metal-organic compounds
Bis(2,2′-bipyridyl-κ2N,N′)(sulfato-κ2O,O′)zinc(II) ethane-1,2-diol solvate
aDepartment of Applied Chemistry, Nanjing College of Chemical Technology, Nanjing 210048, People's Republic of China
*Correspondence e-mail: zklong@tom.com
The title compound, [Zn(SO4)(C10H8N2)2]·C2H6O2, is a six-coordinate zinc(II) complex with a distorted octahedral coordination geometry. The ZnII atom is bonded by two O atoms of the bidentate chelating sulfate ligand and four N atoms of the two chelating 2,2′-bipyridine ligands. The Zn—N bond distances range from 2.1287 (17) to 2.1452 (17) Å and the Zn—O bond distance is 2.1811 (15) Å. The two chelating NCCN groups subtend a dihedral angle of 81.1 (1)°. In the the [ZnSO4(C10H8N2)2] and C2H6O2 units are connected by intermolecular O—H⋯O hydrogen bonding, which leads to additional stabilization of the structure.
Related literature
For related compounds, see: Liu & Arora (1993); Harvey et al. (2001, 2002); Jian et al. (2004); Rodrigues (2004); Juric et al. (2006); Zhu et al. (2006); Yu et al. (2007); Zhong et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2007); cell CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536809055433/bq2188sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809055433/bq2188Isup2.hkl
The title compound was obtained unexpectedly during an attempt to synthesize mixed-ligand complex of Zn(II) with phenol and melamine via a solvo-thermal reaction. Colorless prism-shaped single crystals of the title compound for X-ray diffraction determination were prepared by 0.2 mmol mixing 2,2'-bipyridine, 0.1 mmol melamine, 0.1 mmol ZnSO4.7H2O, 2.0 ml 1,3-propanediol and 1.0 ml water and then placing them in a thick Pyrex tube, which was sealed and heated to 423 K for 3 days.
All H atoms of 2,2'-bipyridyl were positioned geometrically and allowed to ride on their attached atoms, with C—H =0.93 Å and Uiso(H) = 1.2Ueq(C). The H atoms of 1,2-ethanediol were locate in a difference map and then allowed to ride on their parent atoms, with C—H =0.97 Å and O—H =0.82 Å; Uiso(H) = 1.2Ueq(C) and 1.5Ueq(O).
2,2'-bipyridyl(2,2'-bipy) is a well known neutral didentate ligand. Many metal zinc complexes with 2,2'-bipy have been previously synthesized and reported, such as bis(2,2'-bipyridyl) zinc(II) with diperchlorate (Liu & Arora, 1993), uranyl phosphate (Yu et al., 2007), thiocyanate (Zhong et al., 2007), oxalate (Juric et al., 2006), azide (Jian et al., 2004), acetate (Rodrigues, 2004). Moreover, the crystal structures of zinc complexes with monodente (Harvey et al., 2003), bidentate chelating (Zhu et al., 2006) and bidentate bridging sulfate (Harvey et al., 2000) have been structurally characterized. Recently, we attempt to utilize polydentate and mixed ligands for the design of coordination networks. The title compound [ZnSO4(C10H8N2)2].C2H6O2, (I), which is very similar to the zinc complex with 1,10-phenanthroline instead of 2,2'-bipyridine (Zhu et al., 2006), was obtained unitentionally during an attempt to synthesize mixed-ligand complex of Zn(II) with 2,2'-bipy and melamine via a solvothermal reaction. The
of the title complex has not hitherto been reported.Single crystal X-ray diffraction experiment reveal that a twofold rotation axis (symmetry code: -x, y, - z + 1/2) passes through the Zn, S atoms, and also through the mid-point of C—C bond of the solvent, 1,2-ethanediol molecule. The Zn (II) ions are coordinated by four N atoms from two chelating 2,2'-bipy ligands and two O atoms from a bidentate-chelating salfate ligand, in a distorted octahedral geometry (Fig. 1. and Table 1.). The Zn—N bond distances range from 2.1287 (17)Å to 2.1452 (17)Å and Zn—O bond distance is 2.1811 (15) Å. The N—Zn—N bite angle, O—Zn—O bite angle and the dihedral angle between the two chelating NCCN groups is 76.61 (7) Å, 65.64 (8) Å and 81.1 (1) Å, respectively. The metal complex and solvent components of the title compound are held together by intermolecular O3—H3···O2 hydrogen bonding, which contribute to the stabilization of the structure (Fig.1 and Table 2.).
