metal-organic compounds
Bis[4-(4-chlorobenzoyl)-3-methyl-1-phenyl-1H-pyrazol-5-olato-κ2O,O′]bis(methanol-κO)nickel(II)
aCollege of Chemistry, Tianjin Normal University, Tianjin 300387, People's Republic of China
*Correspondence e-mail: zxin_tj@126.com
The molecular structure of the neutral mononuclear title complex, [Ni(C17H12ClN2O2)2(CH3OH)2], is centrosymmetric. The NiII atom, which is located on an inversion center, is in a distorted octahedral coordination, defined by four O atoms from two ligands as well as two O atoms from two methanol molecules. Intermolecular O—H⋯N hydrogen bonds between the hydroxy group of methanol and a pyrazole N atom link the molecules, forming a two-dimensional network parallel to (100).
Related literature
For general background to Schiff base compounds in coordination chemistry, see: Harrop et al. (2003); Yu et al. (1993); Wu et al. (1993). For the antibacterial properties of derived from 4-acyl-5-pyrazolones and their metal complexes, see: Li et al. (1997, 2004).
Experimental
Crystal data
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Refinement
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Data collection: SMART (Bruker, 1999); cell SAINT (Bruker, 1999); 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/S1600536810038973/bh2312sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536810038973/bh2312Isup2.hkl
A mixture of Ni(OAc)2.4H2O (24.8 mg, 0.10 mmol), 4(Z)-4-((4-chlorophenyl)(hydroxy)methylene)-3-methyl-1-phenyl-1H-pyrazol-5(4H)-one (62.6 mg, 0.20 mmol) and methanol (12 ml) was heated at 433 K for 2 days in a sealed Teflon-lined stainless steel vessel (20 mL) under autogenous pressure. After the reaction system was slowly cooled down to the room temperature, it was placed to stand at room temperature for a period of four weeks, affording green block crystals in 60% yield.
Although all H atoms were visible in difference maps, they were placed in geometrically calculated positions, with C—H distances in the range 0.93–0.96 Å, and O—H = 0.85 Å. Isotropic displacement parameters were calculated as Uiso(H)=1.2 or 1.5Ueq(carrier atom).
In recent years, Schiff base complexes with metals have generated a wide interest because they possess a large spectrum of biological, pharmaceutical and catalytic properties, such as antitumor and antioxidative activities, as well as the inhibition of lipid peroxidation, among others (Harrop et al., 2003; Yu et al., 1993; Wu et al., 1993). The β-ketoamine ligand with organic chlorine, based on a pyrazolone derivative.
