metal-organic compounds
trans-Bis[2-(piperazin-1-yl)ethanamine]bis(saccharinato)cobalt(II)
aDepartment of Chemistry, Faculty of Arts and Sciences, University of Uludag, 16059 Gorukle, Bursa, Turkey, bDepartment of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayis University, 55019 Kurupelit, Samsun, Turkey, and cDepartment of Physics, Faculty of Arts and Sciences, Ondokuz Mayis University, 55019 Kurupelit, Samsun, Turkey
*Correspondence e-mail: vtyilmaz@uludag.edu.tr
In the centrosymmetric title complex, [Co(C7H4NO3S)2(C6H15N3)2], the CoII ion is coordinated by two saccharinate (sac) anions and two neutral 2-piperazin-1-ylethanamine (ppzea) ligands, showing a distorted octahedral coordination. Sac is O-bonded via the carbonyl group, while ppzea acts as an N,N′-bidentate chelating ligand. The molecules are connected by N—H⋯N and N—H⋯O hydrogen bonds, forming a linear chain running parallel to the crystallographic a axis. The compound is isostructural with the reported Ni, Zn, and Cd analogues.
Related literature
For the structures of the analogous Ni, Zn, and Cd complexes, see: Guney et al. (2005); Yilmaz et al. (2005). For a review of saccharinate complexes, see: Baran & Yilmaz (2006).
Experimental
Crystal data
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Refinement
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Data collection: X-AREA (Stoe & Cie, 2002); cell X-AREA; data reduction: X-RED (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).
Supporting information
https://doi.org/10.1107/S1600536807062745/sq2006sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807062745/sq2006Isup2.hkl
A 20 ml e thanol solution containing ppzea (0.26 g, 2 mmol) and sacH (0.36 g, 2 mmol) was mixed with a 20 ml e thanol solution of Co(OAc)2.4H2O (0.25 g, 1 mmol). The reaction solution was stirred for 1 h at room temperature. Red-brown prisms were obtained after 5 days by slow evaporation of the solution at room temperature.
All N-bonded H atoms were refined freely, while C-bonded H atoms were placed in idealized locations (C—H = 0.95 Å) and included as riding atoms with Uiso(H) = 1.2*Ueq(C). The instruction DFIX was applied to the N4—H4A bond to increase its length to a reasonable value.
The saccharinate (sac) anion is formed by the deprotonation of saccharin and coordinates to various metal ions rather easily (Baran & Yilmaz 2006). In the course of the synthesis and structural characterization of mixed ligand–metal complexes of sac, recently we reported nickel(II), zinc(II) and cadmium(II) complexes of sac with 2-piperazin-1-ylethanamine (ppzea) (Guney et al., 2005; Yilmaz et al., 2005). In this paper, the crystal and molecular structure of the isomorphous sac complex of cobalt(II) with ppzea (I) is reported.
The title complex (I) is isostructural with the nickel(II), zinc(II) and cadmium(II) complexes of the same ligands (Guney et al., 2005; Yilmaz et al., 2005) and shows similar structural characteristics. In these isostructural complexes, the MII ions show an elongated octahedral geometry, possibly due to a poor overlap of the sp3 lone pair on the N atom of ppz with the valence orbitals of the metal ions. As shown in Fig. 1, (I) is a mononuclear CoII complex, in which the CoII ion lies on a centre of inversion and also exhibits an elongated distorted octahedral geometry with two neutral bidendate (N,N') ppzea ligands and two anionic sac ligands. In spite of the common N-coordination mode, sac coordinates to CoII through the carbonyl O atom. The puckering parameters of the ppz ring system in (I) are q = 0.538 (2)Å and Θ = 5.4 (2)°, suggesting that the ppz rings exhibit a typical (e.g., cyclohexane-like) chair conformation.
The amine hydrogen atoms of ppzea form intramolecular hydrogen bonds with the negatively charged N atom of sac. The individual molecules are linked by N—H···N and N—H···O hydrogen bonds, involving the amine H atoms of ppzea and the ring N atom of ppzea and the sulfonyl O atoms of sac, forming a linear chain running paralel to the crystallographic a axis.
For the structures of the analogous Ni, Zn, and Cd complexes, see: Guney et al. (2005); Yilmaz et al. (2005). For a review of saccharinate complexes, see: Baran & Yilmaz (2006).
