metal-organic compounds
Chlorido[2-methoxy-6-(2-pyridylmethyliminomethyl)phenolato]zinc(II)
aDepartment of Chemistry & Chemical Engineering, Jining University, Qufu 273155, People's Republic of China
*Correspondence e-mail: jn_sning@126.com
In the title molecule, [Zn(C14H13N2O2)Cl], the Zn(II) ion is coordinated by one O and two N atoms from the Schiff base ligand, and a chloride anion in a distorted square-planar geometry. In the π–π interactions link the approximately planar (mean deviation 0.0569 Å) molecules into stacks parallel to the a axis.
Related literature
For properties of transition metal complexes with Schiff base ligands, see: Ghosh et al. (2006); Singh et al. (2007); Ward (2007). For details of the synthesis of the ligand, see Kannappan et al. (2005). For related structures, see: Li & Zhang (2004); Chen (2005); You (2005).
Experimental
Crystal data
|
Refinement
|
Data collection: APEX2 (Bruker, 2004); cell SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP (Sheldrick, 1998); software used to prepare material for publication: XP.
Supporting information
https://doi.org/10.1107/S1600536809037015/cv2598sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536809037015/cv2598Isup2.hkl
The Schiff base was synthesized according to the literature method (Kannappan et al., 2005). The synthesis of the title complex was carried out by reacting ZnCl2 and the schiff-base ligand (1:1, molar ratio) in methanol under the refelux condition. The cooled solution was filtrated and left for slow evaperation in air to obtain single-crystal suitable for X-ray diffraction.
All H atoms were geometrically positioned (C—H = 0.93 - 0.96 Å) and refined as riding, with Uiso(H) = 1.2Ueq(C).
Transition metal-Schiff based complexes have been intensively focused on owing to their excellent physical and chemical properties including magnetic, optics and catalysis (Ghosh et al., 2006; Singh et al., 2007; Ward et al., 2007). Additionally, their intriguing biological activites also attract a lot of attentions. Herein, we report the structure of a new zinc complex with asymmetric tridentate Schiff base ligand.
In the title compound, (I) (Fig. 1), the Zn(II) ion is four coordinated with a slightly distorted square planar coordination sphere formed by two N atoms and one O atom from the asymmetric tridentate Schiff base ligand, and the fourth position is occupied by one Cl anion. The mean deviation of the plane formed by ZnN2OCl unit is 0.0569 Å. The Zn—O, Zn—N and Zn—Cl bond lengths are all comparable to those found in other Zn Schiff base complexes (You, 2005; Chen, 2005; Li, et al., 2004). It is worthing noting that the π···π interactions (Table 1).
can be linked into one-dimensional supermolecular structure via theFor properties of transition metal complexes with Shiff base ligands, see: Ghosh et al. (2006); Singh et al. (2007); Ward (2007). For details of the synthesis of the ligand, see Kannappan et al. (2005). For related structures, see: Li & Zhang (2004); Chen (2005); You (2005). Cg1 and Cg2 are centroids of atoms C1–C6
and N1/C9–C13, respectively.
Data collection: APEX2 (Bruker, 2004); cell
SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP (Sheldrick, 1998); software used to prepare material for publication: XP (Sheldrick, 1998).Fig. 1. View of (I) with the atom-labelling scheme. Displacement ellipsoids are drawn at the 30% probability level. All H-atoms were omitted for clarity. |