derived from 4-acyl-5-pyrazolones and their metal complexes have also been widely studied for their high antibacterial activity (Li et al., 1997, 2004). In this paper, we report the synthesis and of the title compound, (I), containing aThe molecular structure of (I) reveals a neutral centrosymmetric mononuclear complex, with the
comprising a half molecule (Fig. 1). The distorted octahedral NiII center, which locates on a crystallographic inversion center, is coordinated to four O donors from a couple of ligands, and two O atoms from two methanol molecules. The equatorial Ni—O bond lengths are comparable with an average value of 2.0345 (6) Å, which are significantly shorter than that of the axial Ni—O distance of 2.0651 (16) Å. The cis bond angles around the NiII center range from 88.47 (7) to 91.53 (7)°. Intermolecular hydrogen bonds (Table 1) link the molecules together, forming a two-dimensional network (Fig. 2).For general background to Schiff base compounds in coordination chemistry, see: Harrop et al. (2003); Yu et al. (1993); Wu et al. (1993). For the antibacterial properties of
derived from 4-acyl-5-pyrazolones and their metal complexes, see: Li et al. (1997, 2004).Data collection: SMART (Bruker, 1999); cell
SAINT (Bruker, 1999); data reduction: SAINT (Bruker, 1999); 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).[Ni(C17H12ClN2O2)2(CH4O)2] | F(000) = 772 |
Mr = 746.27 | Dx = 1.416 Mg m−3 |
Monoclinic, P21/c | Mo Kα radiation, λ = 0.71073 Å |
Hall symbol: -P 2ybc | Cell parameters from 3041 reflections |
a = 11.8398 (7) Å | θ = 2.4–25.4° |
b = 12.3162 (7) Å | µ = 0.76 mm−1 |
c = 13.2104 (8) Å | T = 296 K |
β = 114.706 (1)° | Block, green |
V = 1750.03 (18) Å3 | 0.24 × 0.22 × 0.18 mm |
Z = 2 |
Bruker SMART CCD area-detector diffractometer | 3089 independent reflections |
Radiation source: fine-focus sealed tube | 2534 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.021 |
φ and ω scans | θmax = 25.0°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | h = −14→8 |
Tmin = 0.834, Tmax = 0.872 | k = −14→14 |
8808 measured reflections | l = −15→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)] = 0.034 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.094 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0466P)2 + 0.7427P] where P = (Fo2 + 2Fc2)/3 |
3089 reflections | (Δ/σ)max < 0.001 |
225 parameters | Δρmax = 0.37 e Å−3 |
0 restraints | Δρmin = −0.34 e Å−3 |
0 constraints |
[Ni(C17H12ClN2O2)2(CH4O)2] | V = 1750.03 (18) Å3 |
Mr = 746.27 | Z = 2 |
Monoclinic, P21/c | Mo Kα radiation |
a = 11.8398 (7) Å | µ = 0.76 mm−1 |
b = 12.3162 (7) Å | T = 296 K |
c = 13.2104 (8) Å | 0.24 × 0.22 × 0.18 mm |
β = 114.706 (1)° |
