metal-organic compounds
Bis{6-bromo-4-chloro-2-[(E)-(2-chlorophenyl)iminomethyl]phenolato-κ2N,O}copper(II)
aDepartment of Chemistry, Xianyang Normal University, Xianyang, Shaanxi 712000, People's Republic of China
*Correspondence e-mail: xianyangzhangpin@163.com
In the title compound, [Cu(C13H7BrCl2NO)2], or CuL2 {where HL= 2-[(E)-(2-chlorophenylimino)methyl]-6-bromo-4-chlorophenol}, the CuII atom is located on an inversion center and has a square-planar coordination. In the crystal, complex molecules are linked via Cu⋯Cl interactions [2.9933 (11) Å], forming a two-dimensional network parallel to the bc plane. They are also Cl⋯Cl interactions [3.3709 (14) Å] present, which consolidate the two-dimensional network structure.
Related literature
For applications and properties of bidentate Schiff base ligands and their metal complexes, see: Akine et al. (2002); Schuetz et al. (2004); Singh et al. (1997); Qi et al. (2007).
Experimental
Crystal data
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Data collection: CrystalClear (Rigaku, 2008); cell CrystalClear; data reduction: CrystalClear; 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.
Supporting information
https://doi.org/10.1107/S1600536812025044/su2417sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812025044/su2417Isup2.hkl
To an methanol solution (10 ml) containing 4-chlorobenzenamine (0.2 mmol, 25.4 mg) and 3-bromo-5-chlorosalicylaldehyde (0.2 mmol, 47.2 mg) was added CuCl2.2H2O (0.1 mmol, 17.1 mg) in methanol (10 ml). The mixture was stirred for 30 min and then filtered. The filtrate was left to stand undisturbed at room temperature. Dark-green prism-like crystals of the title complex was obtained by slow evaporation of the methanol solvent.
The C bound H atoms were included in calculated positions and treated as riding atoms: C—H = 0.93 Å with Uiso(H) = 1.2Ueq(C).
Bidentate Schiff base ligands of various types and their metal complexes have proved to be of significant interest in the areas of
(Akine et al., 2002), catalysis (Schuetz et al., 2004), magnetism (Singh et al., 1997) and molecular architectures (Qi et al., 2007). The title complex was obtained from the reaction of 3-bromo-5-chlorosalicylaldehyde, 4-chlorobenzenamine and CuCl2.2H2O. We report herein on the synthesis and of the title compound.The molecular structure of the title complex, CuL2, is shown in Fig. 1. The central CuII atom lies on an inversion center and has a square-planar coordination geometry, through the formation of two Cu—N and two Cu—O bonds with two bidentate 2-((E)-(2- chlorophenylimino)methyl)-6-bromo-4-chlorophenol (HL) ligands. The dihedral angle between the phenyl ring (C1—C6) and the chelate ring (O1/Cu1/N1/C7/C6/C1) is only 6.2() °. The two benzene rings in each ligand are inclined to one another by 65.97 (10)°. Bond angles also show that the coordination geometry about the copper atom is a slightly distorted square planar structure, with O1—Cu1—N1, O1A—Cu1—O1 and O1—Cu1—N1A angles of 91.24 (7) °, 180 ° and 88.76 (7) °, respectively [symmetry code: (A) = -x+1, -y+1, -z+1]. The Cu1—O1 and Cu1—N1 bond lengths are 1.9076 (16) and 2.005 (2) Å, respectively.
In the crystal, molecules are linked via Cu1···Cli interactions with a distance of 2.9933 (11) Å [symmetry code: (i) x, -y+0.5, z-0.5] which results in the formation of a two-dimensional network parallel to the bc plane (Fig. 2). There are also Cl1···Cl2ii interactions present involving adjacent molecules [symmetry code: (ii) x+1, y, z+1] with distance 3.3709 (14) Å, which consolidate the two-dimensional network structure.
For applications and properties of bidentate Schiff base ligands and their metal complexes, see: Akine et al. (2002); Schuetz et al. (2004); Singh et al. (1997); Qi et al. (2007).
