metal-organic compounds
Bis[2-(2-pyridylmethyleneamino)benzenesulfonato-κ3N,N′,O]cobalt(II) dihydrate
aCollege of Chemistry and Chemical Engineering, Guangxi Normal University, Guilin 541004, People's Republic of China, and bKey Laboratory of New Processing Technology for Nonferrous Metals & Materials, Ministry of Education, Guilin University of Technology, Guilin 541004, People's Republic of China
*Correspondence e-mail: 499122835@qq.com
The title complex, [Co(C12H9N2O3S)2]·2H2O, has 2 with the CoII cation located on a twofold rotation axis. Two tridentate 2-(2-pyridylmethyleneamino)benzenesulfonate (paba) ligands chelate to the CoII cation in a distorted octahedral geometry. The pyridine and benzene rings in the paba ligand are oriented at a dihedral angle of 42.86 (13)°. Intermolecular O—H⋯O and C—H⋯O hydrogen bonding is present in the crystal structure.
Related literature
For general background to the coordination chemistry of the sulfonate ligands, see: Jiang et al. (2006). For the isostructural Zn and Cd complexes, see: Cai et al. (2008); Ou-Yang et al. (2008). For the synthesis, see: Casella & Gullotti (1986).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 2004); cell SAINT (Bruker, 2004); 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.
Supporting information
https://doi.org/10.1107/S1600536809043918/xu2642sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809043918/xu2642Isup2.hkl
The potassium salt of 2-(pyridylmethyl)imine-2-benzenesulfonic acid (pabaK) was synthesized according to the literature method (Casella & Gullotti, 1986). To prepare the title complex, pabaK (1 mmol, 0.30 g) was dissolved in methanol (10 ml) at 333 k and an aqueous solution (10 ml) containing Co(AcO)2.4H2O (0.5 mmol, 0.125 g) was added. The mixture was stirred at 333 K for 4 h, then cooled to room temperature and filtered. Red crystals suitable for X-ray diffraction were obtained by slowly evaporation over several days, with a yield of 60%. Elemental analysis, found (%): C: 46.59; H: 4.04; N: 9.11; S: 10.25, calc (%): C: 46.64; H: 3.56; N: 9.07; S: 10.36.
H atoms bonded to C atoms were positioned geometrically with the C—H distance of 0.93 A, and treated as riding atoms, with Uiso(H) = 1.2Ueq(C). Water H atoms were placed in a difference Fourier map and refined as riding in as-found relative positions with Uiso(H) = 1.5Ueq(O).
The design of supermolecular coordination complexes in which both coordination bonds and hydrogen bonds take part in the self-assembly chemistry have recently generated increasing interest. Our group have focused on the exploration of the coordination chemistry of the sulfonate ligands (Jiang et al.., 2006). We report here the structure of the title complex (Fig. 1).
The CoII complex is isostructural with [Zn(Paba)2].2H2O and [Cd(Paba)2].2H2O whose structure has been described in detail (Cai et al.., 2008; Ou-Yang et al.., 2008). The Co(II) atom lies on the twofold rotation axis and is coordinated by pyridine N, imine N and sulfonate O atoms from two paba- ligands with a distorted octahedral geometry (Table 1). This structure is similar to complexes with N,N',O-tridentate donor ligands (Casella et al.., 1986). The O—H···O and C—H···O hydrogen bonding (Table 2) is present in the crystal structure.
For general background to the coordination chemistry of the sulfonate ligands, see: Jiang, et al. (2006). For the isostructural Zn and Cd complexes, see: Cai et al. (2008); Ou-Yang et al. (2008). For the synthesis, see: Casella & Gullotti (1986).
