Abstract
The title compound, [Zn(NCS)2(C12H17N3O)], was prepared by the reaction of zinc acetate with pyridine-2-carbaldehyde, 2-morpholinoethylamine and ammonium thiocyanate in an ethanol solution. The ZnII atom is five coordinate with a distorted trigonal–bipyramidal geometry, coordinating with three N atoms of the Schiff base (2-morpholinoethyl)(2-pyridylmethylidene)amine and two N atoms from two thiocyanate ligands. The morpholine ring adopts a chair configuration.
Related literature
For background literature on Schiff base complexes, see: Costes et al. (2002 ▶); Erxleben (2001 ▶); Lacroix et al. (1996 ▶); Odoko et al. (2006 ▶); Ali et al. (2006 ▶). For literature on related zinc(II) complexes, see: Li et al. (2008 ▶); Eltayeb et al. (2007 ▶); Ali et al. (2008 ▶); Zhang & Wang (2007 ▶).
Experimental
Crystal data
[Zn(NCS)2(C12H17N3O)]
M r = 400.82
Triclinic,
a = 8.185 (2) Å
b = 8.654 (2) Å
c = 13.368 (4) Å
α = 98.439 (3)°
β = 102.587 (3)°
γ = 102.501 (3)°
V = 883.3 (4) Å3
Z = 2
Mo Kα radiation
μ = 1.64 mm−1
T = 298 (2) K
0.23 × 0.23 × 0.20 mm
Data collection
Bruker SMART 1000 CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996 ▶) T min = 0.705, T max = 0.736
7386 measured reflections
3770 independent reflections
2989 reflections with I > 2σ(I)
R int = 0.031
Refinement
R[F 2 > 2σ(F 2)] = 0.045
wR(F 2) = 0.124
S = 1.04
3770 reflections
208 parameters
H-atom parameters constrained
Δρmax = 0.57 e Å−3
Δρmin = −0.47 e Å−3
Data collection: SMART (Bruker, 2002 ▶); cell refinement: SAINT (Bruker, 2002 ▶); data reduction: SAINT; 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: SHELXTL.
Supplementary Material
Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536808044061/su2087sup1.cif
Structure factors: contains datablocks I. DOI: 10.1107/S1600536808044061/su2087Isup2.hkl
Additional supplementary materials: crystallographic information; 3D view; checkCIF report
Acknowledgments
The author is grateful to Jiaying University for financial support.
supplementary crystallographic information
Comment
Schiff bases are extremely interesting ligands and many have been used to form a large number of metal complexes (Costes et al., 2002; Erxleben, 2001; Lacroix et al., 1996; Odoko et al., 2006; Ali et al., 2006). As a continuation of our work in this area, we report herein the crystal structure of a new zinc(II) complex of the Schiff base (2-morpholin-4-ylethyl)-(1-pyridin-2-ylmethylidene)amine and ammonium thiocyanate, (I).
The molecular structure of complex (I) is illustrated in Fig. 1. The ZnII atom is five-coordinate in a trigonal-bipyramidal geometry, coordinating with three N-atoms of the Schiff base ligand and two N-atoms from two thiocyanate ligands. All the coordinate bond lengths are typical and comparable with those in the similar zinc(II) complexes (Li et al., 2008; Eltayeb et al., 2007; Ali et al., 2008; Zhang & Wang, 2007). As expected, the morpholine ring adopts a chair configuration.
Experimental
Pyridine-2-carbaldehyde (0.1 mmol, 10.7 mg), 2-morpholin-4-ylethylamine (0.1 mmol, 13.0 mg), ammonium thiocyanate (0.2 mmol, 15.2 mg), and zinc acetate dihydrate (0.1 mmol, 22.0 mg) were mixed in an ethanol solution (20 ml). The mixture was stirred for 2 h at room temperature, giving a colorless solution. Single-crystals were formed by gradual evaporation of the solution in air after several days.
Refinement
H atoms were placed in calculated positions and treated as riding atoms: C–H = 0.93 - 0.97 Å, with Uiso(H) = 1.2Ueq(C).