Data collection: CrystalClear (Rigaku, 2008); cell
CrystalClear (Rigaku, 2008); data reduction: CrystalClear (Rigaku, 2008); 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 (Sheldrick, 2008).[Cu(C13H7BrCl2NO)2] | F(000) = 734 |
Mr = 751.55 | Dx = 1.904 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 4339 reflections |
a = 11.064 (3) Å | θ = 2.1–29.1° |
b = 9.437 (2) Å | µ = 4.32 mm−1 |
c = 13.277 (4) Å | T = 153 K |
β = 108.997 (3)° | Block, green |
V = 1310.8 (6) Å3 | 0.46 × 0.42 × 0.42 mm |
Z = 2 |
Rigaku AFC10/Saturn724+ diffractometer | 3491 independent reflections |
Radiation source: Rotating Anode | 2777 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.033 |
Detector resolution: 28.5714 pixels mm-1 | θmax = 29.1°, θmin = 2.7° |
phi and ω scans | h = −13→15 |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2008) | k = −9→12 |
Tmin = 0.242, Tmax = 0.265 | l = −18→18 |
10994 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)] = 0.028 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.065 | H-atom parameters constrained |
S = 1.00 | w = 1/[σ2(Fo2) + (0.031P)2 + 0.160P] where P = (Fo2 + 2Fc2)/3 |
3491 reflections | (Δ/σ)max = 0.001 |
169 parameters | Δρmax = 0.53 e Å−3 |
0 restraints | Δρmin = −0.49 e Å−3 |
[Cu(C13H7BrCl2NO)2] | V = 1310.8 (6) Å3 |
Mr = 751.55 | Z = 2 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.064 (3) Å | µ = 4.32 mm−1 |
b = 9.437 (2) Å | T = 153 K |
c = 13.277 (4) Å | 0.46 × 0.42 × 0.42 mm |
β = 108.997 (3)° |
Rigaku AFC10/Saturn724+ diffractometer | 3491 independent reflections |
Absorption correction: multi-scan (CrystalClear; Rigaku, 2008) | 2777 reflections with I > 2σ(I) |
Tmin = 0.242, Tmax = 0.265 | Rint = 0.033 |
10994 measured reflections |
R[F2 > 2σ(F2)] = 0.028 | 0 restraints |
wR(F2) = 0.065 | H-atom parameters constrained |
S = 1.00 | Δρmax = 0.53 e Å−3 |
3491 reflections | Δρmin = −0.49 e Å−3 |
169 parameters |
Geometry. Bond distances, angles etc. have been calculated using the rounded fractional coordinates. All su's are estimated from the variances of the (full) variance-covariance matrix. The cell esds are taken into account in the estimation of distances, angles and torsion angles |
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 | ||
Br1 | 0.84869 (2) | 0.57837 (3) | 0.82867 (2) | 0.0231 (1) | |
Cu1 | 0.50000 | 0.50000 | 0.50000 | 0.0154 (1) | |
Cl1 | 0.56447 (5) | 0.30682 (6) | 1.04373 (4) | 0.0204 (2) | |
Cl2 | −0.17769 (6) | 0.39010 (9) | 0.25396 (6) | 0.0444 (2) | |
