metal-organic compounds
catena-Poly[zinc(II)-bis[μ-2-(2,4-dichlorophenoxy)acetato]]
aSchool of Chemistry and Environment, South China Normal University, Guangzhou 510631, People's Republic of China
*Correspondence e-mail: liushizhu521@126.com
The title polymeric compound, [Zn(C8H5Cl2O3)2]n, was prepared by reaction of zinc(II) chloride with 2,4-dichlorophenoxyacetic acid and sodium hydroxide under hydrothermal conditions. The ZnII atom is coordinated in a distorted tetrahedral environment by four O atoms from four 2,4-dichlorophenoxyacetate ligands. Each ligand bridges two ZnII atoms, forming a polymeric chain along the a axis. Adjacent chains are connected via C—H⋯Cl hydrogen bonds.
Related literature
For metal-organic coordination polymers, see: Qin et al. (2009); Huang et al. (2008); Reineke et al. (1999); Xiong et al. (2002).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); 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
https://doi.org/10.1107/S1600536810015977/ci5084sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810015977/ci5084Isup2.hkl
A mixture of ZnCl2 (0.068 g, 0.5 mmol), H2O (6 ml), 2,4-dichlorophenoxyacetic acid (0.22 g, 1 mmol) was stirred vigorously for 10 min and then sodium hydroxide solution (1.0 mol/L) was added to adjust the pH value to 7.0. The mixture was then sealed in a 25 ml Teflon-lined stainless-steel autoclave. The autoclave was heated at 413 K for 3 d and then slowly cooled to room temperature at 6 K/h. The product was collected by filtration, washed with water and air-dried. Colourless needle-shaped crystals were obtained in ca. 42.3% yield based on Zn.
H atoms were positioned geometrically [C–H = 0.93–0.97 Å] and refined using a riding model, with Uiso(H) = 1.2Ueq(C).
For metal-organic coordination polymers, see: Qin et al. (2009); Huang et al. (2008); Reineke et al. (1999); Xiong et al. (2002).
Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); 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).[Zn(C8H5Cl2O3)2] | Z = 2 |
Mr = 505.43 | F(000) = 504 |
Triclinic, P1 | Dx = 1.833 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 4.7322 (10) Å | Cell parameters from 2642 reflections |
b = 10.459 (2) Å | θ = 2.5–27.7° |
c = 18.979 (4) Å | µ = 1.96 mm−1 |
α = 79.340 (2)° | T = 296 K |
β = 89.838 (2)° | Needle, colourless |
γ = 82.847 (3)° | 0.56 × 0.21 × 0.16 mm |
V = 915.8 (3) Å3 |
Bruker SMART APEXII CCD diffractometer | 3255 independent reflections |
Radiation source: fine-focus sealed tube | 2849 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.021 |
ω scans | θmax = 25.2°, θmin = 2.0° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −5→5 |
Tmin = 0.617, Tmax = 0.731 | k = −12→8 |
4737 measured reflections | l = −22→21 |
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)] = 0.030 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.091 | H-atom parameters constrained |
S = 0.94 | w = 1/[σ2(Fo2) + (0.0663P)2] where P = (Fo2 + 2Fc2)/3 |
3255 reflections | (Δ/σ)max = 0.024 |