For related compounds, see: Liu & Arora (1993); Harvey et al. (2000, 2003); Jian et al. (2004); Rodrigues (2004); Juric et al. (2006); Zhu et al. (2006); Yu et al. (2007); Zhong et al. (2007).
Data collection: CrystalClear (Rigaku, 2007); cell
CrystalClear (Rigaku, 2007); data reduction: CrystalClear (Rigaku, 2007); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).[Zn(SO4)(C10H8N2)2]·C2H6O2 | F(000) = 1104 |
Mr = 535.90 | Dx = 1.619 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 5954 reflections |
a = 17.017 (3) Å | θ = 3.4–27.5° |
b = 11.890 (2) Å | µ = 1.26 mm−1 |
c = 12.831 (3) Å | T = 223 K |
β = 122.14 (3)° | Prism, colorless |
V = 2198.3 (10) Å3 | 0.55 × 0.45 × 0.20 mm |
Z = 4 |
Rigaku Mercury CCD diffractometer | 2489 independent reflections |
Radiation source: fine-focus sealed tube | 2155 reflections with I > 2σ(I) |
Graphite Monochromator monochromator | Rint = 0.021 |
Detector resolution: 28.5714 pixels mm-1 | θmax = 27.5°, θmin = 3.4° |
ω scans | h = −22→22 |
Absorption correction: multi-scan (REQAB; Jacobson, 1998) | k = −12→15 |
Tmin = 0.747, Tmax = 1.000 | l = −16→11 |
6138 measured reflections |
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)] = 0.035 | H-atom parameters constrained |
wR(F2) = 0.088 | w = 1/[σ2(Fo2) + (0.0539P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.08 | (Δ/σ)max < 0.001 |
2489 reflections | Δρmax = 0.66 e Å−3 |
156 parameters | Δρmin = −0.50 e Å−3 |
0 restraints | Extinction correction: SHELXL97 (Sheldrick, 2008), Fc*=kFc[1+0.001xFc2λ3/sin(2θ)]-1/4 |
Primary atom site location: structure-invariant direct methods | Extinction coefficient: 0.0173 (10) |
[Zn(SO4)(C10H8N2)2]·C2H6O2 | V = 2198.3 (10) Å3 |
Mr = 535.90 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 17.017 (3) Å | µ = 1.26 mm−1 |
b = 11.890 (2) Å | T = 223 K |
c = 12.831 (3) Å | 0.55 × 0.45 × 0.20 mm |
β = 122.14 (3)° |
Rigaku Mercury CCD diffractometer | 2489 independent reflections |
Absorption correction: multi-scan (REQAB; Jacobson, 1998) | 2155 reflections with I > 2σ(I) |
Tmin = 0.747, Tmax = 1.000 | Rint = 0.021 |
6138 measured reflections |
R[F2 > 2σ(F2)] = 0.035 | 0 restraints |
wR(F2) = 0.088 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.66 e Å−3 |
2489 reflections | Δρmin = −0.50 e Å−3 |
