metal-organic compounds
[6-(3,5-Dimethyl-1H-pyrazol-1-yl)picolinato](pyridine-2,6-dicarboxylato)copper(II) dihydrate
aCollege of Chemistry and Ecological Engineering, Guangxi University for Nationalities, Nanning 530006, People's Republic of China, and bCollege of Chemistry and Chemical Engineering, Guangxi University, Nanning 530004, People's Republic of China
*Correspondence e-mail: yxhphd@163.com
In the title complex, [Cu(C7H4NO4)(C11H10N3O2)]·2H2O, the CuII atom is in a distorted octahedral geometry. The equatorial plane is formed by two N atoms and one O atom from 6-(3,5-dimethyl-1H-pyrazol-1-yl)picolinate and by one N atom from pyridine-2,6-dicarboxylate (pdc). Two pdc O atoms occupy the axial positions. Water molecules are hydrogen bonded to the complex molecules, forming a two-dimensional sheet structure.
Related literature
For the isostructural Ni derivative of the title compound, see: Feng et al. (2008). For other related literature, see: Yin et al. (2007); Zhao et al. (2007).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Siemens, 1996); cell SAINT (Siemens, 1996); 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
10.1107/S1600536808013731/zl2096sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808013731/zl2096Isup2.hkl
3-Chloro-(6-(3,5-dimethyl-1H-pyrazol-1-yl))picolinic acid, pyridine-2,6-dicarboxylic acid and CuCl2.6H2O were available commercially and were used without further purification. Equimolar amounts of 3-chloro-6-(3,5-dimethyl-1H-pyrazol-1-yl) picolinic acid (0.5 mmol, 125 mg) and pyridine-2,6-dicarboxylic acid (0.5 mmol, 83 mg) were dissolved in anhydrous alcohol (15 ml). The mixture was stirred to give a clear solution, to this solution was added CuCl2.6H2O (0.5 mmol, 113 mg) in anhydrous alcohol (10 ml). After keeping the resulting solution in air to evaporate about half of the solvents, blue prisms of the title compound were formed. The crystals were isolated, washed with alcohol three times and dried in a vacuum desiccator using silica gel (Yield 75%). Elemental analysis: found: C, 44.85; H, 3.78; N, 11.65%. calc. for C18H18CuN4O8: C, 44.86; H, 3.76; N, 11.63%.
H atoms on C atoms were positioned geometrically and refined using a riding model with C–H = 0.93–0.96 Å and Uiso(H) = 1.2–1.5Ueq(C). The water H atoms were located in difference density Fourier maps and refined using a riding model with O–H = 0.82 Å and Uiso(H) = 1.5Ueq(O).
Data collection: SMART (Siemens, 1996); cell