Data collection: SMART (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. The molecular structure of the complex, showing the atom-numbering scheme. Symmetry code: -x + 2, y, -z + 1/2. |
[Co(C12H9N2O3S)2]·2H2O | F(000) = 1268 |
Mr = 617.53 | Dx = 1.584 Mg m−3 |
Orthorhombic, Pbcn | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2n 2ab | Cell parameters from 4317 reflections |
a = 19.636 (2) Å | θ = 2.5–24.7° |
b = 8.0973 (8) Å | µ = 0.88 mm−1 |
c = 16.2819 (16) Å | T = 291 K |
V = 2588.8 (4) Å3 | Block, red |
Z = 4 | 0.31 × 0.25 × 0.07 mm |
Bruker SMART CCD area-detector diffractometer | 2410 independent reflections |
Radiation source: fine-focus sealed tube | 1960 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.039 |
φ and ω scans | θmax = 25.5°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −23→23 |
Tmin = 0.771, Tmax = 0.939 | k = −9→9 |
17970 measured reflections | l = −19→19 |
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)] = 0.032 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0467P)2 + 1.5384P] where P = (Fo2 + 2Fc2)/3 |
2410 reflections | (Δ/σ)max = 0.001 |
177 parameters | Δρmax = 0.44 e Å−3 |
0 restraints | Δρmin = −0.46 e Å−3 |
[Co(C12H9N2O3S)2]·2H2O | V = 2588.8 (4) Å3 |
Mr = 617.53 | Z = 4 |
Orthorhombic, Pbcn | Mo Kα radiation |
a = 19.636 (2) Å | µ = 0.88 mm−1 |
b = 8.0973 (8) Å | T = 291 K |
c = 16.2819 (16) Å | 0.31 × 0.25 × 0.07 mm |
Bruker SMART CCD area-detector diffractometer | 2410 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1960 reflections with I > 2σ(I) |
Tmin = 0.771, Tmax = 0.939 | Rint = 0.039 |
17970 measured reflections |
R[F2 > 2σ(F2)] = 0.032 | 0 restraints |
wR(F2) = 0.089 | H-atom parameters constrained |
S = 1.02 | Δρmax = 0.44 e Å−3 |
2410 reflections | Δρmin = −0.46 e Å−3 |
177 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 | ||
Co1 | 1.0000 | 0.68407 (5) | 0.2500 | 0.02746 (14) | |
S1 | 0.87615 (3) | 0.82456 (8) | 0.34750 (3) | 0.03191 (17) | |
O1 | 0.79780 (13) | 0.4090 (4) | 0.44814 (16) | 0.1166 (13) | |
H1W | 0.7550 | 0.4121 | 0.4400 | 0.175* | |
H2W | 0.8188 | 0.4425 | 0.4064 | 0.175* | |
O2 | 0.84711 (9) | 0.6617 (2) | 0.34011 (11) | 0.0477 (5) | |
O3 | 0.95125 (8) | 0.8220 (2) | 0.34231 (9) | 0.0350 (4) | |
O4 | 0.85336 (9) | 0.9170 (2) | 0.41814 (10) | 0.0438 (4) | |
N1 | 0.90902 (9) | 0.7307 (2) | 0.17616 (11) | 0.0297 (4) | |
N2 | 0.99827 (10) | 0.4858 (3) | 0.16249 (12) | 0.0335 (5) | |
C1 | 0.85084 (11) | 0.9367 (3) | 0.25933 (13) | 0.0310 (5) | |
C2 | 0.81355 (13) | 1.0800 (3) | 0.26678 (15) | 0.0413 (6) | |