Bruker SMART CCD area-detector diffractometer | 3089 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 1999) | 2534 reflections with I > 2σ(I) |
Tmin = 0.834, Tmax = 0.872 | Rint = 0.021 |
8808 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | 0 restraints |
wR(F2) = 0.094 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.37 e Å−3 |
3089 reflections | Δρmin = −0.34 e Å−3 |
225 parameters |
x | y | z | Uiso*/Ueq | ||
Ni1 | 0.5000 | 0.0000 | 0.0000 | 0.03539 (14) | |
Cl1 | 0.04928 (8) | 0.55881 (7) | −0.33203 (7) | 0.0790 (3) | |
O1 | 0.39759 (15) | 0.13217 (12) | −0.07861 (12) | 0.0421 (4) | |
O2 | 0.61693 (14) | 0.09579 (12) | 0.12531 (12) | 0.0423 (4) | |
O3 | 0.39208 (16) | −0.01739 (13) | 0.08784 (14) | 0.0476 (4) | |
H3A | 0.3970 | −0.0784 | 0.1196 | 0.071* | |
C1 | 0.1856 (2) | 0.2801 (2) | −0.1767 (2) | 0.0613 (7) | |
H1 | 0.1567 | 0.2100 | −0.1765 | 0.074* | |
C2 | 0.1060 (3) | 0.3578 (2) | −0.2451 (3) | 0.0667 (8) | |
H2 | 0.0234 | 0.3406 | −0.2893 | 0.080* | |
C3 | 0.1491 (3) | 0.4595 (2) | −0.2474 (2) | 0.0529 (6) | |
C4 | 0.2709 (3) | 0.4855 (2) | −0.1845 (2) | 0.0609 (8) | |
H4 | 0.3006 | 0.5545 | −0.1887 | 0.073* | |
C5 | 0.3491 (2) | 0.4082 (2) | −0.1151 (2) | 0.0553 (7) | |
H5 | 0.4317 | 0.4258 | −0.0716 | 0.066* | |
C6 | 0.3072 (2) | 0.30524 (18) | −0.10879 (18) | 0.0407 (5) | |
C7 | 0.3925 (2) | 0.22122 (17) | −0.03395 (18) | 0.0379 (5) | |
C8 | 0.4653 (2) | 0.24382 (18) | 0.08010 (18) | 0.0403 (5) | |
C9 | 0.4556 (2) | 0.32600 (19) | 0.1533 (2) | 0.0457 (6) | |
N2 | 0.54567 (19) | 0.31717 (16) | 0.25322 (17) | 0.0483 (5) | |
N1 | 0.61951 (18) | 0.22984 (15) | 0.24962 (15) | 0.0427 (5) | |
C11 | 0.5709 (2) | 0.17991 (17) | 0.14723 (18) | 0.0376 (5) | |
C10 | 0.3568 (3) | 0.4093 (2) | 0.1350 (2) | 0.0698 (9) | |
H10A | 0.3632 | 0.4354 | 0.2056 | 0.105* | |
H10B | 0.2764 | 0.3771 | 0.0947 | 0.105* | |
H10C | 0.3674 | 0.4687 | 0.0928 | 0.105* | |
C12 | 0.7225 (2) | 0.19863 (18) | 0.34771 (19) | 0.0429 (6) | |
C13 | 0.7201 (3) | 0.2167 (2) | 0.4506 (2) | 0.0538 (7) | |
H13 | 0.6501 | 0.2468 | 0.4548 | 0.065* | |
C14 | 0.8222 (3) | 0.1898 (2) | 0.5459 (2) | 0.0695 (9) | |
H14 | 0.8211 | 0.2023 | 0.6149 | 0.083* | |
C15 | 0.9255 (3) | 0.1449 (3) | 0.5412 (2) | 0.0766 (10) | |
H15 | 0.9942 | 0.1273 | 0.6063 | 0.092* | |
C16 | 0.9266 (3) | 0.1260 (3) | 0.4383 (3) | 0.0714 (9) | |
H16 | 0.9963 | 0.0949 | 0.4345 | 0.086* | |
C17 | 0.8256 (2) | 0.1529 (2) | 0.3416 (2) | 0.0543 (7) | |
H17 | 0.8270 | 0.1402 | 0.2727 | 0.065* | |
C20 | 0.2607 (3) | −0.0031 (2) | 0.0339 (3) | 0.0652 (8) | |
H20A | 0.2394 | 0.0676 | 0.0512 | 0.098* | |