O1 | 0.60785 (15) | 0.52907 (17) | 0.64325 (12) | 0.0175 (5) | |
N1 | 0.35254 (17) | 0.4484 (2) | 0.54915 (14) | 0.0159 (5) | |
C1 | 0.5950 (2) | 0.4776 (2) | 0.73017 (17) | 0.0148 (6) | |
C2 | 0.6964 (2) | 0.4879 (2) | 0.82837 (18) | 0.0170 (7) | |
C3 | 0.6887 (2) | 0.4339 (2) | 0.92251 (17) | 0.0178 (6) | |
C4 | 0.5768 (2) | 0.3680 (2) | 0.92269 (17) | 0.0178 (7) | |
C5 | 0.4741 (2) | 0.3556 (2) | 0.83107 (17) | 0.0180 (7) | |
C6 | 0.4826 (2) | 0.4100 (2) | 0.73471 (17) | 0.0165 (7) | |
C7 | 0.3676 (2) | 0.4035 (2) | 0.64418 (18) | 0.0177 (7) | |
C8 | 0.2249 (2) | 0.4343 (2) | 0.47615 (17) | 0.0175 (6) | |
C9 | 0.1727 (2) | 0.3013 (3) | 0.44708 (18) | 0.0218 (7) | |
C10 | 0.0474 (2) | 0.2874 (3) | 0.38026 (19) | 0.0254 (8) | |
C11 | −0.0229 (2) | 0.4077 (3) | 0.34322 (19) | 0.0247 (7) | |
C12 | 0.0273 (2) | 0.5410 (3) | 0.3717 (2) | 0.0263 (8) | |
C13 | 0.1522 (2) | 0.5547 (3) | 0.43829 (19) | 0.0219 (7) | |
H3 | 0.75910 | 0.44180 | 0.98640 | 0.0210* | |
H5 | 0.39790 | 0.31070 | 0.83260 | 0.0220* | |
H7 | 0.29510 | 0.36170 | 0.65570 | 0.0210* | |
H9 | 0.22280 | 0.21920 | 0.47300 | 0.0260* | |
H10 | 0.01090 | 0.19630 | 0.36050 | 0.0300* | |
H12 | −0.02350 | 0.62270 | 0.34580 | 0.0320* | |
H13 | 0.18810 | 0.64610 | 0.45800 | 0.0260* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Br1 | 0.0173 (1) | 0.0301 (2) | 0.0214 (1) | −0.0056 (1) | 0.0054 (1) | −0.0027 (1) |
Cu1 | 0.0132 (2) | 0.0197 (2) | 0.0126 (2) | −0.0016 (2) | 0.0033 (1) | 0.0003 (2) |
Cl1 | 0.0253 (3) | 0.0211 (3) | 0.0134 (2) | −0.0044 (2) | 0.0045 (2) | 0.0031 (2) |
Cl2 | 0.0161 (3) | 0.0692 (5) | 0.0384 (4) | −0.0005 (3) | −0.0041 (3) | −0.0151 (4) |
O1 | 0.0160 (8) | 0.0240 (9) | 0.0119 (7) | −0.0035 (7) | 0.0038 (6) | 0.0001 (6) |
N1 | 0.0124 (9) | 0.0185 (10) | 0.0163 (9) | −0.0004 (7) | 0.0041 (7) | 0.0005 (7) |
C1 | 0.0163 (10) | 0.0123 (11) | 0.0157 (11) | 0.0000 (8) | 0.0051 (9) | −0.0008 (8) |
C2 | 0.0168 (11) | 0.0155 (12) | 0.0187 (11) | −0.0007 (9) | 0.0056 (9) | −0.0023 (9) |
C3 | 0.0176 (11) | 0.0172 (12) | 0.0156 (10) | 0.0007 (9) | 0.0015 (9) | −0.0011 (9) |
C4 | 0.0221 (12) | 0.0156 (12) | 0.0148 (10) | 0.0007 (9) | 0.0047 (9) | 0.0013 (9) |
C5 | 0.0187 (11) | 0.0179 (12) | 0.0168 (11) | −0.0023 (9) | 0.0051 (9) | 0.0004 (9) |
C6 | 0.0161 (11) | 0.0169 (12) | 0.0149 (11) | 0.0004 (9) | 0.0029 (9) | 0.0001 (8) |
C7 | 0.0166 (11) | 0.0181 (12) | 0.0183 (11) | −0.0019 (9) | 0.0056 (9) | −0.0006 (9) |
C8 | 0.0139 (10) | 0.0251 (13) | 0.0140 (10) | −0.0019 (9) | 0.0052 (9) | 0.0000 (9) |