SMART (Siemens, 1996); data reduction: SAINT (Siemens, 1996); 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(C7H4NO4)(C11H10N3O2)]·2H2O | Z = 2 |
Mr = 481.90 | F(000) = 494 |
Triclinic, P1 | Dx = 1.653 Mg m−3 |
a = 9.004 (1) Å | Mo Kα radiation, λ = 0.71073 Å |
b = 9.036 (1) Å | Cell parameters from 3268 reflections |
c = 12.6760 (15) Å | θ = 2.3–27.8° |
α = 103.932 (3)° | µ = 1.19 mm−1 |
β = 90.289 (2)° | T = 298 K |
γ = 104.177 (3)° | Block, blue |
V = 968.25 (19) Å3 | 0.39 × 0.35 × 0.32 mm |
Bruker SMART CCD area-detector diffractometer | 3361 independent reflections |
Radiation source: fine-focus sealed tube | 2844 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.014 |
ϕ and ω scans | θmax = 25.0°, θmin = 1.7° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −10→6 |
Tmin = 0.655, Tmax = 0.684 | k = −10→10 |
5068 measured reflections | l = −14→15 |
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) = 0.113 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0647P)2 + 0.7713P] where P = (Fo2 + 2Fc2)/3 |
3361 reflections | (Δ/σ)max < 0.001 |
280 parameters | Δρmax = 0.39 e Å−3 |
0 restraints | Δρmin = −0.30 e Å−3 |
[Cu(C7H4NO4)(C11H10N3O2)]·2H2O | γ = 104.177 (3)° |
Mr = 481.90 | V = 968.25 (19) Å3 |
Triclinic, P1 | Z = 2 |
a = 9.004 (1) Å | Mo Kα radiation |
b = 9.036 (1) Å | µ = 1.19 mm−1 |
c = 12.6760 (15) Å | T = 298 K |
α = 103.932 (3)° | 0.39 × 0.35 × 0.32 mm |
β = 90.289 (2)° |
Bruker SMART CCD area-detector diffractometer | 3361 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2844 reflections with I > 2σ(I) |
Tmin = 0.655, Tmax = 0.684 | Rint = 0.014 |
5068 measured reflections |
R[F2 > 2σ(F2)] = 0.043 | 0 restraints |
wR(F2) = 0.113 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.39 e Å−3 |
3361 reflections | Δρmin = −0.30 e Å−3 |
280 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 | 0.72104 (5) | 0.95250 (5) | 0.26981 (3) | 0.03369 (16) | |
N1 | 0.7309 (3) | 0.9975 (3) | 0.4271 (2) | 0.0318 (6) | |
N2 | 0.8342 (3) | 0.7887 (3) | 0.4100 (2) | 0.0358 (6) | |
N3 | 0.8359 (3) | 0.7890 (3) | 0.3006 (2) | 0.0350 (6) | |
N4 | 0.6970 (3) | 0.9233 (3) | 0.1106 (2) | 0.0296 (6) | |
O1 | 0.6153 (3) | 1.1315 (3) | 0.3022 (2) | 0.0476 (6) | |
O2 | 0.5465 (4) | 1.2990 (4) | 0.4420 (2) | 0.0662 (8) | |
O3 | 0.9435 (3) | 1.1261 (3) | 0.2279 (2) | 0.0472 (7) | |
O4 | 1.0063 (3) | 1.2352 (3) | 0.0888 (2) | 0.0578 (8) | |
H4 | 1.0757 | 1.2945 | 0.1323 | 0.087* | |
O5 | 0.5089 (3) | 0.7472 (3) | 0.21665 (19) | 0.0498 (7) | |
O6 | 0.3550 (4) | 0.6217 (4) | 0.0688 (2) | 0.0735 (10) | |