[Zn(C14H13N2O2)Cl] | F(000) = 696 |
Mr = 342.08 | Dx = 1.755 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
a = 7.1013 (5) Å | Cell parameters from 3850 reflections |
b = 18.2673 (14) Å | θ = 3.0–26.0° |
c = 10.3241 (8) Å | µ = 2.10 mm−1 |
β = 104.789 (1)° | T = 293 K |
V = 1294.89 (17) Å3 | Block, colourless |
Z = 4 | 0.31 × 0.25 × 0.23 mm |
Bruker APEXII CCD area-detector diffractometer | 2538 independent reflections |
Radiation source: fine-focus sealed tube | 2263 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.017 |
φ and ω scans | θmax = 26.0°, θmin = 2.2° |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | h = −8→8 |
Tmin = 0.562, Tmax = 0.643 | k = −18→22 |
6845 measured reflections | l = −12→10 |
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)] = 0.027 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.082 | H-atom parameters constrained |
S = 1.06 | w = 1/[σ2(Fo2) + (0.0487P)2 + 0.6563P] where P = (Fo2 + 2Fc2)/3 |
2538 reflections | (Δ/σ)max = 0.006 |
182 parameters | Δρmax = 0.36 e Å−3 |
0 restraints | Δρmin = −0.31 e Å−3 |
[Zn(C14H13N2O2)Cl] | V = 1294.89 (17) Å3 |
Mr = 342.08 | Z = 4 |
Monoclinic, P21/c | Mo Kα radiation |
a = 7.1013 (5) Å | µ = 2.10 mm−1 |
b = 18.2673 (14) Å | T = 293 K |
c = 10.3241 (8) Å | 0.31 × 0.25 × 0.23 mm |
β = 104.789 (1)° |
Bruker APEXII CCD area-detector diffractometer | 2538 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 2003) | 2263 reflections with I > 2σ(I) |
Tmin = 0.562, Tmax = 0.643 | Rint = 0.017 |
6845 measured reflections |
R[F2 > 2σ(F2)] = 0.027 | 0 restraints |
wR(F2) = 0.082 | H-atom parameters constrained |
S = 1.06 | Δρmax = 0.36 e Å−3 |
2538 reflections | Δρmin = −0.31 e Å−3 |
182 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 | 0.33329 (4) | 0.484815 (14) | 0.11005 (3) | 0.02880 (12) | |
Cl1 | 0.45273 (10) | 0.40303 (3) | 0.27143 (6) | 0.04062 (17) | |
O1 | 0.2046 (2) | 0.40698 (8) | −0.00080 (16) | 0.0324 (4) | |
O2 | 0.0568 (3) | 0.28355 (9) | −0.10946 (17) | 0.0389 (4) | |
N1 | 0.4516 (3) | 0.57415 (10) | 0.21313 (18) | 0.0272 (4) | |
N2 | 0.2579 (3) | 0.55672 (10) | −0.03049 (19) | 0.0276 (4) | |
C1 | 0.0718 (3) | 0.47592 (12) | −0.2000 (2) | 0.0282 (5) | |
C2 | 0.1050 (3) | 0.41075 (12) | −0.1239 (2) | 0.0265 (5) | |
C3 | 0.0236 (3) | 0.34459 (12) | −0.1884 (2) | 0.0295 (5) | |
C4 | −0.0793 (3) | 0.34472 (14) | −0.3194 (2) | 0.0334 (5) | |
H4 | −0.1296 | 0.3011 | −0.3605 | 0.040* | |
C5 | −0.1094 (3) | 0.40998 (15) | −0.3922 (2) | 0.0356 (5) | |
H5 | −0.1803 | 0.4094 | −0.4814 | 0.043* | |
C6 | −0.0367 (3) | 0.47439 (13) | −0.3345 (2) | 0.0325 (5) | |
H6 | −0.0588 | 0.5175 | −0.3840 | 0.039* | |
C7 | 0.1495 (3) | 0.54479 (13) | −0.1478 (2) | 0.0303 (5) | |
H7 | 0.1183 | 0.5850 | −0.2046 | 0.036* | |
C8 | −0.0093 (4) | 0.21497 (13) | −0.1699 (3) | 0.0433 (6) | |
H8A | −0.1460 | 0.2180 | −0.2128 | 0.065* | |
H8B | 0.0128 | 0.1776 | −0.1024 | 0.065* | |
H8C | 0.0608 | 0.2032 | −0.2353 | 0.065* | |
C9 | 0.4324 (3) | 0.63695 (12) | 0.1444 (2) | 0.0281 (5) | |
C10 | 0.5065 (3) | 0.70331 (13) | 0.2015 (3) | 0.0340 (5) | |
H10 | 0.4936 | 0.7456 | 0.1499 | 0.041* | |
C11 | 0.5983 (4) | 0.70499 (14) | 0.3345 (3) | 0.0388 (6) | |
H11 | 0.6496 | 0.7484 | 0.3760 | 0.047* | |
C12 | 0.6133 (4) | 0.64061 (15) | 0.4060 (3) | 0.0393 (6) | |