H20B | 0.2207 | −0.0576 | 0.0595 | 0.098* | |
H20C | 0.2335 | −0.0097 | −0.0452 | 0.098* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Ni1 | 0.0489 (3) | 0.0260 (2) | 0.0311 (2) | 0.00240 (17) | 0.01650 (18) | −0.00093 (16) |
Cl1 | 0.0751 (5) | 0.0799 (6) | 0.0691 (5) | 0.0358 (4) | 0.0176 (4) | 0.0205 (4) |
O1 | 0.0575 (10) | 0.0310 (8) | 0.0355 (8) | 0.0043 (7) | 0.0170 (7) | −0.0009 (7) |
O2 | 0.0486 (9) | 0.0340 (8) | 0.0383 (9) | 0.0065 (7) | 0.0124 (7) | −0.0067 (7) |
O3 | 0.0580 (11) | 0.0439 (10) | 0.0459 (10) | 0.0027 (8) | 0.0266 (8) | 0.0103 (7) |
C1 | 0.0505 (16) | 0.0468 (16) | 0.0721 (19) | −0.0082 (12) | 0.0114 (14) | 0.0034 (13) |
C2 | 0.0428 (15) | 0.067 (2) | 0.0699 (19) | −0.0032 (13) | 0.0034 (14) | 0.0038 (15) |
C3 | 0.0528 (16) | 0.0539 (16) | 0.0483 (15) | 0.0150 (13) | 0.0173 (13) | 0.0065 (12) |
C4 | 0.0630 (18) | 0.0404 (15) | 0.0701 (19) | 0.0015 (12) | 0.0187 (15) | 0.0158 (13) |
C5 | 0.0474 (15) | 0.0422 (14) | 0.0627 (17) | −0.0024 (12) | 0.0096 (13) | 0.0075 (12) |
C6 | 0.0470 (14) | 0.0345 (12) | 0.0400 (13) | 0.0002 (10) | 0.0175 (11) | −0.0025 (10) |
C7 | 0.0440 (13) | 0.0309 (12) | 0.0397 (12) | −0.0017 (9) | 0.0186 (10) | 0.0005 (9) |
C8 | 0.0500 (14) | 0.0307 (12) | 0.0375 (12) | 0.0033 (10) | 0.0155 (11) | −0.0027 (10) |
C9 | 0.0525 (15) | 0.0374 (13) | 0.0437 (13) | 0.0047 (11) | 0.0165 (12) | −0.0054 (11) |
N2 | 0.0574 (13) | 0.0392 (11) | 0.0458 (12) | 0.0072 (9) | 0.0191 (10) | −0.0108 (9) |
N1 | 0.0508 (12) | 0.0353 (10) | 0.0380 (10) | 0.0050 (9) | 0.0147 (9) | −0.0063 (8) |
C11 | 0.0464 (13) | 0.0319 (11) | 0.0348 (12) | −0.0017 (10) | 0.0174 (10) | −0.0035 (9) |
C10 | 0.080 (2) | 0.0624 (18) | 0.0577 (18) | 0.0262 (16) | 0.0197 (16) | −0.0109 (14) |
C12 | 0.0522 (14) | 0.0317 (12) | 0.0372 (12) | −0.0025 (10) | 0.0112 (11) | −0.0012 (10) |
C13 | 0.0681 (18) | 0.0466 (15) | 0.0426 (14) | 0.0009 (13) | 0.0192 (13) | −0.0045 (11) |
C14 | 0.099 (2) | 0.0566 (18) | 0.0400 (15) | 0.0049 (17) | 0.0166 (16) | −0.0028 (13) |
C15 | 0.084 (2) | 0.065 (2) | 0.0479 (17) | 0.0118 (17) | −0.0044 (16) | −0.0003 (14) |
C16 | 0.0635 (19) | 0.072 (2) | 0.0637 (19) | 0.0156 (16) | 0.0115 (15) | 0.0039 (16) |
C17 | 0.0572 (16) | 0.0520 (16) | 0.0481 (15) | 0.0063 (13) | 0.0166 (13) | 0.0006 (12) |
C20 | 0.0612 (19) | 0.0661 (19) | 0.079 (2) | 0.0106 (14) | 0.0405 (16) | 0.0183 (15) |
Ni1—O2 | 2.0330 (15) | C8—C9 | 1.438 (3) |
Ni1—O2i | 2.0330 (15) | C9—N2 | 1.309 (3) |
Ni1—O1 | 2.0361 (15) | C9—C10 | 1.497 (3) |
Ni1—O1i | 2.0361 (15) | N2—N1 | 1.399 (3) |
Ni1—O3i | 2.0651 (16) | N1—C11 | 1.374 (3) |
Ni1—O3 | 2.0651 (16) | N1—C12 | 1.411 (3) |