Figures
Fig. 1.
The molecular structure of the compound (I), showing 30% probability displacement ellipsoids.
Crystal data
| [Zn(NCS)2(C12H17N3O)] | Z = 2 |
| Mr = 400.82 | F(000) = 412 |
| Triclinic, P1 | Dx = 1.507 Mg m−3 |
| Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
| a = 8.185 (2) Å | Cell parameters from 2675 reflections |
| b = 8.654 (2) Å | θ = 2.4–25.0° |
| c = 13.368 (4) Å | µ = 1.64 mm−1 |
| α = 98.439 (3)° | T = 298 K |
| β = 102.587 (3)° | Block, colorless |
| γ = 102.501 (3)° | 0.23 × 0.23 × 0.20 mm |
| V = 883.3 (4) Å3 |
Data collection
| Bruker SMART 1000 CCD area-detector diffractometer | 3770 independent reflections |
| Radiation source: fine-focus sealed tube | 2989 reflections with I > 2σ(I) |
| graphite | Rint = 0.031 |
| ω scans | θmax = 27.0°, θmin = 1.6° |
| Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −10→10 |
| Tmin = 0.705, Tmax = 0.736 | k = −11→10 |
| 7386 measured reflections | l = −17→16 |
Refinement
| 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)] = 0.045 | Hydrogen site location: inferred from neighbouring sites |
| wR(F2) = 0.124 | H-atom parameters constrained |
| S = 1.04 | w = 1/[σ2(Fo2) + (0.064P)2 + 0.1459P] where P = (Fo2 + 2Fc2)/3 |
| 3770 reflections | (Δ/σ)max = 0.001 |
| 208 parameters | Δρmax = 0.57 e Å−3 |
| 0 restraints | Δρmin = −0.47 e Å−3 |
Special details
| 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 > 2sigma(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. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
| x | y | z | Uiso*/Ueq | ||
| Zn1 | 0.87080 (4) | 0.35121 (4) | 0.23426 (3) | 0.04844 (15) | |
| S1 | 0.75132 (16) | 0.05952 (14) | −0.10471 (7) | 0.0759 (3) | |
| S2 | 1.40376 (14) | 0.73452 (15) | 0.38080 (9) | 0.0854 (4) | |
| O1 | 1.1836 (4) | 0.1269 (4) | 0.4455 (2) | 0.0791 (8) | |
| N1 | 0.7747 (4) | 0.5343 (3) | 0.1472 (2) | 0.0551 (7) | |
| N2 | 0.6437 (3) | 0.3649 (3) | 0.2720 (2) | 0.0552 (7) | |
| N3 | 0.8546 (3) | 0.1714 (3) | 0.3427 (2) | 0.0493 (6) | |
| N4 | 0.8437 (4) | 0.1978 (4) | 0.1048 (2) | 0.0662 (8) | |
| N5 | 1.0969 (4) | 0.5041 (4) | 0.2956 (3) | 0.0793 (10) | |
| C1 | 0.6221 (4) | 0.5515 (4) | 0.1613 (3) | 0.0531 (8) | |
| C2 | 0.5377 (5) | 0.6554 (4) | 0.1166 (3) | 0.0622 (9) | |
| H2 | 0.4323 | 0.6652 | 0.1285 | 0.075* | |
