Abstract
In the title compound, C30H20N2, the anthracene ring system is approximately planar [maximum deviation = 0.035 (2) Å] and is nearly perpendicular to the central pyridine ring, making a dihedral angle of 75.73 (7)°. The terminal pyridine ring and the phenyl ring are oriented at dihedral angles of 8.11 (10) and 13.22 (10)°, respectively, to the central pyridine ring.
Related literature
For applications of aromatic conjugated organic compounds, see: Nishihara et al. (1989 ▶); Mi et al. (2003 ▶); Roberto et al. (2000 ▶).
Experimental
Crystal data
C30H20N2
M r = 408.48
Monoclinic,
a = 12.6420 (3) Å
b = 14.8499 (4) Å
c = 11.8707 (3) Å
β = 104.006 (2)°
V = 2162.26 (9) Å3
Z = 4
Mo Kα radiation
μ = 0.07 mm−1
T = 298 K
0.2 × 0.2 × 0.2 mm
Data collection
Bruker SMART 1000 CCD area-detector diffractometer
35644 measured reflections
4951 independent reflections
3128 reflections with I > 2σ(I)
R int = 0.038
Refinement
R[F 2 > 2σ(F 2)] = 0.063
wR(F 2) = 0.215
S = 1.33
4951 reflections
289 parameters
H-atom parameters constrained
Δρmax = 0.20 e Å−3
Δρmin = −0.20 e Å−3
Data collection: SMART (Bruker, 2007 ▶); cell refinement: SAINT (Bruker, 2007 ▶); 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.
Supplementary Material
Crystal structure: contains datablock(s) I, global. DOI: 10.1107/S1600536812012299/xu5476sup1.cif
Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536812012299/xu5476Isup2.hkl
Supplementary material file. DOI: 10.1107/S1600536812012299/xu5476Isup3.cml
Additional supplementary materials: crystallographic information; 3D view; checkCIF report
Acknowledgments
The work was supported by the National Natural Science Foundation of China (50873001, 21071001) and the Education Committee of Anhui Province, China (KJ2011Z338).
supplementary crystallographic information
Comment
The aromatic conjugated organic compounds are investigated with great interest due to their potential applications in optical image processing, all-optical switching, organic light emitting diodes (OLEDs) and integrated optical devices (Nishihara et al., 1989; Mi et al., 2003; Roberto et al., 2000). As a part of our continuing studies of the synthesis and characterization of optical materials, we have prepared a new anthracene derivative containing two pyridine rings and investigated its crystal structure.
The molecule structure of (I) is shown in Fig. 1. Two pyridine rings makes the dihedral angle of 8.11 (10)°. The anthracen moiety is almost planar, and make the dihedral angles of 75.73 (7)° and 67.84 (2)° with two pyridine rings, respectively.
Experimental
3-(Anthracen-9-yl)-1-phenylprop-2-en-1-one (1.54 g, 5.0 mmol), 2-acetylpyridine (1.82 g, 15 mmol) and NaOH (0.20 g, 5.0 mmol) were crashed together with a pestle and mortar for 3 h. The light yellow powder was added to a stirred solution of ammonium acetate (15.4 g, 200.0 mmol) in ethanol (200 ml). The reaction mixture was heated at reflux. Thin layer chromatography analysis tracking reaction, evaporated solvent, extracted with dichloromethane, and dried to afford the product. It was purified by flash column chromatography on silica. Elution with petroleum/ethyl acetate (10:1) gave a white solid (yield; 1.3 g, 65%). Single crystals of (I) were grown by slow evaporation of a dichloromethane/ethyl acetate (1:1) solution.
Refinement
H atoms were positioned geometrically with C—H = 0.93 Å and constrained to ride on their parent atoms with Uiso(H) = 1.2Ueq(C).
Figures
Fig. 1.
The molecular structure of the title molecule, with the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level.
Fig. 2.
A packing diagram of (I).