Data collection: X-AREA (Stoe & Cie, 2002); cell
X-AREA (Stoe & Cie, 2002); data reduction: X-RED (Stoe & Cie, 2002); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: ORTEP-3 (Farrugia, 1997); software used to prepare material for publication: WinGX (Farrugia, 1999).Fig. 1. The molecular structure of (I) showing 30% displacement ellipsoids (arbitrary spheres for the H atoms). Symmetry code: (i) -x + 1, -y + 1, -z + 1. The intramolecular N—H···N hydrogen bonds are indicated by dashed lines. |
[Co(C7H4NO3S)2(C6H15N3)2] | Z = 1 |
Mr = 681.69 | F(000) = 357 |
Triclinic, P1 | Dx = 1.531 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 8.4294 (7) Å | Cell parameters from 16784 reflections |
b = 9.3742 (10) Å | θ = 2.0–28.0° |
c = 11.5618 (10) Å | µ = 0.78 mm−1 |
α = 93.651 (8)° | T = 293 K |
β = 110.473 (6)° | Prism, light brown |
γ = 116.486 (13)° | 0.58 × 0.41 × 0.25 mm |
V = 739.31 (17) Å3 |
Stoe IPDS 2 diffractometer | 2913 independent reflections |
Radiation source: fine-focus sealed tube | 2635 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.103 |
Detector resolution: 6.67 pixels mm-1 | θmax = 26.0°, θmin = 2.0° |
rotation method scans | h = −10→10 |
Absorption correction: integration (X-RED; Stoe & Cie, 2002) | k = −10→11 |
Tmin = 0.721, Tmax = 0.865 | l = −14→14 |
9652 measured reflections |
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)] = 0.033 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.094 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | w = 1/[σ2(Fo2) + (0.0416P)2 + 0.1493P] where P = (Fo2 + 2Fc2)/3 |
2913 reflections | (Δ/σ)max < 0.001 |
208 parameters | Δρmax = 0.47 e Å−3 |
1 restraint | Δρmin = −0.64 e Å−3 |
[Co(C7H4NO3S)2(C6H15N3)2] | γ = 116.486 (13)° |
Mr = 681.69 | V = 739.31 (17) Å3 |
Triclinic, P1 | Z = 1 |
a = 8.4294 (7) Å | Mo Kα radiation |
b = 9.3742 (10) Å | µ = 0.78 mm−1 |
c = 11.5618 (10) Å | T = 293 K |
α = 93.651 (8)° | 0.58 × 0.41 × 0.25 mm |
β = 110.473 (6)° |
Stoe IPDS 2 diffractometer | 2913 independent reflections |
Absorption correction: integration (X-RED; Stoe & Cie, 2002) | 2635 reflections with I > 2σ(I) |
Tmin = 0.721, Tmax = 0.865 | Rint = 0.103 |
9652 measured reflections |
R[F2 > 2σ(F2)] = 0.033 | 1 restraint |
wR(F2) = 0.094 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.07 | Δρmax = 0.47 e Å−3 |
2913 reflections | Δρmin = −0.64 e Å−3 |
208 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 | 0.5000 | 0.5000 | 0.5000 | 0.02842 (12) | |
S1 | 0.60105 (7) | 0.20581 (6) | 0.86106 (4) | 0.03467 (14) | |
