organic compounds
(1E,4E)-1,5-Bis(2,4,6-trimethoxyphenyl)penta-1,4-dien-3-one
aCrystal Materials Research Unit, Department of Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand, bDepartment of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla 90112, Thailand, and cX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia
*Correspondence e-mail: suchada.c@psu.ac.th
There are two crystallographically independent molecules in the 23H26O7. The molecules are unsymmetrical and almost planar: the dihedral angle between two benzene rings is 1.04 (7)° in one molecule and 2.31 (7)° in the other. The central penta-1,4-dien-3-one fragment makes dihedral angles of 7.61 (7) and 6.82 (7)° with the two adjacent benzene rings in one molecule, while the corresponding values are 7.85 (7) and 9.42 (6)° in the other. In both molecules, the three methoxy groups of the two 2,4,6-trimethoxyphenyl units are coplanar with the attached benzene rings [C—O—C—C- torsion angles of −1.5 (2), −7.2 (2) and 4.1 (2)° in one molecule and −0.7 (2), −5.5 (2) and −0.6 (2)° in the other]. The molecular conformations are stabilized by weak intramolecular C—H⋯O interactions generating two S(6) ring motifs. In the crystal, molecules are linked by weak intermolecular C—H⋯O interactions into zigzag chains parallel to the c axis. The is further stabilized by C—H⋯π interactions and π–π interactions with centroid–centroid distances of 3.6433 (8) Å.
of the title bischalcone derivative, CRelated literature
For bond-length data, see: Allen et al. (1987). For hydrogen-bond motifs, see: Bernstein et al. (1995). For related structures, see: Fun et al. (2010); Harrison et al. (2006). For background to and applications of bischalcones, see: Gomes et al. (2009); Lee et al. (2009); Quincoces et al. (2008); Uchida et al. (1998). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2005); cell SAINT (Bruker, 2005); 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
https://doi.org/10.1107/S1600536810049299/rz2523sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810049299/rz2523Isup2.hkl
The title compound was synthesized by dissolving the 2,4,6-trimethoxybenzaldehyde (0.5 g, 2.55 mmol) in acetone (50 ml). A NaOH 50% aqueous solution (2 ml) was then added and, after stirring at room temperature for 1h, the resulting yellow solid was collected by filtration, washed with distilled water and dried. Pale yellow block-shaped single crystals of the title compound suitable for x-ray
were recrystalized from ethanol by the slow evaporation of the solvent at room temperature after a week. M. p. 494–495 K.All H atoms were positioned geometrically and allowed to ride on their parent atoms, with d(C—H) = 0.93 Å for aromatic and 0.96 Å for CH3 atoms. The Uiso values were constrained to be 1.5Ueq of the
for methyl H atoms and 1.2Ueq for the remaining H atoms. A rotating group model was used for the methyl groups. The highest residual electron density peak is located at 0.70 Å from C12B and the deepest hole is located at 1.24 Å from C13B.Bischalcone is an important class of compounds due to their variety of properties such as non-linear optical (Uchida et al., 1998) and fluorescence properties (Gomes et al., 2009) and activities involving anti-inflammatory, antioxidant and anti-tyrosinase activities (Lee et al., 2009) and cytotoxic activities (Quincoces et al., 2008). We have previously reported the
of (1E,4E)-1,5-bis(2,4,5-trimethoxyphenyl)penta-1,4-dien-3-one (I) (Fun et al., 2010). The title bischalcone (II) was synthesized in order to study the effect of the positions of the trimethoxy substituents to its fluorescence property and anti-tyrosinase activity. Our anti-tyrosinase activity testing showed that the title bischacone possesses anti-tyrosinase activity. We report herein the of (II).There are two crystallograpich independent molecules (A and B) in the π interactions in (II) than in (I).
of (II) (Fig. 1) with the same conformation but with slight differences in bond angles. The molecular structure of (II) is unsymmetrical and almost planar. The dihedral angle between the C1–C6 and C12–C17 benzene rings is 1.04 (7)° in molecule A whereas it is 2.31 (7)° in molecule B. The central penta-1,4-dien-3-one unit (C7–C11/O1) is planar with r.m.s. of 0.0124 (1) and 0.0433 (1) Å for molecule A and B, respectively. This unit makes a dihedral angles of 7.61 (7) and 6.82 (7)° with the two adjacent C1–C6 and C12–C17 benzene rings, respectively, in molecule A whereas the corresponding values are 7.85 (7) and 9.42 (6)° in molecule B. The three methoxy groups on the C1–C6 benzene ring are planarly attached, with the C18–O2–C1–C2, C19–O3–C3–C2 and C20–O4–C5–C4 torsion angles of -1.5 (2), -7.2 (2) and 4.1 (2)° in molecule A and -0.7 (2), -5.5 (2) and -0.6 (2)° in molecule B. The same orientation is observed for the three methoxy groups on the C12–C17 benzene ring as indicated by the torsion angles C21–O5–C13–C14, C22–O6–C15–C14 and C23–O7–C17–C16 of -0.1 (2), -0.7 (2) and 0.8 (2)°, respectively, for molecule A and the corresponding values of -0.9 (2), 1.6 (2) and -4.9 (2)° for molecule B. In each molecule, intramolecular C8A—H8AA···O4A and C10A—H10A···O5A [in molecule A]; C8B—H8BA···O4B and C10B—H10B···O5B [in molecule B] weak interactions (Table 1, Fig. 1) generate S(6) ring motifs (Bernstein et al., 1995). The bond distances are in normal ranges (Allen et al., 1987) and are comparable with those of related structures (Fun et al., 2010; Harrison et al., 2006). However there are less C—H···O weak interactions but more C—H···In the crystal packing (Fig. 2), the molecules are linked by intermolecular C—H···O weak interactions (Table 1) into zigzag chains along the c axis. The crystal is stabilized by intermolecular C—H···O weak interactions and C—H···π interactions (Table 1). π–π interactions are observed with Cg1···Cg3i = 3.6433 (8) Å (symmetry code: (i) x, 1/2 - y, -1/2 + z; Cg1 and Cg3 are the centroids of the C1A–C6A and C12B–C17B rings, respectively).
For bond-length data, see: Allen et al. (1987). For hydrogen-bond motifs, see: Bernstein et al. (1995). For related structures, see: Fun et al. (2010); Harrison et al. (2006). For background to and applications of bischalcones, see: Gomes et al. (2009); Lee et al. (2009); Quincoces et al. (2008); Uchida et al. (1998). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986).