156 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
Zn1 | 0.0000 | 0.30659 (2) | 0.2500 | 0.02342 (14) | |
S1 | 0.0000 | 0.53723 (5) | 0.2500 | 0.02518 (18) | |
N2 | 0.09876 (11) | 0.19245 (12) | 0.38322 (15) | 0.0241 (4) | |
O1 | −0.04900 (9) | 0.46074 (12) | 0.14153 (13) | 0.0304 (3) | |
O2 | 0.06823 (10) | 0.60723 (12) | 0.24320 (15) | 0.0359 (4) | |
C9 | 0.16178 (16) | 0.07532 (17) | 0.5611 (2) | 0.0327 (5) | |
H9A | 0.1567 | 0.0452 | 0.6242 | 0.039* | |
C7 | 0.24124 (14) | 0.09388 (16) | 0.45508 (19) | 0.0280 (4) | |
H7A | 0.2911 | 0.0771 | 0.4469 | 0.034* | |
C8 | 0.23603 (14) | 0.04818 (17) | 0.55093 (19) | 0.0316 (5) | |
H8A | 0.2821 | −0.0001 | 0.6074 | 0.038* | |
C10 | 0.09473 (14) | 0.14816 (18) | 0.47609 (19) | 0.0307 (4) | |
H10A | 0.0450 | 0.1670 | 0.4839 | 0.037* | |
C6 | 0.17124 (13) | 0.16470 (15) | 0.37204 (18) | 0.0233 (4) | |
N1 | 0.10086 (11) | 0.29012 (13) | 0.19914 (16) | 0.0246 (4) | |
C5 | 0.17129 (13) | 0.21769 (16) | 0.26699 (18) | 0.0234 (4) | |
C4 | 0.23903 (15) | 0.19633 (16) | 0.2402 (2) | 0.0299 (4) | |
H4A | 0.2869 | 0.1461 | 0.2880 | 0.036* | |
C1 | 0.09742 (14) | 0.34294 (18) | 0.1043 (2) | 0.0297 (4) | |
H1A | 0.0494 | 0.3935 | 0.0581 | 0.036* | |
C2 | 0.16244 (16) | 0.32515 (18) | 0.0724 (2) | 0.0326 (5) | |
H2A | 0.1578 | 0.3625 | 0.0057 | 0.039* | |
C3 | 0.23444 (15) | 0.25072 (19) | 0.1417 (2) | 0.0336 (5) | |
H3A | 0.2791 | 0.2374 | 0.1223 | 0.040* | |
O3 | 0.02134 (16) | 0.82127 (14) | 0.14925 (19) | 0.0535 (5) | |
H3 | 0.0243 | 0.7602 | 0.1809 | 0.080* | |
C11 | 0.03464 (18) | 0.90768 (19) | 0.2313 (3) | 0.0437 (6) | |
H11A | 0.0316 | 0.9794 | 0.1934 | 0.052* | |
H11B | 0.0963 | 0.9006 | 0.3045 | 0.052* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.02046 (19) | 0.0218 (2) | 0.0288 (2) | 0.000 | 0.01361 (15) | 0.000 |
S1 | 0.0204 (3) | 0.0203 (3) | 0.0342 (4) | 0.000 | 0.0141 (3) | 0.000 |
N2 | 0.0227 (8) | 0.0242 (8) | 0.0248 (8) | −0.0007 (6) | 0.0122 (7) | −0.0012 (6) |
O1 | 0.0258 (7) | 0.0285 (7) | 0.0321 (8) | 0.0005 (6) | 0.0120 (6) | −0.0016 (6) |
O2 | 0.0303 (8) | 0.0280 (7) | 0.0520 (10) | −0.0042 (6) | 0.0236 (7) | 0.0030 (7) |
C9 | 0.0364 (11) | 0.0338 (11) | 0.0273 (11) | 0.0006 (9) | 0.0166 (9) | 0.0038 (9) |
C7 | 0.0228 (9) | 0.0263 (10) | 0.0312 (11) | 0.0022 (8) | 0.0118 (8) | −0.0011 (8) |