O1 | 0.4721 (2) | 0.46565 (17) | 0.67018 (13) | 0.0386 (3) | |
O2 | 0.7830 (2) | 0.2754 (2) | 0.97136 (15) | 0.0540 (4) | |
O3 | 0.5203 (3) | 0.03573 (19) | 0.79884 (17) | 0.0557 (4) | |
N1 | 0.6138 (2) | 0.3163 (2) | 0.75875 (16) | 0.0379 (4) | |
N2 | 0.4126 (2) | 0.6783 (2) | 0.50483 (16) | 0.0324 (3) | |
N3 | 0.8077 (2) | 0.73527 (18) | 0.62659 (14) | 0.0312 (3) | |
N4 | 1.1486 (2) | 0.7105 (2) | 0.6325 (2) | 0.0498 (5) | |
C1 | 0.4967 (3) | 0.3785 (2) | 0.74533 (16) | 0.0313 (4) | |
C2 | 0.3873 (3) | 0.3351 (2) | 0.82672 (17) | 0.0311 (4) | |
C3 | 0.4282 (3) | 0.2328 (2) | 0.89749 (17) | 0.0332 (4) | |
C4 | 0.3404 (3) | 0.1714 (3) | 0.9774 (2) | 0.0441 (5) | |
H4 | 0.3693 | 0.1030 | 1.0251 | 0.053* | |
C5 | 0.2076 (3) | 0.2162 (3) | 0.9835 (2) | 0.0501 (5) | |
H5 | 0.1437 | 0.1752 | 1.0352 | 0.060* | |
C6 | 0.1672 (3) | 0.3207 (3) | 0.9146 (2) | 0.0508 (5) | |
H6 | 0.0790 | 0.3508 | 0.9219 | 0.061* | |
C7 | 0.2570 (3) | 0.3805 (3) | 0.8352 (2) | 0.0436 (5) | |
H7 | 0.2298 | 0.4502 | 0.7884 | 0.052* | |
C8 | 0.5815 (3) | 0.8468 (2) | 0.5672 (2) | 0.0379 (4) | |
H8A | 0.5428 | 0.9166 | 0.6017 | 0.046* | |
H8B | 0.6277 | 0.8934 | 0.5052 | 0.046* | |
C9 | 0.7420 (3) | 0.8403 (2) | 0.67326 (19) | 0.0381 (4) | |
H9A | 0.8524 | 0.9514 | 0.7150 | 0.046* | |
H9B | 0.6957 | 0.7976 | 0.7363 | 0.046* | |
C10 | 0.9221 (3) | 0.8211 (2) | 0.5561 (2) | 0.0405 (4) | |
H10A | 1.0226 | 0.9321 | 0.6082 | 0.049* | |
H10B | 0.8365 | 0.8297 | 0.4785 | 0.049* | |
C11 | 1.0174 (3) | 0.7314 (3) | 0.5215 (2) | 0.0475 (5) | |
H11A | 0.9159 | 0.6234 | 0.4642 | 0.057* | |
H11B | 1.0910 | 0.7925 | 0.4759 | 0.057* | |
C12 | 1.0468 (3) | 0.6362 (3) | 0.7102 (2) | 0.0448 (5) | |
H12A | 1.1410 | 0.6398 | 0.7898 | 0.054* | |
H12B | 0.9525 | 0.5210 | 0.6657 | 0.054* | |
C13 | 0.9411 (3) | 0.7169 (3) | 0.74108 (18) | 0.0390 (4) | |
H13A | 0.8658 | 0.6515 | 0.7842 | 0.047* | |
H13B | 1.0371 | 0.8253 | 0.7997 | 0.047* | |
H2A | 0.348 (3) | 0.681 (3) | 0.424 (2) | 0.043 (6)* | |
H2B | 0.337 (3) | 0.655 (3) | 0.543 (2) | 0.040 (6)* | |
H4A | 1.244 (3) | 0.804 (2) | 0.677 (3) | 0.064 (8)* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Co1 | 0.0362 (2) | 0.03155 (19) | 0.02755 (19) | 0.02107 (15) | 0.01746 (14) | 0.01371 (14) |
S1 | 0.0412 (3) | 0.0402 (3) | 0.0304 (2) | 0.0253 (2) | 0.0159 (2) | 0.01366 (19) |
O1 | 0.0519 (8) | 0.0450 (7) | 0.0335 (7) | 0.0294 (6) | 0.0246 (6) | 0.0217 (6) |
O2 | 0.0454 (8) | 0.0778 (11) | 0.0397 (8) | 0.0367 (8) | 0.0107 (7) | 0.0189 (8) |
O3 | 0.0727 (10) | 0.0430 (8) | 0.0596 (10) | 0.0346 (8) | 0.0296 (8) | 0.0114 (7) |
