metal-organic compounds
Bis(μ-2,2′-{[4-(carboxymethoxy)phenyl]azanediyl}diacetato)bis[(1,10-phenanthroline)copper(II)]
aCollege of Life Science, Fujian Agriculture and Forestry University, Fuzhou, Fujian 350002, People's Republic of China, bDepartment of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, People's Republic of China, and cFuqing Entry–exit Inspection and Quarantine Bureau, Fuqing, Fujian 350300, People's Republic of China
*Correspondence e-mail: zy13054518939@yahoo.com.cn
The 2(C12H11NO7)2(C12H8N2)2], consists of a complex molecule, which lies about a crystallographic inversion centre with one half-molecule in the The CuII cation is bonded to three N atoms and three O atoms, in a Jahn–Teller-distorted octahedral geometry. The basal plane is defined by the two N atoms from the 1,10-phenathroline and two deprotonated O atoms of the polycarboxylate ligand. The axial positions are occupied by the azane N atom and a bridging carboxylate O atom from the second polycarboxylate ligand. The complex molecules are linked through O—H⋯O hydrogen bonds into extended chains running parallel to [010].
of the binuclear title compound, [CuRelated literature
For general background to the applications of polycarboxylate ligands, see: Ghermani et al. (1994); Ruiz-Perez et al. (2000); Ye et al. (2005); Kido et al. (2003). For the features of flexible multidentate aromatic polycarboxylate ligands, see: Wang et al. (2009); Pan et al. (2008); Dong et al. (2006).
Experimental
Crystal data
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Refinement
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Data collection: CrystalClear (Rigaku, 2002); 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: SHELXL97.
Supporting information
https://doi.org/10.1107/S1600536810048488/sj5063sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810048488/sj5063Isup2.hkl
The polycarboxylate ligand (0.082 g, 0.3 mmol), Cu(CH3COO)2.2H2O (0.044 g, 0.2 mmol) and 1,10-phenathroline (0.055 g, 0.3 mmol) were dissolved in a mixed solvent of ethanol and water (8 ml, 5:3 v/v) and stirred for 4 h at room temperature. The mixture was filtered and allowed to evaporate in air at room temperature. Block-like blue crystals separated from the filtrate after 8 days.
The H2 atom bound to O2 was placed in an idealized position in the riding-model approximation with O—H = 0.82 Å, All other H atoms were placed in calculated positions with a C—H bond distance of 0.93 Å and Uiso(H) = 1.2Ueq of the parent atoms.
Carboxylate-metal coordination compounds have received considerable attention due to their potential applications in catalysis and pharmaceutical chemistry (Ghermani et al., 1994; Ruiz-Perez et al., 2000), molecular recognition and magnetic materials (Ye et al., 2005); Kido, et al., 2003). In recent years, several studies have focused on flexible multidentate aromatic polycarboxylate ligands, because of their remarkable features. These ligands contain carboxylate groups, which can provide a variety of coordination modes (Wang et al., 2009). They also offer the opportunity to form hydrogen bonds leading to supramolecular structures (Pan et al., 2008). Furthermore, such ligands can be used to construct unprecedented topological frameworks (Dong et al., 2006). Here, we present the structure of the title compound (I), a copper complex with 2,2'-(4-(carboxymethoxy)phenylazanediyl)diacetate, a flexible multidentate aromatic polycarboxylate ligand.
As shown in Fig. 1, the binuclear complex contains two CuII cations with very distorted octahedral geometries. The basal plane of each coordination site is defined by the N2 and N3 atoms from the 1,10-phenathroline ligand and the deprotanated O5 and O7 atoms from a polycarboxylate ligand. The axial positions are occupied by the azane N1 atom and a bridging O7A atom from the second polycarboxylate ligand. The angle O7A—Cu1—N1 and the axial bond lengths are respectively 149.54 (10)°; Cu1—O7A, 2.293 (3)Å; Cu1—N1, 2.460 (3)Å which demonstrate a very distorted octahedral coordination geometry due to the Jahn-Teller effect. The packing is stabilized through intermolecular hydrogen-bonding between the uncoordinated carboxyl O—H group and a neighboring carbonyl oxygen atom. This results in a 1-dimensional hydrogen-bonded chain parallel to the [010] direction (Fig. 2 and Table 1).
