metal-organic compounds
(E)-1-Ferrocenyl-3-(2-methoxyphenyl)prop-2-en-1-one
aDepartment of Chemistry, University of Puerto Rico, Río Piedras Campus, San Juan, Puerto Rico
*Correspondence e-mail: rivero.ken@gmail.com
The structure of the title compound, [Fe(C5H5)(C15H13O2)], consists of a ferrocenyl moiety and a 2-methoxyphenyl group linked through a prop-2-en-1-one spacer in an E conformation. In the ferrocene unit, the substituted cyclopentadienyl (Cps) ring and the unsubstituted cyclopentadienyl ring (Cp) are almost parallel to one another [dihedral angle = 1.78 (14)°], and the Cp and Cps rings are in a gauche conformation. The benzene ring is twisted by 10.02 (14) and 11.38 (11)° with respect to the Cp and Cps rings, respectively. In the crystal, molecules are linked by weak C—H⋯O hydrogen bonds into supramolecular chains running along the b-axis direction.
CCDC reference: 987910
Related literature
For the synthesis, see: Attar et al. (2011); Kumar et al. (2012). For related syntheses and background, see: Liu et al. (2001); Wu et al. (2002); Ji et al. (2003); Maree et al. (2008); Jiao et al. (2009); Cardona et al. (2010). For the biological activity of calcones and chalcone derivatives, see: Wu et al. (2002); Arezki et al. (2009); Nabi & Liu (2011); Zhao & Liu (2012). For related structures, see: Lindeman et al. (1997); Wu et al. (2006); Liu et al. (2008).
Experimental
Crystal data
|
Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
CCDC reference: 987910
10.1107/S1600536814003912/xu5769sup1.cif
contains datablocks I, New_Global_Publ_Block. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536814003912/xu5769Isup2.hkl
The title compound was synthesized according to the literature procedure (Cardona et al., 2010). An aqueous solution of sodium hydroxide (5%, 2 ml) was added slowly with stirring to acetylferrocene (0.456 g, 0.002 mol). Then, 2-methoxybenzaldehyde (0.272 g, 0.002 mol) in ethanol (2 ml). The resulting mixture was stirred at room temperature for 2 h. The dark-orange-red precipitated solid was filtered off, washed with cold water and ethanol, dried and recrystallized from a mixture of acetone:water (yield, 84%; M·P. 144–145 °C). Dark violet crystals, suitable for X-ray diffraction, were obtained by the slow evaporation of a 1:1 (v/v) acetone:water solution of the title compound at room temperature over a period of 1 day. NMR analyses were performed on a Bruker AV-500 spectrometer by using CDCl3 99.9% pure as a solvent and Me4Si as external standard.1H-NMR (δ in p.p.m., CDCl3): 3.90 (3H, s), 4.20 (5H, s), 4.60 (2H, s), 4.90 (2H, s), 7.05 (1H, d), 6.95, 7.25, 7.35, 8.10 (4H, dd, d,d, dd), 7.65 (1H, d). 13C-NMR (δ in p.p.m., CDCl3): 55.5, 69.7, 70.1, 72.5, 80.9, 111.2, 123.9, 120.7, 124.7, 128.9, 131.2, 136.3, 158.7, 193.5.
H atoms were placed in calculated positions with C—H = 0.93–0.96 Å and refined in riding mode with Uiso(H) = 1.5Ueq(C) for methyl H atoms and 1.2Ueq(C) for the others.