N1 | 0.0430 (8) | 0.0491 (9) | 0.0348 (8) | 0.0276 (7) | 0.0228 (7) | 0.0197 (7) |
N2 | 0.0360 (8) | 0.0385 (8) | 0.0332 (8) | 0.0238 (7) | 0.0178 (7) | 0.0141 (7) |
N3 | 0.0333 (7) | 0.0337 (7) | 0.0310 (7) | 0.0190 (6) | 0.0150 (6) | 0.0102 (6) |
N4 | 0.0321 (9) | 0.0534 (11) | 0.0560 (12) | 0.0198 (8) | 0.0152 (8) | −0.0008 (9) |
C1 | 0.0357 (9) | 0.0347 (8) | 0.0249 (8) | 0.0176 (7) | 0.0141 (7) | 0.0094 (7) |
C2 | 0.0333 (8) | 0.0336 (8) | 0.0267 (8) | 0.0158 (7) | 0.0139 (7) | 0.0096 (7) |
C3 | 0.0369 (9) | 0.0344 (9) | 0.0288 (9) | 0.0169 (7) | 0.0154 (7) | 0.0104 (7) |
C4 | 0.0558 (12) | 0.0434 (10) | 0.0360 (10) | 0.0218 (10) | 0.0251 (9) | 0.0181 (9) |
C5 | 0.0530 (12) | 0.0553 (12) | 0.0423 (11) | 0.0178 (10) | 0.0330 (10) | 0.0128 (10) |
C6 | 0.0481 (12) | 0.0639 (14) | 0.0501 (13) | 0.0302 (11) | 0.0289 (10) | 0.0108 (11) |
C7 | 0.0504 (11) | 0.0519 (11) | 0.0425 (11) | 0.0327 (10) | 0.0239 (9) | 0.0181 (9) |
C8 | 0.0467 (10) | 0.0328 (9) | 0.0447 (11) | 0.0256 (8) | 0.0222 (9) | 0.0134 (8) |
C9 | 0.0427 (10) | 0.0347 (9) | 0.0366 (10) | 0.0208 (8) | 0.0155 (8) | 0.0037 (8) |
C10 | 0.0393 (10) | 0.0368 (9) | 0.0458 (11) | 0.0156 (8) | 0.0226 (8) | 0.0144 (8) |
C11 | 0.0425 (11) | 0.0496 (12) | 0.0512 (12) | 0.0181 (9) | 0.0280 (9) | 0.0087 (10) |
C12 | 0.0377 (10) | 0.0491 (11) | 0.0437 (11) | 0.0267 (9) | 0.0077 (8) | 0.0057 (9) |
C13 | 0.0378 (10) | 0.0454 (10) | 0.0320 (9) | 0.0229 (8) | 0.0104 (8) | 0.0086 (8) |
Co1—O1i | 2.0897 (13) | C3—C4 | 1.378 (3) |
Co1—O1 | 2.0897 (13) | C4—C5 | 1.380 (3) |
Co1—N2i | 2.1101 (16) | C4—H4 | 0.9300 |
Co1—N2 | 2.1101 (16) | C5—C6 | 1.385 (4) |
Co1—N3 | 2.3589 (16) | C5—H5 | 0.9300 |
Co1—N3i | 2.3589 (16) | C6—C7 | 1.379 (3) |
S1—O2 | 1.4274 (15) | C6—H6 | 0.9300 |
S1—O3 | 1.4376 (16) | C7—H7 | 0.9300 |
S1—N1 | 1.6214 (16) | C8—C9 | 1.504 (3) |
S1—C3 | 1.763 (2) | C8—H8A | 0.9700 |
O1—C1 | 1.257 (2) | C8—H8B | 0.9700 |
N1—C1 | 1.326 (3) | C9—H9A | 0.9700 |
N2—C8 | 1.474 (2) | C9—H9B | 0.9700 |
N2—H2A | 0.91 (3) | C10—C11 | 1.515 (3) |
N2—H2B | 0.85 (3) | C10—H10A | 0.9700 |
N3—C10 | 1.478 (3) | C10—H10B | 0.9700 |
N3—C9 | 1.482 (2) | C11—H11A | 0.9700 |
N3—C13 | 1.485 (2) | C11—H11B | 0.9700 |
N4—C12 | 1.454 (3) | C12—C13 | 1.512 (3) |
N4—C11 | 1.463 (3) | C12—H12A | 0.9700 |
N4—H4A | 0.838 (17) | C12—H12B | 0.9700 |
C1—C2 | 1.490 (3) | C13—H13A | 0.9700 |
C2—C7 | 1.373 (3) | C13—H13B | 0.9700 |
C2—C3 | 1.380 (2) | ||
O1i—Co1—O1 | 180.000 (1) | C3—C4—H4 | 121.5 |
O1i—Co1—N2i | 88.47 (6) | C5—C4—H4 | 121.5 |
O1—Co1—N2i | 91.53 (6) | C4—C5—C6 | 121.7 (2) |
O1i—Co1—N2 | 91.53 (6) | C4—C5—H5 | 119.2 |