Data collection: APEX2 (Bruker, 2005); cell
SAINT (Bruker, 2005); data reduction: SAINT (Bruker, 2005); 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).Fig. 1. The molecular structure of the title compound, showing 50% probability displacement ellipsoids and the atom-numbering scheme. Intramolecular C—H···O interactions are shown as dashed lines. | |
Fig. 2. The crystal packing of the title compound showing the zigzag chains along the c axis. Hydrogen bonds are shown as dashed lines. |
C23H26O7 | F(000) = 1760 |
Mr = 414.44 | Dx = 1.343 Mg m−3 |
Monoclinic, P21/c | Melting point = 494–495 K |
Hall symbol: -P 2ybc | Mo Kα radiation, λ = 0.71073 Å |
a = 15.7417 (2) Å | Cell parameters from 10908 reflections |
b = 15.1192 (2) Å | θ = 2.1–29.0° |
c = 19.4803 (3) Å | µ = 0.10 mm−1 |
β = 117.827 (1)° | T = 100 K |
V = 4100.21 (11) Å3 | Block, pale yellow |
Z = 8 | 0.39 × 0.32 × 0.17 mm |
Bruker APEXII DUO CCD area-detector diffractometer | 10908 independent reflections |
Radiation source: sealed tube | 7903 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.032 |
φ and ω scans | θmax = 29.0°, θmin = 2.1° |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | h = −20→21 |
Tmin = 0.963, Tmax = 0.983 | k = −20→18 |
50384 measured reflections | l = −26→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)] = 0.052 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.139 | H-atom parameters constrained |
S = 1.04 | w = 1/[σ2(Fo2) + (0.0631P)2 + 1.5299P] where P = (Fo2 + 2Fc2)/3 |
10908 reflections | (Δ/σ)max = 0.001 |
553 parameters | Δρmax = 0.36 e Å−3 |
0 restraints | Δρmin = −0.24 e Å−3 |
C23H26O7 | V = 4100.21 (11) Å3 |
Mr = 414.44 | Z = 8 |
Monoclinic, P21/c | Mo Kα radiation |
a = 15.7417 (2) Å | µ = 0.10 mm−1 |
b = 15.1192 (2) Å | T = 100 K |
c = 19.4803 (3) Å | 0.39 × 0.32 × 0.17 mm |
β = 117.827 (1)° |
Bruker APEXII DUO CCD area-detector diffractometer | 10908 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2005) | 7903 reflections with I > 2σ(I) |
Tmin = 0.963, Tmax = 0.983 | Rint = 0.032 |
50384 measured reflections |
R[F2 > 2σ(F2)] = 0.052 | 0 restraints |
wR(F2) = 0.139 | H-atom parameters constrained |
S = 1.04 | Δρmax = 0.36 e Å−3 |
10908 reflections | Δρmin = −0.24 e Å−3 |
553 parameters |
Experimental. The crystal was placed in the cold stream of an Oxford Cryosystems Cobra open-flow nitrogen cryostat (Cosier & Glazer, 1986) operating at 100.0 (1) K. |
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 | ||
O1A | 0.17578 (9) | 0.23957 (10) | −0.12657 (6) | 0.0395 (3) | |
O2A | 0.45629 (7) | 0.37966 (7) | −0.07200 (6) | 0.0219 (2) | |
O3A | 0.72990 (7) | 0.41499 (7) | 0.18177 (6) | 0.0257 (2) | |
O4A | 0.43772 (7) | 0.29181 (7) | 0.15211 (5) | 0.0209 (2) | |
O5A | −0.05667 (7) | 0.12267 (7) | −0.05942 (6) | 0.0218 (2) | |
O6A | −0.07167 (8) | 0.03212 (8) | 0.17332 (6) | 0.0287 (3) | |
O7A | 0.20935 (7) | 0.16050 (7) | 0.18551 (6) | 0.0233 (2) | |
C1A | 0.50181 (11) | 0.37297 (9) | 0.00690 (8) | 0.0176 (3) | |
C2A | 0.59599 (11) | 0.40105 (9) | 0.05208 (9) | 0.0196 (3) | |
H2AA | 0.6305 | 0.4261 | 0.0292 | 0.023* | |
C3A | 0.63756 (10) | 0.39085 (10) | 0.13221 (9) | 0.0199 (3) | |
C4A | 0.58625 (10) | 0.35517 (10) | 0.16765 (8) | 0.0200 (3) | |
H4AA | 0.6148 | 0.3497 | 0.2214 | 0.024* | |
C5A | 0.49247 (10) | 0.32789 (9) | 0.12218 (8) | 0.0180 (3) | |
C6A | 0.44650 (10) | 0.33541 (9) | 0.03973 (8) | 0.0169 (3) | |
C7A | 0.35023 (10) | 0.30407 (9) | −0.01164 (8) | 0.0180 (3) | |
H7AA | 0.3314 | 0.3105 | −0.0643 | 0.022* | |
C8A | 0.28416 (10) | 0.26743 (10) | 0.00458 (8) | 0.0191 (3) | |
H8AA | 0.2963 | 0.2625 | 0.0559 | 0.023* | |
C9A | 0.19240 (11) | 0.23482 (10) | −0.05818 (8) | 0.0209 (3) | |
C10A | 0.12089 (11) | 0.19400 (10) | −0.04001 (8) | 0.0204 (3) | |
H10A | 0.0631 | 0.1753 | −0.0809 | 0.024* | |
C11A | 0.13474 (10) | 0.18232 (9) | 0.03281 (8) | 0.0175 (3) | |
H11A | 0.1931 | 0.2040 | 0.0708 | 0.021* | |
C12A | 0.07555 (10) | 0.14215 (9) | 0.06315 (8) | 0.0177 (3) | |
C13A | −0.01944 (10) | 0.11210 (9) | 0.01869 (8) | 0.0183 (3) | |
C14A | −0.07145 (11) | 0.07451 (10) | 0.05295 (8) | 0.0202 (3) | |
H14A | −0.1340 | 0.0547 | 0.0226 | 0.024* | |
C15A | −0.02790 (11) | 0.06729 (10) | 0.13332 (9) | 0.0221 (3) | |
C16A | 0.06571 (11) | 0.09625 (10) | 0.17972 (9) | 0.0224 (3) | |
H16A | 0.0937 | 0.0912 | 0.2334 | 0.027* | |
C17A | 0.11655 (10) | 0.13254 (10) | 0.14487 (8) | 0.0193 (3) | |
C18A | 0.50745 (11) | 0.41912 (10) | −0.10866 (9) | 0.0235 (3) | |
H18A | 0.4664 | 0.4221 | −0.1637 | 0.035* | |