Data collection: APEX2 (Bruker, 2007); cell
SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).[Fe(C5H5)(C15H13O2)] | Dx = 1.415 Mg m−3 |
Mr = 346.19 | Melting point: 417 K |
Orthorhombic, P212121 | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P 2ac 2ab | Cell parameters from 6681 reflections |
a = 8.8352 (1) Å | θ = 2.9–26.8° |
b = 11.4047 (1) Å | µ = 0.93 mm−1 |
c = 16.1327 (2) Å | T = 296 K |
V = 1625.58 (3) Å3 | Prism, red |
Z = 4 | 0.22 × 0.17 × 0.12 mm |
F(000) = 720 |
Bruker APEXII CCD diffractometer | 3659 independent reflections |
Radiation source: fine-focus sealed tube | 3242 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.022 |
φ and ω scans | θmax = 27.5°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | h = −10→11 |
Tmin = 0.821, Tmax = 0.896 | k = −14→14 |
13238 measured reflections | l = −20→20 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.026 | H-atom parameters constrained |
wR(F2) = 0.065 | w = 1/[σ2(Fo2) + (0.0341P)2 + 0.0721P] where P = (Fo2 + 2Fc2)/3 |
S = 1.05 | (Δ/σ)max = 0.002 |
3658 reflections | Δρmax = 0.21 e Å−3 |
209 parameters | Δρmin = −0.13 e Å−3 |
0 restraints | Absolute structure: Flack (1983), 1523 Friedel pairs |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.004 (14) |
[Fe(C5H5)(C15H13O2)] | V = 1625.58 (3) Å3 |
Mr = 346.19 | Z = 4 |
Orthorhombic, P212121 | Mo Kα radiation |
a = 8.8352 (1) Å | µ = 0.93 mm−1 |
b = 11.4047 (1) Å | T = 296 K |
c = 16.1327 (2) Å | 0.22 × 0.17 × 0.12 mm |
Bruker APEXII CCD diffractometer | 3659 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2007) | 3242 reflections with I > 2σ(I) |
Tmin = 0.821, Tmax = 0.896 | Rint = 0.022 |
13238 measured reflections |
R[F2 > 2σ(F2)] = 0.026 | H-atom parameters constrained |
wR(F2) = 0.065 | Δρmax = 0.21 e Å−3 |
S = 1.05 | Δρmin = −0.13 e Å−3 |
3658 reflections | Absolute structure: Flack (1983), 1523 Friedel pairs |
209 parameters | Absolute structure parameter: 0.004 (14) |
0 restraints |
Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds 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 | ||
C1 | 0.4177 (3) | 0.4890 (3) | 0.63912 (15) | 0.0776 (7) | |
H1 | 0.3408 | 0.4925 | 0.5999 | 0.093* | |
C2 | 0.4854 (3) | 0.5845 (2) | 0.6769 (2) | 0.0889 (10) | |