O7 | 0.2133 (3) | 0.4600 (3) | 0.1912 (2) | 0.0576 (7) | |
H7D | 0.2617 | 0.4484 | 0.2451 | 0.069* | |
H7E | 0.2754 | 0.4928 | 0.1467 | 0.069* | |
O8 | 0.4582 (4) | 0.4587 (4) | 0.3057 (3) | 0.0964 (13) | |
H8A | 0.5002 | 0.5498 | 0.2972 | 0.116* | |
H8B | 0.5112 | 0.4395 | 0.3540 | 0.116* | |
C1 | 0.6077 (4) | 1.1920 (4) | 0.4025 (3) | 0.0419 (8) | |
C2 | 0.6808 (4) | 1.1214 (4) | 0.4800 (3) | 0.0359 (8) | |
C3 | 0.6976 (4) | 1.1722 (4) | 0.5913 (3) | 0.0459 (9) | |
H3 | 0.6632 | 1.2585 | 0.6279 | 0.055* | |
C4 | 0.7675 (4) | 1.0906 (5) | 0.6474 (3) | 0.0463 (9) | |
H4A | 0.7813 | 1.1239 | 0.7230 | 0.056* | |
C5 | 0.8171 (4) | 0.9614 (4) | 0.5940 (3) | 0.0427 (9) | |
H5 | 0.8637 | 0.9066 | 0.6318 | 0.051* | |
C6 | 0.7943 (4) | 0.9166 (4) | 0.4808 (3) | 0.0337 (7) | |
C7 | 0.8598 (6) | 0.6154 (5) | 0.5339 (3) | 0.0578 (11) | |
H7A | 0.8610 | 0.5071 | 0.5244 | 0.087* | |
H7B | 0.7682 | 0.6328 | 0.5675 | 0.087* | |
H7C | 0.9481 | 0.6821 | 0.5795 | 0.087* | |
C8 | 0.8633 (4) | 0.6533 (4) | 0.4257 (3) | 0.0402 (8) | |
C9 | 0.8869 (5) | 0.5692 (5) | 0.3260 (3) | 0.0474 (9) | |
H9 | 0.9105 | 0.4719 | 0.3103 | 0.057* | |
C10 | 0.8691 (4) | 0.6564 (4) | 0.2504 (3) | 0.0394 (8) | |
C11 | 0.8836 (5) | 0.6158 (5) | 0.1306 (3) | 0.0558 (11) | |
H11A | 0.8756 | 0.7030 | 0.1020 | 0.084* | |
H11B | 0.8031 | 0.5247 | 0.0967 | 0.084* | |
H11C | 0.9814 | 0.5936 | 0.1158 | 0.084* | |
C12 | 0.9239 (4) | 1.1361 (4) | 0.1343 (3) | 0.0354 (8) | |
C13 | 0.7922 (4) | 1.0210 (4) | 0.0612 (3) | 0.0325 (7) | |
C14 | 0.7664 (4) | 1.0143 (4) | −0.0471 (3) | 0.0418 (8) | |
H14 | 0.8322 | 1.0841 | −0.0797 | 0.050* | |
C15 | 0.6420 (5) | 0.9030 (5) | −0.1072 (3) | 0.0460 (9) | |
H15 | 0.6246 | 0.8957 | −0.1809 | 0.055* | |
C16 | 0.5451 (4) | 0.8038 (4) | −0.0566 (3) | 0.0437 (9) | |
H16 | 0.4605 | 0.7286 | −0.0953 | 0.052* | |
C17 | 0.5747 (4) | 0.8171 (4) | 0.0524 (3) | 0.0350 (8) | |
C18 | 0.4718 (4) | 0.7214 (4) | 0.1191 (3) | 0.0404 (8) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.0395 (3) | 0.0366 (2) | 0.0240 (2) | 0.00751 (18) | −0.00296 (16) | 0.00805 (16) |
N1 | 0.0295 (15) | 0.0370 (15) | 0.0271 (14) | 0.0050 (12) | −0.0005 (11) | 0.0082 (11) |
N2 | 0.0410 (16) | 0.0431 (16) | 0.0251 (14) | 0.0105 (13) | −0.0025 (12) | 0.0124 (12) |
N3 | 0.0421 (17) | 0.0390 (15) | 0.0244 (14) | 0.0096 (13) | −0.0014 (12) | 0.0099 (12) |
N4 | 0.0303 (14) | 0.0297 (13) | 0.0268 (14) | 0.0040 (11) | −0.0029 (11) | 0.0072 (11) |
O1 | 0.0601 (17) | 0.0491 (15) | 0.0353 (14) | 0.0208 (13) | −0.0082 (12) | 0.0070 (11) |
