metal-organic compounds
Bis[2-(benzyliminomethyl)-4-chlorophenolato-κ2N,O]nickel(II)
aDepartment of Chemistry, Baoji University of Arts and Science, Baoji, Shaanxi 721007, People's Republic of China
*Correspondence e-mail: mingtian8001@163.com
In the mononuclear centrosymmetric title compound, [Ni(C14H11ClNO)2], the NiII atom, lying on a center of symmetry, is four-coordinated by two O atoms and two N atoms from two Schiff base ligands, forming a slightly distorted square-planar environment. The dihedral angle between the two aromatic rings of the ligand is 72.0 (2)°. No significant hydrogen bonding or π–π stacking interactions are observed.
Related literature
For bond-length data, see: Allen et al. (1987). For related literature, see: Christensen et al. (1997); Costes et al. (2005); Hu et al. (2005); Liu et al. (2006); Wallis & Cummings (1974); Yu (2006).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1998); cell SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2001); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536807054943/ci2496sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536807054943/ci2496Isup2.hkl
5-Chlorosalicylaldehyde (0.1 mmol, 15.7 mg), Ni(NO3)2.6H2O (0.1 mmol, 29.0 mg) and benzylamine (0.1 mmol, 10.7 mg) were dissolved in methanol (10 ml). The mixture was stirred for 30 min at room temperature to give a clear brown solution. After allowing the resulting solution to stand in air for 11 d, brown block-shaped crystals of compound (I) were formed on slow evaporation of the solvent. The crystals were collected, washed with methanol and dried in a vacuum desiccator using anhydrous CaCl2 (yield 54%). Analysis found: C 61.30, H 4.0%; calculated for Ni(C14H11ClO)2: C 61.34, H 4.01%.
All H atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C—H distances in the range 0.93–0.97 Å and Uiso(H) = 1.2Ueq(C).
Recently, we have reported a Schiff base nickel(II) complex (Hu et al., 2005). Owing to the nickel complexes derived from Schiff base ligands possess interesting structures and wide applications (Costes et al., 2005; Wallis & Cummings, 1974; Christensen et al., 1997; Liu et al., 2006); Yu, 2006), we report here the
of a new Schiff base nickel(II) complex, title compound, (I),Compound (I) is a mononuclear centrosymmetric NiII complex (Fig. 1) The Ni atom, lying on the center of symmetry, is four-coordainated by two O atoms and two N atoms from two Schiff base ligands, forming a slightly distorted square-planar environment (Table 1). The bond lengths and angles of the ligands show normal values (Allen et al., 1987). The dihedral angle between the two aromatic rings of the ligand is 72.0 (2)°. No significant hydrogen bonding or π-π stacking interactions are observed.
For bond-length data, see: Allen et al. (1987). For related literature, see: Christensen et al. (1997); Costes et al. (2005); Hu et al. (2005); Liu et al. (2006); Wallis & Cummings (1974); Yu (2006).