H2 | 0.4622 | 0.6629 | 0.6673 | 0.107* | |
C3 | 0.5963 (3) | 0.5420 (3) | 0.7327 (2) | 0.0943 (9) | |
H3 | 0.6584 | 0.5869 | 0.7668 | 0.113* | |
C4 | 0.5945 (3) | 0.4190 (3) | 0.72679 (18) | 0.0851 (8) | |
H4 | 0.6566 | 0.3679 | 0.7561 | 0.102* | |
C5 | 0.4835 (3) | 0.3867 (2) | 0.66940 (16) | 0.0754 (7) | |
H5 | 0.4582 | 0.3106 | 0.6542 | 0.091* | |
C6 | 0.2005 (2) | 0.39864 (16) | 0.80793 (12) | 0.0476 (4) | |
H6 | 0.1503 | 0.3369 | 0.7822 | 0.057* | |
C7 | 0.3176 (2) | 0.3888 (2) | 0.86594 (13) | 0.0581 (5) | |
H7 | 0.3582 | 0.3188 | 0.8854 | 0.070* | |
C8 | 0.3639 (2) | 0.5015 (2) | 0.88996 (12) | 0.0623 (5) | |
H8 | 0.4399 | 0.5188 | 0.9279 | 0.075* | |
C9 | 0.2754 (2) | 0.58371 (17) | 0.84677 (12) | 0.0496 (4) | |
H9 | 0.2831 | 0.6648 | 0.8510 | 0.060* | |
C10 | 0.17163 (19) | 0.52116 (16) | 0.79522 (10) | 0.0414 (4) | |
C11 | 0.06791 (18) | 0.57653 (15) | 0.73633 (12) | 0.0437 (4) | |
C12 | −0.00329 (19) | 0.50151 (17) | 0.67329 (12) | 0.0499 (4) | |
H12 | 0.0185 | 0.4217 | 0.6729 | 0.060* | |
C13 | −0.0981 (2) | 0.54437 (16) | 0.61665 (11) | 0.0456 (4) | |
H13 | −0.1167 | 0.6246 | 0.6188 | 0.055* | |
C14 | −0.17574 (19) | 0.47877 (17) | 0.55157 (10) | 0.0442 (4) | |
C15 | −0.1691 (3) | 0.35727 (18) | 0.54580 (13) | 0.0583 (5) | |
H15 | −0.1111 | 0.3156 | 0.5838 | 0.070* | |
C16 | −0.2464 (3) | 0.2974 (2) | 0.48517 (15) | 0.0749 (7) | |
H16 | −0.2408 | 0.2160 | 0.4829 | 0.090* | |
C17 | −0.3305 (3) | 0.3563 (2) | 0.42873 (15) | 0.0774 (7) | |
H17 | −0.3814 | 0.3152 | 0.3874 | 0.093* | |
C18 | −0.3413 (3) | 0.4771 (2) | 0.43210 (14) | 0.0698 (6) | |
H18 | −0.3999 | 0.5173 | 0.3936 | 0.084* | |
C19 | −0.2647 (2) | 0.53742 (19) | 0.49291 (12) | 0.0556 (5) | |
C20 | −0.3610 (4) | 0.7215 (2) | 0.44401 (18) | 0.1102 (12) | |
H20A | −0.3270 | 0.7087 | 0.3882 | 0.165* | |
H20B | −0.3554 | 0.8036 | 0.4568 | 0.165* | |
H20C | −0.4638 | 0.6953 | 0.4493 | 0.165* | |
O1 | 0.04308 (17) | 0.68202 (11) | 0.74047 (9) | 0.0631 (4) | |
O2 | −0.2676 (2) | 0.65768 (14) | 0.49974 (10) | 0.0782 (5) | |
Fe1 | 0.38821 (3) | 0.48092 (2) | 0.764458 (16) | 0.04441 (8) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0711 (15) | 0.106 (2) | 0.0554 (13) | 0.0059 (15) | 0.0217 (11) | 0.0055 (13) |
