metal-organic compounds
Aqua[1-(pyridin-2-yl)ethanone oximato][1-(2-pyridin-2-yl)ethanone oxime]copper(II) perchlorate monohydrate
aThe Third Middle School in Liaocheng, Shandong 252059, People's Republic of China, and bDepartment of Chemistry and Biology, Dongchang College Liaocheng University, Shandong 252059, People's Republic of China
*Correspondence e-mail: lidacheng62@163.com
In the title compound, [Cu(C7H7N2O)(C7H8N2O)(H2O)]ClO4·H2O, the CuII ion is five-coordinated by the N atoms from the 1-(pyridin-2-yl)ethanone oximate and 1-(pyridin-2-yl)ethanone oxime ligands and by the water O atom in a distorted square-pyramidal geometry. The two organic ligands are linked by an intramolecular O—H⋯O hydrogen bond. In the crystal, molecules and ions are linked by O—H⋯O hydrogen-bonding interactions, forming chains along the a axis. The perchlorate O atoms are disordered in a 0.58 (2):0.42 (2) ratio.
Related literature
For the coordination chemistry of ); Pavlishchuk et al. (2003). For related structures, see: Qiu et al. (2011); Wu & Wu (2008); Zuo et al. (2007). For the properties of related complexes, see: Davidson et al. (2007); Clerac et al. (2002).
see: Chaudhuri (2003Experimental
Crystal data
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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), Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXTL.
Supporting information
https://doi.org/10.1107/S1600536812023872/aa2060sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536812023872/aa2060Isup2.hkl
A solution of Cu(ClO4)2 (0.1311 g, 0.5 mmol) in H2O (10 ml) was added to a solution of 1-(pyridin-2-yl)ethanone oxime (0.068 g, 0.5 mmol) in MeCN (10 ml). After 0.5 h stirring, solid NaOAc (0.082 g, 1 mmol) was added slowly, and the reaction mixture was kept under magnetic stirring for another 6h. A small quantity of undissolved material was removed by filtration and the solution was left to slowly evaporate, and after one month, green crystals suitable for X-ray diffraction were obtained. (20.5%, m.p. 310-315 K). FTIR (KBr) v (cm-l): 3448 (O—H); 1597, (Cδb N); 2917, 1437, (C—H); 1157, 1177, 1260 (N—O).
All H atoms were placed in geometrically idealized positions [C—H 0.96 (methyl), C—H 0.93 (pyridyl) O—H 0.85 Å)and treated as riding on their parent atoms, with Uiso(H) = 1.2Ueq or 1.5Ueq(C), Uiso(H) = 1.2Ueq(O).
There is a new interest in the coordination chemistry of
(Davidson et al., 2007; Pavlishchuk et al., 2003; Chaudhuri, 2003). 2-pyridyl are a subclass of whose anions are versatile ligands for a variety of research objectives and have been key ligands in several areas of molecular magnetism, including single-molecule and single-chain magnets (Clerac et al., 2002).In the title complex (Fig. 1) the Cu2+ center is five-coordinated by N atoms from two 1-(pyridin-2-yl)ethanone oxime ligands (one of them is deprotonated) and one water molecule. The two 1-(pyridin-2-yl)ethanone oxime ligands are coordinated to copper to form two five-membered CuC2N2 rings and a strong intramolecular hydrogen bond exists between the OH group and the negatively charged oxygen of the other ligand which is shorter than reported in the literature (Qiu et al., 2011; Wu et al. 2008). The copper atom adopts a distorted 4+1 square-pyramidal coordination mode with the distortion parameter being 0.005, which is smaller than the values reported in the literature (Qiu et al., 2011; Wu et al., 2008). Another water molecule and the perchlorate anion are not coordinated but they take part in the formation of H-bonds (Table 1). The perclorate O atoms are disordered between two orientations around the central Cl atom with the occupancies 0.42 (2) (O4/O7) and 0.58 (2) (O4A/O7A).