H2 | 0.8016 | 1.1189 | 0.3186 | 0.050* | |
C3 | 0.79387 (15) | 1.1660 (4) | 0.19754 (18) | 0.0534 (8) | |
H3 | 0.7691 | 1.2634 | 0.2027 | 0.064* | |
C4 | 0.81090 (14) | 1.1074 (4) | 0.12064 (16) | 0.0538 (8) | |
H4 | 0.7974 | 1.1653 | 0.0741 | 0.065* | |
C5 | 0.84796 (13) | 0.9631 (4) | 0.11249 (15) | 0.0444 (7) | |
H5 | 0.8593 | 0.9246 | 0.0604 | 0.053* | |
C6 | 0.86829 (11) | 0.8756 (3) | 0.18134 (14) | 0.0309 (5) | |
C7 | 0.89905 (12) | 0.6270 (3) | 0.11848 (14) | 0.0362 (6) | |
H7 | 0.8624 | 0.6399 | 0.0828 | 0.043* | |
C8 | 0.94554 (12) | 0.4883 (3) | 0.10895 (13) | 0.0330 (5) | |
C9 | 0.93760 (15) | 0.3705 (3) | 0.04869 (16) | 0.0469 (7) | |
H9 | 0.9008 | 0.3749 | 0.0128 | 0.056* | |
C10 | 0.98533 (16) | 0.2455 (4) | 0.04253 (18) | 0.0534 (7) | |
H10 | 0.9808 | 0.1639 | 0.0027 | 0.064* | |
C11 | 1.03915 (16) | 0.2432 (3) | 0.09565 (18) | 0.0503 (7) | |
H11 | 1.0722 | 0.1612 | 0.0919 | 0.060* | |
C12 | 1.04376 (14) | 0.3648 (3) | 0.15512 (16) | 0.0428 (6) | |
H12 | 1.0802 | 0.3618 | 0.1915 | 0.051* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Co1 | 0.0260 (2) | 0.0333 (3) | 0.0231 (2) | 0.000 | −0.00434 (16) | 0.000 |
S1 | 0.0305 (3) | 0.0415 (4) | 0.0238 (3) | −0.0001 (3) | 0.0004 (2) | 0.0016 (2) |
O1 | 0.0579 (15) | 0.193 (3) | 0.099 (2) | −0.0322 (18) | −0.0192 (14) | 0.079 (2) |
O2 | 0.0511 (11) | 0.0469 (11) | 0.0452 (11) | −0.0111 (9) | −0.0011 (9) | 0.0076 (9) |
O3 | 0.0292 (8) | 0.0485 (10) | 0.0272 (8) | 0.0047 (7) | −0.0040 (7) | −0.0038 (7) |
O4 | 0.0425 (10) | 0.0625 (12) | 0.0263 (9) | 0.0069 (9) | 0.0045 (7) | −0.0037 (8) |
N1 | 0.0253 (9) | 0.0408 (11) | 0.0231 (10) | 0.0000 (8) | −0.0006 (7) | −0.0016 (9) |
N2 | 0.0383 (11) | 0.0336 (11) | 0.0287 (10) | 0.0019 (9) | −0.0042 (8) | −0.0010 (8) |
C1 | 0.0238 (11) | 0.0400 (13) | 0.0293 (12) | −0.0001 (10) | −0.0006 (9) | 0.0029 (10) |
C2 | 0.0354 (14) | 0.0526 (16) | 0.0357 (13) | 0.0096 (12) | 0.0024 (11) | −0.0009 (12) |
C3 | 0.0490 (16) | 0.0553 (18) | 0.0560 (18) | 0.0229 (14) | 0.0011 (14) | 0.0072 (14) |
C4 | 0.0512 (17) | 0.072 (2) | 0.0377 (15) | 0.0214 (15) | −0.0016 (12) | 0.0139 (14) |
C5 | 0.0389 (14) | 0.0639 (19) | 0.0305 (13) | 0.0118 (13) | 0.0013 (11) | 0.0054 (12) |
C6 | 0.0229 (11) | 0.0433 (13) | 0.0266 (11) | 0.0005 (10) | −0.0010 (9) | 0.0015 (11) |
C7 | 0.0301 (12) | 0.0503 (15) | 0.0282 (12) | −0.0005 (11) | −0.0073 (10) | −0.0023 (11) |
C8 | 0.0342 (12) | 0.0382 (13) | 0.0265 (12) | −0.0024 (11) | −0.0032 (10) | −0.0016 (10) |
C9 | 0.0526 (16) | 0.0487 (16) | 0.0395 (15) | −0.0023 (13) | −0.0109 (12) | −0.0098 (13) |