Crystal data
| C30H20N2 | F(000) = 856 |
| Mr = 408.48 | Dx = 1.255 Mg m−3 |
| Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
| Hall symbol: -P 2ybc | Cell parameters from 5640 reflections |
| a = 12.6420 (3) Å | θ = 2.2–22.7° |
| b = 14.8499 (4) Å | µ = 0.07 mm−1 |
| c = 11.8707 (3) Å | T = 298 K |
| β = 104.006 (2)° | Block, pale yellow |
| V = 2162.26 (9) Å3 | 0.2 × 0.2 × 0.2 mm |
| Z = 4 |
Data collection
| Bruker SMART 1000 CCD area-detector diffractometer | 3128 reflections with I > 2σ(I) |
| Radiation source: fine-focus sealed tube | Rint = 0.038 |
| Graphite monochromator | θmax = 27.5°, θmin = 2.2° |
| φ and ω scans | h = −16→16 |
| 35644 measured reflections | k = −19→17 |
| 4951 independent reflections | l = −15→15 |
Refinement
| 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)] = 0.063 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.215 | H-atom parameters constrained |
| S = 1.33 | w = 1/[σ2(Fo2) + (0.1P)2] where P = (Fo2 + 2Fc2)/3 |
| 4951 reflections | (Δ/σ)max < 0.001 |
| 289 parameters | Δρmax = 0.20 e Å−3 |
| 0 restraints | Δρmin = −0.20 e Å−3 |
Special details
| 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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
| x | y | z | Uiso*/Ueq | ||
| N1 | 0.56725 (12) | 0.37331 (10) | 0.11808 (12) | 0.0487 (4) | |
| C18 | 0.64872 (14) | 0.37932 (12) | 0.21431 (15) | 0.0488 (5) | |
| C20 | 0.47454 (15) | 0.29870 (13) | −0.05928 (15) | 0.0509 (5) | |
| C10 | 0.82717 (15) | 0.18045 (13) | 0.18202 (16) | 0.0529 (5) | |
| N2 | 0.71173 (15) | 0.45087 (13) | 0.40278 (15) | 0.0651 (5) | |
| C16 | 0.65564 (15) | 0.24508 (14) | 0.05996 (16) | 0.0533 (5) | |
| H16 | 0.6560 | 0.2001 | 0.0056 | 0.064* | |
| C17 | 0.57066 (15) | 0.30714 (13) | 0.04214 (15) | 0.0481 (5) | |
| C6 | 0.82357 (16) | 0.11106 (13) | 0.26209 (17) | 0.0551 (5) | |
| C9 | 0.90771 (15) | 0.18139 (13) | 0.11945 (17) | 0.0547 (5) | |
| C15 | 0.73990 (14) | 0.25080 (13) | 0.15945 (17) | 0.0522 (5) | |
| C5 | 0.90315 (17) | 0.04023 (14) | 0.27789 (19) | 0.0619 (6) | |
| C30 | 0.47702 (17) | 0.24029 (15) | −0.14691 (16) | 0.0588 (5) | |
| H30 | 0.5407 | 0.2087 | −0.1464 | 0.071* | |
| C25 | 0.63672 (15) | 0.44908 (12) | 0.29968 (16) | 0.0479 (4) | |
| C8 | 0.98524 (16) | 0.10877 (15) | 0.13417 (18) | 0.0612 (6) | |
| C19 | 0.73694 (15) | 0.31995 (13) | 0.23649 (17) | 0.0547 (5) | |
