Synthesis and crystal structure of bis­[μ2-7-({bis­[(pyridin-2-yl)meth­yl]amino-κ3N,N′,N′′}meth­yl)-5-chloro­quinolin-8-olato-κ2N,O]dizinc(II) bis­(perchlorate) aceto­nitrile monosolvate

Kubono, K.; Tani, K.; Kashiwagi, Y.

doi:10.1107/S2056989025010680

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ISSN: 2056-9890

Volume 82| Part 1| January 2026| Pages 5-9

https://doi.org/10.1107/S2056989025010680

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Synthesis and crystal structure of bis[μ₂-7-({bis[(pyridin-2-yl)methyl]amino-κ³N,N′,N′′}methyl)-5-chloroquinolin-8-olato-κ²N,O]dizinc(II) bis(perchlorate) acetonitrile monosolvate

Koji Kubono,^a ^* Keita Tani ^a and Yukiyasu Kashiwagi ^b

^aOsaka Kyoiku University, 4-698-1 Asahigaoka, Kashiwara, Osaka 582-8582, Japan, and ^bOsaka Research Institute of Industrial Science and Technology, 1-6-50 Morinomiya, Joto-ku, Osaka 536-8553, Japan
^*Correspondence e-mail: [email protected]

Edited by T. Akitsu, Tokyo University of Science, Japan (Received 25 November 2025; accepted 30 November 2025; online 1 January 2026)

The title compound, [Zn₂(C₂₂H₁₈ClN₄O)₂](ClO₄)₂·CH₃CN, consists of one centrosymmetric cationic dinuclear zinc(II) complex with two pentadentate ligands containing quinolin-8-olato and bis(pyridin-2-ylmethyl)amine groups, two perchlorate counter-ions and one acetonitrile solvate molecule. The Zn^II atom adopts a distorted octahedral geometry and coordinates the O atom and the N atom of the quinolin-8-olato group and three N atoms of the bis(pyridin-2-ylmethyl)amine group in a ligand, and the O atom in an adjacent ligand generated by an inversion operation. The phenolato oxygen atoms in the two ligands of the cationic dinuclear complex are bridging coordinated with the two Zn^II atoms. In the crystal, the cationic dinuclear complex molecules and perchlorate ions are linked by C—H⋯Cl and C—H⋯O hydrogen bonds, forming a three-dimensional network.

Keywords: crystal structure; zinc(II) complex; dimeric dinuclear structure; 8-quinolinol; bis(2-picoly)amine; C—H⋯O interactions.

CCDC reference: 2512101

1. Chemical context

Dinuclear metal complexes have recently gained considerable attention due to their applications in various fields, including catalysis (Ouyang et al., 2018 ), magnetic materials (Rabelo et al., 2020 ) and biosensors (Das & Gupta, 2021 ). Dinuclear metal complex with quinolin-8-ol (Hq) derivatives have wide applications in diverse areas such as magnetic and luminescent materials (Shen et al., 2015 ; Wang et al., 2016 ). We synthesized a pentadentate ligand (HClqdpa) containing Hq and bis(pyridin-2-ylmethyl)amine [di-(2-picolyl)amine, dpa] moieties (Kubono et al., 2015 ). HClqdpa forms a mononuclear Zn:ligand = 1:1 complex with zinc(II) bromide, ZnBr₂(HClqdpa), and a dinuclear Zn:ligand = 2:1 complex with zinc(II) chloride, Zn₂Cl₃(Clqdpa) (Kubono et al., 2022 , 2024 ). These Zn^II complexes contain strongly donating anions, but a zinc(II) salt with a weakly donating anion can form a complex with a different structure with the ligand.

Herein we report on the synthesis of a dimeric dinuclear ion-pair Zn:ligand = 2:2 complex between zinc(II) perchlorate and HClqdpa, [Zn₂(Clqdpa)₂](ClO₄)₂, and crystal structure of its acetonitrile solvate.

