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Acta Cryst. (2008). E64, m57    [ doi:10.1107/S1600536807062794 ]

Poly[[diaquanickel(II)]-[mu]2-4,4'-bipyridine-[kappa]2N:N'-[mu]-p-phenylenedioxydiacetato-[kappa]2O:O']

L. Zhu, H. Zhu and F. Sun

Abstract top

The title coordination polymer, [Ni(C10H8O6)(C10H8N2)(H2O)2]n, was obtained by the hydrothermal reaction of nickel(II) sulfate, benzene-1,4-dioxydiacetic acid (p-phenylenedioxydiacetic acid) and 4,4'-bipyridine (4,4'-bpy) in alkaline aqueous solution. Each NiII atom is coordinated by two O atoms from two benzene-1,4-dioxydiacetate ligands, two N atoms from two 4,4'-bpy ligands and two water molecules, and displays a distorted octahedral geometry. The NiII atom and benzene-1,4-dioxydiacetate and 4,4'-bpy moieties lie on inversion centres. The benzene-1,4-dioxydiacetate ligands bridge the NiII atoms to form infinite zigzag chains, which are further interconnected by 4,4'-bpy ligands to form a grid-like layer parallel to the (0\overline{1}1) plane. Moreover, there are O-H...O hydrogen-bonding interactions within the grid-like layer between the coordinated water molecules and the carboxylate O atoms.

Comment top

Benzene-1,4-dioxydiacetic acid is an important biologically active compound that has been commonly used in herbicides and plant-growth agents. The two phenoxyacetate groups have versatile bonding modes to metal ions and easily forms complexes (Gao et al., 2005; Hong et al., 2006; Qiu et al., 2006; Qiu et al., 2007). Recently, we obtained the title nickel polymer (I), its crystal structure is reported here.

In the structure of (I) each NiII atom is coordinated by two O atoms from two benzene-1,4-dioxydiacetate ligands, two N atom from two 4,4'-bpy ligands, and displays a distorted octahedral geometry. The Ni atom lies on an inversion center and benzene-1,4-dioxydiacetate and 4,4'-bpy moieties lie other inversion centers. The benzene-1,4-dioxydiacetate ligands bridge nickel ions to form infinite zigzag chains, which are further interconnected by 4,4'-bpy ligands to form a grid-like layer parallel to the (0 - 1 1) plane (Fig. 2). Moreover, there are O—H···O hydrogen bonding interactions within the grid-like layer between the coordinated water molecules and the carboxylate O atoms (Table 1).

Related literature top

For related literature, see: Gao et al. (2005); Hong et al. (2006); Qiu et al. (2006, 2007).

Experimental top

A mixture of NiSO4 (0.5 mmol), benzene-1,4-dioxydiacetic acid (0.5 mmol), 4,4'-bipyridine (0.5 mmol), NaOH (1 mmol) and H2O (12 ml) was placed in a 23 ml Teflon reactor, which was heated at 433 K for three days and then cooled to room temperature at a rate of 5 K h-1. Single crystals were obtained after washing with water and drying in air.

Refinement top

All H atoms attached to C atoms were fixed geometrically and treated as riding with C—H = 0.93 Å (aromatic) or 0.97 Å (methylene and Uiso(H) = 1.2Ueq(C). H atoms of water molecule were located in difference Fourier maps and included in the subsequent refinement using restraints (O—H = 0.82 (1) Å and H···H = 1.34 (2) Å) with Uiso(H) = 1.5Ueq(O). In the last stage of refinement, they were treated as riding on their parent O atoms.

Computing details top

Data collection: APEX2 (Bruker, 2004); cell refinement: SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEPIII within PLATON (Spek, 2003) and CAMERON (Watkin et al., 1993); software used to prepare material for publication: SHELXL97 (Sheldrick, 1997).