| C3 | 0.6133 (5) | 0.7444 (4) | 0.0539 (3) | 0.0662 (10) | |
| H3 | 0.5592 | 0.8155 | 0.0223 | 0.079* | |
| C4 | 0.7674 (5) | 0.7276 (4) | 0.0385 (3) | 0.0690 (10) | |
| H4 | 0.8204 | 0.7867 | −0.0038 | 0.083* | |
| C5 | 0.8445 (5) | 0.6212 (4) | 0.0866 (3) | 0.0648 (9) | |
| H5 | 0.9503 | 0.6103 | 0.0759 | 0.078* | |
| C6 | 0.5531 (4) | 0.4478 (4) | 0.2283 (3) | 0.0603 (9) | |
| H6 | 0.4434 | 0.4439 | 0.2382 | 0.072* | |
| C7 | 0.5856 (5) | 0.2577 (6) | 0.3393 (3) | 0.0776 (12) | |
| H7A | 0.4603 | 0.2194 | 0.3188 | 0.093* | |
| H7B | 0.6214 | 0.3151 | 0.4117 | 0.093* | |
| C8 | 0.6656 (5) | 0.1177 (5) | 0.3275 (3) | 0.0730 (11) | |
| H8A | 0.6415 | 0.0524 | 0.3782 | 0.088* | |
| H8B | 0.6134 | 0.0506 | 0.2581 | 0.088* | |
| C9 | 0.9411 (5) | 0.2391 (4) | 0.4547 (3) | 0.0612 (9) | |
| H9A | 0.8978 | 0.1647 | 0.4962 | 0.073* | |
| H9B | 0.9127 | 0.3402 | 0.4752 | 0.073* | |
| C10 | 1.1332 (5) | 0.2682 (5) | 0.4768 (3) | 0.0723 (11) | |
| H10A | 1.1776 | 0.3503 | 0.4404 | 0.087* | |
| H10B | 1.1840 | 0.3088 | 0.5513 | 0.087* | |
| C11 | 1.1103 (5) | 0.0677 (5) | 0.3379 (3) | 0.0757 (11) | |
| H11A | 1.1471 | −0.0283 | 0.3162 | 0.091* | |
| H11B | 1.1522 | 0.1484 | 0.2998 | 0.091* | |
| C12 | 0.9161 (5) | 0.0269 (4) | 0.3108 (3) | 0.0639 (9) | |
| H12A | 0.8704 | −0.0134 | 0.2360 | 0.077* | |
| H12B | 0.8735 | −0.0576 | 0.3460 | 0.077* | |
| C13 | 0.8047 (4) | 0.1408 (4) | 0.0181 (3) | 0.0504 (7) | |
| C14 | 1.2216 (5) | 0.6003 (4) | 0.3288 (3) | 0.0560 (8) |
Atomic displacement parameters (Å2)
| U11 | U22 | U33 | U12 | U13 | U23 | |
| Zn1 | 0.0390 (2) | 0.0533 (2) | 0.0485 (2) | 0.00680 (15) | 0.01199 (15) | 0.00305 (16) |
| S1 | 0.0891 (7) | 0.0910 (7) | 0.0462 (5) | 0.0300 (6) | 0.0125 (5) | 0.0066 (5) |
| S2 | 0.0656 (6) | 0.0863 (7) | 0.0827 (7) | −0.0173 (5) | 0.0278 (6) | −0.0084 (6) |
| O1 | 0.0664 (17) | 0.090 (2) | 0.0778 (19) | 0.0235 (15) | 0.0049 (14) | 0.0222 (16) |
| N1 | 0.0487 (15) | 0.0542 (16) | 0.0604 (17) | 0.0143 (12) | 0.0129 (13) | 0.0061 (13) |
| N2 | 0.0465 (15) | 0.0640 (16) | 0.0577 (17) | 0.0151 (13) | 0.0190 (13) | 0.0100 (14) |
| N3 | 0.0469 (14) | 0.0472 (14) | 0.0473 (14) | 0.0036 (11) | 0.0098 (11) | 0.0060 (11) |
| N4 | 0.083 (2) | 0.0677 (19) | 0.0506 (17) | 0.0277 (16) | 0.0191 (15) | 0.0057 (15) |