Data collection: SMART (Bruker, 1998); cell
SAINT (Bruker, 2001); data reduction: SAINT (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 1997); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997); molecular graphics: SHELXTL (Bruker, 2001); software used to prepare material for publication: SHELXTL (Bruker, 2001).[Ni(C14H11ClNO)2] | F(000) = 564 |
Mr = 548.09 | Dx = 1.521 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 1825 reflections |
a = 13.6785 (17) Å | θ = 2.5–25.2° |
b = 10.5986 (14) Å | µ = 1.06 mm−1 |
c = 8.6560 (13) Å | T = 298 K |
β = 107.529 (2)° | Rhombus, green |
V = 1196.6 (3) Å3 | 0.56 × 0.44 × 0.32 mm |
Z = 2 |
Bruker SMART CCD diffractometer | 2110 independent reflections |
Radiation source: fine-focus sealed tube | 1506 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.039 |
φ and ω scans | θmax = 25.0°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −16→12 |
Tmin = 0.587, Tmax = 0.727 | k = −12→8 |
5718 measured reflections | l = −10→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)] = 0.043 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.124 | H-atom parameters constrained |
S = 1.08 | w = 1/[σ2(Fo2) + (0.057P)2 + 0.6708P] where P = (Fo2 + 2Fc2)/3 |
2110 reflections | (Δ/σ)max = 0.001 |
160 parameters | Δρmax = 0.53 e Å−3 |
0 restraints | Δρmin = −0.28 e Å−3 |
[Ni(C14H11ClNO)2] | V = 1196.6 (3) Å3 |
Mr = 548.09 | Z = 2 |
Monoclinic, P21/c | Mo Kα radiation |
a = 13.6785 (17) Å | µ = 1.06 mm−1 |
b = 10.5986 (14) Å | T = 298 K |
c = 8.6560 (13) Å | 0.56 × 0.44 × 0.32 mm |
β = 107.529 (2)° |
Bruker SMART CCD diffractometer | 2110 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 1506 reflections with I > 2σ(I) |
Tmin = 0.587, Tmax = 0.727 | Rint = 0.039 |
5718 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 0 restraints |
wR(F2) = 0.124 | H-atom parameters constrained |
S = 1.08 | Δρmax = 0.53 e Å−3 |
2110 reflections | Δρmin = −0.28 e Å−3 |
160 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 | ||
Ni1 | 0.0000 | 0.5000 | 0.0000 | 0.0329 (2) | |
Cl1 | 0.48272 (9) | 0.77502 (16) | 0.44350 (18) | 0.0919 (6) | |
N1 | 0.0104 (2) | 0.6504 (3) | 0.1288 (3) | 0.0316 (7) | |
O1 | 0.13607 (19) | 0.4664 (3) | 0.0829 (3) | 0.0472 (7) | |
C1 | 0.0949 (3) | 0.7006 (4) | 0.2141 (4) | 0.0354 (8) | |
H1 | 0.0899 | 0.7737 | 0.2705 | 0.043* | |
C2 | 0.1963 (3) | 0.6549 (4) | 0.2309 (4) | 0.0359 (9) | |
C3 | 0.2107 (3) | 0.5393 (4) | 0.1629 (4) | 0.0365 (9) | |
C4 | 0.3123 (3) | 0.4982 (4) | 0.1878 (5) | 0.0467 (10) | |
H4 | 0.3240 | 0.4208 | 0.1461 | 0.056* | |