H12 | 0.6722 | 0.6406 | 0.4974 | 0.047* | |
C13 | 0.5419 (3) | 0.57673 (14) | 0.3432 (2) | 0.0338 (5) | |
H13 | 0.5569 | 0.5337 | 0.3929 | 0.041* | |
C14 | 0.3226 (4) | 0.63242 (12) | 0.0026 (2) | 0.0325 (5) | |
H14A | 0.2104 | 0.6646 | −0.0133 | 0.039* | |
H14B | 0.4045 | 0.6481 | −0.0543 | 0.039* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Zn1 | 0.03695 (18) | 0.02365 (17) | 0.02486 (17) | 0.00029 (10) | 0.00615 (12) | 0.00196 (10) |
Cl1 | 0.0635 (4) | 0.0280 (3) | 0.0268 (3) | 0.0019 (3) | 0.0049 (3) | 0.0074 (2) |
O1 | 0.0444 (9) | 0.0229 (8) | 0.0246 (8) | −0.0019 (7) | −0.0010 (7) | 0.0024 (6) |
O2 | 0.0494 (10) | 0.0228 (8) | 0.0374 (9) | −0.0037 (7) | −0.0017 (8) | −0.0012 (7) |
N1 | 0.0300 (9) | 0.0251 (9) | 0.0270 (9) | 0.0010 (7) | 0.0082 (8) | 0.0000 (8) |
N2 | 0.0343 (10) | 0.0211 (9) | 0.0271 (9) | 0.0011 (8) | 0.0073 (8) | 0.0032 (7) |
C1 | 0.0271 (11) | 0.0309 (12) | 0.0257 (11) | 0.0035 (9) | 0.0051 (9) | 0.0031 (9) |
C2 | 0.0238 (10) | 0.0285 (11) | 0.0263 (11) | 0.0013 (9) | 0.0051 (8) | −0.0008 (9) |
C3 | 0.0291 (11) | 0.0269 (11) | 0.0322 (12) | 0.0013 (9) | 0.0076 (9) | −0.0007 (9) |
C4 | 0.0316 (12) | 0.0368 (13) | 0.0306 (12) | −0.0017 (10) | 0.0057 (10) | −0.0078 (10) |
C5 | 0.0311 (12) | 0.0480 (15) | 0.0250 (12) | 0.0023 (11) | 0.0022 (9) | −0.0006 (10) |
C6 | 0.0336 (12) | 0.0365 (13) | 0.0256 (11) | 0.0040 (10) | 0.0043 (10) | 0.0052 (10) |
C7 | 0.0356 (12) | 0.0272 (12) | 0.0273 (11) | 0.0044 (9) | 0.0069 (9) | 0.0067 (10) |
C8 | 0.0450 (15) | 0.0260 (12) | 0.0523 (16) | −0.0036 (10) | 0.0002 (12) | −0.0053 (11) |
C9 | 0.0294 (11) | 0.0247 (11) | 0.0322 (12) | 0.0003 (9) | 0.0119 (9) | −0.0015 (9) |
C10 | 0.0365 (12) | 0.0254 (11) | 0.0415 (13) | −0.0019 (10) | 0.0128 (10) | −0.0028 (10) |
C11 | 0.0344 (12) | 0.0363 (13) | 0.0463 (14) | −0.0088 (11) | 0.0116 (11) | −0.0129 (12) |
C12 | 0.0348 (12) | 0.0480 (15) | 0.0338 (13) | −0.0062 (11) | 0.0062 (10) | −0.0084 (11) |
C13 | 0.0354 (12) | 0.0358 (12) | 0.0286 (12) | −0.0022 (10) | 0.0052 (10) | 0.0017 (10) |
C14 | 0.0490 (14) | 0.0183 (10) | 0.0304 (12) | 0.0009 (9) | 0.0106 (10) | 0.0022 (9) |
Zn1—O1 | 1.9059 (16) | C5—C6 | 1.360 (4) |
Zn1—N2 | 1.9288 (18) | C5—H5 | 0.9300 |
Zn1—N1 | 2.0112 (19) | C6—H6 | 0.9300 |
Zn1—Cl1 | 2.2373 (6) | C7—H7 | 0.9300 |
O1—C2 | 1.289 (3) | C8—H8A | 0.9600 |
O2—C3 | 1.366 (3) | C8—H8B | 0.9600 |
O2—C8 | 1.425 (3) | C8—H8C | 0.9600 |
N1—C13 | 1.333 (3) | C9—C10 | 1.391 (3) |
N1—C9 | 1.337 (3) | C9—C14 | 1.475 (3) |
N2—C7 | 1.277 (3) | C10—C11 | 1.362 (4) |
N2—C14 | 1.470 (3) | C10—H10 | 0.9300 |
C1—C6 | 1.406 (3) | C11—C12 | 1.378 (4) |
C1—C2 | 1.412 (3) | C11—H11 | 0.9300 |
C1—C7 | 1.423 (3) | C12—C13 | 1.368 (4) |
C2—C3 | 1.429 (3) | C12—H12 | 0.9300 |
C3—C4 | 1.363 (3) | C13—H13 | 0.9300 |
C4—C5 | 1.396 (4) | C14—H14A | 0.9700 |
C4—H4 | 0.9300 | C14—H14B | 0.9700 |
Cg1···Cg2i | 3.566 (4) | Cg1···Cg2ii | 3.767 (7) |
O1—Zn1—N2 | 93.32 (7) | C1—C6—H6 | 120.0 |
O1—Zn1—N1 | 174.02 (7) | N2—C7—C1 | 126.3 (2) |
N2—Zn1—N1 | 81.01 (8) | N2—C7—H7 | 116.9 |
O1—Zn1—Cl1 | 88.94 (5) | C1—C7—H7 | 116.9 |
N2—Zn1—Cl1 | 173.99 (6) | O2—C8—H8A | 109.5 |
N1—Zn1—Cl1 | 96.89 (6) | O2—C8—H8B | 109.5 |
C2—O1—Zn1 | 127.63 (14) | H8A—C8—H8B | 109.5 |
C3—O2—C8 | 117.96 (19) | O2—C8—H8C | 109.5 |
C13—N1—C9 | 117.5 (2) | H8A—C8—H8C | 109.5 |
C13—N1—Zn1 | 126.18 (16) | H8B—C8—H8C | 109.5 |