O1—Co1—N2 | 88.47 (6) | C6—C5—H5 | 119.2 |
N2i—Co1—N2 | 180.000 (1) | C7—C6—C5 | 120.3 (2) |
O1i—Co1—N3 | 92.94 (6) | C7—C6—H6 | 119.9 |
O1—Co1—N3 | 87.06 (6) | C5—C6—H6 | 119.9 |
N2i—Co1—N3 | 99.38 (6) | C2—C7—C6 | 118.75 (19) |
N2—Co1—N3 | 80.62 (6) | C2—C7—H7 | 120.6 |
O1i—Co1—N3i | 87.06 (5) | C6—C7—H7 | 120.6 |
O1—Co1—N3i | 92.94 (6) | N2—C8—C9 | 109.12 (15) |
N2i—Co1—N3i | 80.62 (6) | N2—C8—H8A | 109.9 |
N2—Co1—N3i | 99.38 (6) | C9—C8—H8A | 109.9 |
N3—Co1—N3i | 180.0 | N2—C8—H8B | 109.9 |
O2—S1—O3 | 114.88 (11) | C9—C8—H8B | 109.9 |
O2—S1—N1 | 111.71 (10) | H8A—C8—H8B | 108.3 |
O3—S1—N1 | 110.32 (10) | N3—C9—C8 | 112.44 (16) |
O2—S1—C3 | 110.86 (10) | N3—C9—H9A | 109.1 |
O3—S1—C3 | 110.47 (10) | C8—C9—H9A | 109.1 |
N1—S1—C3 | 97.23 (9) | N3—C9—H9B | 109.1 |
C1—O1—Co1 | 136.88 (13) | C8—C9—H9B | 109.1 |
C1—N1—S1 | 110.72 (14) | H9A—C9—H9B | 107.8 |
C8—N2—Co1 | 112.04 (11) | N3—C10—C11 | 111.99 (17) |
C8—N2—H2A | 105.0 (14) | N3—C10—H10A | 109.2 |
Co1—N2—H2A | 110.7 (16) | C11—C10—H10A | 109.2 |
C8—N2—H2B | 110.3 (16) | N3—C10—H10B | 109.2 |
Co1—N2—H2B | 110.0 (16) | C11—C10—H10B | 109.2 |
H2A—N2—H2B | 109 (2) | H10A—C10—H10B | 107.9 |
C10—N3—C9 | 109.30 (15) | N4—C11—C10 | 113.47 (19) |
C10—N3—C13 | 107.64 (15) | N4—C11—H11A | 108.9 |
C9—N3—C13 | 107.08 (15) | C10—C11—H11A | 108.9 |
C10—N3—Co1 | 115.28 (12) | N4—C11—H11B | 108.9 |
C9—N3—Co1 | 99.17 (11) | C10—C11—H11B | 108.9 |
C13—N3—Co1 | 117.56 (11) | H11A—C11—H11B | 107.7 |
C12—N4—C11 | 109.61 (16) | N4—C12—C13 | 115.08 (18) |
C12—N4—H4A | 108 (2) | N4—C12—H12A | 108.5 |
C11—N4—H4A | 109 (2) | C13—C12—H12A | 108.5 |
O1—C1—N1 | 125.08 (18) | N4—C12—H12B | 108.5 |
O1—C1—C2 | 120.27 (17) | C13—C12—H12B | 108.5 |
N1—C1—C2 | 114.64 (15) | H12A—C12—H12B | 107.5 |
C7—C2—C3 | 120.25 (19) | N3—C13—C12 | 113.48 (17) |
C7—C2—C1 | 128.66 (17) | N3—C13—H13A | 108.9 |
C3—C2—C1 | 111.08 (17) | C12—C13—H13A | 108.9 |
C4—C3—C2 | 122.14 (19) | N3—C13—H13B | 108.9 |
C4—C3—S1 | 131.55 (16) | C12—C13—H13B | 108.9 |
C2—C3—S1 | 106.31 (14) | H13A—C13—H13B | 107.7 |
C3—C4—C5 | 116.93 (19) | ||
N2i—Co1—O1—C1 | 0.70 (18) | C1—C2—C3—C4 | −178.03 (17) |
N2—Co1—O1—C1 | −179.30 (18) | C7—C2—C3—S1 | −179.55 (15) |
N3—Co1—O1—C1 | −98.62 (18) | C1—C2—C3—S1 | 1.80 (18) |
N3i—Co1—O1—C1 | 81.38 (18) | O2—S1—C3—C4 | −64.8 (2) |
O2—S1—N1—C1 | −115.72 (15) | O3—S1—C3—C4 | 63.7 (2) |
O3—S1—N1—C1 | 115.20 (15) | N1—S1—C3—C4 | 178.58 (19) |
C3—S1—N1—C1 | 0.18 (15) | O2—S1—C3—C2 | 115.35 (14) |
O1i—Co1—N2—C8 | −86.23 (13) | O3—S1—C3—C2 | −116.12 (14) |
O1—Co1—N2—C8 | 93.77 (13) | N1—S1—C3—C2 | −1.22 (14) |