| N5 | 0.0497 (17) | 0.077 (2) | 0.090 (3) | −0.0094 (16) | −0.0065 (17) | 0.0269 (19) |
| C1 | 0.0496 (18) | 0.0513 (18) | 0.0517 (19) | 0.0153 (14) | 0.0064 (14) | −0.0036 (14) |
| C2 | 0.056 (2) | 0.059 (2) | 0.067 (2) | 0.0235 (16) | 0.0071 (17) | −0.0023 (17) |
| C3 | 0.072 (2) | 0.0517 (19) | 0.068 (2) | 0.0210 (17) | 0.0016 (19) | 0.0079 (17) |
| C4 | 0.070 (2) | 0.058 (2) | 0.077 (3) | 0.0139 (18) | 0.017 (2) | 0.0159 (19) |
| C5 | 0.055 (2) | 0.063 (2) | 0.080 (3) | 0.0176 (17) | 0.0196 (18) | 0.0153 (19) |
| C6 | 0.0466 (18) | 0.070 (2) | 0.063 (2) | 0.0184 (16) | 0.0179 (16) | 0.0011 (18) |
| C7 | 0.053 (2) | 0.107 (3) | 0.086 (3) | 0.018 (2) | 0.034 (2) | 0.038 (2) |
| C8 | 0.051 (2) | 0.078 (3) | 0.084 (3) | −0.0047 (18) | 0.0138 (19) | 0.031 (2) |
| C9 | 0.074 (2) | 0.0553 (19) | 0.0471 (19) | 0.0103 (17) | 0.0135 (17) | 0.0017 (15) |
| C10 | 0.071 (2) | 0.070 (2) | 0.057 (2) | 0.0043 (19) | −0.0076 (18) | 0.0106 (18) |
| C11 | 0.075 (3) | 0.085 (3) | 0.081 (3) | 0.035 (2) | 0.031 (2) | 0.022 (2) |
| C12 | 0.082 (3) | 0.0477 (18) | 0.055 (2) | 0.0115 (17) | 0.0100 (18) | 0.0070 (16) |
| C13 | 0.0516 (18) | 0.0499 (17) | 0.057 (2) | 0.0198 (14) | 0.0182 (15) | 0.0183 (16) |
| C14 | 0.061 (2) | 0.064 (2) | 0.0527 (19) | 0.0207 (17) | 0.0245 (17) | 0.0200 (16) |
Geometric parameters (Å, °)
| Zn1—N5 | 1.951 (3) | C3—C4 | 1.356 (6) |
| Zn1—N4 | 1.959 (3) | C3—H3 | 0.9300 |
| Zn1—N2 | 2.051 (3) | C4—C5 | 1.381 (5) |
| Zn1—N1 | 2.273 (3) | C4—H4 | 0.9300 |
| Zn1—N3 | 2.279 (3) | C5—H5 | 0.9300 |
| S1—C13 | 1.611 (4) | C6—H6 | 0.9300 |
| S2—C14 | 1.618 (4) | C7—C8 | 1.501 (6) |
| O1—C11 | 1.401 (5) | C7—H7A | 0.9700 |
| O1—C10 | 1.409 (5) | C7—H7B | 0.9700 |
| N1—C5 | 1.319 (5) | C8—H8A | 0.9700 |
| N1—C1 | 1.339 (4) | C8—H8B | 0.9700 |
| N2—C6 | 1.253 (4) | C9—C10 | 1.492 (5) |
| N2—C7 | 1.462 (5) | C9—H9A | 0.9700 |
| N3—C8 | 1.475 (4) | C9—H9B | 0.9700 |
| N3—C9 | 1.479 (4) | C10—H10A | 0.9700 |
| N3—C12 | 1.486 (4) | C10—H10B | 0.9700 |
| N4—C13 | 1.137 (4) | C11—C12 | 1.500 (6) |
| N5—C14 | 1.122 (4) | C11—H11A | 0.9700 |
| C1—C2 | 1.375 (5) | C11—H11B | 0.9700 |
| C1—C6 | 1.471 (5) | C12—H12A | 0.9700 |
| C2—C3 | 1.374 (6) | C12—H12B | 0.9700 |
| C2—H2 | 0.9300 | ||
| N5—Zn1—N4 | 117.35 (16) | N2—C6—H6 | 120.4 |