244 parameters | Δρmax = 0.34 e Å−3 |
0 restraints | Δρmin = −0.39 e Å−3 |
[Zn(C8H5Cl2O3)2] | γ = 82.847 (3)° |
Mr = 505.43 | V = 915.8 (3) Å3 |
Triclinic, P1 | Z = 2 |
a = 4.7322 (10) Å | Mo Kα radiation |
b = 10.459 (2) Å | µ = 1.96 mm−1 |
c = 18.979 (4) Å | T = 296 K |
α = 79.340 (2)° | 0.56 × 0.21 × 0.16 mm |
β = 89.838 (2)° |
Bruker SMART APEXII CCD diffractometer | 3255 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2849 reflections with I > 2σ(I) |
Tmin = 0.617, Tmax = 0.731 | Rint = 0.021 |
4737 measured reflections |
R[F2 > 2σ(F2)] = 0.030 | 0 restraints |
wR(F2) = 0.091 | H-atom parameters constrained |
S = 0.94 | Δρmax = 0.34 e Å−3 |
3255 reflections | Δρmin = −0.39 e Å−3 |
244 parameters |
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 | ||
Zn1 | 0.66929 (6) | 0.53465 (3) | 0.409892 (14) | 0.02622 (12) | |
Cl2 | 0.46808 (18) | 1.18539 (7) | 0.33205 (4) | 0.0500 (2) | |
Cl3 | −0.18417 (19) | 1.02366 (8) | 0.14274 (4) | 0.0538 (2) | |
O1 | 0.5602 (4) | 0.69621 (17) | 0.44411 (10) | 0.0354 (4) | |
C2 | 0.2487 (7) | 0.8626 (2) | 0.48725 (14) | 0.0368 (6) | |
H2A | 0.0425 | 0.8686 | 0.4858 | 0.044* | |
H2B | 0.3034 | 0.8854 | 0.5321 | 0.044* | |
C1 | 0.3707 (5) | 0.7213 (2) | 0.48733 (13) | 0.0283 (5) | |
O2 | 0.3338 (4) | 0.95654 (17) | 0.43021 (10) | 0.0381 (4) | |
C8 | 0.2572 (6) | 1.0724 (2) | 0.31164 (15) | 0.0344 (6) | |
C3 | 0.2031 (6) | 0.9673 (2) | 0.36461 (14) | 0.0336 (6) | |
C7 | 0.1426 (6) | 1.0904 (3) | 0.24305 (15) | 0.0374 (6) | |
H7 | 0.1846 | 1.1593 | 0.2077 | 0.045* | |
C4 | 0.0218 (6) | 0.8825 (3) | 0.34807 (15) | 0.0370 (6) | |
H4 | −0.0198 | 0.8129 | 0.3830 | 0.044* | |
C6 | −0.0369 (6) | 1.0027 (3) | 0.22834 (15) | 0.0381 (6) | |
C5 | −0.0982 (6) | 0.9003 (3) | 0.27995 (16) | 0.0409 (7) | |
H5 | −0.2199 | 0.8429 | 0.2693 | 0.049* | |
O5 | 0.4663 (4) | 0.5250 (2) | 0.32238 (10) | 0.0379 (4) | |
C9 | 0.2002 (5) | 0.5268 (2) | 0.32394 (13) | 0.0285 (5) | |
C10 | 0.0513 (6) | 0.4985 (3) | 0.25952 (14) | 0.0365 (6) | |
H10A | −0.0637 | 0.4283 | 0.2752 | 0.044* | |
H10B | −0.0762 | 0.5759 | 0.2383 | 0.044* | |
O6 | 0.2391 (4) | 0.46218 (19) | 0.20660 (10) | 0.0394 (5) | |
C11 | 0.3544 (6) | 0.5571 (3) | 0.16035 (14) | 0.0335 (6) | |
C12 | 0.5536 (6) | 0.5123 (3) | 0.11352 (14) | 0.0371 (6) | |
C14 | 0.6058 (7) | 0.7315 (3) | 0.05874 (16) | 0.0440 (7) | |
C15 | 0.4104 (7) | 0.7786 (3) | 0.10480 (18) | 0.0481 (7) | |
H15 | 0.3623 | 0.8684 | 0.1018 | 0.058* | |
C13 | 0.6794 (7) | 0.5995 (3) | 0.06313 (15) | 0.0457 (7) | |
H13 | 0.8135 | 0.5685 | 0.0323 | 0.055* | |
C16 | 0.2865 (7) | 0.6908 (3) | 0.15540 (17) | 0.0452 (7) | |
H16 | 0.1552 | 0.7224 | 0.1866 | 0.054* | |
Cl5 | 0.6472 (2) | 0.34585 (8) | 0.11910 (5) | 0.0616 (3) | |
Cl4 | 0.7620 (2) | 0.84005 (10) | −0.00545 (5) | 0.0660 (3) | |
O7 | 0.0604 (4) | 0.54895 (18) | 0.37772 (9) | 0.0331 (4) | |
O8 | 0.2660 (4) | 0.64018 (18) | 0.53311 (11) | 0.0449 (5) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.02447 (18) | 0.02421 (18) | 0.02907 (18) | −0.00534 (12) | 0.00625 (12) | −0.00117 (12) |