For the coordination chemistry of
see: Chaudhuri (2003); Pavlishchuk et al. (2003). For related structures, see: Qiu et al. (2011); Wu & Wu (2008); Zuo et al. (2007). For the properties of related complexes, see: Davidson et al. (2007); Clerac et al. (2002). Scheme - water should coordinate via O atom, not H as shownData collection: SMART (Siemens, 1996); cell
SAINT (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), Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).[Cu(C7H7N2O)(C7H8N2O)(H2O)]ClO4·H2O | F(000) = 482 |
Mr = 470.32 | Dx = 1.623 Mg m−3 |
Monoclinic, Pc | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: P -2yc | Cell parameters from 2353 reflections |
a = 6.3526 (7) Å | θ = 2.5–24.1° |
b = 15.7199 (14) Å | µ = 1.32 mm−1 |
c = 9.8235 (9) Å | T = 298 K |
β = 101.235 (1)° | Block, green |
V = 962.20 (16) Å3 | 0.45 × 0.40 × 0.39 mm |
Z = 2 |
Siemens SMART CCD area-detector diffractometer | 2284 independent reflections |
Radiation source: fine-focus sealed tube | 2062 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.031 |
phi and ω scans | θmax = 25.0°, θmin = 2.5° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −7→7 |
Tmin = 0.587, Tmax = 0.626 | k = −18→18 |
4732 measured reflections | l = −9→11 |
Refinement on F2 | Secondary atom site location: difference Fourier map |
Least-squares matrix: full | Hydrogen site location: inferred from neighbouring sites |
R[F2 > 2σ(F2)] = 0.037 | H-atom parameters constrained |
wR(F2) = 0.096 | w = 1/[σ2(Fo2) + (0.0657P)2] where P = (Fo2 + 2Fc2)/3 |
S = 1.00 | (Δ/σ)max = 0.001 |
2284 reflections | Δρmax = 0.31 e Å−3 |
292 parameters | Δρmin = −0.36 e Å−3 |
2 restraints | Absolute structure: Flack (1983) |
Primary atom site location: structure-invariant direct methods | Absolute structure parameter: 0.00 (2) |
[Cu(C7H7N2O)(C7H8N2O)(H2O)]ClO4·H2O | V = 962.20 (16) Å3 |
Mr = 470.32 | Z = 2 |
Monoclinic, Pc | Mo Kα radiation |
a = 6.3526 (7) Å | µ = 1.32 mm−1 |
b = 15.7199 (14) Å | T = 298 K |
c = 9.8235 (9) Å | 0.45 × 0.40 × 0.39 mm |
β = 101.235 (1)° |
Siemens SMART CCD area-detector diffractometer | 2284 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 2062 reflections with I > 2σ(I) |
Tmin = 0.587, Tmax = 0.626 | Rint = 0.031 |
4732 measured reflections |