H18B | 0.5630 | 0.3840 | −0.0983 | 0.035* | |
H18C | 0.5273 | 0.4777 | −0.0886 | 0.035* | |
C19A | 0.78857 (12) | 0.44273 (12) | 0.14764 (10) | 0.0325 (4) | |
H19A | 0.8528 | 0.4535 | 0.1878 | 0.049* | |
H19B | 0.7627 | 0.4961 | 0.1185 | 0.049* | |
H19C | 0.7896 | 0.3973 | 0.1136 | 0.049* | |
C20A | 0.47734 (12) | 0.28718 (12) | 0.23484 (8) | 0.0264 (3) | |
H20A | 0.4308 | 0.2620 | 0.2480 | 0.040* | |
H20B | 0.4938 | 0.3456 | 0.2564 | 0.040* | |
H20C | 0.5339 | 0.2509 | 0.2556 | 0.040* | |
C21A | −0.15303 (11) | 0.09395 (10) | −0.10841 (9) | 0.0229 (3) | |
H21A | −0.1695 | 0.1054 | −0.1616 | 0.034* | |
H21B | −0.1962 | 0.1255 | −0.0951 | 0.034* | |
H21C | −0.1580 | 0.0317 | −0.1013 | 0.034* | |
C22A | −0.16834 (11) | 0.00175 (11) | 0.13032 (10) | 0.0271 (3) | |
H22A | −0.1905 | −0.0197 | 0.1655 | 0.041* | |
H22B | −0.1710 | −0.0451 | 0.0962 | 0.041* | |
H22C | −0.2085 | 0.0497 | 0.1004 | 0.041* | |
C23A | 0.25648 (12) | 0.15076 (12) | 0.26804 (8) | 0.0272 (4) | |
H23A | 0.3190 | 0.1774 | 0.2894 | 0.041* | |
H23B | 0.2629 | 0.0890 | 0.2811 | 0.041* | |
H23C | 0.2192 | 0.1793 | 0.2890 | 0.041* | |
O1B | 0.68800 (7) | 0.20303 (8) | 0.36386 (6) | 0.0241 (2) | |
O2B | 0.99141 (7) | 0.09844 (7) | 0.41753 (6) | 0.0225 (2) | |
O3B | 1.26319 (8) | 0.06825 (8) | 0.67341 (6) | 0.0287 (3) | |
O4B | 0.96545 (7) | 0.18131 (7) | 0.63905 (6) | 0.0223 (2) | |
O5B | 0.48221 (7) | 0.36335 (7) | 0.43616 (6) | 0.0209 (2) | |
O6B | 0.47137 (8) | 0.44271 (8) | 0.67297 (6) | 0.0260 (2) | |
O7B | 0.75115 (7) | 0.31918 (7) | 0.67890 (6) | 0.0211 (2) | |
C1B | 1.03565 (10) | 0.10545 (10) | 0.49647 (8) | 0.0185 (3) | |
C2B | 1.13074 (10) | 0.07922 (10) | 0.54267 (9) | 0.0206 (3) | |
H2BA | 1.1665 | 0.0549 | 0.5205 | 0.025* | |
C3B | 1.17063 (10) | 0.09028 (10) | 0.62243 (9) | 0.0213 (3) | |
C4B | 1.11777 (11) | 0.12564 (10) | 0.65642 (8) | 0.0220 (3) | |
H4BA | 1.1457 | 0.1329 | 0.7100 | 0.026* | |
C5B | 1.02313 (10) | 0.14997 (9) | 0.60976 (8) | 0.0184 (3) | |
C6B | 0.97838 (10) | 0.14116 (9) | 0.52777 (8) | 0.0172 (3) | |
C7B | 0.87935 (10) | 0.16500 (9) | 0.47616 (8) | 0.0169 (3) | |
H7BA | 0.8555 | 0.1456 | 0.4252 | 0.020* | |
C8B | 0.81720 (10) | 0.21120 (9) | 0.49162 (8) | 0.0174 (3) | |
H8BA | 0.8372 | 0.2320 | 0.5418 | 0.021* | |
C9B | 0.71850 (10) | 0.22977 (9) | 0.43148 (8) | 0.0164 (3) | |
C10B | 0.65299 (10) | 0.28005 (9) | 0.45157 (8) | 0.0174 (3) | |
H10B | 0.5947 | 0.2990 | 0.4115 | 0.021* | |
C11B | 0.67345 (10) | 0.29988 (9) | 0.52518 (8) | 0.0163 (3) | |
H11B | 0.7353 | 0.2846 | 0.5620 | 0.020* | |
C12B | 0.61648 (10) | 0.34076 (9) | 0.55742 (8) | 0.0162 (3) | |
C13B | 0.52085 (10) | 0.37092 (9) | 0.51463 (8) | 0.0169 (3) | |
C14B | 0.46987 (10) | 0.40590 (9) | 0.55087 (8) | 0.0190 (3) | |
H14B | 0.4072 | 0.4259 | 0.5217 | 0.023* | |
C15B | 0.51478 (11) | 0.41016 (9) | 0.63141 (9) | 0.0195 (3) | |
C16B | 0.60879 (11) | 0.38162 (10) | 0.67653 (8) | 0.0194 (3) | |
H16B | 0.6376 | 0.3849 | 0.7304 | 0.023* | |
C17B | 0.65853 (10) | 0.34824 (9) | 0.63965 (8) | 0.0171 (3) | |
C18B | 1.04507 (11) | 0.06389 (11) | 0.38133 (9) | 0.0248 (3) | |
H18D | 1.0042 | 0.0593 | 0.3264 | 0.037* | |
H18E | 1.0694 | 0.0064 | 0.4021 | 0.037* | |
H18F | 1.0978 | 0.1027 | 0.3911 | 0.037* | |
C19B | 1.31903 (11) | 0.02436 (11) | 0.64289 (10) | 0.0280 (4) | |
H19D | 1.3822 | 0.0125 | 0.6843 | 0.042* | |
H19E | 1.3238 | 0.0615 | 0.6049 | 0.042* | |
H19F | 1.2885 | −0.0303 | 0.6191 | 0.042* | |
C20B | 1.00518 (12) | 0.18825 (12) | 0.72165 (8) | 0.0293 (4) | |
H20D | 0.9576 | 0.2116 | 0.7344 | 0.044* | |
H20E | 1.0597 | 0.2271 | 0.7413 | 0.044* | |
H20F | 1.0249 | 0.1308 | 0.7446 | 0.044* | |
C21B | 0.38459 (10) | 0.39154 (10) | 0.38923 (8) | 0.0226 (3) | |
H21D | 0.3672 | 0.3838 | 0.3354 | 0.034* | |
H21E | 0.3787 | 0.4528 | 0.3992 | 0.034* | |
H21G | 0.3427 | 0.3568 | 0.4018 | 0.034* | |
C22B | 0.37374 (12) | 0.47159 (12) | 0.63068 (10) | 0.0315 (4) | |
H22D | 0.3517 | 0.4916 | 0.6664 | 0.047* | |
H22G | 0.3344 | 0.4233 | 0.6006 | 0.047* | |
H22E | 0.3697 | 0.5192 | 0.5967 | 0.047* | |
C23B | 0.80039 (12) | 0.33050 (12) | 0.76164 (8) | 0.0273 (4) | |
H23G | 0.8652 | 0.3097 | 0.7818 | 0.041* | |
H23D | 0.7680 | 0.2974 | 0.7845 | 0.041* | |
H23E | 0.8009 | 0.3920 | 0.7740 | 0.041* |
U11 | U22 | U33 | U12 | U13 | U23 | |
O1A | 0.0300 (7) | 0.0677 (9) | 0.0156 (5) | −0.0216 (6) | 0.0063 (5) | 0.0002 (6) |
O2A | 0.0209 (6) | 0.0262 (6) | 0.0191 (5) | −0.0032 (4) | 0.0099 (4) | 0.0011 (4) |
