The title complex displays a slightly distorted square-planar coordination geometry. The crystal features 41-helical chains stabilized by N—H⋯O hydrogen bonding.
Keywords: crystal structure, acylhydrazone, hydrogen bonding, imidazole, nickel complex
Abstract
In the title complex, [Ni(C16H13ClN2O3)(C3H4N2)], the NiII ion is coordinated by two O atoms and one N atom derived from the dianionic N′-[(1E)-1-(5-chloro-2-hydroxyphenyl)ethylidene]-4-methoxybenzohydrazide ligand and one N atom from the imidazole molecule. The N2O2 donor set defines an approximate square-planar geometry. The dihedral angles between the imidazole ring and the fused six-membered and methoxybenzene rings are 17.78 (14) and 13.23 (16)°, respectively; the dihedral angle between the C6 rings is 6.63 (12)°. The most prominent feature of the molecular packing is the formation of 41-helical chains (along the c axis) mediated by imidazole-N—H⋯O(phenoxide) hydrogen bonding; these are linked by methyl-C—H⋯Cl interactions.
Structure description
Acylhydrazones, as a special kind of Schiff base, have been widely investigated because of their strong coordination ability (Singh et al., 1982 ▸; Salem, 1998 ▸; Yu et al., 2010 ▸) and flexible coordination modes involving the N and O donor atoms (Liu et al., 2005 ▸; Chang, 2011 ▸; Zheng et al., 2011 ▸). As has been widely reported in the literature, acylhydrazone complexes display various biological activities such as anti-microbial (Yang et al., 2020 ▸), anti-tubercular (Peng, 2011 ▸), anti-cancer (Morgan et al., 2003 ▸) and anti-oxidant (Chang et al., 2015 ▸). As an extension of work into the structural characterization of aroylhydrazone complexes, the title complex, [Ni(C16H13ClN2O3)(C3H4N2)], has been synthesized and its crystal structure determined.
The NiII ion in the title compound is coordinated by two O atoms and one N atom from the dianionic N′-[(1E)-1-(5-chloro-2-hydroxyphenyl)ethylidene]-4-methoxybenzohydrazide ligand and one N atom from the imidazole molecule. In this complex, the Ni atom is located in a slightly distorted square-planar environment (Fig. 1 ▸ and Table 1 ▸). The Ni—O bond lengths are systematically shorter than the Ni—N bonds, and the maximum deviation from the ideal square-planar geometry in terms of angles is found for O1—Ni1—N2 = 82.18 (7)°. The two benzene rings, C1–C6 (A) and C10–C15 (B), and the imidazole ring (C) make dihedral angles of 6.63 (12)° (A/B), 17.78 (14)° (A/C) and 13.23 (16)° (B/C).
Figure 1.
The molecular structure, showing the atom-numbering scheme. Displacement ellipsoids are drawn at the 50% probability level.
Table 1. Selected geometric parameters (Å, °).
| Ni1—O1 | 1.8995 (15) | Ni1—N2 | 1.9344 (17) |
| Ni1—O2 | 1.8820 (15) | Ni1—N3 | 1.9664 (18) |
| O1—Ni1—N2 | 82.18 (7) | O2—Ni1—N2 | 94.33 (7) |
| O1—Ni1—N3 | 90.33 (7) | O2—Ni1—N3 | 93.16 (7) |
| O2—Ni1—O1 | 173.63 (7) | N2—Ni1—N3 | 172.50 (8) |
The molecular packing is consolidated by imidazole-N—H⋯O(phenoxide) hydrogen bonding (Table 2 ▸) along the c axis, which leads to a 41 helical chain. The chains are connected by C—H⋯Cl interactions (Table 2 ▸) into a three-dimensional architecture; a view of the unit-cell contents is given in Fig. 2 ▸.
Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N4—H4⋯O2i | 0.92 (4) | 1.93 (4) | 2.818 (3) | 161 (3) |
| C8—H8A⋯Cl1ii | 0.96 | 2.86 | 3.700 (3) | 147 |
Symmetry codes: (i)
; (ii)
.