O2 | 0.083 (2) | 0.0616 (18) | 0.0598 (19) | 0.0395 (17) | −0.0055 (16) | 0.0045 (15) |
O3 | 0.0454 (15) | 0.0490 (15) | 0.0385 (15) | −0.0078 (12) | −0.0113 (12) | 0.0148 (11) |
O4 | 0.0518 (17) | 0.0564 (16) | 0.0536 (17) | −0.0187 (14) | −0.0063 (13) | 0.0252 (13) |
O5 | 0.0479 (15) | 0.0552 (15) | 0.0326 (14) | −0.0134 (13) | −0.0022 (11) | 0.0122 (11) |
O6 | 0.066 (2) | 0.077 (2) | 0.0546 (18) | −0.0361 (17) | −0.0245 (15) | 0.0292 (16) |
O7 | 0.0581 (18) | 0.0593 (17) | 0.0539 (17) | 0.0052 (14) | −0.0020 (14) | 0.0211 (14) |
O8 | 0.076 (2) | 0.074 (2) | 0.147 (4) | 0.0085 (19) | −0.033 (2) | 0.055 (2) |
C1 | 0.040 (2) | 0.0373 (19) | 0.045 (2) | 0.0083 (16) | −0.0040 (16) | 0.0062 (16) |
C2 | 0.0344 (19) | 0.0364 (18) | 0.0319 (18) | 0.0025 (15) | 0.0008 (14) | 0.0058 (14) |
C3 | 0.053 (2) | 0.044 (2) | 0.0331 (19) | 0.0061 (18) | 0.0057 (17) | 0.0002 (16) |
C4 | 0.050 (2) | 0.057 (2) | 0.0234 (17) | 0.0041 (19) | 0.0008 (16) | 0.0042 (16) |
C5 | 0.045 (2) | 0.053 (2) | 0.0295 (18) | 0.0078 (18) | −0.0021 (16) | 0.0146 (16) |
C6 | 0.0324 (18) | 0.0396 (18) | 0.0292 (17) | 0.0057 (15) | −0.0008 (14) | 0.0122 (14) |
C7 | 0.079 (3) | 0.057 (2) | 0.045 (2) | 0.021 (2) | −0.001 (2) | 0.0243 (19) |
C8 | 0.039 (2) | 0.044 (2) | 0.041 (2) | 0.0103 (16) | −0.0043 (16) | 0.0179 (16) |
C9 | 0.058 (3) | 0.043 (2) | 0.044 (2) | 0.0169 (18) | −0.0040 (18) | 0.0120 (17) |
C10 | 0.040 (2) | 0.045 (2) | 0.0324 (18) | 0.0115 (16) | −0.0030 (15) | 0.0074 (15) |
C11 | 0.075 (3) | 0.059 (2) | 0.036 (2) | 0.025 (2) | 0.002 (2) | 0.0070 (18) |
C12 | 0.0322 (18) | 0.0374 (18) | 0.0367 (19) | 0.0032 (15) | −0.0038 (15) | 0.0151 (15) |
C13 | 0.0334 (18) | 0.0354 (17) | 0.0299 (17) | 0.0070 (14) | 0.0002 (14) | 0.0121 (14) |
C14 | 0.045 (2) | 0.048 (2) | 0.0338 (19) | 0.0052 (17) | 0.0028 (16) | 0.0183 (16) |
C15 | 0.054 (2) | 0.057 (2) | 0.0253 (17) | 0.0098 (19) | −0.0060 (16) | 0.0118 (16) |
C16 | 0.047 (2) | 0.048 (2) | 0.0294 (18) | 0.0035 (17) | −0.0093 (16) | 0.0054 (15) |
C17 | 0.041 (2) | 0.0312 (17) | 0.0300 (17) | 0.0064 (15) | −0.0037 (15) | 0.0052 (14) |
C18 | 0.040 (2) | 0.0379 (18) | 0.037 (2) | −0.0032 (16) | −0.0065 (16) | 0.0101 (15) |
Cu1—N1 | 1.934 (3) | C3—C4 | 1.387 (5) |
Cu1—N4 | 1.975 (3) | C3—H3 | 0.9300 |
Cu1—O1 | 2.032 (3) | C4—C5 | 1.377 (5) |
Cu1—N3 | 2.104 (3) | C4—H4A | 0.9300 |
Cu1—O5 | 2.279 (2) | C5—C6 | 1.394 (5) |
Cu1—O3 | 2.372 (2) | C5—H5 | 0.9300 |
N1—C6 | 1.327 (4) | C7—C8 | 1.490 (5) |
N1—C2 | 1.340 (4) | C7—H7A | 0.9600 |