C9 | 0.0199 (12) | 0.0233 (13) | 0.0204 (12) | −0.0033 (10) | 0.0040 (10) | 0.0019 (9) |
C10 | 0.0246 (13) | 0.0267 (14) | 0.0237 (12) | −0.0097 (11) | 0.0062 (10) | −0.0032 (10) |
C11 | 0.0114 (11) | 0.0438 (16) | 0.0174 (11) | −0.0013 (10) | 0.0027 (9) | −0.0051 (10) |
C12 | 0.0179 (12) | 0.0345 (15) | 0.0250 (13) | 0.0084 (11) | 0.0050 (10) | −0.0012 (11) |
C13 | 0.0203 (12) | 0.0219 (13) | 0.0232 (12) | 0.0004 (10) | 0.0066 (10) | 0.0000 (10) |
Br1—C2 | 1.888 (2) | C4—C5 | 1.373 (3) |
Cu1—O1 | 1.9076 (16) | C5—C6 | 1.410 (3) |
Cu1—N1 | 2.005 (2) | C6—C7 | 1.439 (3) |
Cu1—Cl1i | 2.9933 (11) | C8—C9 | 1.383 (3) |
Cu1—O1ii | 1.9076 (16) | C8—C13 | 1.388 (3) |
Cu1—N1ii | 2.005 (2) | C9—C10 | 1.388 (3) |
Cu1—Cl1iii | 2.9933 (11) | C10—C11 | 1.374 (4) |
Cl1—C4 | 1.754 (2) | C11—C12 | 1.377 (4) |
Cl2—C11 | 1.745 (3) | C12—C13 | 1.383 (3) |
O1—C1 | 1.302 (3) | C3—H3 | 0.9500 |
N1—C7 | 1.289 (3) | C5—H5 | 0.9500 |
N1—C8 | 1.435 (3) | C7—H7 | 0.9500 |
C1—C2 | 1.420 (3) | C9—H9 | 0.9500 |
C1—C6 | 1.416 (3) | C10—H10 | 0.9500 |
C2—C3 | 1.378 (3) | C12—H12 | 0.9500 |
C3—C4 | 1.386 (3) | C13—H13 | 0.9500 |
O1—Cu1—N1 | 91.24 (7) | C4—C5—C6 | 119.5 (2) |
Cl1i—Cu1—O1 | 94.96 (5) | C1—C6—C5 | 121.4 (2) |
O1—Cu1—O1ii | 180.00 | C1—C6—C7 | 122.24 (19) |
O1—Cu1—N1ii | 88.76 (7) | C5—C6—C7 | 116.1 (2) |
Cl1iii—Cu1—O1 | 85.04 (5) | N1—C7—C6 | 126.9 (2) |
Cl1i—Cu1—N1 | 97.49 (6) | N1—C8—C9 | 120.15 (19) |
O1ii—Cu1—N1 | 88.76 (7) | N1—C8—C13 | 119.69 (19) |
N1—Cu1—N1ii | 180.00 | C9—C8—C13 | 120.1 (2) |
Cl1iii—Cu1—N1 | 82.51 (6) | C8—C9—C10 | 120.3 (2) |
Cl1i—Cu1—O1ii | 85.04 (5) | C9—C10—C11 | 118.8 (3) |
Cl1i—Cu1—N1ii | 82.51 (6) | Cl2—C11—C10 | 118.7 (2) |
Cl1i—Cu1—Cl1iii | 180.00 | Cl2—C11—C12 | 119.5 (2) |
O1ii—Cu1—N1ii | 91.24 (7) | C10—C11—C12 | 121.7 (2) |
Cl1iii—Cu1—O1ii | 94.96 (5) | C11—C12—C13 | 119.4 (2) |
Cl1iii—Cu1—N1ii | 97.49 (6) | C8—C13—C12 | 119.7 (2) |
Cu1iv—Cl1—C4 | 103.02 (7) | C2—C3—H3 | 120.00 |
Cu1—O1—C1 | 128.08 (15) | C4—C3—H3 | 120.00 |
Cu1—N1—C7 | 122.60 (16) | C4—C5—H5 | 120.00 |
Cu1—N1—C8 | 121.93 (14) | C6—C5—H5 | 120.00 |
C7—N1—C8 | 114.56 (19) | N1—C7—H7 | 117.00 |
O1—C1—C2 | 120.5 (2) | C6—C7—H7 | 117.00 |
O1—C1—C6 | 123.8 (2) | C8—C9—H9 | 120.00 |
C2—C1—C6 | 115.73 (19) | C10—C9—H9 | 120.00 |
Br1—C2—C1 | 118.09 (16) | C9—C10—H10 | 121.00 |
Br1—C2—C3 | 118.95 (17) | C11—C10—H10 | 121.00 |
C1—C2—C3 | 123.0 (2) | C11—C12—H12 | 120.00 |
C2—C3—C4 | 119.1 (2) | C13—C12—H12 | 120.00 |
Cl1—C4—C3 | 119.02 (17) | C8—C13—H13 | 120.00 |
Cl1—C4—C5 | 119.67 (17) | C12—C13—H13 | 120.00 |