Cl2 | 0.0636 (5) | 0.0330 (4) | 0.0527 (5) | −0.0225 (4) | −0.0055 (4) | 0.0049 (3) |
Cl3 | 0.0667 (5) | 0.0505 (5) | 0.0438 (4) | −0.0079 (4) | −0.0080 (4) | −0.0074 (3) |
O1 | 0.0368 (10) | 0.0253 (9) | 0.0450 (11) | −0.0078 (8) | 0.0112 (9) | −0.0070 (8) |
C2 | 0.0508 (17) | 0.0239 (13) | 0.0339 (14) | −0.0042 (12) | 0.0067 (12) | −0.0011 (11) |
C1 | 0.0325 (14) | 0.0239 (12) | 0.0274 (13) | −0.0053 (10) | −0.0012 (10) | −0.0002 (10) |
O2 | 0.0522 (12) | 0.0239 (9) | 0.0361 (10) | −0.0091 (8) | 0.0002 (9) | 0.0025 (8) |
C8 | 0.0348 (15) | 0.0244 (13) | 0.0427 (15) | −0.0077 (11) | 0.0036 (12) | −0.0007 (11) |
C3 | 0.0385 (15) | 0.0225 (13) | 0.0383 (14) | −0.0022 (11) | 0.0054 (12) | −0.0030 (11) |
C7 | 0.0443 (17) | 0.0260 (13) | 0.0390 (15) | −0.0049 (12) | 0.0062 (12) | 0.0018 (11) |
C4 | 0.0425 (16) | 0.0223 (13) | 0.0433 (15) | −0.0063 (11) | 0.0061 (12) | 0.0026 (11) |
C6 | 0.0412 (16) | 0.0328 (14) | 0.0388 (15) | 0.0008 (12) | 0.0007 (12) | −0.0063 (12) |
C5 | 0.0425 (16) | 0.0291 (14) | 0.0518 (17) | −0.0075 (12) | 0.0023 (13) | −0.0070 (12) |
O5 | 0.0200 (9) | 0.0564 (12) | 0.0392 (10) | −0.0081 (8) | 0.0039 (8) | −0.0116 (9) |
C9 | 0.0257 (13) | 0.0277 (13) | 0.0306 (13) | −0.0048 (10) | 0.0023 (10) | −0.0011 (10) |
C10 | 0.0277 (14) | 0.0499 (17) | 0.0334 (14) | −0.0084 (12) | 0.0027 (11) | −0.0091 (12) |
O6 | 0.0429 (11) | 0.0428 (11) | 0.0352 (10) | −0.0103 (9) | 0.0099 (8) | −0.0117 (9) |
C11 | 0.0323 (14) | 0.0419 (15) | 0.0277 (13) | −0.0034 (12) | −0.0028 (11) | −0.0107 (11) |
C12 | 0.0402 (16) | 0.0382 (15) | 0.0320 (14) | 0.0038 (12) | 0.0012 (11) | −0.0105 (12) |
C14 | 0.0419 (17) | 0.0481 (18) | 0.0391 (16) | −0.0075 (14) | 0.0001 (13) | 0.0007 (13) |
C15 | 0.0489 (18) | 0.0373 (16) | 0.0570 (19) | −0.0018 (14) | −0.0011 (15) | −0.0080 (14) |
C13 | 0.0485 (18) | 0.0522 (19) | 0.0352 (15) | 0.0003 (15) | 0.0085 (13) | −0.0096 (14) |
C16 | 0.0443 (17) | 0.0421 (17) | 0.0506 (17) | −0.0006 (14) | 0.0137 (14) | −0.0152 (14) |
Cl5 | 0.0829 (7) | 0.0394 (4) | 0.0605 (5) | 0.0066 (4) | 0.0191 (5) | −0.0135 (4) |
Cl4 | 0.0775 (6) | 0.0650 (6) | 0.0514 (5) | −0.0220 (5) | 0.0086 (4) | 0.0081 (4) |
O7 | 0.0256 (9) | 0.0427 (11) | 0.0335 (10) | −0.0108 (8) | 0.0070 (8) | −0.0095 (8) |
O8 | 0.0527 (13) | 0.0266 (10) | 0.0495 (12) | −0.0031 (9) | 0.0156 (10) | 0.0071 (9) |
Zn1—O1 | 1.9315 (18) | C5—H5 | 0.93 |
Zn1—O8i | 1.9335 (18) | O5—C9 | 1.258 (3) |
Zn1—O5 | 1.9458 (18) | C9—O7 | 1.256 (3) |
Zn1—O7ii | 1.9622 (18) | C9—C10 | 1.507 (3) |
Cl2—C8 | 1.735 (3) | C10—O6 | 1.412 (3) |
Cl3—C6 | 1.735 (3) | C10—H10A | 0.97 |
O1—C1 | 1.250 (3) | C10—H10B | 0.97 |
C2—O2 | 1.415 (3) | O6—C11 | 1.365 (3) |
C2—C1 | 1.518 (3) | C11—C16 | 1.382 (4) |
C2—H2A | 0.97 | C11—C12 | 1.392 (4) |
C2—H2B | 0.97 | C12—C13 | 1.382 (4) |
C1—O8 | 1.245 (3) | C12—Cl5 | 1.726 (3) |
O2—C3 | 1.372 (3) | C14—C13 | 1.369 (4) |
C8—C3 | 1.395 (4) | C14—C15 | 1.380 (5) |
C8—C7 | 1.383 (4) | C14—Cl4 | 1.735 (3) |
C3—C4 | 1.383 (4) | C15—C16 | 1.383 (4) |