C5 | 0.3939 (3) | 0.5699 (5) | 0.2720 (5) | 0.0528 (11) | |
H5 | 0.4603 | 0.5418 | 0.2855 | 0.063* | |
C6 | 0.3779 (3) | 0.6840 (5) | 0.3372 (5) | 0.0520 (11) | |
C7 | 0.2809 (3) | 0.7283 (4) | 0.3197 (5) | 0.0451 (10) | |
H7 | 0.2710 | 0.8048 | 0.3653 | 0.054* | |
C8 | −0.0831 (3) | 0.7179 (4) | 0.1351 (4) | 0.0369 (9) | |
H8A | −0.1254 | 0.7353 | 0.0253 | 0.044* | |
H8B | −0.0633 | 0.7982 | 0.1893 | 0.044* | |
C9 | −0.1461 (2) | 0.6457 (3) | 0.2219 (4) | 0.0316 (8) | |
C10 | −0.1084 (3) | 0.5490 (4) | 0.3262 (4) | 0.0393 (9) | |
H10 | −0.0411 | 0.5225 | 0.3438 | 0.047* | |
C11 | −0.1688 (3) | 0.4897 (4) | 0.4064 (5) | 0.0469 (10) | |
H11 | −0.1422 | 0.4233 | 0.4767 | 0.056* | |
C12 | −0.2678 (3) | 0.5281 (4) | 0.3827 (5) | 0.0533 (12) | |
H12 | −0.3087 | 0.4878 | 0.4361 | 0.064* | |
C13 | −0.3059 (3) | 0.6264 (5) | 0.2799 (5) | 0.0553 (12) | |
H13 | −0.3725 | 0.6544 | 0.2651 | 0.066* | |
C14 | −0.2457 (3) | 0.6839 (4) | 0.1983 (5) | 0.0458 (10) | |
H14 | −0.2727 | 0.7493 | 0.1265 | 0.055* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ni1 | 0.0295 (4) | 0.0348 (4) | 0.0367 (4) | −0.0008 (3) | 0.0133 (3) | −0.0002 (3) |
Cl1 | 0.0415 (7) | 0.1240 (14) | 0.1083 (11) | −0.0314 (7) | 0.0197 (7) | −0.0503 (10) |
N1 | 0.0291 (15) | 0.0328 (17) | 0.0363 (16) | 0.0014 (13) | 0.0152 (13) | 0.0075 (13) |
O1 | 0.0307 (14) | 0.0475 (19) | 0.0590 (17) | 0.0032 (11) | 0.0070 (13) | −0.0124 (13) |
C1 | 0.040 (2) | 0.031 (2) | 0.040 (2) | −0.0020 (16) | 0.0191 (17) | 0.0023 (16) |
C2 | 0.0311 (19) | 0.043 (2) | 0.035 (2) | −0.0034 (17) | 0.0123 (15) | 0.0036 (18) |
C3 | 0.033 (2) | 0.045 (2) | 0.035 (2) | −0.0018 (16) | 0.0137 (17) | 0.0024 (17) |
C4 | 0.035 (2) | 0.053 (3) | 0.054 (2) | 0.0008 (19) | 0.0156 (18) | −0.010 (2) |
C5 | 0.031 (2) | 0.069 (3) | 0.059 (3) | −0.001 (2) | 0.0156 (19) | −0.005 (2) |
C6 | 0.034 (2) | 0.073 (3) | 0.050 (2) | −0.014 (2) | 0.0137 (18) | −0.008 (2) |
C7 | 0.037 (2) | 0.049 (3) | 0.051 (2) | −0.0103 (18) | 0.0162 (18) | −0.008 (2) |
C8 | 0.038 (2) | 0.032 (2) | 0.043 (2) | 0.0018 (16) | 0.0163 (17) | 0.0026 (17) |
C9 | 0.0308 (18) | 0.033 (2) | 0.0309 (19) | −0.0009 (15) | 0.0095 (15) | −0.0046 (16) |
C10 | 0.039 (2) | 0.037 (2) | 0.043 (2) | 0.0046 (17) | 0.0142 (17) | 0.0024 (18) |
C11 | 0.055 (3) | 0.043 (2) | 0.047 (2) | 0.003 (2) | 0.0222 (19) | 0.009 (2) |
C12 | 0.049 (2) | 0.067 (3) | 0.053 (2) | −0.012 (2) | 0.029 (2) | −0.001 (2) |
C13 | 0.035 (2) | 0.079 (4) | 0.055 (3) | 0.005 (2) | 0.019 (2) | 0.002 (2) |