C3—C4—C5 | 121.3 (2) | ||
N1—Cu1—O1—C1 | 22.33 (18) | C6—C1—C2—C3 | 1.2 (3) |
Cl1i—Cu1—O1—C1 | 119.96 (17) | O1—C1—C6—C5 | 179.73 (19) |
N1ii—Cu1—O1—C1 | −157.67 (18) | O1—C1—C6—C7 | −5.7 (3) |
Cl1iii—Cu1—O1—C1 | −60.04 (17) | C2—C1—C6—C5 | −0.7 (3) |
O1—Cu1—N1—C7 | −22.22 (18) | C2—C1—C6—C7 | 173.92 (19) |
O1—Cu1—N1—C8 | 169.30 (16) | Br1—C2—C3—C4 | 179.69 (15) |
Cl1i—Cu1—N1—C7 | −117.39 (17) | C1—C2—C3—C4 | −0.9 (3) |
Cl1i—Cu1—N1—C8 | 74.13 (15) | C2—C3—C4—Cl1 | −177.01 (16) |
O1ii—Cu1—N1—C7 | 157.78 (18) | C2—C3—C4—C5 | 0.1 (3) |
O1ii—Cu1—N1—C8 | −10.70 (16) | Cl1—C4—C5—C6 | 177.47 (15) |
Cl1iii—Cu1—N1—C7 | 62.61 (17) | C3—C4—C5—C6 | 0.4 (3) |
Cl1iii—Cu1—N1—C8 | −105.88 (15) | C4—C5—C6—C1 | −0.1 (3) |
Cu1iv—Cl1—C4—C3 | −124.36 (15) | C4—C5—C6—C7 | −174.99 (18) |
Cu1iv—Cl1—C4—C5 | 58.52 (17) | C1—C6—C7—N1 | 4.1 (3) |
Cu1—O1—C1—C2 | 167.99 (14) | C5—C6—C7—N1 | 178.9 (2) |
Cu1—O1—C1—C6 | −12.4 (3) | N1—C8—C9—C10 | 177.1 (2) |
Cu1—N1—C7—C6 | 13.8 (3) | C13—C8—C9—C10 | −0.2 (3) |
C8—N1—C7—C6 | −176.95 (19) | N1—C8—C13—C12 | −177.1 (2) |
Cu1—N1—C8—C9 | 103.7 (2) | C9—C8—C13—C12 | 0.2 (4) |
Cu1—N1—C8—C13 | −78.9 (2) | C8—C9—C10—C11 | 0.5 (3) |
C7—N1—C8—C9 | −65.6 (3) | C9—C10—C11—Cl2 | 176.83 (18) |
C7—N1—C8—C13 | 111.7 (2) | C9—C10—C11—C12 | −0.8 (4) |
O1—C1—C2—Br1 | 0.2 (3) | Cl2—C11—C12—C13 | −176.80 (19) |
O1—C1—C2—C3 | −179.21 (19) | C10—C11—C12—C13 | 0.8 (4) |
C6—C1—C2—Br1 | −179.41 (14) | C11—C12—C13—C8 | −0.5 (4) |
Symmetry codes: (i) −x+1, y+1/2, −z+3/2; (ii) −x+1, −y+1, −z+1; (iii) x, −y+1/2, z−1/2; (iv) −x+1, y−1/2, −z+3/2. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C13H7BrCl2NO)2] |
Mr | 751.55 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 153 |
a, b, c (Å) | 11.064 (3), 9.437 (2), 13.277 (4) |
β (°) | 108.997 (3) |
V (Å3) | 1310.8 (6) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 4.32 |
Crystal size (mm) | 0.46 × 0.42 × 0.42 |
Data collection | |
Diffractometer | Rigaku AFC10/Saturn724+ |
Absorption correction | Multi-scan (CrystalClear; Rigaku, 2008) |
Tmin, Tmax | 0.242, 0.265 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10994, 3491, 2777 |
Rint | 0.033 |
(sin θ/λ)max (Å−1) | 0.685 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.028, 0.065, 1.00 |
No. of reflections | 3491 |
No. of parameters | 169 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.53, −0.49 |
Computer programs: CrystalClear (Rigaku, 2008), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Acknowledgements
This work was supported by Xianyang Normal University in Shaanxi Province of the People's Republic of China.