For general background to the applications of polycarboxylate ligands, see: Ghermani et al. (1994); Ruiz-Perez et al. (2000); Ye et al. (2005); Kido et al. (2003). For the features of flexible multidentate aromatic polycarboxylate ligands, see: Wang et al. (2009); Pan et al. (2008); Dong et al. (2006).
Data collection: CrystalClear (Rigaku, 2002); cell
CrystalClear (Rigaku, 2002; data reduction: CrystalClear (Rigaku, 2002; 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: SHELXL97 (Sheldrick, 2008).Fig. 1. The structure of the title compound with 30% probability displacement ellipsoids. The weak axial Cu—N bonds are shown as dashed lines. H atoms have been omitted for clarity. [Atoms labelled with the suffix A are related to other atoms by the symmetry code: [-x,-y,-z] | |
Fig. 2. A view of the hydrogen-bonded 1-dimensional chains running parallel to [010]. The hydrogen bonds are shown as dashed lines. |
[Cu2(C12H11NO7)2(C12H8N2)2] | F(000) = 1076 |
Mr = 1049.92 | Dx = 1.648 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 25 reflections |
a = 8.7410 (17) Å | θ = 12–18° |
b = 10.886 (2) Å | µ = 1.09 mm−1 |
c = 22.239 (4) Å | T = 293 K |
β = 90.85 (3)° | Block, blue |
V = 2115.8 (7) Å3 | 0.26 × 0.18 × 0.12 mm |
Z = 2 |
Rigaku Mercury CCD area-detector diffractometer | 3604 independent reflections |
Radiation source: fine-focus sealed tube | 3408 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.052 |
ω scans | θmax = 24.7°, θmin = 3.1° |
Absorption correction: multi-scan (RAPID-AUTO; Rigaku, 1998) | h = −10→10 |
Tmin = 0.85, Tmax = 1.00 | k = −12→12 |
14139 measured reflections | l = −26→26 |
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)] = 0.059 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.103 | H-atom parameters constrained |
S = 1.25 | w = 1/[σ2(Fo2) + (0.0128P)2 + 3.5126P] where P = (Fo2 + 2Fc2)/3 |
3604 reflections | (Δ/σ)max = 0.001 |
317 parameters | Δρmax = 0.27 e Å−3 |
0 restraints | Δρmin = −0.35 e Å−3 |
[Cu2(C12H11NO7)2(C12H8N2)2] | V = 2115.8 (7) Å3 |
Mr = 1049.92 | Z = 2 |
Monoclinic, P21/c | Mo Kα radiation |
a = 8.7410 (17) Å | µ = 1.09 mm−1 |
b = 10.886 (2) Å | T = 293 K |
c = 22.239 (4) Å | 0.26 × 0.18 × 0.12 mm |
β = 90.85 (3)° |
Rigaku Mercury CCD area-detector diffractometer | 3604 independent reflections |
