metal-organic compounds
catena-Poly[[bis(nitrato-κ2O,O′)zinc(II)]-μ-4,4′-bis(pyrazol-1-ylmethyl)biphenyl-κ2N2:N2′]
aCollege of Chemistry and Materials Science, Heilongjiang University, Harbin 150080, People's Republic of China, bEngineering Research Center of Pesticide of Heilongjiang Province, Heilongjiang University, Harbin 150080, People's Republic of China, and cDaqing New Century Industrial Co. Ltd, Daqing 163511, People's Republic of China
*Correspondence e-mail: hgf1000@163.com
In the title compound, [Zn(NO3)2(C20H18N4)]n, the ZnII atom lies on a crystallographic twofold axis and the coordination geometry can be considered as a slightly distorted tetrahedron defined by two O atoms from two nitrate groups and two N atoms from two ligand molecules. A distorted octahedron may be assumed when two of the symmetry-related nitrate O atoms, with Zn—O distances of 2.528 (2) Å, are added to the coordination environment. Another twofold axis, passing through the middle of the biphenyl bonds, is observed in the A chain along [101] is built up by the ligands linking the ZnII ions.
Related literature
For a related polymeric bis(pyrazole) dinitratocobalt(II) structure, see: Chen et al. (1997). For the synthesis and structure of a three-dimensional polymeric Zn(II) network compound, see: Zhu et al. (2002).
Experimental
Crystal data
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Refinement
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Data collection: RAPID-AUTO (Rigaku, 1998); cell RAPID-AUTO; data reduction: CrystalStructure (Rigaku/MSC, 2002); 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: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810018738/si2259sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810018738/si2259Isup2.hkl
The 4,4'-bis(pyrazole-1-ylmethyl) biphenyl was synthesized by the reaction of pyrazole and 4,4'-bis(chloro) bibenzene under alkaline condition (Zhu et al., 2002). Zinc(II) dinitrate hexahydrate (0.595 g, 2 mmol) and 4,4'-bis(pyrazole-1-ylmethyl) biphenyl (0.618 g, 2 mmol) were dissolved in ethanol (20 ml), colorless block-shaped crystals of the title compound were obtained by slow evaporation of ethanol solution after several days.
H atoms bound to C atoms were placed in calculated positions and treated as riding on their parent atoms, with C—H = 0.93 Å (aromatic), C—H = 0.97 Å (methylene), and with Uiso(H) = 1.2Ueq(C).
The structures of the metal derivative 1,4-bis(pyrazole) benzene are known for zinc and cobalt (Chen et al., 1997). In order to enrich the research of this kinds of ligand, a new ligand 4,4'-bis(pyrazole) biphenyl with longer spacer was synthesized, and which are used in the preparation of coordination compound with zinc dinitrate.
The central Zn atom lies on a crystallographic twofold axis and the coordination geometry can be considered as a slightly distorted tetrahedron defined by two O atoms from two nitrate groups and two N atoms from two ligand molecules. A distorted octahedron may be assumed when two of the C2 related nitrate oxygen atoms with Zn—O distances of 2.528 (2) Å are added (Table 1) to the coordination environment. Another twofold axis, passing through the middle of the biphenyl bonds, is observed in the
(Figure 1).A one dimensional chain is built up by the ligands linking the ZnII ions along the [1 0 1] direction (Figure 2).
For a related polymeric bis(pyrazole) dinitratecobalt(II) structure, see: Chen et al. (1997). For the synthesis and structure of a three-dimensional polymeric Zn(II) network compound, see: Zhu et al. (2002).