References
Akine, S., Taniguchi, T. & Nabeshima, T. (2002). Angew. Chem. Int. Ed. 41, 4670–4673. Web of Science CSD CrossRef CAS Google Scholar
Qi, G. F., Yang, Z. Y. & Wang, B. D. (2007). Transition Met. Chem. 32, 233–239. Web of Science CrossRef CAS Google Scholar
Rigaku (2008). CrystalClear. Rigaku Corporation, Tokyo, Japan. Google Scholar
Schuetz, S. A., Silvernail, C. M. & Incarvito, C. D. (2004). Inorg. Chem. 43, 6203–6207. Web of Science CSD CrossRef PubMed CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Singh, P., Das, S. S. & Baranwal, B. P. (1997). Transition Met. Chem. 22, 164–166. CrossRef CAS Web of Science Google Scholar
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Bidentate Schiff base ligands of various types and their metal complexes have proved to be of significant interest in the areas of photoluminescence (Akine et al., 2002), catalysis (Schuetz et al., 2004), magnetism (Singh et al., 1997) and molecular architectures (Qi et al., 2007). The title complex was obtained from the reaction of 3-bromo-5-chlorosalicylaldehyde, 4-chlorobenzenamine and CuCl2.2H2O. We report herein on the synthesis and crystal structure of the title compound.
The molecular structure of the title complex, CuL2, is shown in Fig. 1. The central CuII atom lies on an inversion center and has a square-planar coordination geometry, through the formation of two Cu—N and two Cu—O bonds with two bidentate 2-((E)-(2- chlorophenylimino)methyl)-6-bromo-4-chlorophenol (HL) ligands. The dihedral angle between the phenyl ring (C1—C6) and the chelate ring (O1/Cu1/N1/C7/C6/C1) is only 6.2() °. The two benzene rings in each ligand are inclined to one another by 65.97 (10)°. Bond angles also show that the coordination geometry about the copper atom is a slightly distorted square planar structure, with O1—Cu1—N1, O1A—Cu1—O1 and O1—Cu1—N1A angles of 91.24 (7) °, 180 ° and 88.76 (7) °, respectively [symmetry code: (A) = -x+1, -y+1, -z+1]. The Cu1—O1 and Cu1—N1 bond lengths are 1.9076 (16) and 2.005 (2) Å, respectively.
In the crystal, molecules are linked via Cu1···Cli interactions with a distance of 2.9933 (11) Å [symmetry code: (i) x, -y+0.5, z-0.5] which results in the formation of a two-dimensional network parallel to the bc plane (Fig. 2). There are also Cl1···Cl2ii interactions present involving adjacent molecules [symmetry code: (ii) x+1, y, z+1] with distance 3.3709 (14) Å, which consolidate the two-dimensional network structure.