N2—C8 | 1.370 (4) | C7—H7B | 0.9600 |
N2—N3 | 1.388 (4) | C7—H7C | 0.9600 |
N2—C6 | 1.406 (4) | C8—C9 | 1.357 (5) |
N3—C10 | 1.318 (4) | C9—C10 | 1.410 (5) |
N4—C13 | 1.344 (4) | C9—H9 | 0.9300 |
N4—C17 | 1.345 (4) | C10—C11 | 1.489 (5) |
O1—C1 | 1.266 (4) | C11—H11A | 0.9600 |
O2—C1 | 1.233 (4) | C11—H11B | 0.9600 |
O3—C12 | 1.226 (4) | C11—H11C | 0.9600 |
O4—C12 | 1.269 (4) | C12—C13 | 1.505 (5) |
O4—H4 | 0.8200 | C13—C14 | 1.376 (5) |
O5—C18 | 1.230 (4) | C14—C15 | 1.385 (5) |
O6—C18 | 1.256 (4) | C14—H14 | 0.9300 |
O7—H7D | 0.8498 | C15—C16 | 1.369 (5) |
O7—H7E | 0.8498 | C15—H15 | 0.9300 |
O8—H8A | 0.8500 | C16—C17 | 1.377 (5) |
O8—H8B | 0.8500 | C16—H16 | 0.9300 |
C1—C2 | 1.519 (5) | C17—C18 | 1.512 (5) |
C2—C3 | 1.370 (5) | ||
N1—Cu1—N4 | 173.70 (11) | C6—C5—H5 | 121.5 |
N1—Cu1—O1 | 80.55 (11) | N1—C6—C5 | 121.3 (3) |
N4—Cu1—O1 | 93.19 (10) | N1—C6—N2 | 112.0 (3) |
N1—Cu1—N3 | 77.82 (11) | C5—C6—N2 | 126.8 (3) |
N4—Cu1—N3 | 108.45 (10) | C8—C7—H7A | 109.5 |
O1—Cu1—N3 | 158.36 (10) | C8—C7—H7B | 109.5 |
N1—Cu1—O5 | 103.92 (10) | H7A—C7—H7B | 109.5 |
N4—Cu1—O5 | 76.16 (10) | C8—C7—H7C | 109.5 |
O1—Cu1—O5 | 98.55 (11) | H7A—C7—H7C | 109.5 |
N3—Cu1—O5 | 87.33 (11) | H7B—C7—H7C | 109.5 |
N1—Cu1—O3 | 105.16 (10) | C9—C8—N2 | 106.0 (3) |
N4—Cu1—O3 | 75.33 (9) | C9—C8—C7 | 130.9 (3) |
O1—Cu1—O3 | 89.65 (11) | N2—C8—C7 | 123.1 (3) |
N3—Cu1—O3 | 95.34 (10) | C8—C9—C10 | 107.4 (3) |
O5—Cu1—O3 | 150.70 (9) | C8—C9—H9 | 126.3 |
C6—N1—C2 | 121.3 (3) | C10—C9—H9 | 126.3 |
C6—N1—Cu1 | 121.7 (2) | N3—C10—C9 | 110.2 (3) |
C2—N1—Cu1 | 116.9 (2) | N3—C10—C11 | 121.2 (3) |
C8—N2—N3 | 110.9 (3) | C9—C10—C11 | 128.5 (3) |
C8—N2—C6 | 132.6 (3) | C10—C11—H11A | 109.5 |
N3—N2—C6 | 116.4 (3) | C10—C11—H11B | 109.5 |
C10—N3—N2 | 105.5 (3) | H11A—C11—H11B | 109.5 |
C10—N3—Cu1 | 140.2 (2) | C10—C11—H11C | 109.5 |
N2—N3—Cu1 | 110.3 (2) | H11A—C11—H11C | 109.5 |
C13—N4—C17 | 119.1 (3) | H11B—C11—H11C | 109.5 |
C13—N4—Cu1 | 120.4 (2) | O3—C12—O4 | 126.6 (3) |
C17—N4—Cu1 | 120.1 (2) | O3—C12—C13 | 119.5 (3) |
C1—O1—Cu1 | 114.9 (2) | O4—C12—C13 | 113.9 (3) |
C12—O3—Cu1 | 108.3 (2) | N4—C13—C14 | 121.2 (3) |
C12—O4—H4 | 109.5 | N4—C13—C12 | 114.5 (3) |
C18—O5—Cu1 | 111.8 (2) | C14—C13—C12 | 124.3 (3) |
H7D—O7—H7E | 110.6 | C13—C14—C15 | 119.6 (3) |
H8A—O8—H8B | 109.0 | C13—C14—H14 | 120.2 |
O2—C1—O1 | 126.8 (4) | C15—C14—H14 | 120.2 |
O2—C1—C2 | 118.0 (3) | C16—C15—C14 | 119.0 (3) |
O1—C1—C2 | 115.1 (3) | C16—C15—H15 | 120.5 |
N1—C2—C3 | 121.1 (3) | C14—C15—H15 | 120.5 |