Data collection: RAPID-AUTO (Rigaku, 1998); cell
RAPID-AUTO (Rigaku, 1998); data reduction: CrystalStructure (Rigaku/MSC, 2002); 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: SHELXL97 (Sheldrick, 2008).[Zn(NO3)2(C20H18N4)] | F(000) = 1032 |
Mr = 503.77 | Dx = 1.612 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 8577 reflections |
a = 14.088 (3) Å | θ = 3.5–27.5° |
b = 13.780 (3) Å | µ = 1.24 mm−1 |
c = 10.744 (2) Å | T = 291 K |
β = 95.76 (3)° | Block, colorless |
V = 2075.2 (7) Å3 | 0.47 × 0.31 × 0.27 mm |
Z = 4 |
Rigaku R-AXIS RAPID diffractometer | 2361 independent reflections |
Radiation source: fine-focus sealed tube | 2107 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.027 |
ω scan | θmax = 27.5°, θmin = 3.5° |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | h = −18→18 |
Tmin = 0.595, Tmax = 0.728 | k = −17→17 |
9881 measured reflections | l = −13→12 |
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)] = 0.029 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.072 | H-atom parameters constrained |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0366P)2 + 1.1611P] where P = (Fo2 + 2Fc2)/3 |
2361 reflections | (Δ/σ)max = 0.001 |
150 parameters | Δρmax = 0.29 e Å−3 |
0 restraints | Δρmin = −0.30 e Å−3 |
[Zn(NO3)2(C20H18N4)] | V = 2075.2 (7) Å3 |
Mr = 503.77 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 14.088 (3) Å | µ = 1.24 mm−1 |
b = 13.780 (3) Å | T = 291 K |
c = 10.744 (2) Å | 0.47 × 0.31 × 0.27 mm |
β = 95.76 (3)° |
Rigaku R-AXIS RAPID diffractometer | 2361 independent reflections |
Absorption correction: multi-scan (ABSCOR; Higashi, 1995) | 2107 reflections with I > 2σ(I) |
Tmin = 0.595, Tmax = 0.728 | Rint = 0.027 |
9881 measured reflections |
R[F2 > 2σ(F2)] = 0.029 | 0 restraints |
wR(F2) = 0.072 | H-atom parameters constrained |
S = 1.07 | Δρmax = 0.29 e Å−3 |
2361 reflections | Δρmin = −0.30 e Å−3 |
150 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 | ||
C1 | 0.88226 (13) | 0.85458 (13) | 0.30265 (17) | 0.0400 (4) | |
H1 | 0.9299 | 0.8328 | 0.3623 | 0.048* | |
C2 | 0.79425 (13) | 0.81078 (13) | 0.27656 (17) | 0.0422 (4) | |
H2 | 0.7719 | 0.7555 | 0.3138 | 0.051* | |
C3 | 0.74719 (12) | 0.86596 (12) | 0.18459 (17) | 0.0378 (4) | |
H3 | 0.6857 | 0.8550 | 0.1472 | 0.045* | |
C4 | 0.79018 (13) | 1.01784 (13) | 0.06773 (19) | 0.0448 (5) | |
H4A | 0.8446 | 1.0209 | 0.0192 | 0.054* | |
H4B | 0.7877 | 1.0785 | 0.1132 | 0.054* | |
C5 | 0.70008 (12) | 1.00840 (13) | −0.02129 (16) | 0.0344 (4) | |
C6 | 0.68292 (12) | 0.92829 (13) | −0.09799 (17) | 0.0394 (4) | |
H6 | 0.7250 | 0.8761 | −0.0910 | 0.047* | |
C7 | 0.60321 (12) | 0.92531 (13) | −0.18549 (16) | 0.0371 (4) | |
H7 | 0.5913 | 0.8701 | −0.2345 | 0.045* | |
C8 | 0.54112 (11) | 1.00366 (12) | −0.20065 (15) | 0.0304 (3) | |
C9 | 0.55789 (12) | 1.08310 (12) | −0.12237 (16) | 0.0379 (4) | |
H9 | 0.5164 | 1.1357 | −0.1299 | 0.045* | |
C10 | 0.63608 (12) | 1.08471 (13) | −0.03278 (16) | 0.0392 (4) | |
H10 | 0.6456 | 1.1379 | 0.0203 | 0.047* | |
N1 | 0.88943 (9) | 0.93271 (10) | 0.23026 (13) | 0.0336 (3) | |
N2 | 0.80483 (9) | 0.93853 (10) | 0.15759 (12) | 0.0307 (3) | |
N3 | 1.06552 (11) | 1.16224 (10) | 0.10426 (14) | 0.0389 (3) | |