Figure 2.
A view in projection down the c axis of the unit-cell contents.
Synthesis and crystallization
The Schiff base ligand, N′-[(1E)-1-(5-chloro-2-hydroxyphenyl)ethylidene]-4-methoxybenzohydrazide (0.100 mmol, 0.0319 g), 1H-imidazole (0.100 mmol, 0.0068 g), Ni(NO3)2·6H2O (0.100 mmol, 0.0292 g), methanol (10 ml) and distilled water (5 ml) were mixed in a 50 ml flask. The mixture was stirred at room temperature for 1 h, the pH was adjusted with saturated sodium carbonate solution to about 8 followed by filtration. Red rectangular block-shaped crystals were obtained after about one month by evaporating the filtrate in air (yield 31%).
Refinement
Crystal data, data collection and structure refinement details are summarized in Table 3 ▸.
Table 3. Experimental details.
| Crystal data | |
| Chemical formula | [Ni(C16H13ClN2O3)(C3H4N2)] |
| M r | 443.52 |
| Crystal system, space group | Tetragonal, I41/a |
| Temperature (K) | 295 |
| a, c (Å) | 30.879 (4), 8.0750 (16) |
| V (Å3) | 7700 (3) |
| Z | 16 |
| Radiation type | Mo Kα |
| μ (mm−1) | 1.18 |
| Crystal size (mm) | 0.35 × 0.25 × 0.16 |
| Data collection | |
| Diffractometer | Bruker APEXII CCD area detector |
| Absorption correction | Multi-scan (SADABS; Bruker, 2003 ▸) |
| T min, T max | 0.735, 0.860 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 23938, 4924, 3431 |
| R int | 0.038 |
| (sin θ/λ)max (Å−1) | 0.678 |
| Refinement | |
| R[F 2 > 2σ(F 2)], wR(F 2), S | 0.038, 0.106, 1.00 |
| No. of reflections | 4924 |
| No. of parameters | 259 |
| H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
| Δρmax, Δρmin (e Å−3) | 0.79, −0.21 |
Supplementary Material
Crystal structure: contains datablock(s) I. DOI: 10.1107/S2414314622002954/tk4076sup1.cif
Structure factors: contains datablock(s) I. DOI: 10.1107/S2414314622002954/tk4076Isup2.hkl
CCDC reference: 2159183
Additional supporting information: crystallographic information; 3D view; checkCIF report
full crystallographic data
Crystal data
| [Ni(C16H13ClN2O3)(C3H4N2)] | Dx = 1.530 Mg m−3 |
| Mr = 443.52 | Mo Kα radiation, λ = 0.71073 Å |
| Tetragonal, I41/a | Cell parameters from 5154 reflections |
| a = 30.879 (4) Å | θ = 2.6–25.1° |
| c = 8.0750 (16) Å | µ = 1.18 mm−1 |
| V = 7700 (3) Å3 | T = 295 K |
| Z = 16 | Block, brown |
| F(000) = 3648 | 0.35 × 0.25 × 0.16 mm |
Data collection
| Bruker APEXII CCD area detector diffractometer | 3431 reflections with I > 2σ(I) |