R[F2 > 2σ(F2)] = 0.037 | H-atom parameters constrained |
wR(F2) = 0.096 | Δρmax = 0.31 e Å−3 |
S = 1.00 | Δρmin = −0.36 e Å−3 |
2284 reflections | Absolute structure: Flack (1983) |
292 parameters | Absolute structure parameter: 0.00 (2) |
2 restraints |
x | y | z | Uiso*/Ueq | Occ. (<1) | |
Cu1 | 0.90524 (7) | 0.78796 (3) | 0.51950 (6) | 0.04434 (19) | |
N1 | 1.0620 (8) | 0.8673 (3) | 0.4096 (5) | 0.0487 (11) | |
N2 | 0.7645 (8) | 0.8981 (3) | 0.5462 (5) | 0.0529 (11) | |
N3 | 0.9979 (8) | 0.6665 (3) | 0.4862 (5) | 0.0501 (11) | |
N4 | 0.7118 (8) | 0.7233 (3) | 0.6158 (5) | 0.0559 (12) | |
O1 | 0.6121 (8) | 0.9078 (3) | 0.6241 (5) | 0.0749 (13) | |
H1 | 0.5875 | 0.8617 | 0.6568 | 0.112* | |
O2 | 0.5748 (8) | 0.7602 (3) | 0.6854 (6) | 0.0786 (14) | |
O3 | 1.1616 (7) | 0.7948 (2) | 0.7173 (4) | 0.0574 (10) | |
H3C | 1.2907 | 0.7810 | 0.7164 | 0.069* | |
H3D | 1.1287 | 0.7759 | 0.7916 | 0.069* | |
O4 | 0.644 (5) | 0.6788 (19) | 0.031 (3) | 0.173 (11) | 0.42 (2) |
O5 | 0.697 (5) | 0.7657 (16) | 0.225 (3) | 0.113 (9) | 0.42 (2) |
O6 | 0.362 (4) | 0.7125 (19) | 0.129 (3) | 0.156 (12) | 0.42 (2) |
O7 | 0.612 (4) | 0.6234 (11) | 0.239 (2) | 0.133 (9) | 0.42 (2) |
O4A | 0.616 (3) | 0.7497 (16) | 0.277 (2) | 0.120 (7) | 0.58 (2) |
O5A | 0.421 (4) | 0.6442 (16) | 0.159 (2) | 0.183 (10) | 0.58 (2) |
O6A | 0.776 (3) | 0.6580 (10) | 0.1461 (18) | 0.140 (8) | 0.58 (2) |
O7A | 0.530 (3) | 0.7535 (10) | 0.0400 (16) | 0.146 (7) | 0.58 (2) |
O8 | 0.0118 (15) | 0.7456 (7) | 0.9393 (8) | 0.149 (3) | |
H8C | 0.1086 | 0.7216 | 0.9990 | 0.179* | |
H8D | −0.1035 | 0.7468 | 0.9708 | 0.179* | |
Cl1 | 0.5869 (3) | 0.69941 (11) | 0.15550 (19) | 0.0719 (5) | |
C1 | 1.2136 (12) | 0.8510 (4) | 0.3400 (8) | 0.073 (2) | |
H1A | 1.2607 | 0.7951 | 0.3381 | 0.088* | |
C2 | 1.3084 (13) | 0.9117 (4) | 0.2689 (9) | 0.077 (2) | |
H2 | 1.4162 | 0.8970 | 0.2213 | 0.093* | |
C3 | 1.2380 (11) | 0.9941 (4) | 0.2710 (7) | 0.0660 (17) | |
H3 | 1.2958 | 1.0365 | 0.2234 | 0.079* | |
C4 | 1.0826 (10) | 1.0129 (3) | 0.3439 (6) | 0.0552 (14) | |
H4 | 1.0358 | 1.0688 | 0.3478 | 0.066* | |
C5 | 0.9947 (9) | 0.9500 (3) | 0.4114 (5) | 0.0426 (11) | |
C6 | 0.8256 (9) | 0.9661 (3) | 0.4914 (6) | 0.0494 (13) | |
C7 | 0.7378 (12) | 1.0516 (4) | 0.5062 (8) | 0.0723 (18) | |