2. Structural commentary

The molecular structure of the title compound is shown in Fig. 1. The asymmetric unit is composed of one Zn^II atom, one Clqdpa ligand, one perchlorate anion and one-half of an acetonitrile solvate molecule. The solvate molecule is disordered within the cavities around a centre of inversion, which is located in the middle of the methyl groups of the two acetonitrile molecules. The Zn^II complex is a centrosymmetric dinuclear structure. The Zn1 atom adopts a distorted octahedral geometry and coordinates the O atom of the quinolinol unit and three N atoms of the dpa unit in one Clqdpa ligand, and the O atom and the N atom in an adjacent Clqdpa ligand generated by the inversion operation. The phenolato oxygen atoms in the two ligands of the dinuclear complex are bridging coordinated with the two Zn^II atoms. The Zn1—O4 bond distance is 2.0496 (13) Å, shorter than that the of Zn1—O4ⁱ [2.0906 (12) Å; symmetry code: (i) 1 − x, 1 − y, 1 − z] (Table 1). The Zn1—N10 (aliphatic tertiary amine) is 2.3072 (16) Å, longer than those of the Zn—N (aromatic amine) [Zn1—N9ⁱ, Zn1—N11, Zn1—N12 are 2.2527 (16), 2.1171 (15) and 2.0868 (15) Å, respectively]. The parameter σ, proposed by Zhu et al. (2008 ) to quantify the degree of distortion of an octahedral geometry, is 0.592, indicating a substantial distortion. This angular structural parameter, defined as σ = [α_min + α_max − 180]/90, is evaluated from the minimum angle and maximum angle (α_min, α_max), and has a value of 1 for an ideal octahedral geometry. The related polymorphs of the Zn^II complexes with a ligand in which the Cl atom of HClqdpa is replaced with an H atom, bis(μ-7-({bis[(pyridin-2-yl)methyl]amino}methyl)quinolin-8-olato)dizinc(II) bis(tetraphenylborate), [Zn₂(qdpa)₂](BPh₄)₂ have σ parameters of 0.582 (for the P2₁/c polymorph) and 0.426 (for the P $[\overline{1}]$ polymorph) (CSD refcodes FEDTUH and FEDTOB; Kong et al., 2022 ). The Zn1⋯Zn1ⁱ distance within the dinuclear complex is 3.2829 (3) Å, similar to those of the related Zn^II complexes (3.231 Å for FEDTUH and 3.247 Å for FEDTOB). The Zn1—O4—Zn1ⁱ angle is 104.92 (5)° (Table 1), which is close to 102.34 (6)° for FEDTUH and 103.28 (5)° for FEDTOB. The other related complex with the same combination of ligand skeleton and substituents is bis(μ₂-[bis(2-pyridylmethyl)-8-(oxy)quinoline-2-methyl]amine)dizinc(II) diperchlorate (RIZROI; Xue et al., 2008 ). In this complex, the Zn⋯Zn distance is 3.496 Å and the Zn—O—Zn angle is 109.71 (17)°, and the σ parameter is 0.402. In the related Zn:ligand 2:1 complex between HClqdpa and zinc(II) chloride, Zn₂Cl₃(Clqdpa), in which the Zn^II atoms adopt a tetrahedral and a distorted trigonal–bipyramidal geometry, the Zn⋯Zn distance is 3.3684 (9) Å and the Zn—O—Zn angle is 112.72 (12)° (Kubono et al.;,2024).

Table 1
Selected geometric parameters (Å, °)

Zn1—O4	2.0496 (13)	Zn1—N10	2.3072 (16)
Zn1—O4ⁱ	2.0906 (12)	Zn1—N11	2.1171 (15)
Zn1—N9ⁱ	2.2527 (16)	Zn1—N12	2.0868 (15)

O4—Zn1—O4ⁱ	75.08 (5)	N9ⁱ—Zn1—N10	125.53 (6)
O4ⁱ—Zn1—N9ⁱ	74.58 (5)	N11—Zn1—N9ⁱ	83.56 (5)
O4—Zn1—N9ⁱ	145.63 (5)	N11—Zn1—N10	74.51 (6)
O4—Zn1—N10	87.06 (5)	N12—Zn1—O4ⁱ	97.09 (5)
O4ⁱ—Zn1—N10	158.76 (5)	N12—Zn1—N9ⁱ	93.98 (6)
O4—Zn1—N11	97.03 (5)	N12—Zn1—N10	76.40 (6)
O4ⁱ—Zn1—N11	118.42 (6)	N12—Zn1—N11	141.96 (6)
O4—Zn1—N12	105.45 (6)	Zn1—O4—Zn1ⁱ	104.92 (5)
Symmetry code: (i) .