| Graphite monochromator | Rint = 0.038 |
| phi and ω scans | θmax = 28.8°, θmin = 1.9° |
| Absorption correction: multi-scan (SADABS; Bruker, 2003) | h = −28→40 |
| Tmin = 0.735, Tmax = 0.860 | k = −41→39 |
| 23938 measured reflections | l = −10→10 |
| 4924 independent reflections |
Refinement
| Refinement on F2 | Primary atom site location: dual |
| Least-squares matrix: full | Hydrogen site location: mixed |
| R[F2 > 2σ(F2)] = 0.038 | H atoms treated by a mixture of independent and constrained refinement |
| wR(F2) = 0.106 | w = 1/[σ2(Fo2) + (0.0616P)2] where P = (Fo2 + 2Fc2)/3 |
| S = 1.00 | (Δ/σ)max = 0.001 |
| 4924 reflections | Δρmax = 0.79 e Å−3 |
| 259 parameters | Δρmin = −0.20 e Å−3 |
| 0 restraints |
Special details
| Geometry. All esds (except the esd in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell esds are taken into account individually in the estimation of esds in distances, angles and torsion angles; correlations between esds in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell esds is used for estimating esds involving l.s. planes. |
Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å2)
| x | y | z | Uiso*/Ueq | ||
| Ni1 | 0.67356 (2) | 0.70309 (2) | 0.69948 (3) | 0.03734 (10) | |
| Cl1 | 0.68036 (2) | 0.49257 (2) | 1.08616 (9) | 0.06233 (19) | |
| O1 | 0.71130 (5) | 0.74129 (5) | 0.5847 (2) | 0.0506 (4) | |
| O2 | 0.63727 (4) | 0.66083 (5) | 0.7940 (2) | 0.0468 (4) | |
| O3 | 0.86943 (7) | 0.82096 (6) | 0.1939 (3) | 0.0818 (6) | |
| N1 | 0.75900 (5) | 0.68423 (6) | 0.6093 (2) | 0.0444 (4) | |
| N2 | 0.72374 (5) | 0.66565 (5) | 0.6917 (2) | 0.0407 (4) | |
| N3 | 0.62734 (6) | 0.74687 (6) | 0.6931 (2) | 0.0469 (4) | |
| N4 | 0.59505 (7) | 0.80650 (7) | 0.6168 (3) | 0.0573 (5) | |
| H4 | 0.5865 (10) | 0.8318 (11) | 0.566 (4) | 0.100 (11)* | |
| C1 | 0.69302 (6) | 0.60618 (6) | 0.8443 (3) | 0.0395 (5) | |
| C2 | 0.70039 (8) | 0.56518 (7) | 0.9178 (3) | 0.0468 (5) | |
| H2 | 0.728018 | 0.553255 | 0.912614 | 0.056* | |
| C3 | 0.66852 (8) | 0.54265 (7) | 0.9955 (3) | 0.0471 (5) | |
| C4 | 0.62689 (8) | 0.55887 (7) | 1.0092 (3) | 0.0494 (5) | |
| H4A | 0.605335 | 0.543496 | 1.064097 | 0.059* | |
| C5 | 0.61852 (7) | 0.59863 (7) | 0.9385 (3) | 0.0478 (5) | |
| H5 | 0.590670 | 0.609875 | 0.946780 | 0.057* | |
| C6 | 0.64995 (7) | 0.62290 (7) | 0.8548 (3) | 0.0406 (5) | |
| C7 | 0.72926 (7) | 0.62824 (7) | 0.7636 (3) | 0.0418 (5) | |