N3—Co1—N2—C8 | 6.49 (13) | C2—C3—C4—C5 | 0.3 (3) |
N3i—Co1—N2—C8 | −173.51 (13) | S1—C3—C4—C5 | −179.46 (17) |
O1i—Co1—N3—C10 | −3.65 (13) | C3—C4—C5—C6 | −1.3 (3) |
O1—Co1—N3—C10 | 176.35 (13) | C4—C5—C6—C7 | 1.3 (4) |
N2i—Co1—N3—C10 | 85.29 (13) | C3—C2—C7—C6 | −0.6 (3) |
N2—Co1—N3—C10 | −94.71 (13) | C1—C2—C7—C6 | 177.80 (19) |
O1i—Co1—N3—C9 | 112.87 (11) | C5—C6—C7—C2 | −0.4 (3) |
O1—Co1—N3—C9 | −67.13 (11) | Co1—N2—C8—C9 | −34.5 (2) |
N2i—Co1—N3—C9 | −158.19 (11) | C10—N3—C9—C8 | 72.7 (2) |
N2—Co1—N3—C9 | 21.81 (11) | C13—N3—C9—C8 | −170.98 (16) |
O1i—Co1—N3—C13 | −132.30 (13) | Co1—N3—C9—C8 | −48.30 (17) |
O1—Co1—N3—C13 | 47.70 (13) | N2—C8—C9—N3 | 59.5 (2) |
N2i—Co1—N3—C13 | −43.36 (14) | C9—N3—C10—C11 | 172.09 (16) |
N2—Co1—N3—C13 | 136.64 (14) | C13—N3—C10—C11 | 56.1 (2) |
Co1—O1—C1—N1 | 24.4 (3) | Co1—N3—C10—C11 | −77.30 (18) |
Co1—O1—C1—C2 | −154.52 (14) | C12—N4—C11—C10 | 52.0 (2) |
S1—N1—C1—O1 | −178.10 (15) | N3—C10—C11—N4 | −58.3 (2) |
S1—N1—C1—C2 | 0.9 (2) | C11—N4—C12—C13 | −49.1 (2) |
O1—C1—C2—C7 | −1.3 (3) | C10—N3—C13—C12 | −53.1 (2) |
N1—C1—C2—C7 | 179.63 (19) | C9—N3—C13—C12 | −170.55 (17) |
O1—C1—C2—C3 | 177.19 (16) | Co1—N3—C13—C12 | 79.06 (19) |
N1—C1—C2—C3 | −1.9 (2) | N4—C12—C13—N3 | 52.0 (2) |
C7—C2—C3—C4 | 0.6 (3) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2B···N4ii | 0.85 (3) | 2.38 (3) | 3.172 (3) | 154 (2) |
N2—H2A···N1i | 0.91 (3) | 2.25 (3) | 2.982 (2) | 137 (2) |
N4—H4A···O3iii | 0.84 (2) | 2.22 (2) | 3.054 (3) | 173 (3) |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x−1, y, z; (iii) x+1, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | [Co(C7H4NO3S)2(C6H15N3)2] |
Mr | 681.69 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 8.4294 (7), 9.3742 (10), 11.5618 (10) |
α, β, γ (°) | 93.651 (8), 110.473 (6), 116.486 (13) |
V (Å3) | 739.31 (17) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 0.78 |
Crystal size (mm) | 0.58 × 0.41 × 0.25 |
Data collection | |
Diffractometer | Stoe IPDS 2 |
Absorption correction | Integration (X-RED; Stoe & Cie, 2002) |
Tmin, Tmax | 0.721, 0.865 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 9652, 2913, 2635 |
Rint | 0.103 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.033, 0.094, 1.07 |
No. of reflections | 2913 |
No. of parameters | 208 |
No. of restraints | 1 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 0.47, −0.64 |
Computer programs: X-AREA (Stoe & Cie, 2002), X-RED (Stoe & Cie, 2002), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), ORTEP-3 (Farrugia, 1997), WinGX (Farrugia, 1999).
