metal-organic compounds
Bis(2-methyl-1H-imidazole-κN3)bis[2-(naphthalen-2-yl)acetato-κO]copper(II)
aJiangsu Marine Resources Development Research Institute, Huaihai Institute of Technology, Lianyungang 222005, People's Republic of China, bDepartment of Mathematics and Science, Huaihai Institute of Technology, Lianyungang 222005, People's Republic of China, cDepartment of Chemical Engineering, Huaihai Institute of Technology, Lianyungang 222005, People's Republic of China, and dHuaiyin Insititute of Technology, Huaiyin 223003, People's Republic of China
*Correspondence e-mail: yfj1999@126.com
In the 12H9O2)2(C4H6N2)2], the Cu(II) cations are square-planar coordinated by two 1-naphthylacetate anions and two 2-methyl-imidazole ligands into discrete complexes that are located on centres of inversion. These complexes are linked into chains parallel to [010] by intermolecular N—H⋯O hydrogen bonding between the N—H H atom of the 2-methyl-imidazole ligands and the carboxylate O atoms that are not involved in metal coordination.
of the title compound, [Cu(CRelated literature
For related structures, see: Liu et al. (2007); Chen et al. (2004); Yang et al. (2008); Tang et al. (2006); Ji et al. (2011).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2007); cell SAINT (Bruker, 2007); 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.
Supporting information
https://doi.org/10.1107/S1600536811047969/nc2255sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536811047969/nc2255Isup2.hkl
The title compound was synthesized by the reaction of Cu(NO3)2.3 H2O (72.3 mg, 0.3 mmol), 1-naphthylacetic acid (93 mg, 0.5 mmol), 2-methylimidazole (32.8 mg, 0.4 mmol) and NaOH (20 mg, 0.5 mmol) in 4 mL of a water-ethanol mixture (volume ratio = 1:1 of water:ethanol) under solvothermal conditions. The starting mixture was homogenized and transferred into a sealed teflon-lined solvothermal bomb (volume: 25 ml) and heated at 140° for three days. After cooling green crystals of the title compound were obtained, which were washed with distilled water and absolute ethyl alcohol (yield: 44.6% based on Cu(NO3)2.3 H2O ).
The C-H H atoms were positioned with idealized geometry (methyl H atoms allowed to rotatae but not to tip) and were refined with Uiso(H) =1.2Ueq(C)] (1.5 for methyl H atoms) using a riding model.
The
of the title compound was determined as part of an ongoing study on the structural properties of copper complexes containing imidazole ligands. In this study 1-naphthylacetate was used as ligand, for which only a few metal complexes were reported (Liu et al.,2007; Chen et al., 2004; Yang et al., 2008; Tang et al.,2006 ; Ji et al.,2011).In the
of the title compound [Cu(C12H9O2)2(C4H6N2)2], each copper cation are coordinated by two N atoms of two symmetry equivalent 2-methyl-1H-imidazole ligands and by two carboxyl O atoms of two symmetry related 1-naphthylacetate anions within a square planar coordination (Fig. 1). The Cu—N and Cu—O bond lengths are 1.9750 (18) and 1.9791 (16) Å, respectively. The consits of one Cu(II) cation that is located on a center of inversion as well of one neutral and one anionic ligand in general positions. The discrete complexes are linked into chains by N—H···O hydrogen bonding (Fig. 2 and Table 1).For related structures, see: Liu et al. (2007); Chen et al. (2004); Yang et al. (2008); Tang et al. (2006); Ji et al. (2011).