Figure 1
The molecular structure of the title compound, with the atom labelling. Displacement ellipsoids are drawn at the 50% probability level. The major occupancy perchlorate ion is drawn using unbroken lines (A) and the minor disorder component is drawn using dashed lines (B). H atoms are represented by spheres of arbitrary radius. [Symmetry code: (i) −x + 1, −y + 1, −z + 1.]

3. Supramolecular features

In the crystal, two cationic dinuclear complex molecules are associated through a pair of intermolecular C—H⋯Cl hydrogen bonds [C23—H23B⋯Cl2^iv; symmetry code: (iv) 1 − x, 2 − y, 1 − z; Table 2] and an inversion operation, forming a dimer with an R₂²(12) ring motif and a one-dimensional network propagating along the b-axis direction. Another one-dimensional network is generated by intermolecular C—H⋯O hydrogen bonds between the cationic dinuclear complex and the major occupancy perchlorate ion [C21—H21⋯O8Aⁱⁱⁱ and C34—H34⋯O7A^vii; symmetry codes: (iii) x, y, z – 1; (vii) x, y – 1, z] (Table 2) along the [0 $[\overline{1}]$ 1] direction. These intermolecular C—H⋯Cl and C—H⋯O hydrogen bonds generate a two-dimensional network lying parallel to the bc plane (Fig. 2). Furthermore, there are other intermolecular C—H⋯O hydrogen bonds between the cationic dinuclear complex and the major occupancy component of the perchlorate ion [C21—H21⋯O8Aⁱⁱⁱ and C33—H33⋯O8A^vi; symmetry codes: (iii) x, y, z – 1; (vi) 2 − x, 1 − y, 2 − z] (Table 2), forming a one-dimensional network along the a-axis direction (Fig. 3). In the crystal, the cationic dinuclear complex molecules and major occupancy perchlorate ions are linked by intermolecular C—H⋯Cl and C—H⋯O hydrogen bonds, forming a three-dimensional network structure.

Table 2
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C20—H20⋯O5Bⁱⁱ	0.95	2.44	3.124 (4)	129
C21—H21⋯O8Aⁱⁱⁱ	0.95	2.43	3.152 (14)	132
C21—H21⋯O8Bⁱⁱⁱ	0.95	2.30	3.094 (18)	141
C23—H23B⋯Cl2^iv	0.99	2.81	3.7220 (19)	154
C26—H26⋯O5B^v	0.95	2.38	3.140 (5)	137
C33—H33⋯O8A^vi	0.95	2.52	3.453 (15)	168
C33—H33⋯O8B^vi	0.95	2.60	3.504 (19)	160
C34—H34⋯O7A^vii	0.95	2.49	3.334 (5)	148
Symmetry codes: (ii) ; (iii) ; (iv) ; (v) ; (vi) ; (vii) .

Figure 2
Two-dimensional network structure between [Zn₂(Clqdpa)₂]²⁺ and the major occupancy component of the perchlorate ion parallel to the bc plane. The intermolecular C21—H21⋯O8Aⁱⁱⁱ, C23—H23B⋯Cl2^iv and C34—H34⋯O7A^vii hydrogen bonds are shown as dashed lines. H atoms not involved in the interactions and all components of the acetonitrile solvate molecule have been omitted for clarity. [Symmetry codes: (iii) x, y, z − 1; (iv) −x + 1, −y + 2, −z + 1; (vii) x, y − 1, z.]

Figure 3
One-dimensional network structure between [Zn₂(Clqdpa)₂]²⁺ and the minor occupancy component of the perchlorate ion along the a-axis direction. The intermolecular C21—H21⋯O8Aⁱⁱⁱ and C33—H33⋯O8A^vi hydrogen bonds are shown as dashed lines. H atoms not involved in the interactions and all components of the acetonitrile solvate molecule have been omitted for clarity. [Symmetry codes: (iii) x, y, z − 1; (vi) −x + 2, −y + 1, −z + 2.]