C2 | 0.095 (2) | 0.0698 (16) | 0.102 (2) | −0.0105 (15) | 0.055 (2) | 0.0035 (15) |
C3 | 0.0524 (14) | 0.127 (3) | 0.103 (2) | −0.0362 (15) | 0.0215 (18) | −0.0322 (19) |
C4 | 0.0488 (13) | 0.115 (2) | 0.0920 (19) | 0.0237 (13) | 0.0192 (17) | −0.0047 (16) |
C5 | 0.0735 (17) | 0.0777 (16) | 0.0751 (17) | 0.0027 (13) | 0.0224 (15) | −0.0200 (13) |
C6 | 0.0461 (11) | 0.0452 (9) | 0.0514 (11) | −0.0029 (8) | 0.0027 (9) | 0.0070 (8) |
C7 | 0.0579 (12) | 0.0656 (12) | 0.0507 (12) | 0.0123 (10) | −0.0015 (10) | 0.0139 (10) |
C8 | 0.0543 (12) | 0.0874 (16) | 0.0454 (10) | 0.0093 (11) | −0.0110 (9) | −0.0073 (10) |
C9 | 0.0504 (11) | 0.0512 (10) | 0.0473 (10) | 0.0025 (9) | 0.0012 (9) | −0.0115 (8) |
C10 | 0.0353 (8) | 0.0479 (9) | 0.0409 (8) | −0.0001 (8) | 0.0049 (7) | 0.0008 (8) |
C11 | 0.0371 (9) | 0.0465 (9) | 0.0474 (10) | 0.0036 (6) | 0.0046 (8) | 0.0028 (8) |
C12 | 0.0429 (10) | 0.0527 (11) | 0.0540 (10) | 0.0055 (8) | −0.0043 (8) | 0.0021 (8) |
C13 | 0.0378 (9) | 0.0516 (10) | 0.0475 (10) | 0.0007 (8) | 0.0034 (8) | 0.0074 (7) |
C14 | 0.0371 (8) | 0.0533 (9) | 0.0423 (9) | −0.0015 (8) | 0.0048 (7) | 0.0031 (8) |
C15 | 0.0647 (13) | 0.0588 (12) | 0.0514 (12) | −0.0030 (10) | 0.0029 (10) | 0.0065 (9) |
C16 | 0.101 (2) | 0.0594 (13) | 0.0644 (15) | −0.0176 (12) | 0.0059 (15) | −0.0008 (11) |
C17 | 0.0956 (19) | 0.0832 (17) | 0.0535 (13) | −0.0280 (14) | −0.0101 (14) | −0.0068 (12) |
C18 | 0.0681 (13) | 0.0886 (16) | 0.0525 (12) | −0.0038 (13) | −0.0143 (10) | 0.0043 (12) |
C19 | 0.0510 (11) | 0.0675 (13) | 0.0484 (11) | 0.0012 (10) | −0.0038 (9) | 0.0011 (9) |
C20 | 0.152 (3) | 0.0934 (19) | 0.0852 (19) | 0.040 (2) | −0.044 (2) | 0.0080 (15) |
O1 | 0.0719 (9) | 0.0497 (7) | 0.0677 (9) | 0.0134 (6) | −0.0116 (8) | 0.0000 (7) |
O2 | 0.1015 (14) | 0.0633 (9) | 0.0698 (10) | 0.0214 (9) | −0.0350 (10) | −0.0010 (7) |
Fe1 | 0.03514 (12) | 0.04845 (13) | 0.04965 (14) | −0.00074 (10) | 0.00249 (11) | −0.00507 (10) |
C1—C2 | 1.385 (4) | C9—Fe1 | 2.0326 (18) |
C1—C5 | 1.391 (3) | C9—H9 | 0.9300 |
C1—Fe1 | 2.041 (2) | C10—C11 | 1.463 (3) |
C1—H1 | 0.9300 | C10—Fe1 | 2.0294 (17) |
C2—C3 | 1.416 (4) | C11—O1 | 1.225 (2) |
C2—Fe1 | 2.032 (3) | C11—C12 | 1.470 (3) |
C2—H2 | 0.9300 | C12—C13 | 1.332 (2) |
C3—C4 | 1.406 (4) | C12—H12 | 0.9300 |