H7A | 0.7683 | 1.0679 | 0.6022 | 0.108* | |
H7B | 0.5854 | 1.0509 | 0.4730 | 0.108* | |
H7C | 0.8027 | 1.0916 | 0.4530 | 0.108* | |
C8 | 1.1394 (14) | 0.6393 (5) | 0.4171 (8) | 0.070 (2) | |
H8 | 1.2088 | 0.6797 | 0.3724 | 0.084* | |
C9 | 1.1956 (15) | 0.5537 (4) | 0.4048 (9) | 0.085 (2) | |
H9 | 1.2981 | 0.5373 | 0.3542 | 0.102* | |
C10 | 1.0912 (16) | 0.4959 (4) | 0.4713 (9) | 0.088 (2) | |
H10 | 1.1217 | 0.4382 | 0.4666 | 0.106* | |
C11 | 0.9453 (15) | 0.5222 (4) | 0.5433 (9) | 0.079 (2) | |
H11 | 0.8756 | 0.4826 | 0.5892 | 0.095* | |
C12 | 0.8964 (13) | 0.6082 (3) | 0.5501 (6) | 0.0569 (17) | |
C13 | 0.7394 (12) | 0.6412 (4) | 0.6278 (8) | 0.0603 (18) | |
C14 | 0.6098 (15) | 0.5892 (6) | 0.7110 (10) | 0.094 (3) | |
H14A | 0.4660 | 0.5828 | 0.6593 | 0.141* | |
H14B | 0.6064 | 0.6176 | 0.7971 | 0.141* | |
H14C | 0.6743 | 0.5341 | 0.7296 | 0.141* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Cu1 | 0.0416 (3) | 0.0393 (3) | 0.0582 (3) | 0.0006 (4) | 0.0246 (2) | 0.0052 (3) |
N1 | 0.052 (3) | 0.040 (2) | 0.060 (3) | 0.002 (2) | 0.029 (2) | 0.001 (2) |
N2 | 0.053 (3) | 0.050 (3) | 0.065 (3) | 0.010 (2) | 0.033 (2) | 0.000 (2) |
N3 | 0.056 (3) | 0.043 (2) | 0.054 (3) | −0.001 (2) | 0.017 (2) | 0.002 (2) |
N4 | 0.048 (3) | 0.060 (3) | 0.065 (3) | −0.003 (2) | 0.023 (2) | 0.008 (2) |
O1 | 0.074 (3) | 0.067 (3) | 0.102 (3) | 0.015 (2) | 0.062 (3) | 0.006 (2) |
O2 | 0.059 (3) | 0.080 (3) | 0.111 (4) | 0.003 (3) | 0.051 (3) | 0.021 (3) |
O3 | 0.042 (2) | 0.069 (2) | 0.064 (3) | 0.0020 (17) | 0.0151 (19) | −0.0034 (18) |
O4 | 0.19 (3) | 0.19 (3) | 0.14 (2) | 0.02 (2) | 0.04 (2) | −0.020 (19) |
O5 | 0.115 (19) | 0.083 (10) | 0.13 (2) | −0.021 (12) | −0.001 (13) | 0.023 (12) |
O6 | 0.128 (18) | 0.16 (2) | 0.17 (2) | 0.042 (17) | 0.002 (16) | −0.028 (18) |
O7 | 0.138 (18) | 0.101 (12) | 0.141 (16) | −0.011 (11) | −0.019 (13) | 0.009 (10) |
O4A | 0.108 (14) | 0.133 (15) | 0.110 (13) | 0.037 (11) | 0.000 (8) | −0.033 (11) |
O5A | 0.18 (2) | 0.172 (18) | 0.198 (19) | −0.056 (18) | 0.038 (16) | 0.016 (16) |
O6A | 0.143 (13) | 0.147 (13) | 0.135 (14) | 0.077 (11) | 0.041 (10) | −0.022 (10) |
O7A | 0.187 (16) | 0.123 (11) | 0.120 (11) | 0.013 (11) | 0.006 (11) | 0.038 (9) |
O8 | 0.124 (6) | 0.226 (9) | 0.108 (5) | 0.001 (7) | 0.051 (5) | 0.048 (6) |