The minor occupancy perchlorate ion also forms network structures with the cationic dinuclear complex molecule, similar to that of between its major disorder component and the dinuclear complex. In the crystal, there are intermolecular C—H⋯O hydrogen bonds between the cationic dinuclear complex and the minor occupancy perchlorate ion [C20—H20⋯O8Bⁱⁱ, C23—H23B⋯Cl2^iv and C26—H26⋯O5B^v; symmetry codes: (ii) 2 − x, 2 − y, 1 − z; (iv) 1 − x, 2 − y, 1 − z; (v) x – 1, y, z] (Table 2), forming a one-dimensional network along the b-axis direction (Fig. 4). These intermolecular hydrogen bonds and C33—H33⋯O8B^vi hydrogen bonds [symmetry code: (vi) 2 − x, 1 − y, 2 − z] (Table 2) generate a two-dimensional network parallel to the bc plane (Fig. 5). Another one-dimensional network is formed by intermolecular C—H⋯O hydrogen bonds [C21—H21⋯O8Bⁱⁱⁱ and C33—H33⋯O8B^vi; symmetry codes (iii) x, y, z – 1; (vi) 2 − x, 1 − y, 2 − z (Table 2)] along the a-axis direction (Fig. 6). In the crystal, the dinuclear complex molecules and the minor occupancy perchlorate ions are also linked by C—H⋯Cl and C—H⋯O hydrogen bonds, forming a three-dimensional network structure.

Figure 4
One-dimensional network structure between [Zn₂(Clqdpa)₂]²⁺ and the minor occupancy perchlorate ion along the b-axis direction. The intermolecular C20—H20⋯O5Bⁱⁱ, C23—H23B⋯Cl2^iv and C26—H26⋯O5B^v hydrogen bonds are shown as dashed lines. H atoms not involved in the interactions have been omitted for clarity. [Symmetry codes: (ii) −x + 2, −y + 2, −z + 1; (iv) –x + 1, –y + 2, –z + 1; (v) x − 1, y, z.]

Figure 5
Two-dimensional network structure between [Zn₂(Clqdpa)₂]²⁺ and the minor occupancy perchlorate ion parallel to the bc plane. The intermolecular C20—H20⋯O5Bⁱⁱ, C23—H23⋯Cl2^iv, C26—H26⋯O5B^v and C33—H33⋯O8B^vi hydrogen bonds are shown as dashed lines. H atoms not involved in the interactions and all components of the acetonitrile solvate molecule have been omitted for clarity. [Symmetry codes: (ii) −x + 2, −y + 2, −z + 1; (iv) −x + 1, −y + 2, −z + 1; (v) x − 1, y, z; (vi) −x + 2, −y + 1, −z + 2.]

Figure 6
Another one-dimensional network structure between [Zn₂(Clqdpa)₂]²⁺ and the minor occupancy perchlorate ion along the a-axis direction.. The intermolecular C21—H21⋯O8Bⁱⁱⁱ and C33—H33⋯O8B^vi hydrogen bonds are shown as dashed lines. H atoms not involved in the interactions have been omitted for clarity. [Symmetry codes: (iii) x, y, z − 1; (vi) −x + 2, −y + 1, −z + 2.]

4. Database survey

A search of the Cambridge Structural Database (CSD, 6.00, update of August 2025; Groom et al., 2016 ) using ConQuest (Bruno et al., 2002 ) for the μ₂-phenolato-1:2κ²O-dizinc(II) fragment as ligand gave 1683 hits. μ₂-Dinuclear metal complexes with the quinolin-8-olato-1:2κ²O fragment gave 843 hits and among those, 83 hits for μ₂-dinuclear Zn^II complexes. Of these 83 analogues, 55 structures have a μ₂-bis(μ₂-quinolin-8-olato-2κN;1:2κ²O)-dizinc(II) fragment containing two quinolin-8-olato moieties. Among these 55 analogues, four structures are μ₂-dinuclear zinc(II) complexes containing two quinolin-8-olato moieties and a dpa unit. Of the four analogues, two structures are polymorphs of the Zn^II:ligand = 2:2 dinuclear complex with the ligand in which the Cl atom of HClqdpa is replaced with an H atom, bis(μ₂-7-({bis[(pyridin-2-yl)methyl]amino}methyl)quinolin-8-olato-2κN;1:2κ²O)dizinc(II) bis(tetraphenylborate) (FEDTUH and FEDTOB; Kong et al., 2022), and other two structures are the Zn^II:ligand = 2:2 dinuclear μ₂-type complexes with two 2-{[(pyridin-2-yl)methyl]amino}methyl)quinolin-8-olato-2κN;1:2κ²O) fragments (RIZROI; Xue et al., 2008; CIGJAF; Royzen & Canary, 2013 ). All of the four μ₂-dinuclear Zn^II complexes contain qunolin-8-olato and dpa moieties and have distorted octahedral geometries.