O3A | 0.0156 (5) | 0.0298 (6) | 0.0281 (6) | −0.0049 (4) | 0.0072 (5) | −0.0042 (5) |
O4A | 0.0176 (5) | 0.0289 (6) | 0.0148 (5) | −0.0008 (4) | 0.0064 (4) | 0.0027 (4) |
O5A | 0.0171 (5) | 0.0276 (6) | 0.0170 (5) | −0.0012 (4) | 0.0049 (4) | −0.0006 (4) |
O6A | 0.0247 (6) | 0.0382 (7) | 0.0270 (6) | −0.0021 (5) | 0.0151 (5) | 0.0055 (5) |
O7A | 0.0178 (5) | 0.0333 (6) | 0.0154 (5) | −0.0011 (4) | 0.0049 (4) | 0.0006 (4) |
C1A | 0.0195 (7) | 0.0141 (7) | 0.0196 (7) | 0.0018 (5) | 0.0094 (6) | −0.0001 (5) |
C2A | 0.0194 (7) | 0.0167 (7) | 0.0258 (7) | 0.0003 (6) | 0.0133 (6) | −0.0008 (6) |
C3A | 0.0143 (7) | 0.0175 (7) | 0.0252 (7) | 0.0003 (6) | 0.0069 (6) | −0.0035 (6) |
C4A | 0.0179 (7) | 0.0214 (7) | 0.0174 (7) | 0.0017 (6) | 0.0055 (6) | −0.0003 (5) |
C5A | 0.0173 (7) | 0.0162 (7) | 0.0197 (7) | 0.0024 (5) | 0.0080 (6) | 0.0006 (5) |
C6A | 0.0155 (7) | 0.0161 (7) | 0.0175 (7) | 0.0012 (5) | 0.0065 (6) | −0.0002 (5) |
C7A | 0.0185 (7) | 0.0174 (7) | 0.0153 (6) | 0.0021 (6) | 0.0056 (6) | 0.0005 (5) |
C8A | 0.0183 (7) | 0.0208 (7) | 0.0147 (6) | −0.0002 (6) | 0.0047 (6) | −0.0002 (5) |
C9A | 0.0208 (8) | 0.0220 (7) | 0.0164 (7) | −0.0005 (6) | 0.0058 (6) | 0.0019 (6) |
C10A | 0.0166 (7) | 0.0217 (7) | 0.0202 (7) | −0.0015 (6) | 0.0064 (6) | −0.0011 (6) |
C11A | 0.0162 (7) | 0.0155 (7) | 0.0185 (7) | 0.0015 (5) | 0.0061 (6) | −0.0007 (5) |
C12A | 0.0171 (7) | 0.0157 (7) | 0.0193 (7) | 0.0023 (5) | 0.0078 (6) | 0.0000 (5) |
C13A | 0.0190 (7) | 0.0160 (7) | 0.0185 (7) | 0.0042 (6) | 0.0076 (6) | −0.0001 (5) |
C14A | 0.0172 (7) | 0.0190 (7) | 0.0236 (7) | 0.0002 (6) | 0.0088 (6) | −0.0010 (6) |
C15A | 0.0226 (8) | 0.0208 (8) | 0.0264 (8) | 0.0029 (6) | 0.0145 (7) | 0.0024 (6) |
C16A | 0.0235 (8) | 0.0252 (8) | 0.0184 (7) | 0.0038 (6) | 0.0099 (6) | 0.0014 (6) |
C17A | 0.0177 (7) | 0.0184 (7) | 0.0200 (7) | 0.0027 (6) | 0.0074 (6) | −0.0008 (5) |
C18A | 0.0253 (8) | 0.0243 (8) | 0.0257 (8) | 0.0001 (6) | 0.0158 (7) | 0.0025 (6) |
C19A | 0.0198 (8) | 0.0420 (10) | 0.0378 (9) | −0.0093 (7) | 0.0152 (7) | −0.0138 (8) |
C20A | 0.0226 (8) | 0.0380 (9) | 0.0156 (7) | −0.0009 (7) | 0.0064 (6) | 0.0028 (6) |
C21A | 0.0188 (8) | 0.0230 (8) | 0.0218 (7) | −0.0007 (6) | 0.0052 (6) | −0.0039 (6) |
C22A | 0.0235 (8) | 0.0286 (8) | 0.0330 (8) | −0.0006 (7) | 0.0162 (7) | 0.0025 (7) |
C23A | 0.0224 (8) | 0.0403 (10) | 0.0166 (7) | −0.0001 (7) | 0.0072 (6) | 0.0002 (6) |
O1B | 0.0171 (5) | 0.0371 (6) | 0.0154 (5) | 0.0035 (5) | 0.0053 (4) | −0.0032 (4) |
O2B | 0.0181 (5) | 0.0317 (6) | 0.0179 (5) | 0.0030 (4) | 0.0085 (4) | −0.0004 (4) |
O3B | 0.0161 (5) | 0.0345 (7) | 0.0276 (6) | 0.0042 (5) | 0.0036 (5) | 0.0039 (5) |
O4B | 0.0188 (5) | 0.0312 (6) | 0.0133 (5) | 0.0019 (4) | 0.0044 (4) | −0.0025 (4) |
O5B | 0.0158 (5) | 0.0258 (6) | 0.0169 (5) | 0.0038 (4) | 0.0042 (4) | 0.0001 (4) |
O6B | 0.0224 (6) | 0.0326 (6) | 0.0266 (6) | 0.0046 (5) | 0.0144 (5) | −0.0028 (5) |
O7B | 0.0169 (5) | 0.0304 (6) | 0.0142 (5) | 0.0040 (4) | 0.0059 (4) | 0.0000 (4) |
C1B | 0.0180 (7) | 0.0176 (7) | 0.0190 (7) | −0.0025 (6) | 0.0081 (6) | 0.0008 (5) |
C2B | 0.0165 (7) | 0.0186 (7) | 0.0267 (8) | −0.0001 (6) | 0.0101 (6) | 0.0022 (6) |
C3B | 0.0137 (7) | 0.0190 (7) | 0.0259 (8) | −0.0006 (6) | 0.0046 (6) | 0.0042 (6) |
C4B | 0.0190 (8) | 0.0229 (8) | 0.0172 (7) | −0.0018 (6) | 0.0026 (6) | 0.0009 (6) |
C5B | 0.0171 (7) | 0.0170 (7) | 0.0191 (7) | −0.0017 (6) | 0.0070 (6) | −0.0001 (5) |
C6B | 0.0153 (7) | 0.0158 (7) | 0.0179 (7) | −0.0023 (5) | 0.0057 (6) | 0.0007 (5) |
C7B | 0.0155 (7) | 0.0194 (7) | 0.0141 (6) | −0.0038 (5) | 0.0054 (5) | 0.0006 (5) |
C8B | 0.0176 (7) | 0.0185 (7) | 0.0138 (6) | −0.0021 (6) | 0.0054 (6) | −0.0005 (5) |
C9B | 0.0170 (7) | 0.0174 (7) | 0.0151 (6) | −0.0026 (5) | 0.0079 (6) | 0.0008 (5) |
C10B | 0.0144 (7) | 0.0186 (7) | 0.0170 (6) | 0.0006 (5) | 0.0055 (6) | 0.0015 (5) |
C11B | 0.0150 (7) | 0.0147 (7) | 0.0183 (7) | 0.0000 (5) | 0.0070 (6) | 0.0015 (5) |
C12B | 0.0178 (7) | 0.0145 (7) | 0.0172 (6) | −0.0008 (5) | 0.0089 (6) | −0.0001 (5) |
C13B | 0.0180 (7) | 0.0143 (7) | 0.0167 (6) | −0.0014 (5) | 0.0066 (6) | −0.0005 (5) |
C14B | 0.0151 (7) | 0.0168 (7) | 0.0245 (7) | 0.0006 (5) | 0.0089 (6) | −0.0006 (6) |
C15B | 0.0218 (8) | 0.0167 (7) | 0.0258 (7) | −0.0012 (6) | 0.0159 (6) | −0.0017 (6) |
C16B | 0.0212 (8) | 0.0206 (7) | 0.0175 (7) | −0.0001 (6) | 0.0098 (6) | −0.0006 (5) |
C17B | 0.0169 (7) | 0.0166 (7) | 0.0173 (6) | −0.0006 (5) | 0.0076 (6) | 0.0006 (5) |
C18B | 0.0238 (8) | 0.0286 (8) | 0.0273 (8) | 0.0000 (6) | 0.0164 (7) | −0.0014 (6) |