C14 | 0.040 (2) | 0.055 (3) | 0.043 (2) | 0.0121 (19) | 0.0139 (18) | 0.010 (2) |
Ni1—O1 | 1.817 (2) | C6—C7 | 1.372 (5) |
Ni1—O1i | 1.817 (2) | C7—H7 | 0.93 |
Ni1—N1i | 1.926 (3) | C8—C9 | 1.510 (5) |
Ni1—N1 | 1.926 (3) | C8—H8A | 0.97 |
Cl1—C6 | 1.743 (4) | C8—H8B | 0.97 |
N1—C1 | 1.284 (4) | C9—C10 | 1.361 (5) |
N1—C8 | 1.480 (4) | C9—C14 | 1.377 (5) |
O1—C3 | 1.301 (4) | C10—C11 | 1.380 (5) |
C1—C2 | 1.434 (5) | C10—H10 | 0.93 |
C1—H1 | 0.93 | C11—C12 | 1.369 (6) |
C2—C3 | 1.399 (5) | C11—H11 | 0.93 |
C2—C7 | 1.414 (5) | C12—C13 | 1.367 (6) |
C3—C4 | 1.409 (5) | C12—H12 | 0.93 |
C4—C5 | 1.365 (6) | C13—C14 | 1.378 (6) |
C4—H4 | 0.93 | C13—H13 | 0.93 |
C5—C6 | 1.379 (6) | C14—H14 | 0.93 |
C5—H5 | 0.93 | ||
O1—Ni1—O1i | 180 | C6—C7—C2 | 118.6 (4) |
O1—Ni1—N1i | 87.39 (11) | C6—C7—H7 | 120.7 |
O1i—Ni1—N1i | 92.61 (11) | C2—C7—H7 | 120.7 |
O1—Ni1—N1 | 92.61 (11) | N1—C8—C9 | 113.7 (3) |
O1i—Ni1—N1 | 87.39 (11) | N1—C8—H8A | 108.8 |
N1i—Ni1—N1 | 180.00 (14) | C9—C8—H8A | 108.8 |
C1—N1—C8 | 114.6 (3) | N1—C8—H8B | 108.8 |
C1—N1—Ni1 | 124.9 (2) | C9—C8—H8B | 108.8 |
C8—N1—Ni1 | 120.5 (2) | H8A—C8—H8B | 107.7 |
C3—O1—Ni1 | 129.8 (3) | C10—C9—C14 | 118.7 (3) |
N1—C1—C2 | 126.4 (4) | C10—C9—C8 | 123.5 (3) |
N1—C1—H1 | 116.8 | C14—C9—C8 | 117.7 (3) |
C2—C1—H1 | 116.8 | C9—C10—C11 | 120.8 (3) |
C3—C2—C7 | 120.9 (3) | C9—C10—H10 | 119.6 |
C3—C2—C1 | 120.5 (3) | C11—C10—H10 | 119.6 |
C7—C2—C1 | 118.5 (4) | C12—C11—C10 | 120.3 (4) |
O1—C3—C2 | 123.8 (3) | C12—C11—H11 | 119.9 |
O1—C3—C4 | 118.5 (4) | C10—C11—H11 | 119.9 |
C2—C3—C4 | 117.6 (3) | C13—C12—C11 | 119.4 (4) |
C5—C4—C3 | 121.3 (4) | C13—C12—H12 | 120.3 |
C5—C4—H4 | 119.3 | C11—C12—H12 | 120.3 |
C3—C4—H4 | 119.3 | C12—C13—C14 | 120.1 (4) |
C4—C5—C6 | 120.1 (4) | C12—C13—H13 | 120.0 |
C4—C5—H5 | 120.0 | C14—C13—H13 | 120.0 |
C6—C5—H5 | 120.0 | C9—C14—C13 | 120.7 (4) |
C7—C6—C5 | 121.4 (4) | C9—C14—H14 | 119.6 |
C7—C6—Cl1 | 118.9 (4) | C13—C14—H14 | 119.6 |
C5—C6—Cl1 | 119.6 (3) | ||
O1—Ni1—N1—C1 | 9.0 (3) | C4—C5—C6—C7 | 0.0 (7) |
O1i—Ni1—N1—C1 | −171.0 (3) | C4—C5—C6—Cl1 | −179.7 (3) |
O1—Ni1—N1—C8 | −171.1 (2) | C5—C6—C7—C2 | −0.8 (6) |
O1i—Ni1—N1—C8 | 8.9 (2) | Cl1—C6—C7—C2 | 178.9 (3) |
N1i—Ni1—O1—C3 | 164.0 (3) | C3—C2—C7—C6 | 0.4 (5) |
N1—Ni1—O1—C3 | −16.0 (3) | C1—C2—C7—C6 | 179.3 (3) |
C8—N1—C1—C2 | 179.6 (3) | C1—N1—C8—C9 | −111.5 (3) |
Ni1—N1—C1—C2 | −0.4 (5) | Ni1—N1—C8—C9 | 68.5 (3) |
N1—C1—C2—C3 | −6.1 (6) | N1—C8—C9—C10 | 19.2 (5) |
N1—C1—C2—C7 | 174.9 (3) | N1—C8—C9—C14 | −163.5 (3) |
Ni1—O1—C3—C2 | 14.1 (5) | C14—C9—C10—C11 | 0.4 (6) |