| C8 | 0.77365 (8) | 0.60794 (9) | 0.7632 (4) | 0.0637 (7) | |
| H8A | 0.772858 | 0.581362 | 0.701572 | 0.095* | |
| H8B | 0.782430 | 0.602062 | 0.875021 | 0.095* | |
| H8C | 0.793945 | 0.627451 | 0.712772 | 0.095* | |
| C9 | 0.74864 (7) | 0.72329 (7) | 0.5599 (3) | 0.0430 (5) | |
| C10 | 0.78074 (7) | 0.74904 (7) | 0.4658 (3) | 0.0436 (5) | |
| C11 | 0.82214 (7) | 0.73375 (8) | 0.4304 (3) | 0.0512 (6) | |
| H11 | 0.830661 | 0.706668 | 0.468830 | 0.061* | |
| C12 | 0.85065 (8) | 0.75850 (8) | 0.3386 (3) | 0.0585 (6) | |
| H12 | 0.878025 | 0.747719 | 0.313970 | 0.070* | |
| C13 | 0.83883 (8) | 0.79913 (8) | 0.2832 (3) | 0.0544 (6) | |
| C14 | 0.79796 (8) | 0.81495 (8) | 0.3173 (3) | 0.0531 (6) | |
| H14 | 0.789633 | 0.842107 | 0.279077 | 0.064* | |
| C15 | 0.76968 (7) | 0.79008 (7) | 0.4085 (3) | 0.0487 (5) | |
| H15 | 0.742350 | 0.801047 | 0.432655 | 0.058* | |
| C16 | 0.85944 (10) | 0.86421 (8) | 0.1450 (4) | 0.0709 (8) | |
| H16A | 0.836204 | 0.863811 | 0.066026 | 0.106* | |
| H16B | 0.884538 | 0.877267 | 0.095671 | 0.106* | |
| H16C | 0.850860 | 0.880669 | 0.240361 | 0.106* | |
| C17 | 0.58978 (7) | 0.75137 (7) | 0.7827 (3) | 0.0517 (6) | |
| H17 | 0.579704 | 0.732134 | 0.862486 | 0.062* | |
| C18 | 0.56989 (8) | 0.78836 (8) | 0.7357 (4) | 0.0587 (6) | |
| H18 | 0.543965 | 0.799272 | 0.776902 | 0.070* | |
| C19 | 0.62897 (8) | 0.78101 (7) | 0.5950 (3) | 0.0527 (6) | |
| H19 | 0.651171 | 0.786450 | 0.519968 | 0.063* |
Atomic displacement parameters (Å2)
| U11 | U22 | U33 | U12 | U13 | U23 | |
| Ni1 | 0.03354 (15) | 0.03200 (15) | 0.04649 (18) | 0.00236 (10) | −0.00014 (11) | −0.00031 (11) |
| Cl1 | 0.0762 (4) | 0.0409 (3) | 0.0699 (4) | 0.0076 (3) | −0.0036 (3) | 0.0093 (3) |
| O1 | 0.0434 (8) | 0.0419 (8) | 0.0666 (11) | 0.0041 (7) | 0.0079 (7) | 0.0037 (7) |
| O2 | 0.0370 (8) | 0.0403 (8) | 0.0633 (10) | 0.0022 (6) | −0.0021 (7) | 0.0089 (7) |
| O3 | 0.0736 (13) | 0.0594 (11) | 0.1126 (18) | −0.0087 (10) | 0.0426 (12) | 0.0024 (11) |
| N1 | 0.0367 (9) | 0.0453 (10) | 0.0512 (11) | −0.0002 (8) | −0.0009 (8) | −0.0029 (8) |
| N2 | 0.0367 (9) | 0.0404 (9) | 0.0451 (10) | −0.0002 (7) | −0.0013 (7) | −0.0040 (8) |
| N3 | 0.0440 (10) | 0.0410 (10) | 0.0557 (12) | 0.0050 (8) | 0.0017 (8) | 0.0010 (8) |
| N4 | 0.0515 (12) | 0.0400 (11) | 0.0804 (16) | 0.0071 (9) | 0.0033 (11) | 0.0071 (10) |
| C1 | 0.0424 (11) | 0.0376 (11) | 0.0387 (11) | 0.0045 (9) | −0.0046 (9) | −0.0029 (9) |