C8 | 0.0284 (10) | 0.0290 (10) | 0.0289 (11) | 0.0030 (9) | 0.0094 (9) | 0.0030 (8) |
C10 | 0.0296 (10) | 0.0346 (11) | 0.0303 (10) | 0.0027 (9) | 0.0176 (9) | 0.0011 (9) |
C6 | 0.0223 (9) | 0.0195 (8) | 0.0256 (9) | −0.0022 (7) | 0.0111 (8) | −0.0042 (7) |
N1 | 0.0219 (8) | 0.0242 (8) | 0.0287 (9) | −0.0002 (7) | 0.0140 (7) | 0.0004 (7) |
C5 | 0.0213 (9) | 0.0208 (9) | 0.0261 (9) | −0.0025 (7) | 0.0112 (8) | −0.0037 (7) |
C4 | 0.0256 (10) | 0.0307 (10) | 0.0348 (11) | 0.0036 (8) | 0.0170 (9) | −0.0013 (9) |
C1 | 0.0292 (10) | 0.0297 (10) | 0.0327 (11) | 0.0033 (9) | 0.0182 (9) | 0.0056 (9) |
C2 | 0.0358 (11) | 0.0344 (11) | 0.0337 (11) | −0.0045 (9) | 0.0227 (10) | −0.0008 (9) |
C3 | 0.0323 (11) | 0.0372 (12) | 0.0396 (12) | −0.0011 (10) | 0.0247 (10) | −0.0045 (10) |
O3 | 0.0912 (15) | 0.0382 (9) | 0.0511 (11) | 0.0008 (9) | 0.0513 (11) | 0.0052 (8) |
C11 | 0.0494 (14) | 0.0302 (11) | 0.0551 (16) | −0.0024 (10) | 0.0301 (13) | 0.0025 (10) |
Zn1—N2i | 2.1287 (17) | C8—H8A | 0.9300 |
Zn1—N2 | 2.1287 (17) | C10—H10A | 0.9300 |
Zn1—N1 | 2.1452 (17) | C6—C5 | 1.488 (3) |
Zn1—N1i | 2.1452 (17) | N1—C1 | 1.343 (3) |
Zn1—O1i | 2.1811 (15) | N1—C5 | 1.351 (3) |
Zn1—O1 | 2.1811 (15) | C5—C4 | 1.390 (3) |
Zn1—S1 | 2.7424 (8) | C4—C3 | 1.385 (3) |
S1—O2 | 1.4683 (15) | C4—H4A | 0.9300 |
S1—O2i | 1.4683 (14) | C1—C2 | 1.385 (3) |
S1—O1 | 1.4915 (15) | C1—H1A | 0.9300 |
S1—O1i | 1.4915 (15) | C2—C3 | 1.384 (3) |
N2—C10 | 1.338 (3) | C2—H2A | 0.9300 |
N2—C6 | 1.356 (3) | C3—H3A | 0.9300 |
C9—C8 | 1.376 (3) | O3—C11 | 1.401 (3) |
C9—C10 | 1.385 (3) | O3—H3 | 0.8200 |
C9—H9A | 0.9300 | C11—C11i | 1.490 (5) |
C7—C6 | 1.383 (3) | C11—H11A | 0.9700 |
C7—C8 | 1.390 (3) | C11—H11B | 0.9700 |
C7—H7A | 0.9300 | ||
N2i—Zn1—N2 | 100.78 (9) | C6—C7—C8 | 119.04 (19) |
N2i—Zn1—N1 | 96.61 (7) | C6—C7—H7A | 120.5 |
N2—Zn1—N1 | 76.61 (7) | C8—C7—H7A | 120.5 |
N2i—Zn1—N1i | 76.61 (7) | C9—C8—C7 | 119.1 (2) |
N2—Zn1—N1i | 96.61 (7) | C9—C8—H8A | 120.4 |
N1—Zn1—N1i | 169.52 (9) | C7—C8—H8A | 120.4 |
N2i—Zn1—O1i | 156.73 (6) | N2—C10—C9 | 122.5 (2) |
N2—Zn1—O1i | 98.79 (6) | N2—C10—H10A | 118.8 |
N1—Zn1—O1i | 100.06 (6) | C9—C10—H10A | 118.8 |
N1i—Zn1—O1i | 88.78 (6) | N2—C6—C7 | 121.72 (19) |
N2i—Zn1—O1 | 98.79 (6) | N2—C6—C5 | 115.57 (17) |