C19B | 0.0163 (8) | 0.0273 (9) | 0.0360 (9) | 0.0032 (6) | 0.0084 (7) | 0.0064 (7) |
C20B | 0.0307 (9) | 0.0356 (9) | 0.0151 (7) | 0.0042 (7) | 0.0053 (7) | −0.0030 (6) |
C21B | 0.0168 (7) | 0.0251 (8) | 0.0208 (7) | 0.0016 (6) | 0.0045 (6) | 0.0028 (6) |
C22B | 0.0232 (9) | 0.0388 (10) | 0.0357 (9) | 0.0053 (7) | 0.0165 (7) | −0.0035 (7) |
C23B | 0.0224 (8) | 0.0412 (10) | 0.0152 (7) | 0.0045 (7) | 0.0063 (6) | −0.0010 (6) |
O1A—C9A | 1.2341 (17) | O1B—C9B | 1.2404 (16) |
O2A—C1A | 1.3631 (17) | O2B—C1B | 1.3643 (17) |
O2A—C18A | 1.4324 (17) | O2B—C18B | 1.4282 (18) |
O3A—C3A | 1.3668 (17) | O3B—C3B | 1.3672 (18) |
O3A—C19A | 1.430 (2) | O3B—C19B | 1.433 (2) |
O4A—C5A | 1.3600 (17) | O4B—C5B | 1.3631 (18) |
O4A—C20A | 1.4327 (16) | O4B—C20B | 1.4324 (17) |
O5A—C13A | 1.3607 (16) | O5B—C13B | 1.3607 (16) |
O5A—C21A | 1.4314 (17) | O5B—C21B | 1.4379 (17) |
O6A—C15A | 1.3661 (18) | O6B—C15B | 1.3716 (17) |
O6A—C22A | 1.4277 (19) | O6B—C22B | 1.4316 (19) |
O7A—C17A | 1.3637 (17) | O7B—C17B | 1.3648 (17) |
O7A—C23A | 1.4294 (17) | O7B—C23B | 1.4357 (17) |
C1A—C2A | 1.391 (2) | C1B—C2B | 1.396 (2) |
C1A—C6A | 1.418 (2) | C1B—C6B | 1.410 (2) |
C2A—C3A | 1.391 (2) | C2B—C3B | 1.388 (2) |
C2A—H2AA | 0.9300 | C2B—H2BA | 0.9300 |
C3A—C4A | 1.393 (2) | C3B—C4B | 1.390 (2) |
C4A—C5A | 1.383 (2) | C4B—C5B | 1.384 (2) |
C4A—H4AA | 0.9300 | C4B—H4BA | 0.9300 |
C5A—C6A | 1.4250 (19) | C5B—C6B | 1.4194 (19) |
C6A—C7A | 1.451 (2) | C6B—C7B | 1.4518 (19) |
C7A—C8A | 1.340 (2) | C7B—C8B | 1.346 (2) |
C7A—H7AA | 0.9300 | C7B—H7BA | 0.9300 |
C8A—C9A | 1.475 (2) | C8B—C9B | 1.4717 (19) |
C8A—H8AA | 0.9300 | C8B—H8BA | 0.9300 |
C9A—C10A | 1.465 (2) | C9B—C10B | 1.474 (2) |
C10A—C11A | 1.342 (2) | C10B—C11B | 1.3484 (19) |
C10A—H10A | 0.9300 | C10B—H10B | 0.9300 |
C11A—C12A | 1.449 (2) | C11B—C12B | 1.4514 (19) |
C11A—H11A | 0.9300 | C11B—H11B | 0.9300 |
C12A—C13A | 1.408 (2) | C12B—C13B | 1.413 (2) |
C12A—C17A | 1.4186 (19) | C12B—C17B | 1.4238 (19) |
C13A—C14A | 1.396 (2) | C13B—C14B | 1.397 (2) |
C14A—C15A | 1.390 (2) | C14B—C15B | 1.389 (2) |
C14A—H14A | 0.9300 | C14B—H14B | 0.9300 |
C15A—C16A | 1.392 (2) | C15B—C16B | 1.391 (2) |
C16A—C17A | 1.382 (2) | C16B—C17B | 1.382 (2) |
C16A—H16A | 0.9300 | C16B—H16B | 0.9300 |
C18A—H18A | 0.9600 | C18B—H18D | 0.9600 |
C18A—H18B | 0.9600 | C18B—H18E | 0.9600 |
C18A—H18C | 0.9600 | C18B—H18F | 0.9600 |
C19A—H19A | 0.9600 | C19B—H19D | 0.9600 |
C19A—H19B | 0.9600 | C19B—H19E | 0.9600 |
C19A—H19C | 0.9600 | C19B—H19F | 0.9600 |
C20A—H20A | 0.9600 | C20B—H20D | 0.9600 |
C20A—H20B | 0.9600 | C20B—H20E | 0.9600 |
C20A—H20C | 0.9600 | C20B—H20F | 0.9600 |
C21A—H21A | 0.9600 | C21B—H21D | 0.9600 |
C21A—H21B | 0.9600 | C21B—H21E | 0.9600 |
C21A—H21C | 0.9600 | C21B—H21G | 0.9600 |
C22A—H22A | 0.9600 | C22B—H22D | 0.9600 |
C22A—H22B | 0.9600 | C22B—H22G | 0.9600 |
C22A—H22C | 0.9600 | C22B—H22E | 0.9600 |
C23A—H23A | 0.9600 | C23B—H23G | 0.9600 |
C23A—H23B | 0.9600 | C23B—H23D | 0.9600 |
C23A—H23C | 0.9600 | C23B—H23E | 0.9600 |
C1A—O2A—C18A | 118.11 (11) | C1B—O2B—C18B | 118.46 (12) |
C3A—O3A—C19A | 117.06 (12) | C3B—O3B—C19B | 117.61 (12) |
C5A—O4A—C20A | 118.13 (11) | C5B—O4B—C20B | 117.96 (12) |
C13A—O5A—C21A | 118.64 (11) | C13B—O5B—C21B | 118.29 (11) |
C15A—O6A—C22A | 118.28 (12) | C15B—O6B—C22B | 117.81 (12) |
C17A—O7A—C23A | 118.30 (12) | C17B—O7B—C23B | 117.80 (11) |
O2A—C1A—C2A | 122.34 (13) | O2B—C1B—C2B | 122.27 (13) |
O2A—C1A—C6A | 115.35 (12) | O2B—C1B—C6B | 115.09 (12) |
C2A—C1A—C6A | 122.31 (13) | C2B—C1B—C6B | 122.64 (13) |
C1A—C2A—C3A | 118.70 (13) | C3B—C2B—C1B | 118.43 (14) |
C1A—C2A—H2AA | 120.6 | C3B—C2B—H2BA | 120.8 |
C3A—C2A—H2AA | 120.6 | C1B—C2B—H2BA | 120.8 |
O3A—C3A—C2A | 123.44 (13) | O3B—C3B—C2B | 123.77 (14) |
O3A—C3A—C4A | 115.15 (13) | O3B—C3B—C4B | 114.82 (13) |
C2A—C3A—C4A | 121.41 (13) | C2B—C3B—C4B | 121.41 (13) |
C5A—C4A—C3A | 119.37 (13) | C5B—C4B—C3B | 119.32 (13) |
C5A—C4A—H4AA | 120.3 | C5B—C4B—H4BA | 120.3 |
C3A—C4A—H4AA | 120.3 | C3B—C4B—H4BA | 120.3 |
O4A—C5A—C4A | 123.06 (13) | O4B—C5B—C4B | 122.72 (13) |
O4A—C5A—C6A | 115.16 (12) | O4B—C5B—C6B | 115.21 (12) |
C4A—C5A—C6A | 121.78 (13) | C4B—C5B—C6B | 122.04 (13) |
C1A—C6A—C5A | 116.41 (13) | C1B—C6B—C5B | 116.16 (13) |
C1A—C6A—C7A | 118.89 (12) | C1B—C6B—C7B | 119.47 (13) |
C5A—C6A—C7A | 124.64 (13) | C5B—C6B—C7B | 124.37 (13) |
C8A—C7A—C6A | 130.38 (13) | C8B—C7B—C6B | 129.17 (13) |
C8A—C7A—H7AA | 114.8 | C8B—C7B—H7BA | 115.4 |
C6A—C7A—H7AA | 114.8 | C6B—C7B—H7BA | 115.4 |