Absorption correction: multi-scan (RAPID-AUTO; Rigaku, 1998) | 3408 reflections with I > 2σ(I) |
Tmin = 0.85, Tmax = 1.00 | Rint = 0.052 |
14139 measured reflections |
R[F2 > 2σ(F2)] = 0.059 | 0 restraints |
wR(F2) = 0.103 | H-atom parameters constrained |
S = 1.25 | Δρmax = 0.27 e Å−3 |
3604 reflections | Δρmin = −0.35 e Å−3 |
317 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 | ||
Cu1 | 0.05701 (5) | 0.10839 (4) | 0.04897 (2) | 0.03031 (15) | |
O5 | −0.0341 (3) | 0.0219 (2) | 0.11910 (12) | 0.0356 (7) | |
O7 | 0.1363 (3) | −0.0478 (2) | 0.01526 (12) | 0.0326 (6) | |
N1 | 0.2819 (4) | 0.0561 (3) | 0.11173 (14) | 0.0304 (7) | |
N2 | 0.0092 (4) | 0.2758 (3) | 0.08106 (15) | 0.0319 (8) | |
N3 | 0.1739 (4) | 0.2109 (3) | −0.01248 (15) | 0.0330 (8) | |
O6 | 0.3412 (3) | −0.1600 (3) | −0.00516 (14) | 0.0459 (8) | |
O2 | 0.1572 (4) | 0.7030 (3) | 0.24279 (14) | 0.0528 (9) | |
H2 | 0.1176 | 0.7503 | 0.2184 | 0.063* | |
O3 | 0.4623 (4) | 0.4841 (3) | 0.23479 (15) | 0.0550 (9) | |
O1 | 0.3190 (4) | 0.6653 (3) | 0.16736 (15) | 0.0605 (9) | |
O4 | −0.0057 (3) | −0.1359 (3) | 0.18195 (14) | 0.0500 (8) | |
C1 | 0.2762 (5) | 0.6474 (4) | 0.2177 (2) | 0.0434 (11) | |
C2 | 0.3508 (6) | 0.5602 (4) | 0.2620 (2) | 0.0546 (13) | |
H2A | 0.3991 | 0.6073 | 0.2941 | 0.066* | |
H2B | 0.2728 | 0.5089 | 0.2798 | 0.066* | |
C3 | 0.4095 (5) | 0.3800 (4) | 0.2047 (2) | 0.0401 (10) | |
C4 | 0.2869 (5) | 0.3104 (4) | 0.2226 (2) | 0.0482 (12) | |
H4 | 0.2304 | 0.3347 | 0.2557 | 0.058* | |
C5 | 0.2476 (5) | 0.2047 (4) | 0.19176 (19) | 0.0432 (11) | |
H5 | 0.1638 | 0.1593 | 0.2043 | 0.052* | |
C6 | 0.3299 (4) | 0.1642 (4) | 0.14239 (17) | 0.0291 (9) | |
C7 | 0.4531 (4) | 0.2351 (4) | 0.12463 (18) | 0.0335 (9) | |
H7 | 0.5100 | 0.2110 | 0.0917 | 0.040* | |
C8 | 0.4928 (5) | 0.3423 (4) | 0.15567 (19) | 0.0377 (10) | |
H8 | 0.5759 | 0.3888 | 0.1432 | 0.045* | |
C9 | 0.2205 (4) | −0.0419 (4) | 0.14958 (18) | 0.0349 (10) | |
H9A | 0.2570 | −0.0290 | 0.1905 | 0.042* | |
H9B | 0.2618 | −0.1197 | 0.1360 | 0.042* | |
C10 | 0.0478 (5) | −0.0518 (4) | 0.15017 (18) | 0.0342 (10) | |
C11 | 0.3746 (4) | 0.0071 (4) | 0.06312 (18) | 0.0325 (9) | |
H11A | 0.4592 | −0.0398 | 0.0801 | 0.039* | |
H11B | 0.4168 | 0.0745 | 0.0402 | 0.039* | |
C12 | 0.2791 (5) | −0.0758 (4) | 0.02112 (18) | 0.0327 (9) | |
C13 | 0.2498 (4) | 0.1765 (4) | −0.06094 (19) | 0.0378 (10) | |