Data collection: APEX2 (Bruker 2007); cell
SAINT (Bruker 2007); data reduction: SAINT (Bruker 2007); 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(C12H9O2)2(C4H6N2)2] | F(000) = 1244 |
Mr = 598.14 | Dx = 1.397 Mg m−3 |
Monoclinic, C2/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -C 2yc | Cell parameters from 2712 reflections |
a = 28.430 (4) Å | θ = 2.8–22.8° |
b = 7.5544 (10) Å | µ = 0.81 mm−1 |
c = 13.9417 (19) Å | T = 298 K |
β = 108.216 (2)° | Block, green |
V = 2844.2 (7) Å3 | 0.12 × 0.10 × 0.10 mm |
Z = 4 |
Bruker APEXII CCD diffractometer | 2507 independent reflections |
Radiation source: fine-focus sealed tube | 2081 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.032 |
φ and ω scans | θmax = 25.0°, θmin = 2.8° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −33→33 |
Tmin = 0.866, Tmax = 0.903 | k = −8→8 |
10438 measured reflections | l = −16→16 |
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)] = 0.034 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.090 | H-atom parameters constrained |
S = 1.05 | w = 1/[σ2(Fo2) + (0.0424P)2 + 2.2367P] where P = (Fo2 + 2Fc2)/3 |
2507 reflections | (Δ/σ)max < 0.001 |
188 parameters | Δρmax = 0.23 e Å−3 |
0 restraints | Δρmin = −0.22 e Å−3 |
[Cu(C12H9O2)2(C4H6N2)2] | V = 2844.2 (7) Å3 |
Mr = 598.14 | Z = 4 |
Monoclinic, C2/c | Mo Kα radiation |
a = 28.430 (4) Å | µ = 0.81 mm−1 |
b = 7.5544 (10) Å | T = 298 K |
c = 13.9417 (19) Å | 0.12 × 0.10 × 0.10 mm |
β = 108.216 (2)° |
Bruker APEXII CCD diffractometer | 2507 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2081 reflections with I > 2σ(I) |
Tmin = 0.866, Tmax = 0.903 | Rint = 0.032 |
10438 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | 0 restraints |
wR(F2) = 0.090 | H-atom parameters constrained |
S = 1.05 | Δρmax = 0.23 e Å−3 |
2507 reflections | Δρmin = −0.22 e Å−3 |
188 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 | ||
C1 | 0.41432 (9) | 0.1140 (3) | 0.87770 (18) | 0.0393 (5) | |
C2 | 0.36810 (9) | 0.1271 (3) | 0.78610 (19) | 0.0444 (6) | |
H2A | 0.3421 | 0.1850 | 0.8059 | 0.053* | |
H2B | 0.3754 | 0.2004 | 0.7354 | 0.053* | |
C3 | 0.34946 (8) | −0.0505 (3) | 0.74014 (17) | 0.0387 (5) | |
C4 | 0.35305 (9) | −0.0972 (4) | 0.64815 (18) | 0.0488 (6) | |
H4 | 0.3677 | −0.0190 | 0.6144 | 0.059* | |
C5 | 0.33521 (10) | −0.2605 (4) | 0.6031 (2) | 0.0586 (7) | |
H5 | 0.3384 | −0.2895 | 0.5406 | 0.070* | |
C6 | 0.31340 (10) | −0.3760 (4) | 0.6506 (2) | 0.0553 (7) | |
H6 | 0.3011 | −0.4829 | 0.6198 | 0.066* | |
C7 | 0.30908 (8) | −0.3357 (3) | 0.74649 (18) | 0.0414 (6) | |
C8 | 0.32775 (8) | −0.1709 (3) | 0.79265 (16) | 0.0356 (5) | |
C9 | 0.32324 (9) | −0.1349 (3) | 0.88921 (18) | 0.0442 (6) | |
H9 | 0.3357 | −0.0293 | 0.9216 | 0.053* | |
C10 | 0.30110 (10) | −0.2521 (4) | 0.9353 (2) | 0.0561 (7) | |
H10 | 0.2985 | −0.2253 | 0.9985 | 0.067* | |