C3—Fe1 | 2.032 (2) | C13—C14 | 1.460 (3) |
C3—H3 | 0.9300 | C13—H13 | 0.9300 |
C4—C5 | 1.398 (3) | C14—C15 | 1.390 (3) |
C4—Fe1 | 2.047 (2) | C14—C19 | 1.400 (3) |
C4—H4 | 0.9300 | C15—C16 | 1.374 (3) |
C5—Fe1 | 2.053 (2) | C15—H15 | 0.9300 |
C5—H5 | 0.9300 | C16—C17 | 1.354 (3) |
C6—C7 | 1.399 (3) | C16—H16 | 0.9300 |
C6—C10 | 1.435 (3) | C17—C18 | 1.382 (3) |
C6—Fe1 | 2.0306 (18) | C17—H17 | 0.9300 |
C6—H6 | 0.9300 | C18—C19 | 1.376 (3) |
C7—C8 | 1.404 (3) | C18—H18 | 0.9300 |
C7—Fe1 | 2.043 (2) | C19—O2 | 1.376 (3) |
C7—H7 | 0.9300 | C20—O2 | 1.421 (3) |
C8—C9 | 1.406 (3) | C20—H20A | 0.9600 |
C8—Fe1 | 2.0496 (19) | C20—H20B | 0.9600 |
C8—H8 | 0.9300 | C20—H20C | 0.9600 |
C9—C10 | 1.429 (3) | ||
C2—C1—C5 | 109.0 (2) | C15—C14—C13 | 122.62 (17) |
C2—C1—Fe1 | 69.79 (15) | C19—C14—C13 | 120.33 (17) |
C5—C1—Fe1 | 70.60 (14) | C16—C15—C14 | 121.5 (2) |
C2—C1—H1 | 125.5 | C16—C15—H15 | 119.3 |
C5—C1—H1 | 125.5 | C14—C15—H15 | 119.3 |
Fe1—C1—H1 | 125.7 | C17—C16—C15 | 120.3 (2) |
C1—C2—C3 | 108.0 (2) | C17—C16—H16 | 119.8 |
C1—C2—Fe1 | 70.46 (14) | C15—C16—H16 | 119.8 |
C3—C2—Fe1 | 69.58 (15) | C16—C17—C18 | 120.4 (2) |
C1—C2—H2 | 126.0 | C16—C17—H17 | 119.8 |
C3—C2—H2 | 126.0 | C18—C17—H17 | 119.8 |
Fe1—C2—H2 | 125.5 | C19—C18—C17 | 119.5 (2) |
C4—C3—C2 | 106.9 (2) | C19—C18—H18 | 120.3 |
C4—C3—Fe1 | 70.41 (14) | C17—C18—H18 | 120.3 |
C2—C3—Fe1 | 69.63 (13) | O2—C19—C18 | 123.08 (19) |
C4—C3—H3 | 126.6 | O2—C19—C14 | 115.64 (17) |
C2—C3—H3 | 126.6 | C18—C19—C14 | 121.3 (2) |
Fe1—C3—H3 | 125.0 | O2—C20—H20A | 109.5 |
C5—C4—C3 | 108.4 (3) | O2—C20—H20B | 109.5 |
C5—C4—Fe1 | 70.30 (13) | H20A—C20—H20B | 109.5 |
C3—C4—Fe1 | 69.26 (14) | O2—C20—H20C | 109.5 |
C5—C4—H4 | 125.8 | H20A—C20—H20C | 109.5 |
C3—C4—H4 | 125.8 | H20B—C20—H20C | 109.5 |
Fe1—C4—H4 | 126.2 | C19—O2—C20 | 118.09 (19) |
C1—C5—C4 | 107.7 (3) | C10—Fe1—C6 | 41.40 (7) |
C1—C5—Fe1 | 69.67 (13) | C10—Fe1—C3 | 146.85 (11) |
C4—C5—Fe1 | 69.82 (13) | C6—Fe1—C3 | 169.96 (12) |
C1—C5—H5 | 126.1 | C10—Fe1—C2 | 115.91 (10) |
C4—C5—H5 | 126.1 | C6—Fe1—C2 | 148.66 (12) |
Fe1—C5—H5 | 126.0 | C3—Fe1—C2 | 40.79 (11) |
C7—C6—C10 | 107.77 (18) | C10—Fe1—C9 | 41.18 (7) |
C7—C6—Fe1 | 70.39 (12) | C6—Fe1—C9 | 68.92 (8) |
C10—C6—Fe1 | 69.26 (10) | C3—Fe1—C9 | 114.23 (10) |