| H19 | 0.7933 | 0.3269 | 0.3027 | 0.066* | |
| C1 | 0.74384 (18) | 0.10684 (15) | 0.32911 (19) | 0.0646 (6) | |
| H1 | 0.6908 | 0.1515 | 0.3199 | 0.078* | |
| C29 | 0.69808 (19) | 0.51083 (16) | 0.48382 (18) | 0.0668 (6) | |
| H29 | 0.7490 | 0.5117 | 0.5550 | 0.080* | |
| C7 | 0.98102 (17) | 0.04122 (15) | 0.2135 (2) | 0.0675 (6) | |
| H7 | 1.0322 | −0.0050 | 0.2239 | 0.081* | |
| C13 | 0.99391 (19) | 0.24831 (18) | −0.0222 (2) | 0.0722 (6) | |
| H13 | 0.9983 | 0.2948 | −0.0733 | 0.087* | |
| C14 | 0.91720 (17) | 0.25100 (16) | 0.03936 (18) | 0.0634 (6) | |
| H14 | 0.8692 | 0.2994 | 0.0294 | 0.076* | |
| C26 | 0.54987 (18) | 0.50785 (16) | 0.2783 (2) | 0.0708 (6) | |
| H26 | 0.4988 | 0.5066 | 0.2072 | 0.085* | |
| C24 | 0.38033 (18) | 0.34689 (19) | −0.06388 (19) | 0.0791 (7) | |
| H24 | 0.3781 | 0.3885 | −0.0060 | 0.095* | |
| C4 | 0.8981 (2) | −0.02999 (16) | 0.3592 (2) | 0.0798 (7) | |
| H4 | 0.9490 | −0.0764 | 0.3699 | 0.096* | |
| C28 | 0.6140 (2) | 0.56951 (17) | 0.4665 (2) | 0.0732 (7) | |
| H28 | 0.6075 | 0.6099 | 0.5243 | 0.088* | |
| C2 | 0.7437 (2) | 0.03950 (17) | 0.4056 (2) | 0.0762 (7) | |
| H2 | 0.6917 | 0.0391 | 0.4491 | 0.091* | |
| C12 | 1.0679 (2) | 0.1750 (2) | −0.0096 (2) | 0.0813 (7) | |
| H12 | 1.1196 | 0.1728 | −0.0536 | 0.098* | |
| C11 | 1.06313 (19) | 0.10878 (18) | 0.0663 (2) | 0.0780 (7) | |
| H11 | 1.1126 | 0.0615 | 0.0744 | 0.094* | |
| C3 | 0.8214 (2) | −0.03005 (19) | 0.4202 (2) | 0.0858 (8) | |
| H3 | 0.8197 | −0.0764 | 0.4724 | 0.103* | |
| C27 | 0.5389 (2) | 0.56830 (18) | 0.3625 (2) | 0.0873 (8) | |
| H27 | 0.4805 | 0.6082 | 0.3485 | 0.105* | |
| C22 | 0.2928 (2) | 0.2736 (2) | −0.2388 (2) | 0.0911 (9) | |
| H22 | 0.2314 | 0.2637 | −0.2989 | 0.109* | |
| C21 | 0.3868 (2) | 0.22766 (18) | −0.23564 (19) | 0.0789 (7) | |
| H21 | 0.3896 | 0.1872 | −0.2947 | 0.095* | |
| C23 | 0.2893 (2) | 0.3338 (2) | −0.1538 (2) | 0.1001 (10) | |
| H23 | 0.2258 | 0.3662 | −0.1561 | 0.120* |
Atomic displacement parameters (Å2)
| U11 | U22 | U33 | U12 | U13 | U23 | |
| N1 | 0.0500 (9) | 0.0484 (10) | 0.0466 (8) | 0.0047 (7) | 0.0096 (7) | 0.0033 (7) |
| C18 | 0.0479 (10) | 0.0460 (11) | 0.0515 (10) | 0.0006 (8) | 0.0099 (8) | 0.0042 (8) |
| C20 | 0.0507 (11) | 0.0549 (12) | 0.0459 (9) | 0.0089 (8) | 0.0092 (8) | 0.0081 (9) |
| C10 | 0.0471 (10) | 0.0473 (11) | 0.0576 (10) | 0.0069 (8) | −0.0006 (8) | −0.0051 (9) |