N1—C2—C1 | 112.1 (3) | C15—C16—C17 | 119.0 (3) |
C3—C2—C1 | 126.7 (3) | C15—C16—H16 | 120.5 |
C2—C3—C4 | 117.7 (3) | C17—C16—H16 | 120.5 |
C2—C3—H3 | 121.1 | N4—C17—C16 | 122.1 (3) |
C4—C3—H3 | 121.1 | N4—C17—C18 | 113.7 (3) |
C5—C4—C3 | 121.6 (3) | C16—C17—C18 | 124.2 (3) |
C5—C4—H4A | 119.2 | O5—C18—O6 | 125.8 (3) |
C3—C4—H4A | 119.2 | O5—C18—C17 | 117.9 (3) |
C4—C5—C6 | 116.9 (3) | O6—C18—C17 | 116.2 (3) |
C4—C5—H5 | 121.5 | ||
O1—Cu1—N1—C6 | 179.7 (3) | O1—C1—C2—C3 | 175.1 (3) |
N3—Cu1—N1—C6 | −1.0 (3) | N1—C2—C3—C4 | −0.3 (5) |
O5—Cu1—N1—C6 | 83.1 (3) | C1—C2—C3—C4 | 179.8 (3) |
O3—Cu1—N1—C6 | −93.3 (3) | C2—C3—C4—C5 | −0.8 (6) |
O1—Cu1—N1—C2 | −5.0 (2) | C3—C4—C5—C6 | 0.2 (5) |
N3—Cu1—N1—C2 | 174.3 (3) | C2—N1—C6—C5 | −2.7 (5) |
O5—Cu1—N1—C2 | −101.6 (2) | Cu1—N1—C6—C5 | 172.4 (2) |
O3—Cu1—N1—C2 | 82.0 (2) | C2—N1—C6—N2 | 178.1 (3) |
C8—N2—N3—C10 | −1.3 (4) | Cu1—N1—C6—N2 | −6.8 (4) |
C6—N2—N3—C10 | −177.3 (3) | C4—C5—C6—N1 | 1.5 (5) |
C8—N2—N3—Cu1 | 160.9 (2) | C4—C5—C6—N2 | −179.4 (3) |
C6—N2—N3—Cu1 | −15.0 (3) | C8—N2—C6—N1 | −160.3 (3) |
N1—Cu1—N3—C10 | 161.2 (4) | N3—N2—C6—N1 | 14.5 (4) |
N4—Cu1—N3—C10 | −18.1 (4) | C8—N2—C6—C5 | 20.6 (6) |
O1—Cu1—N3—C10 | 163.0 (3) | N3—N2—C6—C5 | −164.6 (3) |
O5—Cu1—N3—C10 | 56.4 (4) | N3—N2—C8—C9 | 1.4 (4) |
O3—Cu1—N3—C10 | −94.4 (4) | C6—N2—C8—C9 | 176.4 (4) |
N1—Cu1—N3—N2 | 8.5 (2) | N3—N2—C8—C7 | −176.3 (3) |
N4—Cu1—N3—N2 | −170.80 (19) | C6—N2—C8—C7 | −1.3 (6) |
O1—Cu1—N3—N2 | 10.3 (4) | N2—C8—C9—C10 | −0.8 (4) |
O5—Cu1—N3—N2 | −96.3 (2) | C7—C8—C9—C10 | 176.6 (4) |
O3—Cu1—N3—N2 | 112.9 (2) | N2—N3—C10—C9 | 0.8 (4) |
O1—Cu1—N4—C13 | 79.0 (3) | Cu1—N3—C10—C9 | −152.7 (3) |
N3—Cu1—N4—C13 | −100.6 (3) | N2—N3—C10—C11 | −179.0 (3) |
O5—Cu1—N4—C13 | 177.0 (3) | Cu1—N3—C10—C11 | 27.5 (6) |
O3—Cu1—N4—C13 | −9.8 (2) | C8—C9—C10—N3 | 0.0 (4) |
O1—Cu1—N4—C17 | −93.3 (2) | C8—C9—C10—C11 | 179.8 (4) |
N3—Cu1—N4—C17 | 87.1 (3) | Cu1—O3—C12—O4 | 168.4 (3) |
O5—Cu1—N4—C17 | 4.7 (2) | Cu1—O3—C12—C13 | −12.6 (4) |
O3—Cu1—N4—C17 | 177.9 (3) | C17—N4—C13—C14 | 0.1 (5) |
N1—Cu1—O1—C1 | 2.1 (3) | Cu1—N4—C13—C14 | −172.3 (3) |
N4—Cu1—O1—C1 | −178.6 (3) | C17—N4—C13—C12 | 179.3 (3) |
N3—Cu1—O1—C1 | 0.4 (5) | Cu1—N4—C13—C12 | 6.9 (4) |
O5—Cu1—O1—C1 | 104.9 (3) | O3—C12—C13—N4 | 5.8 (5) |
O3—Cu1—O1—C1 | −103.3 (3) | O4—C12—C13—N4 | −175.1 (3) |
N1—Cu1—O3—C12 | −161.4 (2) | O3—C12—C13—C14 | −175.0 (3) |
N4—Cu1—O3—C12 | 12.1 (2) | O4—C12—C13—C14 | 4.1 (5) |
O1—Cu1—O3—C12 | −81.3 (2) | N4—C13—C14—C15 | −1.3 (5) |
N3—Cu1—O3—C12 | 119.8 (2) | C12—C13—C14—C15 | 179.6 (3) |