5. Synthesis and crystallization

The HClqdpa ligand was prepared by the reported method (Kubono et al., 2015). Zinc(II) perchlorate hexahydrate (93.1 mg, 0.25 mmol) was dissolved in 20 mL of hot acetonitrile. Then a solution of HClqdpa (97.7 mg, 0.25 mmol) in 15 mL of hot acetonitrile was added to the zinc salt solution. The mixture was stirred for 20 min at 333 K. After slow evaporation of the solvent at room temperature in the air for one week, yellow crystals of the title compound were obtained (yield 28.2%). Analysis calculated for C₄₆H₃₉Cl₄N₉O₁₀Zn₂: C 48.02, H 3.42, N 10.96%; found: C 48.00, H 3.43, N 10.76%.

6. Refinement

Crystal data, data collection and structure refinement details are summarized in Table 3. All H atoms bound to carbon were positioned geometrically and refined using a riding model, with C—H = 0.95–0.99 Å and U_iso(H) = 1.2U_eq(C). The perchlorate ion is disordered over two sets of sites with refined occupancies of 0.510 (4) and 0.490 (4). The solvate acetonitrile molecules are disordered within the cavities around a center of inversion, which is located in the middle of the methyl groups of the two acetonitrile molecules. Therefore, all the atoms of acetonitrile were refined with 0.5 occupancy.

Table 3
Experimental details

Crystal data
Chemical formula	[Zn₂(C₂₂H₁₈ClN₄O)₂](ClO₄)₂·C₂H₃N
M_r	1150.44
Crystal system, space group	Triclinic, P $[\overline{1}]$
Temperature (K)	100
a, b, c (Å)	9.5378 (1), 10.3401 (2), 12.5859 (2)
α, β, γ (°)	68.719 (2), 89.599 (1), 86.872 (1)
V (Å³)	1154.77 (4)
Z	1
Radiation type	Cu Kα
μ (mm⁻¹)	4.01
Crystal size (mm)	0.21 × 0.16 × 0.07

Data collection
Diffractometer	XtaLAB Synergy, Dualflex, HyPix
Absorption correction	Multi-scan (CrysAlis PRO; Rigaku OD, 2023 )
T_min, T_max	0.784, 1.000
No. of measured, independent and observed [I > 2σ(I)] reflections	14973, 4562, 4315
R_int	0.030
(sin θ/λ)_max (Å⁻¹)	0.631

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.029, 0.074, 1.05
No. of reflections	4562
No. of parameters	381
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	0.30, −0.43
Computer programs: CrysAlis PRO (Rigaku OD, 2023), SHELXT2018/2 (Sheldrick, 2015a ), SHELXL2018/3 (Sheldrick, 2015b ), PLATON (Spek, 2020 ) and OLEX2 (Dolomanov et al., 2009 ).