| N2 | 0.0652 (11) | 0.0657 (12) | 0.0604 (10) | 0.0019 (9) | 0.0072 (8) | −0.0023 (9) |
| C16 | 0.0526 (11) | 0.0504 (12) | 0.0537 (10) | 0.0086 (8) | 0.0069 (8) | −0.0021 (9) |
| C17 | 0.0492 (10) | 0.0491 (11) | 0.0455 (9) | 0.0037 (8) | 0.0105 (8) | 0.0064 (8) |
| C6 | 0.0487 (10) | 0.0481 (12) | 0.0603 (11) | 0.0038 (8) | −0.0028 (8) | −0.0032 (9) |
| C9 | 0.0477 (10) | 0.0511 (12) | 0.0578 (11) | 0.0050 (8) | −0.0021 (8) | −0.0067 (9) |
| C15 | 0.0483 (10) | 0.0449 (11) | 0.0603 (11) | 0.0059 (8) | 0.0069 (8) | 0.0028 (9) |
| C5 | 0.0532 (12) | 0.0502 (12) | 0.0728 (13) | 0.0069 (9) | −0.0032 (10) | −0.0010 (10) |
| C30 | 0.0584 (12) | 0.0651 (13) | 0.0499 (10) | 0.0119 (10) | 0.0073 (9) | −0.0045 (10) |
| C25 | 0.0503 (10) | 0.0412 (10) | 0.0519 (10) | −0.0012 (8) | 0.0116 (8) | 0.0042 (8) |
| C8 | 0.0476 (11) | 0.0617 (14) | 0.0687 (13) | 0.0084 (9) | 0.0031 (9) | −0.0096 (11) |
| C19 | 0.0495 (10) | 0.0497 (12) | 0.0583 (11) | 0.0041 (8) | 0.0001 (8) | 0.0009 (9) |
| C1 | 0.0580 (12) | 0.0584 (14) | 0.0726 (13) | 0.0030 (10) | 0.0064 (10) | 0.0001 (11) |
| C29 | 0.0793 (15) | 0.0669 (15) | 0.0522 (11) | −0.0039 (11) | 0.0117 (10) | −0.0084 (10) |
| C7 | 0.0564 (12) | 0.0540 (13) | 0.0845 (15) | 0.0153 (10) | 0.0024 (11) | 0.0009 (11) |
| C13 | 0.0628 (13) | 0.0835 (17) | 0.0662 (13) | −0.0037 (12) | 0.0080 (11) | 0.0032 (12) |
| C14 | 0.0548 (12) | 0.0640 (14) | 0.0648 (12) | 0.0050 (10) | 0.0017 (10) | −0.0022 (11) |
| C26 | 0.0701 (14) | 0.0677 (15) | 0.0673 (13) | 0.0178 (11) | 0.0026 (10) | −0.0121 (11) |
| C24 | 0.0676 (15) | 0.1003 (19) | 0.0601 (12) | 0.0295 (13) | −0.0026 (10) | −0.0151 (13) |
| C4 | 0.0747 (16) | 0.0581 (15) | 0.0971 (17) | 0.0133 (12) | 0.0022 (14) | 0.0174 (13) |
| C28 | 0.0850 (16) | 0.0680 (15) | 0.0690 (14) | 0.0044 (12) | 0.0233 (12) | −0.0180 (12) |
| C2 | 0.0725 (15) | 0.0716 (16) | 0.0825 (15) | −0.0037 (12) | 0.0151 (12) | 0.0121 (13) |
| C12 | 0.0626 (14) | 0.099 (2) | 0.0828 (16) | 0.0047 (14) | 0.0188 (12) | −0.0051 (15) |
| C11 | 0.0585 (13) | 0.0804 (17) | 0.0913 (17) | 0.0164 (12) | 0.0109 (12) | −0.0061 (15) |
| C3 | 0.0856 (18) | 0.0694 (17) | 0.0977 (18) | −0.0010 (13) | 0.0133 (15) | 0.0244 (14) |
| C27 | 0.0881 (18) | 0.0794 (18) | 0.0926 (18) | 0.0285 (14) | 0.0182 (14) | −0.0137 (15) |
| C22 | 0.0741 (17) | 0.128 (2) | 0.0582 (13) | 0.0138 (16) | −0.0095 (12) | −0.0087 (15) |