Cl1—C3 | 1.744 (3) | C10—H10A | 0.9600 |
O1—C7 | 1.259 (3) | C10—H10B | 0.9600 |
O2—C11 | 1.259 (3) | C10—H10C | 0.9600 |
O3—C20 | 1.425 (3) | C12—C17 | 1.378 (3) |
O3—H3A | 0.8505 | C12—C13 | 1.389 (3) |
C1—C6 | 1.376 (3) | C13—C14 | 1.373 (4) |
C1—C2 | 1.382 (4) | C13—H13 | 0.9300 |
C1—H1 | 0.9300 | C14—C15 | 1.367 (4) |
C2—C3 | 1.357 (4) | C14—H14 | 0.9300 |
C2—H2 | 0.9300 | C15—C16 | 1.385 (4) |
C3—C4 | 1.368 (4) | C15—H15 | 0.9300 |
C4—C5 | 1.377 (4) | C16—C17 | 1.376 (4) |
C4—H4 | 0.9300 | C16—H16 | 0.9300 |
C5—C6 | 1.376 (3) | C17—H17 | 0.9300 |
C5—H5 | 0.9300 | C20—H20A | 0.9600 |
C6—C7 | 1.494 (3) | C20—H20B | 0.9600 |
C7—C8 | 1.416 (3) | C20—H20C | 0.9600 |
C8—C11 | 1.429 (3) | ||
O2—Ni1—O2i | 180.00 (10) | C7—C8—C9 | 132.1 (2) |
O2—Ni1—O1 | 90.52 (6) | C11—C8—C9 | 105.41 (19) |
O2i—Ni1—O1 | 89.48 (6) | N2—C9—C8 | 111.0 (2) |
O2—Ni1—O1i | 89.48 (6) | N2—C9—C10 | 118.2 (2) |
O2i—Ni1—O1i | 90.52 (6) | C8—C9—C10 | 130.6 (2) |
O1—Ni1—O1i | 180.00 (5) | C9—N2—N1 | 106.68 (18) |
O2—Ni1—O3i | 91.53 (7) | C11—N1—N2 | 111.53 (18) |
O2i—Ni1—O3i | 88.47 (7) | C11—N1—C12 | 128.86 (19) |
O1—Ni1—O3i | 90.39 (6) | N2—N1—C12 | 119.36 (18) |
O1i—Ni1—O3i | 89.61 (6) | O2—C11—N1 | 123.5 (2) |
O2—Ni1—O3 | 88.47 (7) | O2—C11—C8 | 131.4 (2) |
O2i—Ni1—O3 | 91.53 (7) | N1—C11—C8 | 105.20 (18) |
O1—Ni1—O3 | 89.61 (6) | C9—C10—H10A | 109.5 |
O1i—Ni1—O3 | 90.39 (6) | C9—C10—H10B | 109.5 |
O3i—Ni1—O3 | 180.00 (6) | H10A—C10—H10B | 109.5 |
C7—O1—Ni1 | 126.33 (14) | C9—C10—H10C | 109.5 |
C11—O2—Ni1 | 116.87 (14) | H10A—C10—H10C | 109.5 |
C20—O3—Ni1 | 120.58 (16) | H10B—C10—H10C | 109.5 |
C20—O3—H3A | 101.0 | C17—C12—C13 | 120.3 (2) |
Ni1—O3—H3A | 116.0 | C17—C12—N1 | 120.3 (2) |
C6—C1—C2 | 120.9 (3) | C13—C12—N1 | 119.4 (2) |
C6—C1—H1 | 119.6 | C14—C13—C12 | 119.2 (3) |
C2—C1—H1 | 119.6 | C14—C13—H13 | 120.4 |
C3—C2—C1 | 119.5 (3) | C12—C13—H13 | 120.4 |
C3—C2—H2 | 120.2 | C15—C14—C13 | 121.1 (3) |
C1—C2—H2 | 120.2 | C15—C14—H14 | 119.4 |
C2—C3—C4 | 120.9 (2) | C13—C14—H14 | 119.4 |
C2—C3—Cl1 | 120.0 (2) | C14—C15—C16 | 119.3 (3) |
C4—C3—Cl1 | 119.0 (2) | C14—C15—H15 | 120.4 |
C3—C4—C5 | 119.1 (2) | C16—C15—H15 | 120.4 |
C3—C4—H4 | 120.4 | C17—C16—C15 | 120.6 (3) |
C5—C4—H4 | 120.4 | C17—C16—H16 | 119.7 |
C6—C5—C4 | 121.3 (2) | C15—C16—H16 | 119.7 |
C6—C5—H5 | 119.4 | C16—C17—C12 | 119.4 (3) |
C4—C5—H5 | 119.4 | C16—C17—H17 | 120.3 |
C5—C6—C1 | 118.2 (2) | C12—C17—H17 | 120.3 |
C5—C6—C7 | 121.1 (2) | O3—C20—H20A | 109.5 |
C1—C6—C7 | 120.6 (2) | O3—C20—H20B | 109.5 |
O1—C7—C8 | 122.9 (2) | H20A—C20—H20B | 109.5 |
O1—C7—C6 | 116.40 (19) | O3—C20—H20C | 109.5 |
C8—C7—C6 | 120.69 (19) | H20A—C20—H20C | 109.5 |