O1 | 1.00867 (10) | 1.09113 (9) | 0.08271 (13) | 0.0476 (3) | |
O2 | 1.10427 (11) | 1.17141 (11) | 0.21293 (14) | 0.0588 (4) | |
O3 | 1.08004 (13) | 1.21789 (11) | 0.02032 (15) | 0.0678 (5) | |
Zn1 | 1.0000 | 1.027091 (19) | 0.2500 | 0.03491 (11) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0374 (9) | 0.0386 (9) | 0.0404 (9) | 0.0011 (7) | −0.0139 (7) | 0.0046 (8) |
C2 | 0.0406 (10) | 0.0393 (9) | 0.0449 (10) | −0.0062 (7) | −0.0043 (8) | 0.0060 (8) |
C3 | 0.0263 (8) | 0.0419 (9) | 0.0430 (9) | −0.0074 (7) | −0.0070 (7) | −0.0014 (8) |
C4 | 0.0330 (9) | 0.0453 (10) | 0.0506 (11) | −0.0088 (7) | −0.0235 (8) | 0.0106 (8) |
C5 | 0.0252 (8) | 0.0407 (8) | 0.0342 (9) | −0.0030 (6) | −0.0121 (6) | 0.0055 (7) |
C6 | 0.0300 (8) | 0.0422 (9) | 0.0424 (9) | 0.0094 (7) | −0.0135 (7) | −0.0017 (8) |
C7 | 0.0343 (9) | 0.0380 (9) | 0.0359 (8) | 0.0042 (7) | −0.0123 (7) | −0.0071 (7) |
C8 | 0.0227 (8) | 0.0379 (8) | 0.0285 (8) | −0.0009 (6) | −0.0080 (6) | 0.0003 (6) |
C9 | 0.0301 (8) | 0.0374 (9) | 0.0428 (9) | 0.0065 (7) | −0.0122 (7) | −0.0038 (7) |
C10 | 0.0372 (9) | 0.0378 (9) | 0.0386 (9) | −0.0014 (7) | −0.0151 (7) | −0.0064 (7) |
N1 | 0.0238 (6) | 0.0356 (7) | 0.0377 (7) | −0.0008 (5) | −0.0151 (5) | 0.0003 (6) |
N2 | 0.0214 (6) | 0.0342 (6) | 0.0337 (7) | −0.0018 (5) | −0.0113 (5) | −0.0008 (6) |
N3 | 0.0339 (8) | 0.0359 (7) | 0.0456 (8) | −0.0004 (6) | −0.0022 (6) | 0.0005 (7) |
O1 | 0.0461 (8) | 0.0409 (7) | 0.0521 (8) | −0.0107 (6) | −0.0130 (6) | 0.0012 (6) |
O2 | 0.0503 (9) | 0.0668 (9) | 0.0550 (8) | −0.0159 (7) | −0.0154 (7) | −0.0043 (7) |
O3 | 0.0858 (12) | 0.0570 (9) | 0.0600 (9) | −0.0229 (9) | 0.0047 (8) | 0.0089 (8) |
Zn1 | 0.02434 (15) | 0.03443 (16) | 0.04240 (18) | 0.000 | −0.01422 (11) | 0.000 |
C1—N1 | 1.338 (2) | C7—H7 | 0.9300 |
C1—C2 | 1.382 (2) | C8—C9 | 1.386 (2) |
C1—H1 | 0.9300 | C8—C8i | 1.490 (3) |
C2—C3 | 1.365 (2) | C9—C10 | 1.388 (2) |
C2—H2 | 0.9300 | C9—H9 | 0.9300 |
C3—N2 | 1.338 (2) | C10—H10 | 0.9300 |
C3—H3 | 0.9300 | N1—N2 | 1.3602 (17) |
C4—N2 | 1.459 (2) | N1—Zn1 | 2.0240 (14) |
C4—C5 | 1.516 (2) | N3—O3 | 1.217 (2) |
C4—H4A | 0.9700 | N3—O2 | 1.245 (2) |
C4—H4B | 0.9700 | N3—O1 | 1.2721 (19) |
C5—C10 | 1.383 (2) | O1—Zn1 | 2.0169 (14) |
C5—C6 | 1.384 (3) | O2—Zn1 | 2.5277 (16) |
C6—C7 | 1.391 (2) | Zn1—O1ii | 2.0169 (14) |
C6—H6 | 0.9300 | Zn1—N1ii | 2.0240 (14) |
C7—C8 | 1.389 (2) | ||
N1—C1—C2 | 110.62 (15) | C8—C9—C10 | 120.55 (15) |
N1—C1—H1 | 124.7 | C8—C9—H9 | 119.7 |
C2—C1—H1 | 124.7 | C10—C9—H9 | 119.7 |
C3—C2—C1 | 105.32 (16) | C5—C10—C9 | 120.98 (16) |
C3—C2—H2 | 127.3 | C5—C10—H10 | 119.5 |
C1—C2—H2 | 127.3 | C9—C10—H10 | 119.5 |
N2—C3—C2 | 108.18 (15) | C1—N1—N2 | 105.55 (13) |
N2—C3—H3 | 125.9 | C1—N1—Zn1 | 123.95 (11) |
C2—C3—H3 | 125.9 | N2—N1—Zn1 | 130.02 (11) |
N2—C4—C5 | 114.01 (14) | C3—N2—N1 | 110.32 (13) |
N2—C4—H4A | 108.8 | C3—N2—C4 | 130.89 (13) |
C5—C4—H4A | 108.8 | N1—N2—C4 | 118.79 (13) |
N2—C4—H4B | 108.8 | O3—N3—O2 | 122.73 (16) |
C5—C4—H4B | 108.8 | O3—N3—O1 | 120.02 (16) |
H4A—C4—H4B | 107.6 | O2—N3—O1 | 117.25 (15) |
C10—C5—C6 | 118.68 (14) | N3—O1—Zn1 | 105.56 (10) |
C10—C5—C4 | 119.23 (16) | N3—O2—Zn1 | 81.99 (10) |
C6—C5—C4 | 121.94 (16) | O1ii—Zn1—O1 | 128.11 (8) |
C5—C6—C7 | 120.45 (15) | O1ii—Zn1—N1 | 105.05 (6) |