Cl1 | 0.0737 (12) | 0.0706 (10) | 0.0779 (11) | 0.0041 (9) | 0.0309 (9) | −0.0088 (8) |
C1 | 0.085 (5) | 0.049 (3) | 0.102 (6) | 0.009 (3) | 0.057 (4) | 0.009 (3) |
C2 | 0.079 (5) | 0.066 (4) | 0.107 (5) | 0.002 (4) | 0.067 (4) | 0.017 (4) |
C3 | 0.069 (4) | 0.062 (4) | 0.075 (4) | −0.010 (3) | 0.035 (3) | 0.020 (3) |
C4 | 0.059 (4) | 0.039 (3) | 0.069 (4) | −0.003 (2) | 0.017 (3) | 0.012 (2) |
C5 | 0.045 (3) | 0.037 (2) | 0.047 (3) | 0.000 (2) | 0.015 (2) | 0.002 (2) |
C6 | 0.050 (3) | 0.041 (3) | 0.063 (3) | 0.006 (2) | 0.023 (3) | 0.003 (2) |
C7 | 0.080 (5) | 0.058 (3) | 0.086 (4) | 0.025 (3) | 0.033 (4) | −0.001 (3) |
C8 | 0.090 (6) | 0.048 (4) | 0.082 (5) | 0.001 (4) | 0.040 (4) | 0.005 (3) |
C9 | 0.101 (6) | 0.054 (4) | 0.107 (6) | 0.011 (4) | 0.039 (5) | −0.006 (4) |
C10 | 0.119 (7) | 0.044 (3) | 0.099 (5) | 0.000 (4) | 0.015 (5) | −0.005 (4) |
C11 | 0.092 (6) | 0.047 (3) | 0.093 (6) | −0.019 (4) | 0.004 (5) | 0.009 (3) |
C12 | 0.060 (3) | 0.047 (3) | 0.059 (4) | −0.010 (3) | 0.000 (3) | 0.006 (3) |
C13 | 0.054 (4) | 0.055 (4) | 0.068 (4) | −0.012 (3) | 0.003 (3) | 0.018 (3) |
C14 | 0.087 (5) | 0.083 (5) | 0.119 (7) | −0.025 (4) | 0.035 (5) | 0.035 (5) |
Cu1—N4 | 1.973 (5) | C1—C2 | 1.387 (8) |
Cu1—N2 | 1.989 (4) | C1—H1A | 0.9300 |
Cu1—N1 | 2.033 (5) | C2—C3 | 1.372 (9) |
Cu1—N3 | 2.043 (5) | C2—H2 | 0.9300 |
Cu1—O3 | 2.282 (4) | C3—C4 | 1.360 (8) |
N1—C1 | 1.311 (8) | C3—H3 | 0.9300 |
N1—C5 | 1.370 (7) | C4—C5 | 1.369 (7) |
N2—C6 | 1.291 (7) | C4—H4 | 0.9300 |
N2—O1 | 1.355 (6) | C5—C6 | 1.472 (7) |
N3—C8 | 1.300 (9) | C6—C7 | 1.472 (7) |
N3—C12 | 1.345 (7) | C7—H7A | 0.9600 |
N4—C13 | 1.305 (7) | C7—H7B | 0.9600 |
N4—O2 | 1.340 (6) | C7—H7C | 0.9600 |
O1—H1 | 0.8200 | C8—C9 | 1.403 (10) |
O3—H3C | 0.8500 | C8—H8 | 0.9300 |
O3—H3D | 0.8500 | C9—C10 | 1.364 (12) |
O4—Cl1 | 1.38 (2) | C9—H9 | 0.9300 |
O5—Cl1 | 1.36 (3) | C10—C11 | 1.336 (13) |
O6—Cl1 | 1.42 (3) | C10—H10 | 0.9300 |
O7—Cl1 | 1.438 (19) | C11—C12 | 1.392 (9) |
O4A—Cl1 | 1.414 (18) | C11—H11 | 0.9300 |
O5A—Cl1 | 1.371 (18) | C12—C13 | 1.463 (11) |
O6A—Cl1 | 1.385 (13) | C13—C14 | 1.509 (9) |
O7A—Cl1 | 1.407 (13) | C14—H14A | 0.9600 |
O8—H8C | 0.8501 | C14—H14B | 0.9600 |
O8—H8D | 0.8500 | C14—H14C | 0.9600 |
N4—Cu1—N2 | 92.72 (19) | C1—C2—H2 | 121.1 |