N2—Zn1—O1 | 156.73 (6) | C7—C6—C5 | 122.69 (18) |
N1—Zn1—O1 | 88.78 (6) | C1—N1—C5 | 118.56 (17) |
N1i—Zn1—O1 | 100.06 (6) | C1—N1—Zn1 | 125.22 (14) |
O1i—Zn1—O1 | 65.64 (8) | C5—N1—Zn1 | 116.18 (13) |
N2i—Zn1—S1 | 129.61 (4) | N1—C5—C4 | 121.68 (19) |
N2—Zn1—S1 | 129.61 (4) | N1—C5—C6 | 115.19 (17) |
N1—Zn1—S1 | 95.24 (4) | C4—C5—C6 | 123.12 (18) |
N1i—Zn1—S1 | 95.24 (4) | C3—C4—C5 | 119.26 (19) |
O1i—Zn1—S1 | 32.82 (4) | C3—C4—H4A | 120.4 |
O1—Zn1—S1 | 32.82 (4) | C5—C4—H4A | 120.4 |
O2—S1—O2i | 110.95 (12) | N1—C1—C2 | 122.7 (2) |
O2—S1—O1 | 110.94 (9) | N1—C1—H1A | 118.7 |
O2i—S1—O1 | 109.50 (8) | C2—C1—H1A | 118.7 |
O2—S1—O1i | 109.50 (8) | C3—C2—C1 | 118.8 (2) |
O2i—S1—O1i | 110.94 (9) | C3—C2—H2A | 120.6 |
O1—S1—O1i | 104.85 (12) | C1—C2—H2A | 120.6 |
O2—S1—Zn1 | 124.53 (6) | C2—C3—C4 | 119.0 (2) |
O2i—S1—Zn1 | 124.53 (6) | C2—C3—H3A | 120.5 |
O1—S1—Zn1 | 52.43 (6) | C4—C3—H3A | 120.5 |
O1i—S1—Zn1 | 52.43 (6) | C11—O3—H3 | 109.5 |
C10—N2—C6 | 118.62 (17) | O3—C11—C11i | 113.7 (2) |
C10—N2—Zn1 | 125.01 (14) | O3—C11—H11A | 108.8 |
C6—N2—Zn1 | 116.37 (13) | C11i—C11—H11A | 108.8 |
S1—O1—Zn1 | 94.75 (8) | O3—C11—H11B | 108.8 |
C8—C9—C10 | 119.0 (2) | C11i—C11—H11B | 108.8 |
C8—C9—H9A | 120.5 | H11A—C11—H11B | 107.7 |
C10—C9—H9A | 120.5 | ||
N2i—Zn1—S1—O2 | −114.55 (10) | N1i—Zn1—O1—S1 | 84.03 (8) |
N2—Zn1—S1—O2 | 65.45 (10) | O1i—Zn1—O1—S1 | 0.0 |
N1—Zn1—S1—O2 | −11.49 (9) | C10—C9—C8—C7 | −0.5 (3) |
N1i—Zn1—S1—O2 | 168.51 (9) | C6—C7—C8—C9 | −0.5 (3) |
O1i—Zn1—S1—O2 | 88.97 (11) | C6—N2—C10—C9 | 0.1 (3) |
O1—Zn1—S1—O2 | −91.03 (11) | Zn1—N2—C10—C9 | −179.13 (15) |
N2i—Zn1—S1—O2i | 65.45 (10) | C8—C9—C10—N2 | 0.8 (3) |
N2—Zn1—S1—O2i | −114.55 (10) | C10—N2—C6—C7 | −1.2 (3) |
N1—Zn1—S1—O2i | 168.51 (9) | Zn1—N2—C6—C7 | 178.11 (14) |
N1i—Zn1—S1—O2i | −11.49 (9) | C10—N2—C6—C5 | −179.68 (17) |
O1i—Zn1—S1—O2i | −91.03 (11) | Zn1—N2—C6—C5 | −0.4 (2) |
O1—Zn1—S1—O2i | 88.97 (11) | C8—C7—C6—N2 | 1.4 (3) |
N2i—Zn1—S1—O1 | −23.52 (9) | C8—C7—C6—C5 | 179.77 (18) |
N2—Zn1—S1—O1 | 156.48 (9) | N2i—Zn1—N1—C1 | 80.70 (17) |
N1—Zn1—S1—O1 | 79.54 (9) | N2—Zn1—N1—C1 | −179.74 (18) |
N1i—Zn1—S1—O1 | −100.46 (9) | N1i—Zn1—N1—C1 | 129.77 (17) |
O1i—Zn1—S1—O1 | 180.0 | O1i—Zn1—N1—C1 | −83.00 (17) |
N2i—Zn1—S1—O1i | 156.48 (9) | O1—Zn1—N1—C1 | −18.01 (17) |