H13 | 0.2383 | 0.0963 | −0.0746 | 0.045* | |
C14 | 0.3463 (5) | 0.2557 (4) | −0.0924 (2) | 0.0452 (11) | |
H14 | 0.3974 | 0.2285 | −0.1262 | 0.054* | |
C15 | 0.3644 (5) | 0.3735 (4) | −0.0725 (2) | 0.0466 (12) | |
H15 | 0.4320 | 0.4259 | −0.0918 | 0.056* | |
C16 | 0.2812 (5) | 0.4161 (4) | −0.02308 (19) | 0.0381 (10) | |
C17 | 0.1868 (4) | 0.3301 (4) | 0.00554 (18) | 0.0317 (9) | |
C18 | 0.0961 (4) | 0.3654 (4) | 0.05541 (18) | 0.0336 (10) | |
C19 | 0.0966 (5) | 0.4885 (4) | 0.0753 (2) | 0.0378 (10) | |
C20 | 0.1934 (5) | 0.5738 (4) | 0.0444 (2) | 0.0487 (12) | |
H20 | 0.1951 | 0.6554 | 0.0568 | 0.058* | |
C21 | 0.2807 (5) | 0.5397 (4) | −0.0012 (2) | 0.0465 (12) | |
H21 | 0.3430 | 0.5978 | −0.0193 | 0.056* | |
C22 | 0.0007 (5) | 0.5157 (4) | 0.1236 (2) | 0.0452 (11) | |
H22 | −0.0044 | 0.5955 | 0.1383 | 0.054* | |
C23 | −0.0846 (5) | 0.4261 (4) | 0.1489 (2) | 0.0475 (12) | |
H23 | −0.1471 | 0.4445 | 0.1812 | 0.057* | |
C24 | −0.0788 (5) | 0.3064 (4) | 0.12670 (19) | 0.0407 (10) | |
H24 | −0.1386 | 0.2462 | 0.1445 | 0.049* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.0304 (3) | 0.0260 (3) | 0.0346 (3) | −0.0016 (2) | 0.0050 (2) | 0.0013 (2) |
O5 | 0.0316 (15) | 0.0351 (16) | 0.0403 (17) | 0.0001 (13) | 0.0064 (13) | 0.0070 (13) |
O7 | 0.0301 (16) | 0.0294 (15) | 0.0383 (16) | −0.0020 (12) | 0.0024 (12) | −0.0052 (12) |
N1 | 0.0304 (18) | 0.0289 (18) | 0.0320 (18) | −0.0030 (15) | 0.0074 (14) | 0.0003 (15) |
N2 | 0.0305 (18) | 0.0294 (18) | 0.0358 (19) | 0.0004 (15) | −0.0009 (15) | 0.0044 (15) |
N3 | 0.0286 (18) | 0.0318 (19) | 0.039 (2) | −0.0017 (15) | 0.0023 (15) | 0.0029 (15) |
O6 | 0.0423 (18) | 0.0338 (17) | 0.062 (2) | −0.0010 (14) | 0.0179 (15) | −0.0130 (15) |
O2 | 0.064 (2) | 0.053 (2) | 0.0415 (19) | 0.0204 (17) | 0.0086 (16) | 0.0072 (16) |
O3 | 0.048 (2) | 0.0419 (18) | 0.075 (2) | 0.0052 (16) | −0.0136 (17) | −0.0256 (17) |
O1 | 0.072 (2) | 0.060 (2) | 0.050 (2) | 0.0073 (19) | 0.0139 (18) | 0.0041 (18) |
O4 | 0.0411 (18) | 0.0484 (19) | 0.061 (2) | −0.0050 (15) | 0.0101 (15) | 0.0244 (16) |
C1 | 0.053 (3) | 0.033 (2) | 0.044 (3) | −0.003 (2) | −0.002 (2) | −0.007 (2) |
C2 | 0.064 (3) | 0.044 (3) | 0.056 (3) | 0.013 (2) | −0.016 (3) | −0.018 (2) |
C3 | 0.038 (2) | 0.034 (2) | 0.048 (3) | 0.002 (2) | −0.011 (2) | −0.008 (2) |