Co1—O1 | 2.0897 (13) | Co1—N3 | 2.3589 (16) |
Co1—N2 | 2.1101 (16) | ||
O1—Co1—N2i | 91.53 (6) | N2—Co1—N3 | 80.62 (6) |
O1—Co1—N2 | 88.47 (6) | O1—Co1—N3i | 92.94 (6) |
O1—Co1—N3 | 87.06 (6) | N2—Co1—N3i | 99.38 (6) |
Symmetry code: (i) −x+1, −y+1, −z+1. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2B···N4ii | 0.85 (3) | 2.38 (3) | 3.172 (3) | 154 (2) |
N2—H2A···N1i | 0.91 (3) | 2.25 (3) | 2.982 (2) | 137 (2) |
N4—H4A···O3iii | 0.838 (17) | 2.221 (18) | 3.054 (3) | 173 (3) |
Symmetry codes: (i) −x+1, −y+1, −z+1; (ii) x−1, y, z; (iii) x+1, y+1, z. |
References
Baran, E. J. & Yilmaz, V. T. (2006). Coord. Chem. Rev. 250, 1980–1999. Web of Science CrossRef CAS Google Scholar
Farrugia, L. J. (1997). J. Appl. Cryst. 30, 565. CrossRef IUCr Journals Google Scholar
Farrugia, L. J. (1999). J. Appl. Cryst. 32, 837–838. CrossRef CAS IUCr Journals Google Scholar
Guney, S., Yilmaz, V. T. & Harrison, W. T. A. (2005). J. Coord. Chem. 58, 1667–1674. Web of Science CSD CrossRef CAS Google Scholar
Sheldrick, G. M. (1997). SHELXS97 and SHELXL97. University of Göttingen, Germany. Google Scholar
Stoe & Cie (2002). X-AREA (Version 1.18) and X-RED (Version 1.04). Stoe & Cie, Darmstadt, Germany. Google Scholar
Yilmaz, V. T., Guney, S. & Harrison, W. T. A. (2005). Z. Naturforsch. Teil B, 60, 403–407. Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
The saccharinate (sac) anion is formed by the deprotonation of saccharin and coordinates to various metal ions rather easily (Baran & Yilmaz 2006). In the course of the synthesis and structural characterization of mixed ligand–metal complexes of sac, recently we reported nickel(II), zinc(II) and cadmium(II) complexes of sac with 2-piperazin-1-ylethanamine (ppzea) (Guney et al., 2005; Yilmaz et al., 2005). In this paper, the crystal and molecular structure of the isomorphous sac complex of cobalt(II) with ppzea (I) is reported.
The title complex (I) is isostructural with the nickel(II), zinc(II) and cadmium(II) complexes of the same ligands (Guney et al., 2005; Yilmaz et al., 2005) and shows similar structural characteristics. In these isostructural complexes, the MII ions show an elongated octahedral geometry, possibly due to a poor overlap of the sp3 lone pair on the N atom of ppz with the valence orbitals of the metal ions. As shown in Fig. 1, (I) is a mononuclear CoII complex, in which the CoII ion lies on a centre of inversion and also exhibits an elongated distorted octahedral geometry with two neutral bidendate (N,N') ppzea ligands and two anionic sac ligands. In spite of the common N-coordination mode, sac coordinates to CoII through the carbonyl O atom. The puckering parameters of the ppz ring system in (I) are q = 0.538 (2)Å and Θ = 5.4 (2)°, suggesting that the ppz rings exhibit a typical (e.g., cyclohexane-like) chair conformation.
The amine hydrogen atoms of ppzea form intramolecular hydrogen bonds with the negatively charged N atom of sac. The individual molecules are linked by N—H···N and N—H···O hydrogen bonds, involving the amine H atoms of ppzea and the ring N atom of ppzea and the sulfonyl O atoms of sac, forming a linear chain running paralel to the crystallographic a axis.