C9—N1—Zn1 | 116.30 (15) | N1—C9—C10 | 123.1 (2) |
C7—N2—C14 | 117.25 (19) | N1—C9—C14 | 115.78 (19) |
C7—N2—Zn1 | 125.56 (16) | C10—C9—C14 | 121.1 (2) |
C14—N2—Zn1 | 117.11 (14) | C11—C10—C9 | 118.6 (2) |
C6—C1—C2 | 120.3 (2) | C11—C10—H10 | 120.7 |
C6—C1—C7 | 117.0 (2) | C9—C10—H10 | 120.7 |
C2—C1—C7 | 122.7 (2) | C10—C11—C12 | 118.2 (2) |
O1—C2—C1 | 124.4 (2) | C10—C11—H11 | 120.9 |
O1—C2—C3 | 118.0 (2) | C12—C11—H11 | 120.9 |
C1—C2—C3 | 117.6 (2) | C13—C12—C11 | 120.4 (2) |
C4—C3—O2 | 124.1 (2) | C13—C12—H12 | 119.8 |
C4—C3—C2 | 120.8 (2) | C11—C12—H12 | 119.8 |
O2—C3—C2 | 115.12 (19) | N1—C13—C12 | 122.2 (2) |
C3—C4—C5 | 120.4 (2) | N1—C13—H13 | 118.9 |
C3—C4—H4 | 119.8 | C12—C13—H13 | 118.9 |
C5—C4—H4 | 119.8 | N2—C14—C9 | 109.77 (18) |
C6—C5—C4 | 120.9 (2) | N2—C14—H14A | 109.7 |
C6—C5—H5 | 119.5 | C9—C14—H14A | 109.7 |
C4—C5—H5 | 119.5 | N2—C14—H14B | 109.7 |
C5—C6—C1 | 120.1 (2) | C9—C14—H14B | 109.7 |
C5—C6—H6 | 120.0 | H14A—C14—H14B | 108.2 |
Symmetry codes: (i) −x+1, y+3/2, −z+1/2; (ii) −x, y+3/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [Zn(C14H13N2O2)Cl] |
Mr | 342.08 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 7.1013 (5), 18.2673 (14), 10.3241 (8) |
β (°) | 104.789 (1) |
V (Å3) | 1294.89 (17) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 2.10 |
Crystal size (mm) | 0.31 × 0.25 × 0.23 |
Data collection | |
Diffractometer | Bruker APEXII CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 2003) |
Tmin, Tmax | 0.562, 0.643 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6845, 2538, 2263 |
Rint | 0.017 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.027, 0.082, 1.06 |
No. of reflections | 2538 |
No. of parameters | 182 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.36, −0.31 |
Computer programs: APEX2 (Bruker, 2004), SAINT-Plus (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP (Sheldrick, 1998).
Zn1—O1 | 1.9059 (16) | Zn1—N1 | 2.0112 (19) |
Zn1—N2 | 1.9288 (18) | Zn1—Cl1 | 2.2373 (6) |
Cg1···Cg2i | 3.566 (4) | Cg1···Cg2ii | 3.767 (7) |
Symmetry codes: (i) −x+1, y+3/2, −z+1/2; (ii) −x, y+3/2, −z+1/2. |
Acknowledgements
This work was supported by Jining University, China.
References
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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.
Transition metal-Schiff based complexes have been intensively focused on owing to their excellent physical and chemical properties including magnetic, optics and catalysis (Ghosh et al., 2006; Singh et al., 2007; Ward et al., 2007). Additionally, their intriguing biological activites also attract a lot of attentions. Herein, we report the structure of a new zinc complex with asymmetric tridentate Schiff base ligand.
In the title compound, (I) (Fig. 1), the Zn(II) ion is four coordinated with a slightly distorted square planar coordination sphere formed by two N atoms and one O atom from the asymmetric tridentate Schiff base ligand, and the fourth position is occupied by one Cl anion. The mean deviation of the plane formed by ZnN2OCl unit is 0.0569 Å. The Zn—O, Zn—N and Zn—Cl bond lengths are all comparable to those found in other Zn Schiff base complexes (You, 2005; Chen, 2005; Li, et al., 2004). It is worthing noting that the asymmetric unit can be linked into one-dimensional supermolecular structure via the π···π interactions (Table 1).