Ni1—O1—C3—C4 | −168.2 (3) | C8—C9—C10—C11 | 177.6 (4) |
C7—C2—C3—O1 | 178.5 (3) | C9—C10—C11—C12 | −0.5 (6) |
C1—C2—C3—O1 | −0.5 (5) | C10—C11—C12—C13 | −0.5 (6) |
C7—C2—C3—C4 | 0.7 (5) | C11—C12—C13—C14 | 1.5 (7) |
C1—C2—C3—C4 | −178.2 (3) | C10—C9—C14—C13 | 0.7 (6) |
O1—C3—C4—C5 | −179.4 (4) | C8—C9—C14—C13 | −176.8 (4) |
C2—C3—C4—C5 | −1.5 (6) | C12—C13—C14—C9 | −1.6 (7) |
C3—C4—C5—C6 | 1.1 (6) |
Symmetry code: (i) −x, −y+1, −z. |
Experimental details
Crystal data | |
Chemical formula | [Ni(C14H11ClNO)2] |
Mr | 548.09 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 298 |
a, b, c (Å) | 13.6785 (17), 10.5986 (14), 8.6560 (13) |
β (°) | 107.529 (2) |
V (Å3) | 1196.6 (3) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.06 |
Crystal size (mm) | 0.56 × 0.44 × 0.32 |
Data collection | |
Diffractometer | Bruker SMART CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.587, 0.727 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5718, 2110, 1506 |
Rint | 0.039 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.124, 1.08 |
No. of reflections | 2110 |
No. of parameters | 160 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.53, −0.28 |
Computer programs: SMART (Bruker, 1998), SAINT (Bruker, 2001), SHELXS97 (Sheldrick, 1997), SHELXL97 (Sheldrick, 1997), SHELXTL (Bruker, 2001).
Ni1—O1 | 1.817 (2) | Ni1—N1 | 1.926 (3) |
O1—Ni1—O1i | 180 | O1—Ni1—N1 | 92.61 (11) |
O1—Ni1—N1i | 87.39 (11) |
Symmetry code: (i) −x, −y+1, −z. |
Acknowledgements
Financial support by the Phytochemistry Key Laboratory of Shaanxi province (grant No. 02js40) is gratefully acknowledged.
References
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Recently, we have reported a Schiff base nickel(II) complex (Hu et al., 2005). Owing to the nickel complexes derived from Schiff base ligands possess interesting structures and wide applications (Costes et al., 2005; Wallis & Cummings, 1974; Christensen et al., 1997; Liu et al., 2006); Yu, 2006), we report here the crystal structure of a new Schiff base nickel(II) complex, title compound, (I),
Compound (I) is a mononuclear centrosymmetric NiII complex (Fig. 1) The Ni atom, lying on the center of symmetry, is four-coordainated by two O atoms and two N atoms from two Schiff base ligands, forming a slightly distorted square-planar environment (Table 1). The bond lengths and angles of the ligands show normal values (Allen et al., 1987). The dihedral angle between the two aromatic rings of the ligand is 72.0 (2)°. No significant hydrogen bonding or π-π stacking interactions are observed.