Figures top
[Figure 1] Fig. 1. The structure of (I), showing the atom-numbering scheme and displacement ellipsoids drawn at the 30% probability level. H atoms have been omitted for clarity. [Symmetry codes: (i) -x, -y + 1, -z + 1; (ii) -x + 1, -y + 2, -z + 3; (iii) -x, -y + 2, -z + 2]]
[Figure 2] Fig. 2. The two-dimensional layer structure of the title compound, viewed along the a axis.
Poly[[diaquanickel(II)]-µ2-4,4'-bipyridine-κ2N:N'- µ-p-phenylenedioxydiacetato-κ2O:O'] top
Crystal data top
[Ni(C10H8O6)(C10H8N2)(H2O)2]Z = 1
Mr = 475.09F000 = 246
Triclinic, P1Dx = 1.677 Mg m−3
Hall symbol: -P 1Mo Kα radiation
λ = 0.71073 Å
a = 5.7541 (1) ÅCell parameters from 1800 reflections
b = 8.1704 (1) Åθ = 1.4–28.0º
c = 10.6437 (2) ŵ = 1.09 mm−1
α = 106.157 (1)ºT = 293 (2) K
β = 96.818 (1)ºBlock, green
γ = 97.341 (1)º0.26 × 0.23 × 0.19 mm
V = 470.40 (1) Å3
Data collection top
Bruker APEXII area-detector
diffractometer		1952 independent reflections
Radiation source: fine-focus sealed tube1769 reflections with I > 2σ(I)
Monochromator: graphiteRint = 0.026
T = 293(2) Kθmax = 26.5º
φ and ω scansθmin = 2.0º
Absorption correction: multi-scan
(SADABS; Bruker, 2004)		h = −7→7
Tmin = 0.765, Tmax = 0.820k = −8→10
6907 measured reflectionsl = −13→13
Refinement top
Refinement on F2Secondary atom site location: difference Fourier map
Least-squares matrix: fullHydrogen site location: inferred from neighbouring sites
R[F2 > 2σ(F2)] = 0.034H-atom parameters constrained
wR(F2) = 0.086  w = 1/[σ2(Fo2) + (0.0346P)2 + 0.4701P]
where P = (Fo2 + 2Fc2)/3
S = 1.08(Δ/σ)max < 0.001
1952 reflectionsΔρmax = 0.32 e Å−3
142 parametersΔρmin = −0.38 e Å−3
Primary atom site location: structure-invariant direct methodsExtinction correction: none
Crystal data top
[Ni(C10H8O6)(C10H8N2)(H2O)2]γ = 97.341 (1)º
Mr = 475.09V = 470.40 (1) Å3
Triclinic, P1Z = 1
a = 5.7541 (1) ÅMo Kα
b = 8.1704 (1) ŵ = 1.09 mm−1
c = 10.6437 (2) ÅT = 293 (2) K
α = 106.157 (1)º0.26 × 0.23 × 0.19 mm
β = 96.818 (1)º
Data collection top
Bruker APEXII area-detector
diffractometer		1952 independent reflections
Absorption correction: multi-scan
(SADABS; Bruker, 2004)		1769 reflections with I > 2σ(I)
Tmin = 0.765, Tmax = 0.820Rint = 0.026
6907 measured reflections
Refinement top
R[F2 > 2σ(F2)] = 0.034142 parameters
wR(F2) = 0.086H-atom parameters constrained
S = 1.08Δρmax = 0.32 e Å−3
1952 reflectionsΔρmin = −0.38 e Å−3
Special details top