C7A—C8A—C9A | 120.69 (13) | C7B—C8B—C9B | 121.91 (13) |
C7A—C8A—H8AA | 119.7 | C7B—C8B—H8BA | 119.0 |
C9A—C8A—H8AA | 119.7 | C9B—C8B—H8BA | 119.0 |
O1A—C9A—C10A | 119.07 (13) | O1B—C9B—C8B | 121.64 (13) |
O1A—C9A—C8A | 120.49 (14) | O1B—C9B—C10B | 118.57 (12) |
C10A—C9A—C8A | 120.42 (12) | C8B—C9B—C10B | 119.77 (12) |
C11A—C10A—C9A | 123.14 (13) | C11B—C10B—C9B | 123.21 (13) |
C11A—C10A—H10A | 118.4 | C11B—C10B—H10B | 118.4 |
C9A—C10A—H10A | 118.4 | C9B—C10B—H10B | 118.4 |
C10A—C11A—C12A | 131.90 (14) | C10B—C11B—C12B | 131.73 (13) |
C10A—C11A—H11A | 114.0 | C10B—C11B—H11B | 114.1 |
C12A—C11A—H11A | 114.0 | C12B—C11B—H11B | 114.1 |
C13A—C12A—C17A | 116.96 (13) | C13B—C12B—C17B | 116.47 (12) |
C13A—C12A—C11A | 125.77 (13) | C13B—C12B—C11B | 125.83 (12) |
C17A—C12A—C11A | 117.27 (13) | C17B—C12B—C11B | 117.65 (12) |
O5A—C13A—C14A | 122.67 (13) | O5B—C13B—C14B | 122.59 (13) |
O5A—C13A—C12A | 115.42 (13) | O5B—C13B—C12B | 115.46 (12) |
C14A—C13A—C12A | 121.91 (13) | C14B—C13B—C12B | 121.95 (13) |
C15A—C14A—C13A | 118.66 (14) | C15B—C14B—C13B | 118.61 (13) |
C15A—C14A—H14A | 120.7 | C15B—C14B—H14B | 120.7 |
C13A—C14A—H14A | 120.7 | C13B—C14B—H14B | 120.7 |
O6A—C15A—C14A | 123.94 (14) | O6B—C15B—C14B | 123.52 (13) |
O6A—C15A—C16A | 114.52 (13) | O6B—C15B—C16B | 114.49 (13) |
C14A—C15A—C16A | 121.54 (14) | C14B—C15B—C16B | 121.99 (13) |
C17A—C16A—C15A | 119.10 (14) | C17B—C16B—C15B | 118.61 (13) |
C17A—C16A—H16A | 120.5 | C17B—C16B—H16B | 120.7 |
C15A—C16A—H16A | 120.5 | C15B—C16B—H16B | 120.7 |
O7A—C17A—C16A | 123.15 (13) | O7B—C17B—C16B | 122.87 (12) |
O7A—C17A—C12A | 115.01 (13) | O7B—C17B—C12B | 114.76 (12) |
C16A—C17A—C12A | 121.83 (14) | C16B—C17B—C12B | 122.37 (13) |
O2A—C18A—H18A | 109.5 | O2B—C18B—H18D | 109.5 |
O2A—C18A—H18B | 109.5 | O2B—C18B—H18E | 109.5 |
H18A—C18A—H18B | 109.5 | H18D—C18B—H18E | 109.5 |
O2A—C18A—H18C | 109.5 | O2B—C18B—H18F | 109.5 |
H18A—C18A—H18C | 109.5 | H18D—C18B—H18F | 109.5 |
H18B—C18A—H18C | 109.5 | H18E—C18B—H18F | 109.5 |
O3A—C19A—H19A | 109.5 | O3B—C19B—H19D | 109.5 |
O3A—C19A—H19B | 109.5 | O3B—C19B—H19E | 109.5 |
H19A—C19A—H19B | 109.5 | H19D—C19B—H19E | 109.5 |
O3A—C19A—H19C | 109.5 | O3B—C19B—H19F | 109.5 |
H19A—C19A—H19C | 109.5 | H19D—C19B—H19F | 109.5 |
H19B—C19A—H19C | 109.5 | H19E—C19B—H19F | 109.5 |
O4A—C20A—H20A | 109.5 | O4B—C20B—H20D | 109.5 |
O4A—C20A—H20B | 109.5 | O4B—C20B—H20E | 109.5 |
H20A—C20A—H20B | 109.5 | H20D—C20B—H20E | 109.5 |
O4A—C20A—H20C | 109.5 | O4B—C20B—H20F | 109.5 |
H20A—C20A—H20C | 109.5 | H20D—C20B—H20F | 109.5 |
H20B—C20A—H20C | 109.5 | H20E—C20B—H20F | 109.5 |
O5A—C21A—H21A | 109.5 | O5B—C21B—H21D | 109.5 |
O5A—C21A—H21B | 109.5 | O5B—C21B—H21E | 109.5 |
H21A—C21A—H21B | 109.5 | H21D—C21B—H21E | 109.5 |
O5A—C21A—H21C | 109.5 | O5B—C21B—H21G | 109.5 |
H21A—C21A—H21C | 109.5 | H21D—C21B—H21G | 109.5 |
H21B—C21A—H21C | 109.5 | H21E—C21B—H21G | 109.5 |
O6A—C22A—H22A | 109.5 | O6B—C22B—H22D | 109.5 |
O6A—C22A—H22B | 109.5 | O6B—C22B—H22G | 109.5 |
H22A—C22A—H22B | 109.5 | H22D—C22B—H22G | 109.5 |
O6A—C22A—H22C | 109.5 | O6B—C22B—H22E | 109.5 |
H22A—C22A—H22C | 109.5 | H22D—C22B—H22E | 109.5 |
H22B—C22A—H22C | 109.5 | H22G—C22B—H22E | 109.5 |
O7A—C23A—H23A | 109.5 | O7B—C23B—H23G | 109.5 |
O7A—C23A—H23B | 109.5 | O7B—C23B—H23D | 109.5 |
H23A—C23A—H23B | 109.5 | H23G—C23B—H23D | 109.5 |
O7A—C23A—H23C | 109.5 | O7B—C23B—H23E | 109.5 |
H23A—C23A—H23C | 109.5 | H23G—C23B—H23E | 109.5 |
H23B—C23A—H23C | 109.5 | H23D—C23B—H23E | 109.5 |
C18A—O2A—C1A—C2A | −1.5 (2) | C18B—O2B—C1B—C2B | −0.7 (2) |
C18A—O2A—C1A—C6A | 178.45 (12) | C18B—O2B—C1B—C6B | 179.23 (13) |
O2A—C1A—C2A—C3A | −179.22 (13) | O2B—C1B—C2B—C3B | 178.78 (13) |
C6A—C1A—C2A—C3A | 0.8 (2) | C6B—C1B—C2B—C3B | −1.1 (2) |
C19A—O3A—C3A—C2A | −7.2 (2) | C19B—O3B—C3B—C2B | −5.5 (2) |
C19A—O3A—C3A—C4A | 173.26 (13) | C19B—O3B—C3B—C4B | 174.68 (13) |
C1A—C2A—C3A—O3A | 179.02 (13) | C1B—C2B—C3B—O3B | −179.09 (14) |
C1A—C2A—C3A—C4A | −1.4 (2) | C1B—C2B—C3B—C4B | 0.7 (2) |
O3A—C3A—C4A—C5A | −179.30 (13) | O3B—C3B—C4B—C5B | −179.89 (13) |
C2A—C3A—C4A—C5A | 1.1 (2) | C2B—C3B—C4B—C5B | 0.3 (2) |
C20A—O4A—C5A—C4A | 4.1 (2) | C20B—O4B—C5B—C4B | −0.6 (2) |
C20A—O4A—C5A—C6A | −176.28 (13) | C20B—O4B—C5B—C6B | 177.44 (13) |
C3A—C4A—C5A—O4A | 179.50 (13) | C3B—C4B—C5B—O4B | 176.94 (13) |
C3A—C4A—C5A—C6A | −0.1 (2) | C3B—C4B—C5B—C6B | −0.9 (2) |
O2A—C1A—C6A—C5A | −179.87 (12) | O2B—C1B—C6B—C5B | −179.37 (12) |
C2A—C1A—C6A—C5A | 0.1 (2) | C2B—C1B—C6B—C5B | 0.5 (2) |
O2A—C1A—C6A—C7A | 2.78 (19) | O2B—C1B—C6B—C7B | 1.53 (19) |