C7—C6—H6 | 126.1 | C2—Fe1—C9 | 109.02 (10) |
C10—C6—H6 | 126.1 | C10—Fe1—C1 | 110.65 (9) |
Fe1—C6—H6 | 125.8 | C6—Fe1—C1 | 117.87 (10) |
C6—C7—C8 | 109.06 (18) | C3—Fe1—C1 | 67.62 (11) |
C6—C7—Fe1 | 69.43 (11) | C2—Fe1—C1 | 39.76 (11) |
C8—C7—Fe1 | 70.19 (12) | C9—Fe1—C1 | 133.16 (10) |
C6—C7—H7 | 125.5 | C10—Fe1—C7 | 68.43 (8) |
C8—C7—H7 | 125.5 | C6—Fe1—C7 | 40.18 (8) |
Fe1—C7—H7 | 126.5 | C3—Fe1—C7 | 130.91 (13) |
C7—C8—C9 | 108.18 (17) | C2—Fe1—C7 | 170.14 (12) |
C7—C8—Fe1 | 69.69 (12) | C9—Fe1—C7 | 67.87 (8) |
C9—C8—Fe1 | 69.21 (11) | C1—Fe1—C7 | 148.88 (10) |
C7—C8—H8 | 125.9 | C10—Fe1—C4 | 171.98 (10) |
C9—C8—H8 | 125.9 | C6—Fe1—C4 | 132.11 (11) |
Fe1—C8—H8 | 126.8 | C3—Fe1—C4 | 40.33 (12) |
C8—C9—C10 | 108.20 (17) | C2—Fe1—C4 | 67.53 (12) |
C8—C9—Fe1 | 70.51 (11) | C9—Fe1—C4 | 146.05 (11) |
C10—C9—Fe1 | 69.29 (10) | C1—Fe1—C4 | 66.89 (11) |
C8—C9—H9 | 125.9 | C7—Fe1—C4 | 109.43 (10) |
C10—C9—H9 | 125.9 | C10—Fe1—C8 | 68.51 (7) |
Fe1—C9—H9 | 125.9 | C6—Fe1—C8 | 68.04 (8) |
C9—C10—C6 | 106.80 (16) | C3—Fe1—C8 | 107.73 (11) |
C9—C10—C11 | 124.36 (17) | C2—Fe1—C8 | 131.63 (11) |
C6—C10—C11 | 128.62 (17) | C9—Fe1—C8 | 40.28 (8) |
C9—C10—Fe1 | 69.53 (10) | C1—Fe1—C8 | 170.76 (11) |
C6—C10—Fe1 | 69.35 (11) | C7—Fe1—C8 | 40.11 (9) |
C11—C10—Fe1 | 121.96 (12) | C4—Fe1—C8 | 115.22 (10) |
O1—C11—C10 | 120.04 (18) | C10—Fe1—C5 | 133.45 (9) |
O1—C11—C12 | 122.19 (17) | C6—Fe1—C5 | 110.56 (10) |
C10—C11—C12 | 117.77 (15) | C3—Fe1—C5 | 67.68 (11) |
C13—C12—C11 | 121.99 (18) | C2—Fe1—C5 | 67.16 (10) |
C13—C12—H12 | 119.0 | C9—Fe1—C5 | 172.29 (10) |
C11—C12—H12 | 119.0 | C1—Fe1—C5 | 39.73 (10) |
C12—C13—C14 | 126.90 (18) | C7—Fe1—C5 | 117.05 (11) |
C12—C13—H13 | 116.6 | C4—Fe1—C5 | 39.88 (10) |
C14—C13—H13 | 116.6 | C8—Fe1—C5 | 147.23 (10) |
C15—C14—C19 | 117.04 (18) |
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6···O1i | 0.93 | 2.48 | 3.368 (2) | 159 |
Symmetry code: (i) −x, y−1/2, −z+3/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
C6—H6···O1i | 0.93 | 2.48 | 3.368 (2) | 159 |
Symmetry code: (i) −x, y−1/2, −z+3/2. |
Acknowledgements
The authors thank the Pfizer Pharmaceuticals Fellowship Program, the UPR–RP RISE Program (No. 2R25GM61151), and the Materials Characterization Center (MCC)-UPR Río Piedras.