C4 | 0.037 (2) | 0.059 (3) | 0.049 (3) | −0.001 (2) | 0.004 (2) | −0.022 (2) |
C5 | 0.034 (2) | 0.053 (3) | 0.044 (3) | −0.013 (2) | 0.0040 (19) | −0.011 (2) |
C6 | 0.024 (2) | 0.031 (2) | 0.032 (2) | −0.0003 (17) | −0.0007 (16) | 0.0014 (18) |
C7 | 0.032 (2) | 0.032 (2) | 0.037 (2) | 0.0009 (18) | 0.0025 (18) | 0.0010 (18) |
C8 | 0.039 (2) | 0.029 (2) | 0.045 (3) | −0.0052 (19) | −0.003 (2) | 0.004 (2) |
C9 | 0.033 (2) | 0.037 (2) | 0.035 (2) | −0.0031 (18) | 0.0012 (18) | 0.0068 (19) |
C10 | 0.035 (2) | 0.035 (2) | 0.033 (2) | −0.005 (2) | 0.0054 (18) | 0.0002 (19) |
C11 | 0.025 (2) | 0.031 (2) | 0.042 (2) | 0.0012 (17) | 0.0034 (17) | 0.0002 (18) |
C12 | 0.033 (2) | 0.025 (2) | 0.040 (2) | −0.0044 (18) | 0.0132 (18) | 0.0025 (18) |
C13 | 0.033 (2) | 0.039 (2) | 0.042 (2) | −0.0031 (19) | 0.0045 (19) | 0.004 (2) |
C14 | 0.041 (3) | 0.050 (3) | 0.045 (3) | 0.003 (2) | 0.008 (2) | 0.011 (2) |
C15 | 0.033 (2) | 0.050 (3) | 0.056 (3) | −0.006 (2) | 0.005 (2) | 0.016 (2) |
C16 | 0.035 (2) | 0.032 (2) | 0.047 (3) | −0.0062 (19) | −0.009 (2) | 0.014 (2) |
C17 | 0.027 (2) | 0.030 (2) | 0.038 (2) | −0.0023 (17) | −0.0051 (17) | 0.0051 (19) |
C18 | 0.031 (2) | 0.032 (2) | 0.037 (2) | −0.0028 (18) | −0.0089 (18) | 0.0046 (18) |
C19 | 0.036 (2) | 0.031 (2) | 0.046 (3) | −0.0014 (19) | −0.0115 (19) | 0.001 (2) |
C20 | 0.057 (3) | 0.030 (2) | 0.059 (3) | −0.010 (2) | −0.017 (3) | 0.002 (2) |
C21 | 0.044 (3) | 0.038 (3) | 0.058 (3) | −0.013 (2) | −0.006 (2) | 0.009 (2) |
C22 | 0.045 (3) | 0.035 (3) | 0.056 (3) | 0.002 (2) | −0.011 (2) | −0.009 (2) |
C23 | 0.050 (3) | 0.049 (3) | 0.044 (3) | 0.010 (2) | −0.002 (2) | −0.009 (2) |
C24 | 0.038 (2) | 0.042 (3) | 0.042 (3) | 0.002 (2) | 0.003 (2) | 0.002 (2) |
Cu1—O7 | 1.987 (3) | C5—H5 | 0.9300 |
Cu1—O5 | 1.997 (3) | C6—C7 | 1.387 (5) |
Cu1—N2 | 2.003 (3) | C7—C8 | 1.397 (6) |
Cu1—N3 | 2.049 (3) | C7—H7 | 0.9300 |
Cu1—O7i | 2.293 (3) | C8—H8 | 0.9300 |
Cu1—N1 | 2.460 (3) | C9—C10 | 1.514 (5) |
O5—C10 | 1.272 (5) | C9—H9A | 0.9700 |
O7—C12 | 1.290 (5) | C9—H9B | 0.9700 |
O7—Cu1i | 2.293 (3) | C11—C12 | 1.536 (5) |
N1—C6 | 1.420 (5) | C11—H11A | 0.9700 |
N1—C11 | 1.462 (5) | C11—H11B | 0.9700 |
N1—C9 | 1.465 (5) | C13—C14 | 1.401 (6) |
N2—C24 | 1.325 (5) | C13—H13 | 0.9300 |
N2—C18 | 1.366 (5) | C14—C15 | 1.364 (6) |
N3—C13 | 1.327 (5) | C14—H14 | 0.9300 |