C11 | 0.28210 (10) | −0.4129 (4) | 0.8889 (2) | 0.0587 (7) | |
H11 | 0.2666 | −0.4911 | 0.9208 | 0.070* | |
C12 | 0.28645 (9) | −0.4541 (4) | 0.7972 (2) | 0.0521 (7) | |
H12 | 0.2743 | −0.5618 | 0.7673 | 0.062* | |
C13 | 0.54765 (9) | 0.2344 (3) | 0.88513 (18) | 0.0453 (6) | |
H13 | 0.5409 | 0.1555 | 0.8313 | 0.054* | |
C14 | 0.57019 (10) | 0.3915 (3) | 0.8895 (2) | 0.0509 (7) | |
H14 | 0.5817 | 0.4416 | 0.8401 | 0.061* | |
C15 | 0.55191 (8) | 0.3503 (3) | 1.02945 (18) | 0.0381 (5) | |
C16 | 0.54798 (10) | 0.3857 (3) | 1.13113 (19) | 0.0500 (6) | |
H16A | 0.5212 | 0.3179 | 1.1404 | 0.075* | |
H16B | 0.5419 | 0.5095 | 1.1374 | 0.075* | |
H16C | 0.5784 | 0.3527 | 1.1815 | 0.075* | |
N1 | 0.53589 (7) | 0.2080 (2) | 0.97253 (14) | 0.0378 (5) | |
N2 | 0.57289 (8) | 0.4629 (3) | 0.98082 (16) | 0.0453 (5) | |
H2 | 0.5859 | 0.5633 | 1.0036 | 0.054* | |
O1 | 0.44990 (6) | 0.0258 (2) | 0.86540 (12) | 0.0421 (4) | |
O2 | 0.41557 (7) | 0.1856 (2) | 0.95858 (13) | 0.0522 (5) | |
Cu1 | 0.5000 | 0.0000 | 1.0000 | 0.03683 (15) |
U11 | U22 | U33 | U12 | U13 | U23 | |
C1 | 0.0456 (14) | 0.0263 (11) | 0.0454 (14) | −0.0092 (10) | 0.0134 (11) | 0.0017 (10) |
C2 | 0.0460 (14) | 0.0365 (13) | 0.0504 (15) | 0.0049 (11) | 0.0146 (12) | 0.0092 (11) |
C3 | 0.0285 (12) | 0.0464 (14) | 0.0374 (13) | 0.0043 (10) | 0.0051 (10) | 0.0046 (10) |
C4 | 0.0409 (14) | 0.0658 (17) | 0.0397 (14) | −0.0029 (13) | 0.0125 (11) | 0.0072 (13) |
C5 | 0.0520 (16) | 0.082 (2) | 0.0439 (15) | −0.0064 (15) | 0.0177 (13) | −0.0145 (15) |
C6 | 0.0461 (15) | 0.0595 (17) | 0.0565 (17) | −0.0061 (13) | 0.0106 (13) | −0.0200 (14) |
C7 | 0.0299 (12) | 0.0470 (14) | 0.0442 (14) | −0.0005 (10) | 0.0072 (10) | −0.0022 (11) |
C8 | 0.0250 (11) | 0.0424 (13) | 0.0361 (12) | 0.0044 (9) | 0.0045 (9) | 0.0026 (10) |
C9 | 0.0411 (14) | 0.0503 (15) | 0.0392 (13) | −0.0011 (11) | 0.0098 (11) | −0.0009 (11) |
C10 | 0.0477 (15) | 0.080 (2) | 0.0413 (15) | −0.0057 (14) | 0.0151 (12) | 0.0059 (14) |
C11 | 0.0431 (15) | 0.0704 (19) | 0.0611 (18) | −0.0101 (14) | 0.0143 (13) | 0.0161 (16) |
C12 | 0.0367 (14) | 0.0507 (16) | 0.0617 (18) | −0.0076 (11) | 0.0052 (12) | 0.0022 (13) |
C13 | 0.0504 (15) | 0.0453 (14) | 0.0417 (14) | −0.0035 (12) | 0.0167 (12) | −0.0097 (11) |
C14 | 0.0587 (17) | 0.0489 (15) | 0.0517 (16) | −0.0046 (13) | 0.0266 (13) | −0.0030 (12) |
C15 | 0.0334 (12) | 0.0346 (12) | 0.0441 (13) | 0.0019 (10) | 0.0090 (10) | −0.0045 (10) |
C16 | 0.0597 (16) | 0.0451 (15) | 0.0454 (15) | 0.0053 (12) | 0.0169 (13) | −0.0084 (12) |
N1 | 0.0364 (11) | 0.0340 (10) | 0.0414 (11) | −0.0033 (8) | 0.0098 (9) | −0.0055 (9) |
N2 | 0.0486 (12) | 0.0337 (11) | 0.0555 (13) | −0.0086 (9) | 0.0190 (10) | −0.0074 (9) |
O1 | 0.0368 (9) | 0.0444 (10) | 0.0412 (9) | −0.0025 (7) | 0.0065 (7) | −0.0054 (7) |
O2 | 0.0678 (12) | 0.0392 (9) | 0.0518 (11) | −0.0075 (8) | 0.0219 (9) | −0.0115 (8) |