References
Arezki, A., Brulé, E. & Jaouen, G. (2009). Organometallics, 28, 1606–1609. Web of Science CSD CrossRef CAS Google Scholar
Attar, S., O'Brien, Z., Alhaddad, H., Golden, M. & Calderon-Urrea, A. (2011). Bioorg. Med. Chem. 19, 2055–2073. Web of Science CSD CrossRef CAS PubMed Google Scholar
Bruker (2007). APEX2, SADABS and SAINT. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cardona, R., Hernández, K., Pedró, L., Otaño, M., Montes, I. & Guadalupe, A. (2010). J. Electrochem. Soc. 157, F104–F110. Web of Science CrossRef CAS Google Scholar
Flack, H. D. (1983). Acta Cryst. A39, 876–881. CrossRef CAS Web of Science IUCr Journals Google Scholar
Ji, S.-J., Wang, S.-Y., Shen, Z.-L. & Zhou, M.-F. (2003). Chin. Chem. Lett. 12, 1246–1248. Google Scholar
Jiao, Y., Wilkinson IV, J., Di, X., Wang, W., Hatcher, H., Kock, N., Dagostino, R., Knovich, M., Torti, F. & Torti, S. (2009). Blood, 113, 462–469. Web of Science CrossRef PubMed CAS Google Scholar
Kumar, C. K., Trivedi, R., Kumar, K. R., Giribabu, L. & Sridhar, B. (2012). J. Organomet. Chem. 718, 64–73. Web of Science CSD CrossRef CAS Google Scholar
Lindeman, S. V., Bozak, R. E., Hicks, R. J. & Husebye, S. (1997). Acta Chem. Scand. 51, 966–968. CrossRef CAS Web of Science Google Scholar
Liu, Y.-H., Liu, J.-F., Jian, P.-M. & Liu, X.-L. (2008). Acta Cryst. E64, m1001–m1002. Web of Science CrossRef CAS IUCr Journals Google Scholar
Liu, M., Wilairat, P. & Go, M. L. (2001). J. Med. Chem. 44, 4443–4447. Web of Science CrossRef PubMed CAS Google Scholar
Maree, M. D., Neuse, E. W., Erasmus, E. & Swarts, J. C. (2008). Met. Based Drugs, pp. 1–10. Google Scholar
Nabi, G. & Liu, Z.-Q. (2011). Bioorg. Med. Chem. Lett. 21, 944–946. Web of Science CrossRef CAS PubMed Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wu, X., Tiekink, E. R. T., Kostetski, I., Kocherginsky, N., Tan, A. L. C., Khoo, S. B., Wilairat, P. & Go, M. L. (2006). Eur. J. Pharm. Sci. 27, 175–187. Web of Science CSD CrossRef PubMed CAS Google Scholar
Wu, X., Wilairat, P. & Go, M. L. (2002). Bioorg. Med. Chem. Lett. 12, 2299–2301. Web of Science CrossRef PubMed CAS Google Scholar
Zhao, C. & Liu, Z.-Q. (2012). Biochimie, pp. 1–7. Google Scholar
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.
Chalcones occur in nature as precursors of flavonoids and exhibit various biological activities such as anti-cancer, anti-inflammatory, nitric oxide regulation and anti-hyperglycemic agents (Liu et al., 2001). They are traditionally synthesized in the laboratory, via the Claisen–Schmidt condensation carried out in basic or acidic media under homogeneous conditions (Attar et al., 2011). Structural modifications of the chalcone template are readily achieved. Biological activities of chalcones are equally wide ranging, such as: anti-bacterial and anti-hyperglycemic, anti-malarial, anti-HIV, anti-oxidant, and anti-tumor (Wu et al., 2002).
The crystal structure of the title compound reveals that the configuration about the C12═C13 bond corresponds to the (E)-isomer. The majority of the C and O atoms of the substituted cyclopentadienyl ring (Cps) are sp2-hybridized and the conjugation is lost at the methoxy substituent of C19. In the ferrocenyl moiety, the planes formed by the Cp (unsubstituted cyclopentadienyl ring) and Cps are almost parallel. The C atoms in these two rings have adopted a gauche conformation, and the Fe metal center lies closer to the Cps ring. The Fe—Cg and Fe—Cgs distances are 1.658 (2) and 1.644 (2) Å, respectively, where Cg and Cgs are the centroids of Cp and Cps, respectively. The Cg—Fe—Cgs angle is 178.4 (2)°.