C7—C6 | 1.389 (4) | C15—H15 | 0.93 |
C7—H7 | 0.93 | C13—H13 | 0.93 |
C4—C5 | 1.385 (4) | C16—H16 | 0.93 |
C4—H4 | 0.93 | O7—Zn1iii | 1.9622 (17) |
C6—C5 | 1.371 (4) | O8—Zn1i | 1.9335 (18) |
O1—Zn1—O8i | 126.97 (8) | C6—C5—H5 | 120.1 |
O1—Zn1—O5 | 113.18 (8) | C4—C5—H5 | 120.1 |
O8i—Zn1—O5 | 107.88 (9) | C9—O5—Zn1 | 118.61 (16) |
O1—Zn1—O7ii | 103.55 (8) | O7—C9—O5 | 121.7 (2) |
O8i—Zn1—O7ii | 98.21 (8) | O7—C9—C10 | 120.3 (2) |
O5—Zn1—O7ii | 103.04 (7) | O5—C9—C10 | 118.0 (2) |
C1—O1—Zn1 | 128.96 (17) | O6—C10—C9 | 113.7 (2) |
O2—C2—C1 | 115.7 (2) | O6—C10—H10A | 108.8 |
O2—C2—H2A | 108.4 | C9—C10—H10A | 108.8 |
C1—C2—H2A | 108.4 | O6—C10—H10B | 108.8 |
O2—C2—H2B | 108.4 | C9—C10—H10B | 108.8 |
C1—C2—H2B | 108.4 | H10A—C10—H10B | 107.7 |
H2A—C2—H2B | 107.4 | C11—O6—C10 | 119.4 (2) |
O8—C1—O1 | 126.4 (2) | O6—C11—C16 | 125.9 (2) |
O8—C1—C2 | 113.8 (2) | O6—C11—C12 | 115.7 (2) |
O1—C1—C2 | 119.8 (2) | C16—C11—C12 | 118.4 (3) |
C3—O2—C2 | 117.3 (2) | C13—C12—C11 | 120.8 (3) |
C3—C8—C7 | 121.6 (2) | C13—C12—Cl5 | 119.6 (2) |
C3—C8—Cl2 | 119.6 (2) | C11—C12—Cl5 | 119.6 (2) |
C7—C8—Cl2 | 118.8 (2) | C13—C14—C15 | 120.7 (3) |
O2—C3—C8 | 116.8 (2) | C13—C14—Cl4 | 119.3 (2) |
O2—C3—C4 | 124.7 (2) | C15—C14—Cl4 | 120.0 (3) |
C8—C3—C4 | 118.5 (3) | C16—C15—C14 | 119.4 (3) |
C8—C7—C6 | 118.2 (3) | C16—C15—H15 | 120.3 |
C8—C7—H7 | 120.9 | C14—C15—H15 | 120.3 |
C6—C7—H7 | 120.9 | C14—C13—C12 | 119.7 (3) |
C3—C4—C5 | 120.6 (3) | C14—C13—H13 | 120.2 |
C3—C4—H4 | 119.7 | C12—C13—H13 | 120.2 |
C5—C4—H4 | 119.7 | C15—C16—C11 | 121.1 (3) |
C5—C6—C7 | 121.3 (3) | C15—C16—H16 | 119.5 |
C5—C6—Cl3 | 119.7 (2) | C11—C16—H16 | 119.5 |
C7—C6—Cl3 | 119.0 (2) | C9—O7—Zn1iii | 135.66 (16) |
C6—C5—C4 | 119.8 (3) | C1—O8—Zn1i | 144.34 (19) |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x+1, y, z; (iii) x−1, y, z. |
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2B···Cl2iv | 0.97 | 2.73 | 3.610 (3) | 151 |
Symmetry code: (iv) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Zn(C8H5Cl2O3)2] |
Mr | 505.43 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 4.7322 (10), 10.459 (2), 18.979 (4) |
α, β, γ (°) | 79.340 (2), 89.838 (2), 82.847 (3) |
V (Å3) | 915.8 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.96 |
Crystal size (mm) | 0.56 × 0.21 × 0.16 |
Data collection | |
Diffractometer | Bruker SMART APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.617, 0.731 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4737, 3255, 2849 |
Rint | 0.021 |
(sin θ/λ)max (Å−1) | 0.599 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.030, 0.091, 0.94 |
No. of reflections | 3255 |
No. of parameters | 244 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.34, −0.39 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
C2—H2B···Cl2i | 0.97 | 2.73 | 3.610 (3) | 151 |
Symmetry code: (i) −x+1, −y+2, −z+1. |
Acknowledgements
The author acknowledges South China Normal University for supporting this work.
References
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