| C2 | 0.0489 (12) | 0.0433 (12) | 0.0484 (13) | 0.0082 (10) | −0.0056 (10) | −0.0024 (10) |
| C3 | 0.0566 (13) | 0.0373 (11) | 0.0473 (12) | 0.0045 (10) | −0.0057 (10) | −0.0007 (9) |
| C4 | 0.0540 (13) | 0.0441 (12) | 0.0502 (13) | −0.0020 (10) | −0.0010 (11) | 0.0026 (10) |
| C5 | 0.0412 (12) | 0.0456 (12) | 0.0565 (15) | 0.0023 (9) | −0.0021 (10) | 0.0009 (10) |
| C6 | 0.0405 (11) | 0.0393 (11) | 0.0420 (12) | 0.0018 (9) | −0.0058 (9) | −0.0013 (9) |
| C7 | 0.0400 (11) | 0.0418 (11) | 0.0435 (12) | 0.0069 (9) | −0.0056 (9) | −0.0027 (9) |
| C8 | 0.0442 (13) | 0.0688 (16) | 0.0781 (19) | 0.0146 (12) | 0.0061 (12) | 0.0174 (14) |
| C9 | 0.0408 (11) | 0.0439 (12) | 0.0445 (13) | −0.0017 (9) | −0.0017 (9) | −0.0078 (9) |
| C10 | 0.0429 (12) | 0.0463 (12) | 0.0417 (12) | −0.0041 (9) | −0.0024 (9) | −0.0076 (9) |
| C11 | 0.0454 (12) | 0.0461 (13) | 0.0620 (15) | −0.0011 (10) | 0.0004 (11) | −0.0066 (11) |
| C12 | 0.0408 (12) | 0.0607 (15) | 0.0741 (18) | 0.0006 (11) | 0.0106 (12) | −0.0041 (13) |
| C13 | 0.0504 (13) | 0.0525 (14) | 0.0602 (16) | −0.0101 (10) | 0.0098 (11) | −0.0101 (11) |
| C14 | 0.0566 (14) | 0.0463 (13) | 0.0566 (15) | −0.0028 (11) | 0.0043 (11) | −0.0021 (11) |
| C15 | 0.0422 (12) | 0.0495 (13) | 0.0545 (14) | 0.0021 (10) | 0.0060 (10) | −0.0012 (10) |
| C16 | 0.0801 (19) | 0.0578 (16) | 0.0749 (19) | −0.0166 (14) | 0.0204 (15) | −0.0005 (14) |
| C17 | 0.0507 (13) | 0.0438 (12) | 0.0604 (15) | 0.0005 (10) | 0.0077 (11) | 0.0029 (11) |
| C18 | 0.0496 (14) | 0.0459 (13) | 0.0805 (18) | 0.0100 (11) | 0.0115 (13) | −0.0003 (12) |
| C19 | 0.0485 (13) | 0.0432 (12) | 0.0665 (16) | 0.0074 (10) | 0.0089 (11) | 0.0090 (11) |
Geometric parameters (Å, º)
| Ni1—O1 | 1.8995 (15) | C5—H5 | 0.9300 |
| Ni1—O2 | 1.8820 (15) | C5—C6 | 1.400 (3) |
| Ni1—N2 | 1.9344 (17) | C7—C8 | 1.507 (3) |
| Ni1—N3 | 1.9664 (18) | C8—H8A | 0.9600 |
| Cl1—C3 | 1.750 (2) | C8—H8B | 0.9600 |
| O1—C9 | 1.296 (2) | C8—H8C | 0.9600 |
| O2—C6 | 1.329 (2) | C9—C10 | 1.481 (3) |
| O3—C13 | 1.367 (3) | C10—C11 | 1.392 (3) |
| O3—C16 | 1.426 (3) | C10—C15 | 1.392 (3) |
| N1—N2 | 1.399 (2) | C11—H11 | 0.9300 |
| N1—C9 | 1.310 (3) | C11—C12 | 1.381 (3) |
| N2—C7 | 1.304 (3) | C12—H12 | 0.9300 |
| N3—C17 | 1.374 (3) | C12—C13 | 1.381 (3) |
| N3—C19 | 1.320 (3) | C13—C14 | 1.381 (3) |
| N4—H4 | 0.92 (4) | C14—H14 | 0.9300 |
| N4—C18 | 1.356 (3) | C14—C15 | 1.376 (3) |