N4—Cu1—N1 | 170.52 (19) | C4—C3—C2 | 119.1 (5) |
N2—Cu1—N1 | 79.4 (2) | C4—C3—H3 | 120.5 |
N4—Cu1—N3 | 79.7 (2) | C2—C3—H3 | 120.5 |
N2—Cu1—N3 | 170.2 (2) | C3—C4—C5 | 120.3 (5) |
N1—Cu1—N3 | 107.58 (19) | C3—C4—H4 | 119.9 |
N4—Cu1—O3 | 91.35 (19) | C5—C4—H4 | 119.9 |
N2—Cu1—O3 | 96.39 (18) | C4—C5—N1 | 121.5 (5) |
N1—Cu1—O3 | 94.67 (18) | C4—C5—C6 | 122.9 (5) |
N3—Cu1—O3 | 90.01 (17) | N1—C5—C6 | 115.6 (4) |
C1—N1—C5 | 117.1 (5) | N2—C6—C5 | 113.0 (4) |
C1—N1—Cu1 | 130.0 (4) | N2—C6—C7 | 124.4 (5) |
C5—N1—Cu1 | 112.9 (3) | C5—C6—C7 | 122.6 (5) |
C6—N2—O1 | 116.6 (4) | C6—C7—H7A | 109.5 |
C6—N2—Cu1 | 119.1 (4) | C6—C7—H7B | 109.5 |
O1—N2—Cu1 | 124.2 (4) | H7A—C7—H7B | 109.5 |
C8—N3—C12 | 117.6 (5) | C6—C7—H7C | 109.5 |
C8—N3—Cu1 | 129.9 (4) | H7A—C7—H7C | 109.5 |
C12—N3—Cu1 | 112.5 (4) | H7B—C7—H7C | 109.5 |
C13—N4—O2 | 118.2 (5) | N3—C8—C9 | 125.0 (7) |
C13—N4—Cu1 | 117.9 (5) | N3—C8—H8 | 117.5 |
O2—N4—Cu1 | 123.3 (4) | C9—C8—H8 | 117.5 |
N2—O1—H1 | 109.5 | C10—C9—C8 | 116.3 (8) |
Cu1—O3—H3C | 120.6 | C10—C9—H9 | 121.9 |
Cu1—O3—H3D | 117.4 | C8—C9—H9 | 121.9 |
H3C—O3—H3D | 108.6 | C11—C10—C9 | 119.9 (6) |
H8C—O8—H8D | 108.5 | C11—C10—H10 | 120.0 |
O5—Cl1—O4 | 115.1 (18) | C9—C10—H10 | 120.0 |
O5A—Cl1—O6A | 112.7 (14) | C10—C11—C12 | 120.7 (7) |
O5A—Cl1—O7A | 108.9 (13) | C10—C11—H11 | 119.7 |
O6A—Cl1—O7A | 108.6 (11) | C12—C11—H11 | 119.6 |
O5A—Cl1—O4A | 108.1 (14) | N3—C12—C11 | 120.5 (8) |
O6A—Cl1—O4A | 110.2 (10) | N3—C12—C13 | 116.1 (5) |
O7A—Cl1—O4A | 108.4 (11) | C11—C12—C13 | 123.4 (6) |
O5—Cl1—O6 | 112.4 (16) | N4—C13—C12 | 113.4 (6) |
O4—Cl1—O6 | 107.6 (18) | N4—C13—C14 | 120.4 (7) |
O5—Cl1—O7 | 111.4 (13) | C12—C13—C14 | 126.2 (6) |
O4—Cl1—O7 | 106.8 (16) | C13—C14—H14A | 109.5 |
O6—Cl1—O7 | 102.6 (17) | C13—C14—H14B | 109.5 |
N1—C1—C2 | 124.3 (6) | H14A—C14—H14B | 109.5 |
N1—C1—H1A | 117.9 | C13—C14—H14C | 109.5 |
C2—C1—H1A | 117.9 | H14A—C14—H14C | 109.5 |
C3—C2—C1 | 117.8 (6) | H14B—C14—H14C | 109.5 |
C3—C2—H2 | 121.1 | ||
N2—Cu1—N1—C1 | −179.9 (7) | C1—N1—C5—C4 | −0.2 (8) |
N3—Cu1—N1—C1 | −7.0 (7) | Cu1—N1—C5—C4 | 179.6 (4) |
O3—Cu1—N1—C1 | 84.5 (6) | C1—N1—C5—C6 | −179.5 (6) |
N2—Cu1—N1—C5 | 0.3 (4) | Cu1—N1—C5—C6 | 0.3 (6) |
N3—Cu1—N1—C5 | 173.2 (4) | O1—N2—C6—C5 | 178.7 (5) |
O3—Cu1—N1—C5 | −95.3 (4) | Cu1—N2—C6—C5 | 1.3 (7) |