| N5—Zn1—N2 | 126.27 (15) | C1—C6—H6 | 120.4 |
| N4—Zn1—N2 | 114.94 (12) | N2—C7—C8 | 107.8 (3) |
| N5—Zn1—N1 | 91.02 (12) | N2—C7—H7A | 110.1 |
| N4—Zn1—N1 | 93.10 (12) | C8—C7—H7A | 110.1 |
| N2—Zn1—N1 | 74.60 (11) | N2—C7—H7B | 110.1 |
| N5—Zn1—N3 | 104.43 (12) | C8—C7—H7B | 110.1 |
| N4—Zn1—N3 | 97.98 (11) | H7A—C7—H7B | 108.5 |
| N2—Zn1—N3 | 79.39 (11) | N3—C8—C7 | 112.0 (3) |
| N1—Zn1—N3 | 153.98 (10) | N3—C8—H8A | 109.2 |
| C11—O1—C10 | 109.3 (3) | C7—C8—H8A | 109.2 |
| C5—N1—C1 | 117.5 (3) | N3—C8—H8B | 109.2 |
| C5—N1—Zn1 | 130.3 (2) | C7—C8—H8B | 109.2 |
| C1—N1—Zn1 | 112.2 (2) | H8A—C8—H8B | 107.9 |
| C6—N2—C7 | 123.2 (3) | N3—C9—C10 | 112.0 (3) |
| C6—N2—Zn1 | 119.9 (2) | N3—C9—H9A | 109.2 |
| C7—N2—Zn1 | 116.5 (2) | C10—C9—H9A | 109.2 |
| C8—N3—C9 | 110.1 (3) | N3—C9—H9B | 109.2 |
| C8—N3—C12 | 107.7 (3) | C10—C9—H9B | 109.2 |
| C9—N3—C12 | 107.8 (3) | H9A—C9—H9B | 107.9 |
| C8—N3—Zn1 | 100.9 (2) | O1—C10—C9 | 112.2 (3) |
| C9—N3—Zn1 | 115.6 (2) | O1—C10—H10A | 109.2 |
| C12—N3—Zn1 | 114.3 (2) | C9—C10—H10A | 109.2 |
| C13—N4—Zn1 | 159.8 (3) | O1—C10—H10B | 109.2 |
| C14—N5—Zn1 | 175.1 (3) | C9—C10—H10B | 109.2 |
| N1—C1—C2 | 123.0 (3) | H10A—C10—H10B | 107.9 |
| N1—C1—C6 | 113.7 (3) | O1—C11—C12 | 111.9 (3) |
| C2—C1—C6 | 123.3 (3) | O1—C11—H11A | 109.2 |
| C3—C2—C1 | 118.2 (3) | C12—C11—H11A | 109.2 |
| C3—C2—H2 | 120.9 | O1—C11—H11B | 109.2 |
| C1—C2—H2 | 120.9 | C12—C11—H11B | 109.2 |
| C4—C3—C2 | 119.4 (3) | H11A—C11—H11B | 107.9 |
| C4—C3—H3 | 120.3 | N3—C12—C11 | 110.8 (3) |
| C2—C3—H3 | 120.3 | N3—C12—H12A | 109.5 |
| C3—C4—C5 | 118.9 (4) | C11—C12—H12A | 109.5 |
| C3—C4—H4 | 120.6 | N3—C12—H12B | 109.5 |
| C5—C4—H4 | 120.6 | C11—C12—H12B | 109.5 |
| N1—C5—C4 | 123.0 (4) | H12A—C12—H12B | 108.1 |
| N1—C5—H5 | 118.5 | N4—C13—S1 | 179.4 (3) |
| C4—C5—H5 | 118.5 | N5—C14—S2 | 177.4 (3) |
| N2—C6—C1 | 119.3 (3) |
Footnotes
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: SU2087).
References
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Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536808044061/su2087sup1.cif
Structure factors: contains datablocks I. DOI: 10.1107/S1600536808044061/su2087Isup2.hkl
Additional supplementary materials: crystallographic information; 3D view; checkCIF report