O5—Cu1—O3—C12 | 25.8 (4) | C13—C14—C15—C16 | 1.4 (6) |
N1—Cu1—O5—C18 | 168.6 (3) | C14—C15—C16—C17 | −0.4 (6) |
N4—Cu1—O5—C18 | −4.9 (3) | C13—N4—C17—C16 | 0.9 (5) |
O1—Cu1—O5—C18 | 86.3 (3) | Cu1—N4—C17—C16 | 173.3 (3) |
N3—Cu1—O5—C18 | −114.6 (3) | C13—N4—C17—C18 | −176.4 (3) |
O3—Cu1—O5—C18 | −18.5 (4) | Cu1—N4—C17—C18 | −4.0 (4) |
Cu1—O1—C1—O2 | −178.3 (3) | C15—C16—C17—N4 | −0.8 (6) |
Cu1—O1—C1—C2 | 0.8 (4) | C15—C16—C17—C18 | 176.3 (4) |
C6—N1—C2—C3 | 2.0 (5) | Cu1—O5—C18—O6 | −175.8 (4) |
Cu1—N1—C2—C3 | −173.3 (3) | Cu1—O5—C18—C17 | 4.4 (4) |
C6—N1—C2—C1 | −178.0 (3) | N4—C17—C18—O5 | −0.8 (5) |
Cu1—N1—C2—C1 | 6.7 (4) | C16—C17—C18—O5 | −178.1 (4) |
O2—C1—C2—N1 | 174.4 (3) | N4—C17—C18—O6 | 179.3 (3) |
O1—C1—C2—N1 | −4.8 (4) | C16—C17—C18—O6 | 2.0 (6) |
O2—C1—C2—C3 | −5.6 (6) |
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4···O7i | 0.82 | 1.69 | 2.477 (4) | 159 |
O7—H7D···O8 | 0.85 | 1.89 | 2.637 (4) | 145 |
O7—H7E···O6 | 0.85 | 1.73 | 2.524 (4) | 154 |
O8—H8A···O5 | 0.85 | 2.25 | 3.020 (4) | 152 |
O8—H8B···O2ii | 0.85 | 1.96 | 2.730 (4) | 151 |
Symmetry codes: (i) x+1, y+1, z; (ii) x, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C7H4NO4)(C11H10N3O2)]·2H2O |
Mr | 481.90 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 298 |
a, b, c (Å) | 9.004 (1), 9.036 (1), 12.6760 (15) |
α, β, γ (°) | 103.932 (3), 90.289 (2), 104.177 (3) |
V (Å3) | 968.25 (19) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.19 |
Crystal size (mm) | 0.39 × 0.35 × 0.32 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.655, 0.684 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 5068, 3361, 2844 |
Rint | 0.014 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.043, 0.113, 1.03 |
No. of reflections | 3361 |
No. of parameters | 280 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.39, −0.30 |
Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O4—H4···O7i | 0.82 | 1.69 | 2.477 (4) | 158.8 |
O7—H7D···O8 | 0.85 | 1.89 | 2.637 (4) | 144.8 |
O7—H7E···O6 | 0.85 | 1.73 | 2.524 (4) | 154.4 |
O8—H8A···O5 | 0.85 | 2.25 | 3.020 (4) | 151.5 |
O8—H8B···O2ii | 0.85 | 1.96 | 2.730 (4) | 150.5 |
Symmetry codes: (i) x+1, y+1, z; (ii) x, y−1, z. |
Acknowledgements
The authors thank the Ministry of Education, Science and Technology Key Projects, P. R. China, for research grant No. 205121.
References
Feng, Y., Zhao, K., Yin, X.-H., Zhu, J. & Lin, C.-W. (2008). Acta Cryst. E64, m191. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Siemens (1996). SMART and SAINT. Siemens Analytical X-ray Instruments Inc., Madison, Wisconsin, USA. Google Scholar