N2—Zn1—S1—O1i | −23.52 (9) | S1—Zn1—N1—C1 | −50.23 (17) |
N1—Zn1—S1—O1i | −100.46 (9) | N2i—Zn1—N1—C5 | −97.15 (14) |
N1i—Zn1—S1—O1i | 79.54 (9) | N2—Zn1—N1—C5 | 2.41 (13) |
O1—Zn1—S1—O1i | 180.0 | N1i—Zn1—N1—C5 | −48.08 (13) |
N2i—Zn1—N2—C10 | −87.46 (16) | O1i—Zn1—N1—C5 | 99.15 (14) |
N1—Zn1—N2—C10 | 178.23 (17) | O1—Zn1—N1—C5 | 164.14 (14) |
N1i—Zn1—N2—C10 | −9.89 (17) | S1—Zn1—N1—C5 | 131.92 (13) |
O1i—Zn1—N2—C10 | 79.90 (16) | C1—N1—C5—C4 | −0.5 (3) |
O1—Zn1—N2—C10 | 125.73 (18) | Zn1—N1—C5—C4 | 177.47 (15) |
S1—Zn1—N2—C10 | 92.54 (16) | C1—N1—C5—C6 | 178.66 (17) |
N2i—Zn1—N2—C6 | 93.31 (13) | Zn1—N1—C5—C6 | −3.3 (2) |
N1—Zn1—N2—C6 | −1.00 (13) | N2—C6—C5—N1 | 2.5 (2) |
N1i—Zn1—N2—C6 | 170.88 (13) | C7—C6—C5—N1 | −176.01 (17) |
O1i—Zn1—N2—C6 | −99.33 (13) | N2—C6—C5—C4 | −178.35 (18) |
O1—Zn1—N2—C6 | −53.5 (2) | C7—C6—C5—C4 | 3.2 (3) |
S1—Zn1—N2—C6 | −86.69 (13) | N1—C5—C4—C3 | 0.1 (3) |
O2—S1—O1—Zn1 | 118.12 (8) | C6—C5—C4—C3 | −179.02 (18) |
O2i—S1—O1—Zn1 | −119.09 (8) | C5—N1—C1—C2 | 0.8 (3) |
O1i—S1—O1—Zn1 | 0.0 | Zn1—N1—C1—C2 | −177.02 (15) |
N2i—Zn1—O1—S1 | 161.88 (7) | N1—C1—C2—C3 | −0.6 (3) |
N2—Zn1—O1—S1 | −51.09 (18) | C1—C2—C3—C4 | 0.1 (3) |
N1—Zn1—O1—S1 | −101.62 (8) | C5—C4—C3—C2 | 0.1 (3) |
Symmetry code: (i) −x, y, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [Zn(SO4)(C10H8N2)2]·C2H6O2 |
Mr | 535.90 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 223 |
a, b, c (Å) | 17.017 (3), 11.890 (2), 12.831 (3) |
β (°) | 122.14 (3) |
V (Å3) | 2198.3 (10) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 1.26 |
Crystal size (mm) | 0.55 × 0.45 × 0.20 |
Data collection | |
Diffractometer | Rigaku Mercury CCD |
Absorption correction | Multi-scan (REQAB; Jacobson, 1998) |
Tmin, Tmax | 0.747, 1.000 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6138, 2489, 2155 |
Rint | 0.021 |
(sin θ/λ)max (Å−1) | 0.650 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.035, 0.088, 1.08 |
No. of reflections | 2489 |
No. of parameters | 156 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.66, −0.50 |
Computer programs: CrystalClear (Rigaku, 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Zn1—N2 | 2.1287 (17) | S1—O2 | 1.4683 (15) |
Zn1—N1 | 2.1452 (17) | S1—O1 | 1.4915 (15) |
Zn1—O1 | 2.1811 (15) | ||