N4—Cu1—N2—C6 | −175.7 (5) | O1—N2—C6—C7 | −1.2 (9) |
N1—Cu1—N2—C6 | −1.0 (5) | Cu1—N2—C6—C7 | −178.6 (5) |
O3—Cu1—N2—C6 | 92.6 (5) | C4—C5—C6—N2 | 179.7 (5) |
N4—Cu1—N2—O1 | 7.2 (5) | N1—C5—C6—N2 | −1.0 (7) |
N1—Cu1—N2—O1 | −178.1 (5) | C4—C5—C6—C7 | −0.4 (8) |
O3—Cu1—N2—O1 | −84.5 (5) | N1—C5—C6—C7 | 178.9 (6) |
N4—Cu1—N3—C8 | 178.0 (7) | C12—N3—C8—C9 | −0.4 (12) |
N1—Cu1—N3—C8 | 4.3 (7) | Cu1—N3—C8—C9 | 177.8 (6) |
O3—Cu1—N3—C8 | −90.6 (7) | N3—C8—C9—C10 | 0.0 (13) |
N4—Cu1—N3—C12 | −3.7 (4) | C8—C9—C10—C11 | −0.2 (13) |
N1—Cu1—N3—C12 | −177.5 (4) | C9—C10—C11—C12 | 0.7 (12) |
O3—Cu1—N3—C12 | 87.6 (4) | C8—N3—C12—C11 | 0.9 (10) |
N2—Cu1—N4—C13 | −179.8 (5) | Cu1—N3—C12—C11 | −177.6 (5) |
N3—Cu1—N4—C13 | 6.4 (5) | C8—N3—C12—C13 | 179.5 (7) |
O3—Cu1—N4—C13 | −83.3 (5) | Cu1—N3—C12—C13 | 1.0 (7) |
N2—Cu1—N4—O2 | −9.3 (5) | C10—C11—C12—N3 | −1.1 (11) |
N3—Cu1—N4—O2 | 176.9 (5) | C10—C11—C12—C13 | −179.6 (7) |
O3—Cu1—N4—O2 | 87.2 (5) | O2—N4—C13—C12 | −178.6 (5) |
C5—N1—C1—C2 | −0.1 (11) | Cu1—N4—C13—C12 | −7.5 (8) |
Cu1—N1—C1—C2 | −179.9 (6) | O2—N4—C13—C14 | 3.6 (10) |
N1—C1—C2—C3 | −0.4 (13) | Cu1—N4—C13—C14 | 174.7 (6) |
C1—C2—C3—C4 | 1.1 (12) | N3—C12—C13—N4 | 4.1 (9) |
C2—C3—C4—C5 | −1.4 (10) | C11—C12—C13—N4 | −177.4 (6) |
C3—C4—C5—N1 | 1.0 (8) | N3—C12—C13—C14 | −178.3 (7) |
C3—C4—C5—C6 | −179.7 (6) | C11—C12—C13—C14 | 0.3 (12) |
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2 | 0.82 | 1.63 | 2.421 (7) | 163 |
O3—H3C···O2i | 0.85 | 1.92 | 2.757 (6) | 170 |
O3—H3D···O8i | 0.85 | 1.82 | 2.658 (8) | 170 |
O8—H8C···O6ii | 0.85 | 1.86 | 2.660 (7) | 157 |
O8—H8D···O4iii | 0.85 | 2.11 | 2.862 (7) | 148 |
Symmetry codes: (i) x+1, y, z; (ii) x, y, z+1; (iii) x−1, y, z+1. |
Experimental details
Crystal data | |
Chemical formula | [Cu(C7H7N2O)(C7H8N2O)(H2O)]ClO4·H2O |
Mr | 470.32 |
Crystal system, space group | Monoclinic, Pc |
Temperature (K) | 298 |
a, b, c (Å) | 6.3526 (7), 15.7199 (14), 9.8235 (9) |
β (°) | 101.235 (1) |
V (Å3) | 962.20 (16) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 1.32 |
Crystal size (mm) | 0.45 × 0.40 × 0.39 |
Data collection | |
Diffractometer | Siemens SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.587, 0.626 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 4732, 2284, 2062 |