N3—C17 | 1.363 (5) | C15—C16 | 1.406 (6) |
O6—C12 | 1.219 (4) | C15—H15 | 0.9300 |
O2—C1 | 1.333 (5) | C16—C17 | 1.406 (5) |
O2—H2 | 0.8200 | C16—C21 | 1.431 (6) |
O3—C3 | 1.392 (5) | C17—C18 | 1.426 (5) |
O3—C2 | 1.422 (5) | C18—C19 | 1.411 (6) |
O1—C1 | 1.201 (5) | C19—C22 | 1.405 (6) |
O4—C10 | 1.252 (5) | C19—C20 | 1.437 (6) |
C1—C2 | 1.510 (6) | C20—C21 | 1.331 (6) |
C2—H2A | 0.9700 | C20—H20 | 0.9300 |
C2—H2B | 0.9700 | C21—H21 | 0.9300 |
C3—C4 | 1.376 (6) | C22—C23 | 1.354 (6) |
C3—C8 | 1.382 (6) | C22—H22 | 0.9300 |
C4—C5 | 1.381 (6) | C23—C24 | 1.395 (6) |
C4—H4 | 0.9300 | C23—H23 | 0.9300 |
C5—C6 | 1.393 (5) | C24—H24 | 0.9300 |
O7—Cu1—O5 | 92.08 (11) | C3—C8—C7 | 120.5 (4) |
O7—Cu1—N2 | 171.29 (12) | C3—C8—H8 | 119.8 |
O5—Cu1—N2 | 93.61 (12) | C7—C8—H8 | 119.8 |
O7—Cu1—N3 | 91.96 (12) | N1—C9—C10 | 115.5 (3) |
O5—Cu1—N3 | 170.40 (12) | N1—C9—H9A | 108.4 |
N2—Cu1—N3 | 81.44 (13) | C10—C9—H9A | 108.4 |
O7—Cu1—O7i | 77.11 (11) | N1—C9—H9B | 108.4 |
O5—Cu1—O7i | 93.01 (10) | C10—C9—H9B | 108.4 |
N2—Cu1—O7i | 109.13 (11) | H9A—C9—H9B | 107.5 |
N3—Cu1—O7i | 96.38 (11) | O4—C10—O5 | 123.8 (4) |
O7—Cu1—N1 | 74.69 (11) | O4—C10—C9 | 116.0 (4) |
O5—Cu1—N1 | 76.84 (11) | O5—C10—C9 | 120.2 (3) |
N2—Cu1—N1 | 100.21 (12) | N1—C11—C12 | 111.2 (3) |
N3—Cu1—N1 | 95.87 (12) | N1—C11—H11A | 109.4 |
O7i—Cu1—N1 | 149.54 (10) | C12—C11—H11A | 109.4 |
C10—O5—Cu1 | 119.6 (2) | N1—C11—H11B | 109.4 |
C12—O7—Cu1 | 120.4 (2) | C12—C11—H11B | 109.4 |
C12—O7—Cu1i | 134.3 (2) | H11A—C11—H11B | 108.0 |
Cu1—O7—Cu1i | 102.89 (11) | O6—C12—O7 | 124.5 (4) |
C6—N1—C11 | 119.6 (3) | O6—C12—C11 | 119.4 (4) |
C6—N1—C9 | 115.8 (3) | O7—C12—C11 | 116.1 (3) |
C11—N1—C9 | 111.7 (3) | N3—C13—C14 | 122.9 (4) |
C6—N1—Cu1 | 108.0 (2) | N3—C13—H13 | 118.5 |
C11—N1—Cu1 | 96.4 (2) | C14—C13—H13 | 118.5 |
C9—N1—Cu1 | 101.4 (2) | C15—C14—C13 | 119.0 (4) |
C24—N2—C18 | 118.2 (4) | C15—C14—H14 | 120.5 |
C24—N2—Cu1 | 128.9 (3) | C13—C14—H14 | 120.5 |
C18—N2—Cu1 | 112.4 (3) | C14—C15—C16 | 120.3 (4) |
C13—N3—C17 | 117.8 (3) | C14—C15—H15 | 119.9 |
C13—N3—Cu1 | 130.4 (3) | C16—C15—H15 | 119.9 |
C17—N3—Cu1 | 111.3 (3) | C17—C16—C15 | 116.6 (4) |
C1—O2—H2 | 109.5 | C17—C16—C21 | 117.8 (4) |
C3—O3—C2 | 117.1 (4) | C15—C16—C21 | 125.5 (4) |
O1—C1—O2 | 124.9 (4) | N3—C17—C16 | 123.2 (4) |
O1—C1—C2 | 125.0 (4) | N3—C17—C18 | 116.1 (3) |