C5—C6—H6 | 119.8 | O1—Zn1—N1 | 107.61 (6) |
C7—C6—H6 | 119.8 | O1ii—Zn1—N1ii | 107.61 (6) |
C8—C7—C6 | 120.83 (15) | O1—Zn1—N1ii | 105.05 (6) |
C8—C7—H7 | 119.6 | N1—Zn1—N1ii | 100.03 (8) |
C6—C7—H7 | 119.6 | O1ii—Zn1—O2 | 83.36 (6) |
C9—C8—C7 | 118.41 (14) | O1—Zn1—O2 | 55.06 (5) |
C9—C8—C8i | 120.32 (11) | N1—Zn1—O2 | 160.46 (5) |
C7—C8—C8i | 121.27 (11) | N1ii—Zn1—O2 | 93.94 (6) |
Symmetry codes: (i) −x+1, y, −z−1/2; (ii) −x+2, y, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [Zn(NO3)2(C20H18N4)] |
Mr | 503.77 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 291 |
a, b, c (Å) | 14.088 (3), 13.780 (3), 10.744 (2) |
β (°) | 95.76 (3) |
V (Å3) | 2075.2 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.24 |
Crystal size (mm) | 0.47 × 0.31 × 0.27 |
Data collection | |
Diffractometer | Rigaku R-AXIS RAPID |
Absorption correction | Multi-scan (ABSCOR; Higashi, 1995) |
Tmin, Tmax | 0.595, 0.728 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9881, 2361, 2107 |
Rint | 0.027 |
(sin θ/λ)max (Å−1) | 0.649 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.029, 0.072, 1.07 |
No. of reflections | 2361 |
No. of parameters | 150 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.29, −0.30 |
Computer programs: RAPID-AUTO (Rigaku, 1998), CrystalStructure (Rigaku/MSC, 2002), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
The authors thank the Special Funds for the Research of Scientific and Technological Innovative Talents of Harbin Municipal Science and Technology Bureau (2009RFXXG027), the Science and Technology Planning Project of Heilongjiang Province (GZ08A401) and Heilongjiang University for supporting this study.
References
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Higashi, T. (1995). ABSCOR. Rigaku Corporation, Tokyo, Japan. Google Scholar
Rigaku (1998). RAPID-AUTO. Rigaku Corporation, Tokyo, Japan. Google Scholar
Rigaku/MSC (2002). CrystalClear. Rigaku/MSC Inc., The Woodlands, Texas, USA. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Zhu, H.-F., Zhao, W., Okamura, T., Fei, B.-L., Sun, W.-Y. & Ueyama, N. (2002). New J. Chem. 26, 1277–1279. Web of Science CSD CrossRef CAS Google Scholar
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The structures of the metal derivative 1,4-bis(pyrazole) benzene are known for zinc and cobalt (Chen et al., 1997). In order to enrich the research of this kinds of ligand, a new ligand 4,4'-bis(pyrazole) biphenyl with longer spacer was synthesized, and which are used in the preparation of coordination compound with zinc dinitrate.
The central Zn atom lies on a crystallographic twofold axis and the coordination geometry can be considered as a slightly distorted tetrahedron defined by two O atoms from two nitrate groups and two N atoms from two ligand molecules. A distorted octahedron may be assumed when two of the C2 related nitrate oxygen atoms with Zn—O distances of 2.528 (2) Å are added (Table 1) to the coordination environment. Another twofold axis, passing through the middle of the biphenyl bonds, is observed in the crystal structure (Figure 1).
A one dimensional chain is built up by the ligands linking the ZnII ions along the [1 0 1] direction (Figure 2).