Yin, X.-H., Zhao, K., Feng, Y. & Zhu, J. (2007). Acta Cryst. E63, m2926. Web of Science CSD CrossRef IUCr Journals Google Scholar
Zhao, K., Yin, X.-H., Feng, Y. & Zhu, J. (2007). Acta Cryst. E63, m3024. Web of Science CSD CrossRef IUCr Journals Google Scholar
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Recently we reported the crystal structures of bis(6-(3,5-dimethyl-1H-pyrazol-1-yl)picolinato)zinc(II) trihydrate [Yin et al., 2007] and bis[3-chloro-6-(3,5-dimethyl-1H-pyrazol-1-yl)picolinato]cobalt(II) hemipentahydrate [Zhao et al., 2007]. As a continuation of these investigations, we report here the crystal structure of a new copper(II) complex with the ligand 3-chloro-6-(3,5-dimethyl-1 H-pyrazol-1-yl) picolinic acid (CDPA) and pyridine-2,6-dicarboxylate (PDBL). (Fig.1).
The title compound, (I), consists of a central asymmetric copper(II) complex cation and two uncoordinated water molecules. The compound is isostructural with its Ni derivative [Feng et al., 2008]. In the cation (Fig.1), the Cu atom is six-coordinated by three N atoms and three O atoms from CDPA and PDBL ligands. The three diagonal angles for the Cu(II) octahedron range from 150.7 (4)° to 173.7 (2)°, the dihedral angle between the planes of the two ligands is 80.5 (6)°, which indicates a slightly distorted octahedral geometry around the CuIIatom.
Analysis of the crystal packing of the title compound reveals the existence of multiple intermolecular O—H···O hydrogen bonds between the mononuclear subunits and the lattice water molecules (Figure 2), forming a two-dimensional hydrogen-bonded sheet perpendicular to the c-axis of the structure (Figure 3). In this sheet the two interstitial water molecules are connecting three complex molecules with each other: The protonated carboxyl oxygen atom O4 acts as a hydrogen donor towards O7 of one of the water molecules. One of the H atoms of O7 in turn binds with the second water molecule, and each one H atom of both water molecules acts as a hydrogen bonding donor towards the two carboxyl O atoms O5 and O6 of a neighboring complex. The last remaining water H atom (H8b) makes the connection to the third complex connected by the two water molecules (Figure 2). The carboxylate group that acts as an H bond acceptor towards both water molecules via both of its O atoms O5 and O6 exhibits a delocalized π system with nearly identical C—O distances.