N2—Zn1—N1 | 76.61 (7) | O1i—Zn1—O1 | 65.64 (8) |
Symmetry code: (i) −x, y, −z+1/2. |
Acknowledgements
The work was supported by Scientific Research Foundation of Nanjing College of Chemical Technology (grant No. NHKY-2010-17).
References
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2,2'-bipyridyl(2,2'-bipy) is a well known neutral didentate ligand. Many metal zinc complexes with 2,2'-bipy have been previously synthesized and reported, such as bis(2,2'-bipyridyl) zinc(II) with diperchlorate (Liu & Arora, 1993), uranyl phosphate (Yu et al., 2007), thiocyanate (Zhong et al., 2007), oxalate (Juric et al., 2006), azide (Jian et al., 2004), acetate (Rodrigues, 2004). Moreover, the crystal structures of zinc complexes with monodente (Harvey et al., 2003), bidentate chelating (Zhu et al., 2006) and bidentate bridging sulfate (Harvey et al., 2000) have been structurally characterized. Recently, we attempt to utilize polydentate and mixed ligands for the design of coordination networks. The title compound [ZnSO4(C10H8N2)2].C2H6O2, (I), which is very similar to the zinc complex with 1,10-phenanthroline instead of 2,2'-bipyridine (Zhu et al., 2006), was obtained unitentionally during an attempt to synthesize mixed-ligand complex of Zn(II) with 2,2'-bipy and melamine via a solvothermal reaction. The crystal structure of the title complex has not hitherto been reported.
Single crystal X-ray diffraction experiment reveal that a twofold rotation axis (symmetry code: -x, y, - z + 1/2) passes through the Zn, S atoms, and also through the mid-point of C—C bond of the solvent, 1,2-ethanediol molecule. The Zn (II) ions are coordinated by four N atoms from two chelating 2,2'-bipy ligands and two O atoms from a bidentate-chelating salfate ligand, in a distorted octahedral geometry (Fig. 1. and Table 1.). The Zn—N bond distances range from 2.1287 (17)Å to 2.1452 (17)Å and Zn—O bond distance is 2.1811 (15) Å. The N—Zn—N bite angle, O—Zn—O bite angle and the dihedral angle between the two chelating NCCN groups is 76.61 (7) Å, 65.64 (8) Å and 81.1 (1) Å, respectively. The metal complex and solvent components of the title compound are held together by intermolecular O3—H3···O2 hydrogen bonding, which contribute to the stabilization of the structure (Fig.1 and Table 2.).