Supporting information

CCDC reference: 2512101

Crystal structure: contains datablock I. DOI: https://doi.org/10.1107/S2056989025010680/jp2022sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989025010680/jp2022Isup2.hkl

checkCIF report

Computing details top

Bis[µ₂-7-({bis[(pyridin-2-yl)methyl]amino-κ³N,N',N''}methyl)-5-chloroquinolin-8-olato-κ²N,O]dizinc(II) bis(perchlorate) acetonitrile monosolvate top

Crystal data top

[Zn₂(C₂₂H₁₈ClN₄O)₂](ClO₄)₂·C₂H₃N	Z = 1
M_r = 1150.44	F(000) = 586
Triclinic, P1	D_x = 1.654 Mg m⁻³
a = 9.5378 (1) Å	Cu Kα radiation, λ = 1.54184 Å
b = 10.3401 (2) Å	Cell parameters from 10658 reflections
c = 12.5859 (2) Å	θ = 3.8–76.3°
α = 68.719 (2)°	µ = 4.01 mm⁻¹
β = 89.599 (1)°	T = 100 K
γ = 86.872 (1)°	Block, yellow
V = 1154.77 (4) Å³	0.21 × 0.16 × 0.07 mm

Data collection top

XtaLAB Synergy, Dualflex, HyPix diffractometer	4562 independent reflections
Radiation source: micro-focus sealed X-ray tube, PhotonJet (Cu) X-ray Source	4315 reflections with I > 2σ(I)
Mirror monochromator	R_int = 0.030
Detector resolution: 10.0000 pixels mm^-1	θ_max = 76.7°, θ_min = 3.8°
ω scans	h = −12→10
Absorption correction: multi-scan (CrysAlis PRO; Rigaku OD, 2023)	k = −13→11
T_min = 0.784, T_max = 1.000	l = −15→15
14973 measured reflections

Refinement top

Refinement on F²	0 restraints
Least-squares matrix: full	Hydrogen site location: inferred from neighbouring sites
R[F² > 2σ(F²)] = 0.029	H-atom parameters constrained
wR(F²) = 0.074	w = 1/[σ²(F_o²) + (0.0301P)² + 0.9245P] where P = (F_o² + 2F_c²)/3
S = 1.05	(Δ/σ)_max = 0.001
4562 reflections	Δρ_max = 0.30 e Å⁻³
381 parameters	Δρ_min = −0.43 e Å⁻³