C10 | 0.073 (2) | 0.0435 (16) | 0.0433 (17) | 0.0039 (15) | −0.0087 (15) | −0.0127 (13) |
C11 | 0.0646 (19) | 0.0376 (15) | 0.0488 (17) | 0.0134 (14) | −0.0012 (14) | −0.0036 (13) |
C12 | 0.0492 (16) | 0.0410 (15) | 0.0381 (14) | 0.0070 (12) | −0.0085 (12) | −0.0004 (12) |
Co1—O3 | 2.1029 (16) | C2—C3 | 1.380 (4) |
Co1—O3i | 2.1029 (16) | C2—H2 | 0.9300 |
Co1—N1i | 2.1862 (18) | C3—C4 | 1.380 (4) |
Co1—N1 | 2.1863 (18) | C3—H3 | 0.9300 |
Co1—N2 | 2.147 (2) | C4—C5 | 1.383 (4) |
Co1—N2i | 2.147 (2) | C4—H4 | 0.9300 |
S1—O2 | 1.4421 (18) | C5—C6 | 1.385 (3) |
S1—O4 | 1.4433 (17) | C5—H5 | 0.9300 |
S1—O3 | 1.4773 (17) | C7—C8 | 1.456 (3) |
S1—C1 | 1.770 (2) | C7—H7 | 0.9300 |
O1—H1W | 0.8502 | C8—C9 | 1.378 (3) |
O1—H2W | 0.8402 | C9—C10 | 1.383 (4) |
N1—C7 | 1.275 (3) | C9—H9 | 0.9300 |
N1—C6 | 1.422 (3) | C10—C11 | 1.366 (4) |
N2—C12 | 1.331 (3) | C10—H10 | 0.9300 |
N2—C8 | 1.354 (3) | C11—C12 | 1.384 (4) |
C1—C2 | 1.377 (3) | C11—H11 | 0.9300 |
C1—C6 | 1.406 (3) | C12—H12 | 0.9300 |
O3—Co1—O3i | 115.85 (9) | C1—C2—H2 | 119.9 |
O3—Co1—N2 | 149.80 (7) | C3—C2—H2 | 119.9 |
O3i—Co1—N2 | 85.98 (7) | C2—C3—C4 | 120.0 (3) |
O3—Co1—N2i | 85.98 (7) | C2—C3—H3 | 120.0 |
O3i—Co1—N2i | 149.80 (7) | C4—C3—H3 | 120.0 |
N2—Co1—N2i | 83.20 (11) | C3—C4—C5 | 120.3 (2) |
O3—Co1—N1i | 83.51 (6) | C3—C4—H4 | 119.8 |
O3i—Co1—N1i | 85.95 (6) | C5—C4—H4 | 119.8 |
N2—Co1—N1i | 120.48 (7) | C4—C5—C6 | 120.4 (2) |
N2i—Co1—N1i | 75.60 (7) | C4—C5—H5 | 119.8 |
O3—Co1—N1 | 85.95 (6) | C6—C5—H5 | 119.8 |
O3i—Co1—N1 | 83.51 (6) | C5—C6—C1 | 118.7 (2) |
N2—Co1—N1 | 75.60 (7) | C5—C6—N1 | 122.4 (2) |
N2i—Co1—N1 | 120.48 (7) | C1—C6—N1 | 118.78 (19) |
N1i—Co1—N1 | 160.09 (11) | N1—C7—C8 | 119.4 (2) |
O2—S1—O4 | 114.72 (11) | N1—C7—H7 | 120.3 |
O2—S1—O3 | 112.14 (11) | C8—C7—H7 | 120.3 |
O4—S1—O3 | 111.25 (10) | N2—C8—C9 | 122.3 (2) |
O2—S1—C1 | 106.90 (11) | N2—C8—C7 | 115.0 (2) |
O4—S1—C1 | 107.06 (11) | C9—C8—C7 | 122.6 (2) |
O3—S1—C1 | 103.96 (10) | C8—C9—C10 | 118.8 (2) |
H1W—O1—H2W | 110.5 | C8—C9—H9 | 120.6 |
S1—O3—Co1 | 120.19 (9) | C10—C9—H9 | 120.6 |
C7—N1—C6 | 120.03 (19) | C11—C10—C9 | 119.2 (3) |
C7—N1—Co1 | 114.63 (16) | C11—C10—H10 | 120.4 |
C6—N1—Co1 | 124.72 (14) | C9—C10—H10 | 120.4 |
C12—N2—C8 | 117.8 (2) | C10—C11—C12 | 118.9 (3) |
C12—N2—Co1 | 126.85 (16) | C10—C11—H11 | 120.5 |
C8—N2—Co1 | 115.36 (16) | C12—C11—H11 | 120.5 |
C2—C1—C6 | 120.4 (2) | N2—C12—C11 | 122.9 (2) |
C2—C1—S1 | 120.67 (18) | N2—C12—H12 | 118.6 |
C6—C1—S1 | 118.91 (18) | C11—C12—H12 | 118.6 |
C1—C2—C3 | 120.1 (2) |