Cu1 | 0.0348 (2) | 0.0341 (2) | 0.0391 (2) | −0.00479 (17) | 0.00786 (17) | −0.00590 (17) |
C1—O2 | 1.241 (3) | C10—H10 | 0.9300 |
C1—O1 | 1.267 (3) | C11—C12 | 1.358 (4) |
C1—C2 | 1.523 (3) | C11—H11 | 0.9300 |
C2—C3 | 1.510 (3) | C12—H12 | 0.9300 |
C2—H2A | 0.9700 | C13—C14 | 1.341 (3) |
C2—H2B | 0.9700 | C13—N1 | 1.375 (3) |
C3—C4 | 1.364 (3) | C13—H13 | 0.9300 |
C3—C8 | 1.424 (3) | C14—N2 | 1.363 (3) |
C4—C5 | 1.405 (4) | C14—H14 | 0.9300 |
C4—H4 | 0.9300 | C15—N1 | 1.329 (3) |
C5—C6 | 1.358 (4) | C15—N2 | 1.339 (3) |
C5—H5 | 0.9300 | C15—C16 | 1.481 (3) |
C6—C7 | 1.413 (3) | C16—H16A | 0.9600 |
C6—H6 | 0.9300 | C16—H16B | 0.9600 |
C7—C12 | 1.413 (3) | C16—H16C | 0.9600 |
C7—C8 | 1.425 (3) | N1—Cu1 | 1.9750 (18) |
C8—C9 | 1.418 (3) | N2—H2 | 0.8600 |
C9—C10 | 1.358 (3) | O1—Cu1 | 1.9791 (16) |
C9—H9 | 0.9300 | Cu1—N1i | 1.9750 (18) |
C10—C11 | 1.402 (4) | Cu1—O1i | 1.9791 (16) |
O2—C1—O1 | 123.7 (2) | C12—C11—H11 | 120.1 |
O2—C1—C2 | 120.4 (2) | C10—C11—H11 | 120.1 |
O1—C1—C2 | 115.9 (2) | C11—C12—C7 | 121.0 (3) |
C3—C2—C1 | 113.22 (18) | C11—C12—H12 | 119.5 |
C3—C2—H2A | 108.9 | C7—C12—H12 | 119.5 |
C1—C2—H2A | 108.9 | C14—C13—N1 | 109.5 (2) |
C3—C2—H2B | 108.9 | C14—C13—H13 | 125.3 |
C1—C2—H2B | 108.9 | N1—C13—H13 | 125.2 |
H2A—C2—H2B | 107.7 | C13—C14—N2 | 106.2 (2) |
C4—C3—C8 | 119.3 (2) | C13—C14—H14 | 126.9 |
C4—C3—C2 | 120.6 (2) | N2—C14—H14 | 126.9 |
C8—C3—C2 | 120.1 (2) | N1—C15—N2 | 109.6 (2) |
C3—C4—C5 | 121.6 (2) | N1—C15—C16 | 127.1 (2) |
C3—C4—H4 | 119.2 | N2—C15—C16 | 123.3 (2) |
C5—C4—H4 | 119.2 | C15—C16—H16A | 109.5 |
C6—C5—C4 | 120.2 (2) | C15—C16—H16B | 109.5 |
C6—C5—H5 | 119.9 | H16A—C16—H16B | 109.5 |
C4—C5—H5 | 119.9 | C15—C16—H16C | 109.5 |
C5—C6—C7 | 120.8 (2) | H16A—C16—H16C | 109.5 |
C5—C6—H6 | 119.6 | H16B—C16—H16C | 109.5 |
C7—C6—H6 | 119.6 | C15—N1—C13 | 106.20 (19) |
C6—C7—C12 | 121.6 (2) | C15—N1—Cu1 | 128.97 (16) |
C6—C7—C8 | 119.0 (2) | C13—N1—Cu1 | 124.80 (15) |
C12—C7—C8 | 119.3 (2) | C15—N2—C14 | 108.5 (2) |
C9—C8—C3 | 123.2 (2) | C15—N2—H2 | 125.6 |
C9—C8—C7 | 117.7 (2) | C14—N2—H2 | 125.9 |
C3—C8—C7 | 119.1 (2) | C1—O1—Cu1 | 106.96 (15) |
C10—C9—C8 | 121.1 (2) | N1—Cu1—N1i | 180.00 (11) |
C10—C9—H9 | 119.4 | N1—Cu1—O1i | 89.99 (7) |
C8—C9—H9 | 119.4 | N1i—Cu1—O1i | 90.01 (7) |
C9—C10—C11 | 121.0 (3) | N1—Cu1—O1 | 90.01 (7) |
C9—C10—H10 | 119.5 | N1i—Cu1—O1 | 89.99 (7) |
C11—C10—H10 | 119.5 | O1i—Cu1—O1 | 180.000 (1) |
C12—C11—C10 | 119.8 (3) | ||
O2—C1—C2—C3 | −127.3 (2) | C10—C11—C12—C7 | −1.2 (4) |
O1—C1—C2—C3 | 52.1 (3) | C6—C7—C12—C11 | −179.3 (3) |
C1—C2—C3—C4 | −110.1 (3) | C8—C7—C12—C11 | 0.2 (4) |
C1—C2—C3—C8 | 70.1 (3) | N1—C13—C14—N2 | 0.5 (3) |
C8—C3—C4—C5 | 0.9 (4) | N2—C15—N1—C13 | 0.1 (3) |
C2—C3—C4—C5 | −178.9 (2) | C16—C15—N1—C13 | 179.9 (2) |
C3—C4—C5—C6 | 0.5 (4) | N2—C15—N1—Cu1 | −177.75 (15) |
C4—C5—C6—C7 | −1.2 (4) | C16—C15—N1—Cu1 | 2.1 (4) |