C2A—C1A—C6A—C7A | −177.23 (13) | C2B—C1B—C6B—C7B | −178.56 (13) |
O4A—C5A—C6A—C1A | 179.88 (12) | O4B—C5B—C6B—C1B | −177.51 (12) |
C4A—C5A—C6A—C1A | −0.5 (2) | C4B—C5B—C6B—C1B | 0.5 (2) |
O4A—C5A—C6A—C7A | −2.9 (2) | O4B—C5B—C6B—C7B | 1.5 (2) |
C4A—C5A—C6A—C7A | 176.72 (14) | C4B—C5B—C6B—C7B | 179.55 (14) |
C1A—C6A—C7A—C8A | −179.23 (15) | C1B—C6B—C7B—C8B | −169.16 (14) |
C5A—C6A—C7A—C8A | 3.7 (2) | C5B—C6B—C7B—C8B | 11.8 (2) |
C6A—C7A—C8A—C9A | −175.78 (14) | C6B—C7B—C8B—C9B | 179.71 (13) |
C7A—C8A—C9A—O1A | 1.1 (2) | C7B—C8B—C9B—O1B | 0.5 (2) |
C7A—C8A—C9A—C10A | 179.37 (14) | C7B—C8B—C9B—C10B | 179.49 (13) |
O1A—C9A—C10A—C11A | 176.83 (15) | O1B—C9B—C10B—C11B | 169.13 (14) |
C8A—C9A—C10A—C11A | −1.4 (2) | C8B—C9B—C10B—C11B | −9.9 (2) |
C9A—C10A—C11A—C12A | −178.22 (15) | C9B—C10B—C11B—C12B | −173.57 (14) |
C10A—C11A—C12A—C13A | −6.6 (3) | C10B—C11B—C12B—C13B | −0.5 (3) |
C10A—C11A—C12A—C17A | 173.70 (15) | C10B—C11B—C12B—C17B | 176.71 (15) |
C21A—O5A—C13A—C14A | −0.1 (2) | C21B—O5B—C13B—C14B | −0.9 (2) |
C21A—O5A—C13A—C12A | −179.80 (12) | C21B—O5B—C13B—C12B | 179.03 (12) |
C17A—C12A—C13A—O5A | 179.72 (12) | C17B—C12B—C13B—O5B | 179.84 (12) |
C11A—C12A—C13A—O5A | 0.1 (2) | C11B—C12B—C13B—O5B | −2.9 (2) |
C17A—C12A—C13A—C14A | 0.0 (2) | C17B—C12B—C13B—C14B | −0.3 (2) |
C11A—C12A—C13A—C14A | −179.66 (14) | C11B—C12B—C13B—C14B | 177.01 (13) |
O5A—C13A—C14A—C15A | −179.28 (13) | O5B—C13B—C14B—C15B | 179.29 (13) |
C12A—C13A—C14A—C15A | 0.4 (2) | C12B—C13B—C14B—C15B | −0.6 (2) |
C22A—O6A—C15A—C14A | −0.7 (2) | C22B—O6B—C15B—C14B | 1.6 (2) |
C22A—O6A—C15A—C16A | 179.22 (13) | C22B—O6B—C15B—C16B | −178.63 (14) |
C13A—C14A—C15A—O6A | 179.70 (14) | C13B—C14B—C15B—O6B | −179.60 (13) |
C13A—C14A—C15A—C16A | −0.2 (2) | C13B—C14B—C15B—C16B | 0.7 (2) |
O6A—C15A—C16A—C17A | 179.69 (13) | O6B—C15B—C16B—C17B | −179.62 (13) |
C14A—C15A—C16A—C17A | −0.4 (2) | C14B—C15B—C16B—C17B | 0.1 (2) |
C23A—O7A—C17A—C16A | 0.8 (2) | C23B—O7B—C17B—C16B | −4.9 (2) |
C23A—O7A—C17A—C12A | −178.34 (13) | C23B—O7B—C17B—C12B | 175.67 (13) |
C15A—C16A—C17A—O7A | −178.23 (14) | C15B—C16B—C17B—O7B | 179.56 (13) |
C15A—C16A—C17A—C12A | 0.8 (2) | C15B—C16B—C17B—C12B | −1.0 (2) |
C13A—C12A—C17A—O7A | 178.48 (12) | C13B—C12B—C17B—O7B | −179.45 (12) |
C11A—C12A—C17A—O7A | −1.82 (19) | C11B—C12B—C17B—O7B | 3.04 (18) |
C13A—C12A—C17A—C16A | −0.6 (2) | C13B—C12B—C17B—C16B | 1.1 (2) |
C11A—C12A—C17A—C16A | 179.06 (13) | C11B—C12B—C17B—C16B | −176.40 (13) |
Cg1, Cg2 and Cg3 are the centroids of the C1A–C6A, C12A–C17A and C12B–C17B rings, respectively |
D—H···A | D—H | H···A | D···A | D—H···A |
C7A—H7AA···O1A | 0.93 | 2.42 | 2.787 (2) | 104 |
C7A—H7AA···O2A | 0.93 | 2.29 | 2.704 (2) | 106 |
C8A—H8AA···O4A | 0.93 | 2.18 | 2.7844 (17) | 121 |
C7B—H7BA···O1B | 0.93 | 2.49 | 2.8351 (19) | 102 |
C7B—H7BA···O2B | 0.93 | 2.33 | 2.704 (2) | 104 |
C8B—H8BA···O4B | 0.93 | 2.16 | 2.7643 (18) | 121 |
C10A—H10A···O5A | 0.93 | 2.26 | 2.852 (2) | 121 |
C10B—H10B···O5B | 0.93 | 2.26 | 2.855 (2) | 121 |
C11A—H11A···O7A | 0.93 | 2.23 | 2.6599 (17) | 108 |
C11B—H11B···O7B | 0.93 | 2.23 | 2.6700 (17) | 108 |
C20A—H20C···O1B | 0.96 | 2.47 | 3.339 (2) | 151 |
C20B—H20E···O1Ai | 0.96 | 2.37 | 3.0238 (19) | 125 |
C23A—H23C···O1Aii | 0.96 | 2.39 | 3.319 (2) | 162 |
C23B—H23D···O1Bii | 0.96 | 2.41 | 3.262 (2) | 148 |
C18A—H18C···Cg1iii | 0.96 | 2.65 | 3.4503 (17) | 141 |
C21A—H21C···Cg2iv | 0.96 | 2.94 | 3.5813 (18) | 126 |
C21B—H21E···Cg3v | 0.96 | 2.72 | 3.5809 (16) | 150 |
Symmetry codes: (i) x+1, y, z+1; (ii) x, −y+1/2, z+1/2; (iii) −x+1, −y+1, −z; (iv) −x, −y, −z; (v) −x−1, −y+1, −z−1. |
Experimental details
Crystal data | |
Chemical formula | C23H26O7 |
Mr | 414.44 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 100 |
a, b, c (Å) | 15.7417 (2), 15.1192 (2), 19.4803 (3) |
β (°) | 117.827 (1) |
V (Å3) | 4100.21 (11) |
Z | 8 |
Radiation type | Mo Kα |
µ (mm−1) | 0.10 |
Crystal size (mm) | 0.39 × 0.32 × 0.17 |
Data collection | |
Diffractometer | Bruker APEXII DUO CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 2005) |
Tmin, Tmax | 0.963, 0.983 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 50384, 10908, 7903 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.682 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.052, 0.139, 1.04 |
No. of reflections | 10908 |
No. of parameters | 553 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.36, −0.24 |
Computer programs: APEX2 (Bruker, 2005), SAINT (Bruker, 2005), SHELXTL (Sheldrick, 2008) and PLATON (Spek, 2009).