Symmetry code: (i) −x+2, y, −z+1/2. |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1W···O4ii | 0.85 | 2.16 | 3.009 (3) | 179 |
O1—H2W···O2 | 0.84 | 2.15 | 2.867 (3) | 143 |
C7—H7···O1iii | 0.93 | 2.56 | 3.425 (3) | 154 |
C11—H11···O4iv | 0.93 | 2.46 | 3.389 (3) | 172 |
Symmetry codes: (ii) −x+3/2, y−1/2, z; (iii) x, −y+1, z−1/2; (iv) −x+2, y−1, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [Co(C12H9N2O3S)2]·2H2O |
Mr | 617.53 |
Crystal system, space group | Orthorhombic, Pbcn |
Temperature (K) | 291 |
a, b, c (Å) | 19.636 (2), 8.0973 (8), 16.2819 (16) |
V (Å3) | 2588.8 (4) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.88 |
Crystal size (mm) | 0.31 × 0.25 × 0.07 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.771, 0.939 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 17970, 2410, 1960 |
Rint | 0.039 |
(sin θ/λ)max (Å−1) | 0.606 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.032, 0.089, 1.02 |
No. of reflections | 2410 |
No. of parameters | 177 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.44, −0.46 |
Computer programs: SMART (Bruker, 2004), SAINT (Bruker, 2004), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1W···O4i | 0.85 | 2.16 | 3.009 (3) | 179.2 |
O1—H2W···O2 | 0.84 | 2.15 | 2.867 (3) | 143.1 |
C7—H7···O1ii | 0.93 | 2.56 | 3.425 (3) | 154 |
C11—H11···O4iii | 0.93 | 2.46 | 3.389 (3) | 172 |
Symmetry codes: (i) −x+3/2, y−1/2, z; (ii) x, −y+1, z−1/2; (iii) −x+2, y−1, −z+1/2. |
Acknowledgements
This work was supported by the Science Foundation of the Guangxi Zhuang Autonomous Region of China (grant No. 0731053).
References
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The design of supermolecular coordination complexes in which both coordination bonds and hydrogen bonds take part in the self-assembly chemistry have recently generated increasing interest. Our group have focused on the exploration of the coordination chemistry of the sulfonate ligands (Jiang et al.., 2006). We report here the structure of the title complex (Fig. 1).
The CoII complex is isostructural with [Zn(Paba)2].2H2O and [Cd(Paba)2].2H2O whose structure has been described in detail (Cai et al.., 2008; Ou-Yang et al.., 2008). The Co(II) atom lies on the twofold rotation axis and is coordinated by pyridine N, imine N and sulfonate O atoms from two paba- ligands with a distorted octahedral geometry (Table 1). This structure is similar to complexes with N,N',O-tridentate donor ligands (Casella et al.., 1986). The O—H···O and C—H···O hydrogen bonding (Table 2) is present in the crystal structure.