O2—C1—C2 | 110.1 (4) | C16—C17—C18 | 120.7 (4) |
O3—C2—C1 | 112.3 (4) | N2—C18—C19 | 123.1 (4) |
O3—C2—H2A | 109.1 | N2—C18—C17 | 116.9 (4) |
C1—C2—H2A | 109.1 | C19—C18—C17 | 120.0 (4) |
O3—C2—H2B | 109.1 | C22—C19—C18 | 116.2 (4) |
C1—C2—H2B | 109.1 | C22—C19—C20 | 126.3 (4) |
H2A—C2—H2B | 107.9 | C18—C19—C20 | 117.6 (4) |
C4—C3—C8 | 119.2 (4) | C21—C20—C19 | 122.1 (4) |
C4—C3—O3 | 124.2 (4) | C21—C20—H20 | 118.9 |
C8—C3—O3 | 116.5 (4) | C19—C20—H20 | 118.9 |
C3—C4—C5 | 120.2 (4) | C20—C21—C16 | 121.7 (4) |
C3—C4—H4 | 119.9 | C20—C21—H21 | 119.1 |
C5—C4—H4 | 119.9 | C16—C21—H21 | 119.1 |
C4—C5—C6 | 121.9 (4) | C23—C22—C19 | 120.3 (4) |
C4—C5—H5 | 119.1 | C23—C22—H22 | 119.8 |
C6—C5—H5 | 119.1 | C19—C22—H22 | 119.8 |
C7—C6—C5 | 117.4 (4) | C22—C23—C24 | 120.1 (4) |
C7—C6—N1 | 123.3 (3) | C22—C23—H23 | 119.9 |
C5—C6—N1 | 119.2 (3) | C24—C23—H23 | 119.9 |
C6—C7—C8 | 120.8 (4) | N2—C24—C23 | 122.1 (4) |
C6—C7—H7 | 119.6 | N2—C24—H24 | 119.0 |
C8—C7—H7 | 119.6 | C23—C24—H24 | 119.0 |
Symmetry code: (i) −x, −y, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2···O4ii | 0.82 | 1.82 | 2.622 (4) | 164 |
Symmetry code: (ii) x, y+1, z. |
Experimental details
Crystal data | |
Chemical formula | [Cu2(C12H11NO7)2(C12H8N2)2] |
Mr | 1049.92 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 293 |
a, b, c (Å) | 8.7410 (17), 10.886 (2), 22.239 (4) |
β (°) | 90.85 (3) |
V (Å3) | 2115.8 (7) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.09 |
Crystal size (mm) | 0.26 × 0.18 × 0.12 |
Data collection | |
Diffractometer | Rigaku Mercury CCD area-detector |
Absorption correction | Multi-scan (RAPID-AUTO; Rigaku, 1998) |
Tmin, Tmax | 0.85, 1.00 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 14139, 3604, 3408 |
Rint | 0.052 |
(sin θ/λ)max (Å−1) | 0.588 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.059, 0.103, 1.25 |
No. of reflections | 3604 |
No. of parameters | 317 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.27, −0.35 |
Computer programs: CrystalClear (Rigaku, 2002), CrystalClear (Rigaku, 2002, SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Cu1—O7 | 1.987 (3) | Cu1—N3 | 2.049 (3) |
Cu1—O5 | 1.997 (3) | Cu1—O7i | 2.293 (3) |
Cu1—N2 | 2.003 (3) | Cu1—N1 | 2.460 (3) |
O7—Cu1—O5 | 92.08 (11) | N2—Cu1—O7i | 109.13 (11) |
O7—Cu1—N2 | 171.29 (12) | N3—Cu1—O7i | 96.38 (11) |