| C21 | 0.0836 (17) | 0.0906 (18) | 0.0563 (12) | 0.0096 (14) | 0.0047 (11) | −0.0143 (12) |
| C23 | 0.0695 (16) | 0.150 (3) | 0.0691 (15) | 0.0432 (17) | −0.0065 (12) | −0.0183 (17) |
Geometric parameters (Å, º)
| N1—C17 | 1.341 (2) | C1—H1 | 0.9300 |
| N1—C18 | 1.343 (2) | C29—C28 | 1.351 (3) |
| C18—C19 | 1.396 (3) | C29—H29 | 0.9300 |
| C18—C25 | 1.482 (3) | C7—H7 | 0.9300 |
| C20—C30 | 1.361 (3) | C13—C14 | 1.349 (3) |
| C20—C24 | 1.379 (3) | C13—C12 | 1.420 (4) |
| C20—C17 | 1.494 (2) | C13—H13 | 0.9300 |
| C10—C9 | 1.398 (3) | C14—H14 | 0.9300 |
| C10—C6 | 1.410 (3) | C26—C27 | 1.375 (3) |
| C10—C15 | 1.496 (3) | C26—H26 | 0.9300 |
| N2—C29 | 1.352 (3) | C24—C23 | 1.381 (3) |
| N2—C25 | 1.355 (2) | C24—H24 | 0.9300 |
| C16—C15 | 1.388 (2) | C4—C3 | 1.344 (4) |
| C16—C17 | 1.392 (3) | C4—H4 | 0.9300 |
| C16—H16 | 0.9300 | C28—C27 | 1.363 (3) |
| C6—C1 | 1.429 (3) | C28—H28 | 0.9300 |
| C6—C5 | 1.436 (3) | C2—C3 | 1.407 (4) |
| C9—C14 | 1.429 (3) | C2—H2 | 0.9300 |
| C9—C8 | 1.439 (3) | C12—C11 | 1.345 (4) |
| C15—C19 | 1.382 (3) | C12—H12 | 0.9300 |
| C5—C7 | 1.385 (3) | C11—H11 | 0.9300 |
| C5—C4 | 1.433 (3) | C3—H3 | 0.9300 |
| C30—C21 | 1.365 (3) | C27—H27 | 0.9300 |
| C30—H30 | 0.9300 | C22—C23 | 1.357 (4) |
| C25—C26 | 1.377 (3) | C22—C21 | 1.363 (4) |
| C8—C7 | 1.386 (3) | C22—H22 | 0.9300 |
| C8—C11 | 1.415 (3) | C21—H21 | 0.9300 |
| C19—H19 | 0.9300 | C23—H23 | 0.9300 |
| C1—C2 | 1.351 (3) | ||
| C17—N1—C18 | 118.52 (15) | N2—C29—H29 | 118.4 |
| N1—C18—C19 | 122.12 (17) | C5—C7—C8 | 122.16 (19) |
| N1—C18—C25 | 116.33 (16) | C5—C7—H7 | 118.9 |
| C19—C18—C25 | 121.45 (16) | C8—C7—H7 | 118.9 |
| C30—C20—C24 | 118.68 (18) | C14—C13—C12 | 120.5 (2) |
| C30—C20—C17 | 120.31 (17) | C14—C13—H13 | 119.8 |
| C24—C20—C17 | 120.95 (18) | C12—C13—H13 | 119.8 |
| C9—C10—C6 | 120.79 (17) | C13—C14—C9 | 121.8 (2) |
| C9—C10—C15 | 119.89 (18) | C13—C14—H14 | 119.1 |
| C6—C10—C15 | 119.23 (19) | C9—C14—H14 | 119.1 |
| C29—N2—C25 | 118.27 (18) | C27—C26—C25 | 119.7 (2) |
| C15—C16—C17 | 119.58 (18) | C27—C26—H26 | 120.1 |
| C15—C16—H16 | 120.2 | C25—C26—H26 | 120.1 |
| C17—C16—H16 | 120.2 | C20—C24—C23 | 120.5 (2) |
| N1—C17—C16 | 122.14 (16) | C20—C24—H24 | 119.7 |
| N1—C17—C20 | 116.79 (16) | C23—C24—H24 | 119.7 |
| C16—C17—C20 | 120.93 (17) | C3—C4—C5 | 121.3 (2) |
| C10—C6—C1 | 123.35 (18) | C3—C4—H4 | 119.4 |