Cg1, Cg2 and Cg3 are the centroids of the C1A–C6A, C12A–C17A and C12B–C17B rings, respectively |
D—H···A | D—H | H···A | D···A | D—H···A |
C7A—H7AA···O1A | 0.93 | 2.42 | 2.787 (2) | 104 |
C7A—H7AA···O2A | 0.93 | 2.29 | 2.704 (2) | 106 |
C8A—H8AA···O4A | 0.93 | 2.18 | 2.7844 (17) | 121 |
C7B—H7BA···O1B | 0.93 | 2.49 | 2.8351 (19) | 102 |
C7B—H7BA···O2B | 0.93 | 2.33 | 2.704 (2) | 104 |
C8B—H8BA···O4B | 0.93 | 2.16 | 2.7643 (18) | 121 |
C10A—H10A···O5A | 0.93 | 2.26 | 2.852 (2) | 121 |
C10B—H10B···O5B | 0.93 | 2.26 | 2.855 (2) | 121 |
C11A—H11A···O7A | 0.93 | 2.23 | 2.6599 (17) | 108 |
C11B—H11B···O7B | 0.93 | 2.23 | 2.6700 (17) | 108 |
C20A—H20C···O1B | 0.96 | 2.47 | 3.339 (2) | 151 |
C20B—H20E···O1Ai | 0.96 | 2.37 | 3.0238 (19) | 125 |
C23A—H23C···O1Aii | 0.96 | 2.39 | 3.319 (2) | 162 |
C23B—H23D···O1Bii | 0.96 | 2.41 | 3.262 (2) | 148 |
C18A—H18C···Cg1iii | 0.96 | 2.65 | 3.4503 (17) | 141 |
C21A—H21C···Cg2iv | 0.96 | 2.94 | 3.5813 (18) | 126 |
C21B—H21E···Cg3v | 0.96 | 2.72 | 3.5809 (16) | 150 |
Symmetry codes: (i) x+1, y, z+1; (ii) x, −y+1/2, z+1/2; (iii) −x+1, −y+1, −z; (iv) −x, −y, −z; (v) −x−1, −y+1, −z−1. |
Acknowledgements
PR thanks the Center of Excellence for Innovation in Chemistry (PERCH–CIC), Commission on Higher Education, Ministry of Education, and the Graduate School, Prince of Songkla University, for financial support. The authors thank the Prince of Songkla University and Universiti Sains Malaysia for the Research University Golden Goose grant No. 1001/PFIZIK/811160.
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.
Bischalcone is an important class of compounds due to their variety of properties such as non-linear optical (Uchida et al., 1998) and fluorescence properties (Gomes et al., 2009) and activities involving anti-inflammatory, antioxidant and anti-tyrosinase activities (Lee et al., 2009) and cytotoxic activities (Quincoces et al., 2008). We have previously reported the crystal structure of (1E,4E)-1,5-bis(2,4,5-trimethoxyphenyl)penta-1,4-dien-3-one (I) (Fun et al., 2010). The title bischalcone (II) was synthesized in order to study the effect of the positions of the trimethoxy substituents to its fluorescence property and anti-tyrosinase activity. Our anti-tyrosinase activity testing showed that the title bischacone possesses anti-tyrosinase activity. We report herein the crystal structure of (II).
There are two crystallograpich independent molecules (A and B) in the asymmetric unit of (II) (Fig. 1) with the same conformation but with slight differences in bond angles. The molecular structure of (II) is unsymmetrical and almost planar. The dihedral angle between the C1–C6 and C12–C17 benzene rings is 1.04 (7)° in molecule A whereas it is 2.31 (7)° in molecule B. The central penta-1,4-dien-3-one unit (C7–C11/O1) is planar with r.m.s. of 0.0124 (1) and 0.0433 (1) Å for molecule A and B, respectively. This unit makes a dihedral angles of 7.61 (7) and 6.82 (7)° with the two adjacent C1–C6 and C12–C17 benzene rings, respectively, in molecule A whereas the corresponding values are 7.85 (7) and 9.42 (6)° in molecule B. The three methoxy groups on the C1–C6 benzene ring are planarly attached, with the C18–O2–C1–C2, C19–O3–C3–C2 and C20–O4–C5–C4 torsion angles of -1.5 (2), -7.2 (2) and 4.1 (2)° in molecule A and -0.7 (2), -5.5 (2) and -0.6 (2)° in molecule B. The same orientation is observed for the three methoxy groups on the C12–C17 benzene ring as indicated by the torsion angles C21–O5–C13–C14, C22–O6–C15–C14 and C23–O7–C17–C16 of -0.1 (2), -0.7 (2) and 0.8 (2)°, respectively, for molecule A and the corresponding values of -0.9 (2), 1.6 (2) and -4.9 (2)° for molecule B. In each molecule, intramolecular C8A—H8AA···O4A and C10A—H10A···O5A [in molecule A]; C8B—H8BA···O4B and C10B—H10B···O5B [in molecule B] weak interactions (Table 1, Fig. 1) generate S(6) ring motifs (Bernstein et al., 1995). The bond distances are in normal ranges (Allen et al., 1987) and are comparable with those of related structures (Fun et al., 2010; Harrison et al., 2006). However there are less C—H···O weak interactions but more C—H···π interactions in (II) than in (I).
In the crystal packing (Fig. 2), the molecules are linked by intermolecular C—H···O weak interactions (Table 1) into zigzag chains along the c axis. The crystal is stabilized by intermolecular C—H···O weak interactions and C—H···π interactions (Table 1). π–π interactions are observed with Cg1···Cg3i = 3.6433 (8) Å (symmetry code: (i) x, 1/2 - y, -1/2 + z; Cg1 and Cg3 are the centroids of the C1A–C6A and C12B–C17B rings, respectively).