Special details top

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) top

	x	y	z	U_iso*/U_eq	Occ. (<1)
Zn1	0.44190 (2)	0.44836 (2)	0.63109 (2)	0.01800 (8)
Cl2	0.82721 (5)	1.08836 (5)	0.51578 (4)	0.03096 (12)
O4	0.51495 (13)	0.61840 (13)	0.50446 (10)	0.0205 (3)
N9	0.67111 (15)	0.74922 (16)	0.32875 (13)	0.0213 (3)
N10	0.46481 (16)	0.56888 (18)	0.75191 (13)	0.0241 (3)
N11	0.23854 (15)	0.53586 (15)	0.64085 (14)	0.0209 (3)
N12	0.61760 (15)	0.34916 (17)	0.73133 (13)	0.0220 (3)
C14	0.57977 (17)	0.72556 (19)	0.51062 (15)	0.0196 (4)
C15	0.56558 (18)	0.7749 (2)	0.59955 (16)	0.0223 (4)
C16	0.64405 (19)	0.8878 (2)	0.59817 (17)	0.0237 (4)
H16	0.636216	0.919359	0.660155	0.028*
C17	0.73055 (19)	0.95240 (19)	0.51050 (17)	0.0238 (4)
C18	0.74269 (18)	0.91270 (19)	0.41431 (16)	0.0224 (4)
C19	0.8227 (2)	0.9784 (2)	0.31619 (18)	0.0273 (4)
H19	0.875610	1.055540	0.311331	0.033*
C20	0.8232 (2)	0.9302 (2)	0.22865 (18)	0.0294 (4)
H20	0.874732	0.974817	0.161600	0.035*
C21	0.7469 (2)	0.8139 (2)	0.23853 (17)	0.0267 (4)
H21	0.749874	0.780306	0.177580	0.032*
C22	0.66709 (18)	0.79726 (19)	0.41666 (15)	0.0198 (4)
C23	0.45798 (18)	0.7218 (2)	0.69141 (16)	0.0229 (4)
H23A	0.469910	0.766290	0.748177	0.027*
H23B	0.363252	0.751390	0.656580	0.027*
C24	0.3361 (2)	0.5285 (2)	0.81917 (16)	0.0300 (4)
H24A	0.322200	0.583104	0.869156	0.036*
H24B	0.345115	0.428747	0.867946	0.036*
C25	0.21211 (19)	0.55545 (19)	0.73906 (17)	0.0251 (4)
C26	0.0812 (2)	0.6044 (2)	0.7617 (2)	0.0325 (5)
H26	0.063648	0.614489	0.832788	0.039*
C27	−0.0227 (2)	0.6382 (2)	0.6793 (2)	0.0402 (6)
H27	−0.113275	0.671490	0.692897	0.048*
C28	0.0060 (2)	0.6232 (2)	0.5767 (2)	0.0385 (6)
H28	−0.063362	0.649069	0.517775	0.046*
C29	0.13779 (19)	0.56963 (19)	0.56083 (19)	0.0270 (4)
H29	0.156804	0.556661	0.491059	0.032*
C30	0.5936 (2)	0.5221 (3)	0.82249 (18)	0.0354 (5)
H30A	0.569083	0.497844	0.903730	0.042*
H30B	0.657736	0.599386	0.802052	0.042*
C31	0.6687 (2)	0.3976 (2)	0.80709 (16)	0.0281 (4)
C32	0.7909 (2)	0.3389 (3)	0.87016 (19)	0.0394 (6)
H32	0.826233	0.375608	0.923078	0.047*
C33	0.8593 (2)	0.2268 (3)	0.85444 (19)	0.0391 (5)
H33	0.942442	0.184774	0.896895	0.047*
C34	0.8063 (2)	0.1755 (2)	0.77627 (19)	0.0337 (5)
H34	0.852112	0.098118	0.764251	0.040*
C35	0.6853 (2)	0.2395 (2)	0.71628 (17)	0.0274 (4)
H35	0.648557	0.204903	0.662453	0.033*
Cl3A	0.8138 (3)	0.78193 (16)	0.92173 (13)	0.0249 (3)	0.510 (4)
O5A	0.6650 (3)	0.7740 (4)	0.9126 (3)	0.0470 (10)	0.510 (4)
O6A	0.8777 (15)	0.6501 (12)	0.9871 (11)	0.042 (2)	0.510 (4)
O7A	0.8706 (5)	0.8426 (4)	0.8104 (3)	0.0343 (9)	0.510 (4)
O8A	0.8358 (16)	0.8775 (11)	0.9836 (12)	0.0303 (15)	0.510 (4)
Cl3B	0.8733 (3)	0.77656 (16)	0.92142 (13)	0.0232 (4)	0.490 (4)
O5B	1.0194 (3)	0.8006 (4)	0.8992 (3)	0.0378 (9)	0.490 (4)
O6B	0.8578 (14)	0.6262 (14)	0.9709 (12)	0.046 (3)	0.490 (4)
O7B	0.7967 (6)	0.8170 (5)	0.8165 (4)	0.0442 (11)	0.490 (4)
O8B	0.823 (2)	0.8425 (13)	0.9919 (15)	0.060 (4)	0.490 (4)
N13	0.4660 (5)	0.7646 (5)	0.9584 (4)	0.0469 (10)	0.5
C36	0.4847 (5)	0.8680 (5)	0.9686 (4)	0.0355 (10)	0.5
C37	0.506 (3)	0.995 (2)	0.9846 (15)	0.044 (3)	0.5
H37A	0.427448	1.016460	1.027142	0.053*	0.5
H37B	0.511833	1.070243	0.910211	0.053*	0.5
H37C	0.593765	0.985752	1.027586	0.053*	0.5