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) top
xyzUiso*/Ueq
C10.1666 (4)0.7074 (3)0.7930 (2)0.0318 (6)
H10.28760.72170.86330.038*
C20.1734 (4)0.5879 (3)0.6736 (2)0.0314 (6)
H20.29650.52400.66550.038*
C3−0.0019 (4)0.5624 (3)0.5655 (2)0.0201 (5)
C4−0.1819 (4)0.6612 (3)0.5876 (2)0.0262 (5)
H4−0.30580.64870.51920.031*
C5−0.1772 (4)0.7772 (3)0.7101 (2)0.0264 (5)
H5−0.30050.84050.72180.032*
C60.1281 (4)0.7277 (3)1.1257 (2)0.0253 (5)
C70.3161 (5)0.6440 (3)1.1868 (3)0.0327 (6)
H7A0.24570.58541.24440.039*
H7B0.36330.55721.11630.039*
C80.5001 (4)0.8782 (3)1.3782 (2)0.0273 (5)
C90.6973 (4)1.0042 (3)1.4391 (3)0.0315 (6)
H90.83071.00791.39780.038*
C100.6996 (4)1.1242 (3)1.5598 (3)0.0315 (6)
H100.83441.20671.59970.038*
N1−0.0044 (3)0.8038 (2)0.81332 (18)0.0227 (4)
Ni10.00001.00001.00000.02315 (14)
O10.2019 (3)0.8651 (2)1.09891 (15)0.0251 (4)
O2−0.0799 (3)0.6527 (2)1.1047 (2)0.0427 (5)
O30.5228 (3)0.7621 (2)1.26119 (17)0.0332 (4)
O1W0.3239 (3)1.1425 (2)0.98244 (16)0.0289 (4)
H1W0.27331.21830.95560.043*
H2W0.43071.11220.94240.043*
Atomic displacement parameters (Å2) top
U11U22U33U12U13U23
C10.0272 (12)0.0431 (15)0.0187 (12)0.0114 (11)−0.0037 (9)−0.0003 (11)
C20.0272 (12)0.0421 (15)0.0207 (12)0.0160 (11)0.0006 (9)−0.0009 (11)
C30.0237 (11)0.0198 (11)0.0155 (11)0.0018 (9)0.0034 (9)0.0040 (9)
C40.0279 (12)0.0282 (12)0.0186 (11)0.0084 (9)−0.0033 (9)0.0019 (9)
C50.0281 (12)0.0257 (12)0.0233 (12)0.0104 (9)0.0010 (9)0.0025 (10)
C60.0307 (12)0.0254 (12)0.0201 (11)0.0100 (10)0.0063 (9)0.0040 (9)
C70.0391 (14)0.0283 (13)0.0327 (14)0.0099 (11)0.0040 (11)0.0111 (11)
C80.0275 (11)0.0332 (13)0.0256 (12)0.0098 (10)0.0017 (9)0.0145 (10)
C90.0228 (11)0.0448 (15)0.0318 (14)0.0072 (10)0.0079 (10)0.0175 (12)
C100.0246 (11)0.0379 (14)0.0326 (14)0.0008 (10)0.0026 (10)0.0142 (11)
N10.0247 (9)0.0231 (10)0.0175 (9)0.0040 (8)0.0035 (8)0.0014 (8)
Ni10.0242 (2)0.0247 (2)0.0187 (2)0.00564 (16)0.00278 (16)0.00319 (17)
O10.0280 (8)0.0250 (9)0.0221 (8)0.0067 (7)0.0013 (7)0.0070 (7)
O20.0309 (10)0.0373 (11)0.0653 (14)0.0067 (8)0.0079 (9)0.0234 (10)
O30.0301 (9)0.0409 (11)0.0281 (9)0.0112 (8)0.0036 (7)0.0077 (8)
O1W0.0231 (8)0.0335 (9)0.0317 (9)0.0058 (7)0.0060 (7)0.0110 (8)
Geometric parameters (Å, °) top
C1—N11.338 (3)C7—H7B0.9700
C1—C21.379 (3)C8—O31.372 (3)
C1—H10.9300C8—C91.387 (3)
C2—C31.386 (3)C8—C10ii1.392 (3)
C2—H20.9300C9—C101.380 (4)
C3—C41.395 (3)C9—H90.9300
C3—C3i1.486 (4)C10—C8ii1.392 (3)
C4—C51.377 (3)C10—H100.9300
C4—H40.9300N1—Ni12.1735 (18)
C5—N11.340 (3)Ni1—O12.0869 (15)
C5—H50.9300Ni1—O1iii2.0869 (15)
C6—O21.237 (3)Ni1—O1Wiii2.1245 (16)
C6—O11.268 (3)Ni1—O1W2.1245 (16)
C6—C71.526 (3)Ni1—N1iii2.1735 (18)
C7—O31.425 (3)O1W—H1W0.8206
C7—H7A0.9700O1W—H2W0.8144
N1—C1—C2123.6 (2)C10—C9—H9119.3
N1—C1—H1118.2C8—C9—H9119.3
C2—C1—H1118.2C9—C10—C8ii119.9 (2)
C1—C2—C3120.4 (2)C9—C10—H10120.0
C1—C2—H2119.8C8ii—C10—H10120.0
C3—C2—H2119.8C1—N1—C5116.27 (19)
C2—C3—C4115.8 (2)C1—N1—Ni1122.60 (15)
C2—C3—C3i122.1 (2)C5—N1—Ni1121.09 (15)
C4—C3—C3i122.1 (2)O1—Ni1—O1iii180.000 (1)
C5—C4—C3120.3 (2)O1—Ni1—O1Wiii92.17 (6)
C5—C4—H4119.8O1iii—Ni1—O1Wiii87.83 (6)
C3—C4—H4119.8O1—Ni1—O1W87.83 (6)
N1—C5—C4123.5 (2)O1iii—Ni1—O1W92.17 (6)
N1—C5—H5118.3O1Wiii—Ni1—O1W180.0
C4—C5—H5118.3O1—Ni1—N1iii90.23 (7)
O2—C6—O1126.6 (2)O1iii—Ni1—N1iii89.77 (7)
O2—C6—C7116.8 (2)O1Wiii—Ni1—N1iii91.96 (7)
O1—C6—C7116.6 (2)O1W—Ni1—N1iii88.04 (7)
O3—C7—C6114.3 (2)O1—Ni1—N189.77 (7)
O3—C7—H7A108.7O1iii—Ni1—N190.23 (7)
C6—C7—H7A108.7O1Wiii—Ni1—N188.04 (7)
O3—C7—H7B108.7O1W—Ni1—N191.96 (7)
C6—C7—H7B108.7N1iii—Ni1—N1180.000 (1)
H7A—C7—H7B107.6C6—O1—Ni1126.73 (15)
O3—C8—C9115.9 (2)C8—O3—C7117.78 (19)
O3—C8—C10ii125.3 (2)Ni1—O1W—H1W100.2
C9—C8—C10ii118.8 (2)Ni1—O1W—H2W131.1
C10—C9—C8121.3 (2)H1W—O1W—H2W108.2
Symmetry codes: (i) −x, −y+1, −z+1; (ii) −x+1, −y+2, −z+3; (iii) −x, −y+2, −z+2.
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
O1W—H1W···O2iii0.821.812.605 (2)163
O1W—H2W···O1iv0.812.212.962 (2)155
Symmetry codes: (iii) −x, −y+2, −z+2; (iv) −x+1, −y+2, −z+2.
Table 1
Selected geometric parameters (Å, °) top
N1—Ni12.1735 (18)Ni1—O1W2.1245 (16)
Ni1—O12.0869 (15)
O1—Ni1—O1W87.83 (6)O1W—Ni1—N191.96 (7)
O1—Ni1—N189.77 (7)
Table 2
Hydrogen-bond geometry (Å, °) top
D—H···AD—HH···AD···AD—H···A
O1W—H1W···O2i0.821.812.605 (2)163
O1W—H2W···O1ii0.812.212.962 (2)155
Symmetry codes: (i) −x, −y+2, −z+2; (ii) −x+1, −y+2, −z+2.
Acknowledgements top