| N4—C19 | 1.322 (3) | C15—H15 | 0.9300 |
| C1—C2 | 1.417 (3) | C16—H16A | 0.9600 |
| C1—C6 | 1.429 (3) | C16—H16B | 0.9600 |
| C1—C7 | 1.463 (3) | C16—H16C | 0.9600 |
| C2—H2 | 0.9300 | C17—H17 | 0.9300 |
| C2—C3 | 1.359 (3) | C17—C18 | 1.351 (3) |
| C3—C4 | 1.384 (3) | C18—H18 | 0.9300 |
| C4—H4A | 0.9300 | C19—H19 | 0.9300 |
| C4—C5 | 1.378 (3) | ||
| O1—Ni1—N2 | 82.18 (7) | C7—C8—H8B | 109.5 |
| O1—Ni1—N3 | 90.33 (7) | C7—C8—H8C | 109.5 |
| O2—Ni1—O1 | 173.63 (7) | H8A—C8—H8B | 109.5 |
| O2—Ni1—N2 | 94.33 (7) | H8A—C8—H8C | 109.5 |
| O2—Ni1—N3 | 93.16 (7) | H8B—C8—H8C | 109.5 |
| N2—Ni1—N3 | 172.50 (8) | O1—C9—N1 | 124.4 (2) |
| C9—O1—Ni1 | 110.80 (13) | O1—C9—C10 | 116.41 (19) |
| C6—O2—Ni1 | 125.85 (13) | N1—C9—C10 | 119.18 (19) |
| C13—O3—C16 | 117.3 (2) | C11—C10—C9 | 122.5 (2) |
| C9—N1—N2 | 109.43 (17) | C15—C10—C9 | 119.69 (19) |
| N1—N2—Ni1 | 113.18 (12) | C15—C10—C11 | 117.8 (2) |
| C7—N2—Ni1 | 128.30 (15) | C10—C11—H11 | 119.7 |
| C7—N2—N1 | 118.25 (17) | C12—C11—C10 | 120.5 (2) |
| C17—N3—Ni1 | 131.96 (16) | C12—C11—H11 | 119.7 |
| C19—N3—Ni1 | 122.48 (16) | C11—C12—H12 | 119.7 |
| C19—N3—C17 | 105.51 (18) | C13—C12—C11 | 120.5 (2) |
| C18—N4—H4 | 120 (2) | C13—C12—H12 | 119.7 |
| C19—N4—H4 | 132 (2) | O3—C13—C12 | 115.9 (2) |
| C19—N4—C18 | 107.6 (2) | O3—C13—C14 | 124.3 (2) |
| C2—C1—C6 | 116.57 (19) | C14—C13—C12 | 119.9 (2) |
| C2—C1—C7 | 118.67 (18) | C13—C14—H14 | 120.4 |
| C6—C1—C7 | 124.76 (18) | C15—C14—C13 | 119.3 (2) |
| C1—C2—H2 | 118.8 | C15—C14—H14 | 120.4 |
| C3—C2—C1 | 122.3 (2) | C10—C15—H15 | 119.0 |
| C3—C2—H2 | 118.8 | C14—C15—C10 | 122.0 (2) |
| C2—C3—Cl1 | 119.64 (17) | C14—C15—H15 | 119.0 |
| C2—C3—C4 | 121.6 (2) | O3—C16—H16A | 109.5 |
| C4—C3—Cl1 | 118.72 (18) | O3—C16—H16B | 109.5 |
| C3—C4—H4A | 121.2 | O3—C16—H16C | 109.5 |
| C5—C4—C3 | 117.6 (2) | H16A—C16—H16B | 109.5 |
| C5—C4—H4A | 121.2 | H16A—C16—H16C | 109.5 |
| C4—C5—H5 | 118.4 | H16B—C16—H16C | 109.5 |
| C4—C5—C6 | 123.1 (2) | N3—C17—H17 | 125.6 |
| C6—C5—H5 | 118.4 | C18—C17—N3 | 108.8 (2) |
| O2—C6—C1 | 124.79 (19) | C18—C17—H17 | 125.6 |
| O2—C6—C5 | 116.47 (18) | N4—C18—H18 | 126.6 |
| C5—C6—C1 | 118.72 (19) | C17—C18—N4 | 106.7 (2) |
| N2—C7—C1 | 120.71 (18) | C17—C18—H18 | 126.6 |
| N2—C7—C8 | 119.1 (2) | N3—C19—N4 | 111.4 (2) |
| C1—C7—C8 | 120.19 (19) | N3—C19—H19 | 124.3 |
| C7—C8—H8A | 109.5 | N4—C19—H19 | 124.3 |
| Ni1—O1—C9—N1 | −0.8 (3) | C2—C1—C7—C8 | −1.5 (3) |