Rint | 0.031 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.037, 0.096, 1.00 |
No. of reflections | 2284 |
No. of parameters | 292 |
No. of restraints | 2 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.31, −0.36 |
Absolute structure | Flack (1983) |
Absolute structure parameter | 0.00 (2) |
Computer programs: SMART (Siemens, 1996), SAINT (Siemens, 1996), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008), Mercury (Macrae et al., 2006).
D—H···A | D—H | H···A | D···A | D—H···A |
O1—H1···O2 | 0.82 | 1.63 | 2.421 (7) | 162.8 |
O3—H3C···O2i | 0.85 | 1.92 | 2.757 (6) | 170.3 |
O3—H3D···O8i | 0.85 | 1.82 | 2.658 (8) | 169.5 |
O8—H8C···O6ii | 0.85 | 1.86 | 2.660 (7) | 157.3 |
O8—H8D···O4iii | 0.85 | 2.11 | 2.862 (7) | 148.2 |
Symmetry codes: (i) x+1, y, z; (ii) x, y, z+1; (iii) x−1, y, z+1. |
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.
There is a new interest in the coordination chemistry of oximes (Davidson et al., 2007; Pavlishchuk et al., 2003; Chaudhuri, 2003). 2-pyridyl oximes are a subclass of oximes whose anions are versatile ligands for a variety of research objectives and have been key ligands in several areas of molecular magnetism, including single-molecule and single-chain magnets (Clerac et al., 2002).
In the title complex (Fig. 1) the Cu2+ center is five-coordinated by N atoms from two 1-(pyridin-2-yl)ethanone oxime ligands (one of them is deprotonated) and one water molecule. The two 1-(pyridin-2-yl)ethanone oxime ligands are coordinated to copper to form two five-membered CuC2N2 rings and a strong intramolecular hydrogen bond exists between the OH group and the negatively charged oxygen of the other ligand which is shorter than reported in the literature (Qiu et al., 2011; Wu et al. 2008). The copper atom adopts a distorted 4+1 square-pyramidal coordination mode with the distortion parameter being 0.005, which is smaller than the values reported in the literature (Qiu et al., 2011; Wu et al., 2008). Another water molecule and the perchlorate anion are not coordinated but they take part in the formation of H-bonds (Table 1). The perclorate O atoms are disordered between two orientations around the central Cl atom with the occupancies 0.42 (2) (O4/O7) and 0.58 (2) (O4A/O7A).