C5—C6—C7—C12 | 179.9 (3) | C14—C13—N1—C15 | −0.4 (3) |
C5—C6—C7—C8 | 0.4 (4) | C14—C13—N1—Cu1 | 177.56 (17) |
C4—C3—C8—C9 | 178.9 (2) | N1—C15—N2—C14 | 0.2 (3) |
C2—C3—C8—C9 | −1.3 (3) | C16—C15—N2—C14 | −179.6 (2) |
C4—C3—C8—C7 | −1.6 (3) | C13—C14—N2—C15 | −0.5 (3) |
C2—C3—C8—C7 | 178.2 (2) | O2—C1—O1—Cu1 | 7.9 (3) |
C6—C7—C8—C9 | −179.5 (2) | C2—C1—O1—Cu1 | −171.46 (15) |
C12—C7—C8—C9 | 1.0 (3) | C15—N1—Cu1—O1i | −50.3 (2) |
C6—C7—C8—C3 | 1.0 (3) | C13—N1—Cu1—O1i | 132.28 (19) |
C12—C7—C8—C3 | −178.5 (2) | C15—N1—Cu1—O1 | 129.7 (2) |
C3—C8—C9—C10 | 178.3 (2) | C13—N1—Cu1—O1 | −47.72 (19) |
C7—C8—C9—C10 | −1.2 (3) | C1—O1—Cu1—N1 | −95.44 (14) |
C8—C9—C10—C11 | 0.2 (4) | C1—O1—Cu1—N1i | 84.56 (14) |
C9—C10—C11—C12 | 1.0 (4) |
Symmetry code: (i) −x+1, −y, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O2ii | 0.86 | 1.97 | 2.775 (3) | 155 |
Symmetry code: (ii) −x+1, −y+1, −z+2. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C12H9O2)2(C4H6N2)2] |
Mr | 598.14 |
Crystal system, space group | Monoclinic, C2/c |
Temperature (K) | 298 |
a, b, c (Å) | 28.430 (4), 7.5544 (10), 13.9417 (19) |
β (°) | 108.216 (2) |
V (Å3) | 2844.2 (7) |
Z | 4 |
Radiation type | Mo Kα |
µ (mm−1) | 0.81 |
Crystal size (mm) | 0.12 × 0.10 × 0.10 |
Data collection | |
Diffractometer | Bruker APEXII CCD |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.866, 0.903 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 10438, 2507, 2081 |
Rint | 0.032 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.090, 1.05 |
No. of reflections | 2507 |
No. of parameters | 188 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.23, −0.22 |
Computer programs: APEX2 (Bruker 2007), SAINT (Bruker 2007), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H2···O2i | 0.86 | 1.973 | 2.775 (3) | 154.7 |
Symmetry code: (i) −x+1, −y+1, −z+2. |
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The crystal structure of the title compound was determined as part of an ongoing study on the structural properties of copper complexes containing imidazole ligands. In this study 1-naphthylacetate was used as ligand, for which only a few metal complexes were reported (Liu et al.,2007; Chen et al., 2004; Yang et al., 2008; Tang et al.,2006 ; Ji et al.,2011).
In the crystal structure of the title compound [Cu(C12H9O2)2(C4H6N2)2], each copper cation are coordinated by two N atoms of two symmetry equivalent 2-methyl-1H-imidazole ligands and by two carboxyl O atoms of two symmetry related 1-naphthylacetate anions within a square planar coordination (Fig. 1). The Cu—N and Cu—O bond lengths are 1.9750 (18) and 1.9791 (16) Å, respectively. The asymmetric unit consits of one Cu(II) cation that is located on a center of inversion as well of one neutral and one anionic ligand in general positions. The discrete complexes are linked into chains by N—H···O hydrogen bonding (Fig. 2 and Table 1).