| Ni1—O1—C9—C10 | 177.82 (14) | C2—C3—C4—C5 | 1.0 (3) |
| Ni1—O2—C6—C1 | −6.1 (3) | C3—C4—C5—C6 | 0.0 (3) |
| Ni1—O2—C6—C5 | 172.09 (15) | C4—C5—C6—O2 | −179.5 (2) |
| Ni1—N2—C7—C1 | 9.6 (3) | C4—C5—C6—C1 | −1.2 (3) |
| Ni1—N2—C7—C8 | −170.21 (18) | C6—C1—C2—C3 | −0.4 (3) |
| Ni1—N3—C17—C18 | 177.28 (18) | C6—C1—C7—N2 | −1.1 (3) |
| Ni1—N3—C19—N4 | −177.80 (17) | C6—C1—C7—C8 | 178.7 (2) |
| Cl1—C3—C4—C5 | 179.21 (18) | C7—C1—C2—C3 | 179.8 (2) |
| O1—C9—C10—C11 | 179.9 (2) | C7—C1—C6—O2 | −0.7 (3) |
| O1—C9—C10—C15 | −0.5 (3) | C7—C1—C6—C5 | −178.9 (2) |
| O3—C13—C14—C15 | 179.9 (2) | C9—N1—N2—Ni1 | 0.9 (2) |
| N1—N2—C7—C1 | −176.82 (18) | C9—N1—N2—C7 | −173.69 (19) |
| N1—N2—C7—C8 | 3.4 (3) | C9—C10—C11—C12 | 178.4 (2) |
| N1—C9—C10—C11 | −1.4 (3) | C9—C10—C15—C14 | −178.5 (2) |
| N1—C9—C10—C15 | 178.2 (2) | C10—C11—C12—C13 | 1.2 (4) |
| N2—Ni1—O1—C9 | 0.95 (14) | C11—C10—C15—C14 | 1.1 (3) |
| N2—Ni1—O2—C6 | 10.33 (18) | C11—C12—C13—O3 | 179.8 (2) |
| N2—N1—C9—O1 | 0.0 (3) | C11—C12—C13—C14 | −1.0 (4) |
| N2—N1—C9—C10 | −178.63 (17) | C12—C13—C14—C15 | 0.9 (4) |
| N3—Ni1—O1—C9 | −179.41 (15) | C13—C14—C15—C10 | −1.0 (4) |
| N3—Ni1—O2—C6 | −170.01 (17) | C15—C10—C11—C12 | −1.2 (3) |
| N3—C17—C18—N4 | 0.3 (3) | C16—O3—C13—C12 | −175.6 (3) |
| C1—C2—C3—Cl1 | −178.99 (17) | C16—O3—C13—C14 | 5.3 (4) |
| C1—C2—C3—C4 | −0.8 (4) | C17—N3—C19—N4 | −0.1 (3) |
| C2—C1—C6—O2 | 179.5 (2) | C18—N4—C19—N3 | 0.3 (3) |
| C2—C1—C6—C5 | 1.3 (3) | C19—N3—C17—C18 | −0.2 (3) |
| C2—C1—C7—N2 | 178.7 (2) | C19—N4—C18—C17 | −0.3 (3) |
Hydrogen-bond geometry (Å, º)
| D—H···A | D—H | H···A | D···A | D—H···A |
| N4—H4···O2i | 0.92 (4) | 1.93 (4) | 2.818 (3) | 161 (3) |
| C8—H8A···Cl1ii | 0.96 | 2.86 | 3.700 (3) | 147 |
Symmetry codes: (i) −y+5/4, x+1/4, −z+5/4; (ii) −x+3/2, −y+1, z−1/2.
Funding Statement
The author would like to thank Taishan University for support of this work.
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Associated Data
This section collects any data citations, data availability statements, or supplementary materials included in this article.
Supplementary Materials
Crystal structure: contains datablock(s) I. DOI: 10.1107/S2414314622002954/tk4076sup1.cif
Structure factors: contains datablock(s) I. DOI: 10.1107/S2414314622002954/tk4076Isup2.hkl
CCDC reference: 2159183
Additional supporting information: crystallographic information; 3D view; checkCIF report