O5—Cu1—N2 | 93.61 (12) | O7—Cu1—N1 | 74.69 (11) |
O7—Cu1—N3 | 91.96 (12) | O5—Cu1—N1 | 76.84 (11) |
O5—Cu1—N3 | 170.40 (12) | N2—Cu1—N1 | 100.21 (12) |
N2—Cu1—N3 | 81.44 (13) | N3—Cu1—N1 | 95.87 (12) |
O7—Cu1—O7i | 77.11 (11) | O7i—Cu1—N1 | 149.54 (10) |
O5—Cu1—O7i | 93.01 (10) |
Symmetry code: (i) −x, −y, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O2—H2···O4ii | 0.82 | 1.82 | 2.622 (4) | 163.9 |
Symmetry code: (ii) x, y+1, z. |
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.
Carboxylate-metal coordination compounds have received considerable attention due to their potential applications in catalysis and pharmaceutical chemistry (Ghermani et al., 1994; Ruiz-Perez et al., 2000), molecular recognition and magnetic materials (Ye et al., 2005); Kido, et al., 2003). In recent years, several studies have focused on flexible multidentate aromatic polycarboxylate ligands, because of their remarkable features. These ligands contain carboxylate groups, which can provide a variety of coordination modes (Wang et al., 2009). They also offer the opportunity to form hydrogen bonds leading to supramolecular structures (Pan et al., 2008). Furthermore, such ligands can be used to construct unprecedented topological frameworks (Dong et al., 2006). Here, we present the structure of the title compound (I), a copper complex with 2,2'-(4-(carboxymethoxy)phenylazanediyl)diacetate, a flexible multidentate aromatic polycarboxylate ligand.
As shown in Fig. 1, the binuclear complex contains two CuII cations with very distorted octahedral geometries. The basal plane of each coordination site is defined by the N2 and N3 atoms from the 1,10-phenathroline ligand and the deprotanated O5 and O7 atoms from a polycarboxylate ligand. The axial positions are occupied by the azane N1 atom and a bridging O7A atom from the second polycarboxylate ligand. The angle O7A—Cu1—N1 and the axial bond lengths are respectively 149.54 (10)°; Cu1—O7A, 2.293 (3)Å; Cu1—N1, 2.460 (3)Å which demonstrate a very distorted octahedral coordination geometry due to the Jahn-Teller effect. The packing is stabilized through intermolecular hydrogen-bonding between the uncoordinated carboxyl O—H group and a neighboring carbonyl oxygen atom. This results in a 1-dimensional hydrogen-bonded chain parallel to the [010] direction (Fig. 2 and Table 1).