C7—C8—C11 | 122.5 (2) | H20B—C20—H20C | 109.5 |
O2—Ni1—O1—C7 | −22.71 (18) | C6—C7—C8—C9 | 18.3 (4) |
O2i—Ni1—O1—C7 | 157.29 (18) | C7—C8—C9—N2 | −179.0 (2) |
O3i—Ni1—O1—C7 | −114.24 (18) | C11—C8—C9—N2 | 1.7 (3) |
O3—Ni1—O1—C7 | 65.76 (18) | C7—C8—C9—C10 | 6.5 (5) |
O1—Ni1—O2—C11 | 30.69 (16) | C11—C8—C9—C10 | −172.8 (3) |
O1i—Ni1—O2—C11 | −149.31 (16) | C8—C9—N2—N1 | 0.8 (3) |
O3i—Ni1—O2—C11 | 121.10 (16) | C10—C9—N2—N1 | 176.1 (2) |
O3—Ni1—O2—C11 | −58.90 (16) | C9—N2—N1—C11 | −3.2 (3) |
O2—Ni1—O3—C20 | 132.23 (18) | C9—N2—N1—C12 | −177.8 (2) |
O2i—Ni1—O3—C20 | −47.77 (18) | Ni1—O2—C11—N1 | 155.00 (18) |
O1—Ni1—O3—C20 | 41.70 (18) | Ni1—O2—C11—C8 | −25.3 (3) |
O1i—Ni1—O3—C20 | −138.30 (18) | N2—N1—C11—O2 | −176.1 (2) |
C6—C1—C2—C3 | 1.6 (5) | C12—N1—C11—O2 | −2.0 (4) |
C1—C2—C3—C4 | 1.3 (5) | N2—N1—C11—C8 | 4.1 (3) |
C1—C2—C3—Cl1 | −179.2 (2) | C12—N1—C11—C8 | 178.1 (2) |
C2—C3—C4—C5 | −2.5 (5) | C7—C8—C11—O2 | −2.6 (4) |
Cl1—C3—C4—C5 | 178.1 (2) | C9—C8—C11—O2 | 176.8 (2) |
C3—C4—C5—C6 | 0.7 (5) | C7—C8—C11—N1 | 177.1 (2) |
C4—C5—C6—C1 | 2.1 (4) | C9—C8—C11—N1 | −3.4 (3) |
C4—C5—C6—C7 | 179.5 (3) | C11—N1—C12—C17 | 36.5 (4) |
C2—C1—C6—C5 | −3.3 (4) | N2—N1—C12—C17 | −149.9 (2) |
C2—C1—C6—C7 | 179.3 (3) | C11—N1—C12—C13 | −145.0 (2) |
Ni1—O1—C7—C8 | 3.6 (3) | N2—N1—C12—C13 | 28.7 (3) |
Ni1—O1—C7—C6 | −178.18 (14) | C17—C12—C13—C14 | 0.8 (4) |
C5—C6—C7—O1 | −126.5 (2) | N1—C12—C13—C14 | −177.7 (2) |
C1—C6—C7—O1 | 50.9 (3) | C12—C13—C14—C15 | −0.4 (4) |
C5—C6—C7—C8 | 51.8 (3) | C13—C14—C15—C16 | −0.3 (5) |
C1—C6—C7—C8 | −130.8 (3) | C14—C15—C16—C17 | 0.6 (5) |
O1—C7—C8—C11 | 15.7 (4) | C15—C16—C17—C12 | −0.2 (5) |
C6—C7—C8—C11 | −162.5 (2) | C13—C12—C17—C16 | −0.5 (4) |
O1—C7—C8—C9 | −163.6 (2) | N1—C12—C17—C16 | 178.0 (3) |
Symmetry code: (i) −x+1, −y, −z. |
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3A···N2ii | 0.85 | 2.00 | 2.795 (2) | 156 |
Symmetry code: (ii) −x+1, y−1/2, −z+1/2. |
Experimental details
Crystal data | |
Chemical formula | [Ni(C17H12ClN2O2)2(CH4O)2] |
Mr | 746.27 |
Crystal system, space group | Monoclinic, P21/c |
Temperature (K) | 296 |
a, b, c (Å) | 11.8398 (7), 12.3162 (7), 13.2104 (8) |
β (°) | 114.706 (1) |
V (Å3) | 1750.03 (18) |
Z | 2 |
Radiation type | Mo Kα |
µ (mm−1) | 0.76 |
Crystal size (mm) | 0.24 × 0.22 × 0.18 |
Data collection | |
Diffractometer | Bruker SMART CCD area-detector |
Absorption correction | Multi-scan (SADABS; Bruker, 1999) |
Tmin, Tmax | 0.834, 0.872 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8808, 3089, 2534 |
Rint | 0.021 |
(sin θ/λ)max (Å−1) | 0.595 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.094, 1.03 |
