful properties including anti-inflammatory, antimicrobial, antifungal, antioxidant, cytotoxic, antitumour and anticancer activities (Dimmock et al., 1999). The basic skeleton of chalcones which possess the α,β-unsaturated carbonyl group is a useful synthone for the synthesis of various biodynamic cyclic derivatives such as pyrazoline, benzodiazepine and cyclohexenone derivatives (Samshuddin et al., 2010; Fun et al., 2010a,b; Jasinski et al., 2010; Baktır et al., 2011a,b). The crystal structures of some related chalcones which contain the nitro and methoxy groups viz: (2E)-3-(4-methylphenyl)-1-(3-nitrophenyl)prop-2-en-1-one (Jasinski et al., 2008), (2E)-3-(2-chlorophenyl)-1-(3-nitrophenyl)prop-2-en-1-one (Sarojini et al., 2007) and (E)-3-(4-methoxyphenyl)-1-(3-nitrophenyl)prop-2-en-1-one (Ma, 2007) have been reported. In view of the importance of chalcones, the crystal structure of the title compound is reported here.
The molecular structure of the title compound is shown in Fig. 1. The benzene rings (C1–C6 and C10–C15) make a dihedral angle of 6.45 (7)° with each other. Bond lengths (Allen et al., 1987) and angles are within normal ranges and are comparable to related structures (Jasinski et al., 2008; Sarojini et al., 2007; Ma, 2007). The molecular structure is stabilized by an intramolecular C8—H8A···O1 hydrogen bond (Table 1) which generates an S(6) ring motif (Fig. 1; Bernstein et al., 1995).
In the crystal structure (Fig. 2), the molecules are interconnected by C3—H3A···O2 hydrogen bonds (Table 1), forming a dimer with an R22(8) ring motif. These dimers are further linked by intermolecular C17—H17A···O5 hydrogen bonds into an infinite chains along the [011] direction.