| C10—C6—C5 | 119.2 (2) | C5—C4—H4 | 119.4 |
| C1—C6—C5 | 117.49 (19) | C29—C28—C27 | 118.6 (2) |
| C10—C9—C14 | 123.36 (18) | C29—C28—H28 | 120.7 |
| C10—C9—C8 | 119.35 (19) | C27—C28—H28 | 120.7 |
| C14—C9—C8 | 117.3 (2) | C1—C2—C3 | 120.8 (3) |
| C19—C15—C16 | 118.06 (16) | C1—C2—H2 | 119.6 |
| C19—C15—C10 | 122.51 (16) | C3—C2—H2 | 119.6 |
| C16—C15—C10 | 119.37 (17) | C11—C12—C13 | 119.7 (2) |
| C7—C5—C4 | 122.2 (2) | C11—C12—H12 | 120.1 |
| C7—C5—C6 | 119.3 (2) | C13—C12—H12 | 120.1 |
| C4—C5—C6 | 118.5 (2) | C12—C11—C8 | 122.1 (2) |
| C20—C30—C21 | 120.5 (2) | C12—C11—H11 | 118.9 |
| C20—C30—H30 | 119.7 | C8—C11—H11 | 118.9 |
| C21—C30—H30 | 119.7 | C4—C3—C2 | 120.4 (2) |
| N2—C25—C26 | 120.42 (18) | C4—C3—H3 | 119.8 |
| N2—C25—C18 | 117.79 (16) | C2—C3—H3 | 119.8 |
| C26—C25—C18 | 121.73 (17) | C28—C27—C26 | 119.7 (2) |
| C7—C8—C11 | 122.3 (2) | C28—C27—H27 | 120.1 |
| C7—C8—C9 | 119.2 (2) | C26—C27—H27 | 120.1 |
| C11—C8—C9 | 118.6 (2) | C23—C22—C21 | 119.6 (2) |
| C15—C19—C18 | 119.54 (16) | C23—C22—H22 | 120.2 |
| C15—C19—H19 | 120.2 | C21—C22—H22 | 120.2 |
| C18—C19—H19 | 120.2 | C22—C21—C30 | 120.8 (2) |
| C2—C1—C6 | 121.5 (2) | C22—C21—H21 | 119.6 |
| C2—C1—H1 | 119.3 | C30—C21—H21 | 119.6 |
| C6—C1—H1 | 119.3 | C22—C23—C24 | 119.8 (2) |
| C28—C29—N2 | 123.2 (2) | C22—C23—H23 | 120.1 |
| C28—C29—H29 | 118.4 | C24—C23—H23 | 120.1 |
Footnotes
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: XU5476).
References
- Bruker (2007). SMART and SAINT Bruker AXS Inc., Madison, Wisconsin, USA.
- Mi, B.-X., Wang, P.-F., Liu, M.-W., Kwong, H.-L., Wong, N.-B., Lee, C.-S. & Lee, S.-T. (2003). Chem. Mater. 15, 3148–3151.
- Nishihara, H., Haruna, M. & Suhara, T. (1989). In Optical Intergrated Circuits New York: McGraw–Hill.
- Roberto, D., Ugo, R., Bruni, S., Cariati, E., Cariati, F., Fantucci, P., Invernizzi, I., Quici, S., Ledoux, I. & Zyss, J. (2000). Organometallics, 19, 1775–1788.
- Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. [DOI] [PubMed]
Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Crystal structure: contains datablock(s) I, global. DOI: 10.1107/S1600536812012299/xu5476sup1.cif
Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536812012299/xu5476Isup2.hkl
Supplementary material file. DOI: 10.1107/S1600536812012299/xu5476Isup3.cml
Additional supplementary materials: crystallographic information; 3D view; checkCIF report