No. of reflections | 3089 |
No. of parameters | 225 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.37, −0.34 |
Computer programs: SMART (Bruker, 1999), SAINT (Bruker, 1999), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
O3—H3A···N2i | 0.85 | 2.00 | 2.795 (2) | 156.0 |
Symmetry code: (i) −x+1, y−1/2, −z+1/2. |
Acknowledgements
This work was supported by the National Natural Science Foundation of China (No. 20771083).
References
Bruker (1999). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Harrop, T. C., Olmstead, M. M. & Mascharak, P. K. (2003). Chem. Commun. pp. 410–411. Web of Science CSD CrossRef Google Scholar
Li, J.-Z., Jiang, L. & An, Y.-M. (2004). Chin. J. Appl. Chem. 21, 150–153. CAS Google Scholar
Li, J.-Z., Yu, W.-J. & Du, X.-Y. (1997). Chin. J. Appl. Chem. 14, 98–100. CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Wu, J. G., Deng, R. W. & Chen, Z. N. (1993). Transition Met. Chem. 18, 23–26. CrossRef CAS Web of Science Google Scholar
Yu, S. Y. , Wang, S. X., Luo, Q. H., Wang, L. F, Peng, Z. R. & Gao, X. (1993). Polyhedron, 12, 1093–1096. CrossRef CAS Web of Science Google Scholar
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In recent years, Schiff base complexes with metals have generated a wide interest because they possess a large spectrum of biological, pharmaceutical and catalytic properties, such as antitumor and antioxidative activities, as well as the inhibition of lipid peroxidation, among others (Harrop et al., 2003; Yu et al., 1993; Wu et al., 1993). The Schiff bases derived from 4-acyl-5-pyrazolones and their metal complexes have also been widely studied for their high antibacterial activity (Li et al., 1997, 2004). In this paper, we report the synthesis and crystal structure of the title compound, (I), containing a β-ketoamine ligand with organic chlorine, based on a pyrazolone derivative.
The molecular structure of (I) reveals a neutral centrosymmetric mononuclear complex, with the asymmetric unit comprising a half molecule (Fig. 1). The distorted octahedral NiII center, which locates on a crystallographic inversion center, is coordinated to four O donors from a couple of ligands, and two O atoms from two methanol molecules. The equatorial Ni—O bond lengths are comparable with an average value of 2.0345 (6) Å, which are significantly shorter than that of the axial Ni—O distance of 2.0651 (16) Å. The cis bond angles around the NiII center range from 88.47 (7) to 91.53 (7)°. Intermolecular hydrogen bonds (Table 1) link the molecules together, forming a two-dimensional network (Fig. 2).