The authors thank South China Normal University for supporting this study.

references
References top

Bruker (2004). APEX2 (Version 1.22), SAINT (Version 6.0) and SADABS (Version 2004/1). Bruker AXS Inc., Madison, Wisconsin, USA.

Gao, S., Liu, J.-W., Huo, L.-H., Xu, Y.-M. & Zhao, H. (2005). Inorg. Chem. Commun. 8, 361–364.

Hong, X.-L., Li, Y.-Z., Hu, H. M., Pan, Y., Bai, J. F. & You, X.-Z. (2006). Cryst. Growth Des. 6, 1221–1224.

Qiu, Y.-C., Chen, C.-L., Zeng, R.-H., Cai, Y.-P. & Deng, H. (2006). Acta Cryst. E62, m1979–m1981.

Qiu, Y. C., Daiguebonne, C., Liu, J. Q., Zeng, R. H., Kerbellec, N., Deng, H. & Guillou, O. (2007). Inorg. Chim. Acta, 360, 3265–3271.

Sheldrick, G. M. (1997). SHELXS97 and SHELXL97. University of Göttingen, Germany.

Spek, A. L. (2003). J. Appl. Cryst. 36, 7–13.

Watkin, D. M., Pearce, L. & Prout, C. K. (1993). CAMERON. Chemical Crystallography Laboratory, University of Oxford, England.