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Zn1	0.01497 (12)	0.02499 (14)	0.01315 (13)	0.00192 (9)	0.00124 (8)	−0.00632 (10)
Cl2	0.0342 (3)	0.0205 (2)	0.0395 (3)	−0.00082 (18)	−0.0051 (2)	−0.0125 (2)
O4	0.0198 (6)	0.0270 (7)	0.0164 (6)	−0.0034 (5)	0.0026 (5)	−0.0096 (5)
N9	0.0203 (7)	0.0231 (8)	0.0196 (8)	0.0030 (6)	0.0024 (6)	−0.0074 (6)
N10	0.0192 (7)	0.0379 (9)	0.0159 (7)	0.0078 (6)	−0.0014 (6)	−0.0121 (7)
N11	0.0156 (7)	0.0180 (7)	0.0280 (8)	−0.0018 (5)	0.0044 (6)	−0.0070 (6)
N12	0.0180 (7)	0.0296 (8)	0.0154 (7)	0.0026 (6)	0.0002 (6)	−0.0053 (6)
C14	0.0153 (8)	0.0245 (9)	0.0201 (9)	0.0018 (7)	−0.0014 (7)	−0.0098 (7)
C15	0.0155 (8)	0.0320 (10)	0.0221 (9)	0.0018 (7)	−0.0015 (7)	−0.0136 (8)
C16	0.0193 (8)	0.0291 (10)	0.0270 (10)	0.0063 (7)	−0.0052 (7)	−0.0164 (8)
C17	0.0195 (8)	0.0220 (9)	0.0313 (10)	0.0037 (7)	−0.0055 (7)	−0.0121 (8)
C18	0.0176 (8)	0.0199 (9)	0.0276 (10)	0.0046 (7)	−0.0016 (7)	−0.0069 (7)
C19	0.0248 (9)	0.0192 (9)	0.0333 (11)	0.0021 (7)	0.0021 (8)	−0.0046 (8)
C20	0.0298 (10)	0.0245 (10)	0.0288 (11)	0.0011 (8)	0.0083 (8)	−0.0040 (8)
C21	0.0278 (10)	0.0278 (10)	0.0224 (10)	0.0028 (8)	0.0055 (8)	−0.0074 (8)
C22	0.0158 (8)	0.0225 (9)	0.0206 (9)	0.0045 (6)	−0.0009 (7)	−0.0080 (7)
C23	0.0180 (8)	0.0339 (10)	0.0225 (9)	0.0020 (7)	0.0007 (7)	−0.0175 (8)
C24	0.0325 (10)	0.0375 (11)	0.0162 (9)	0.0063 (8)	0.0086 (8)	−0.0064 (8)
C25	0.0220 (9)	0.0215 (9)	0.0290 (10)	−0.0026 (7)	0.0113 (7)	−0.0059 (8)
C26	0.0249 (10)	0.0245 (10)	0.0492 (13)	−0.0045 (8)	0.0162 (9)	−0.0147 (9)
C27	0.0179 (9)	0.0286 (11)	0.0830 (19)	−0.0034 (8)	0.0096 (10)	−0.0309 (12)
C28	0.0193 (9)	0.0282 (11)	0.0761 (17)	0.0017 (8)	−0.0124 (10)	−0.0288 (11)
C29	0.0191 (9)	0.0210 (9)	0.0443 (12)	−0.0022 (7)	−0.0061 (8)	−0.0157 (9)
C30	0.0304 (10)	0.0594 (14)	0.0207 (10)	0.0179 (10)	−0.0109 (8)	−0.0224 (10)
C31	0.0216 (9)	0.0471 (12)	0.0149 (9)	0.0085 (8)	−0.0013 (7)	−0.0117 (9)
C32	0.0286 (11)	0.0679 (16)	0.0256 (11)	0.0181 (10)	−0.0106 (8)	−0.0244 (11)
C33	0.0269 (10)	0.0593 (15)	0.0286 (11)	0.0180 (10)	−0.0082 (8)	−0.0157 (11)
C34	0.0290 (10)	0.0366 (11)	0.0327 (11)	0.0102 (9)	−0.0033 (9)	−0.0108 (9)
C35	0.0248 (9)	0.0278 (10)	0.0272 (10)	0.0030 (8)	−0.0026 (8)	−0.0075 (8)
Cl3A	0.0257 (8)	0.0275 (5)	0.0188 (5)	0.0039 (6)	0.0036 (6)	−0.0059 (4)
O5A	0.0270 (16)	0.050 (2)	0.075 (3)	−0.0046 (14)	0.0034 (15)	−0.0351 (19)
O6A	0.059 (5)	0.021 (4)	0.035 (3)	0.007 (3)	0.000 (2)	−0.001 (2)
O7A	0.058 (3)	0.0267 (17)	0.0173 (15)	0.0030 (17)	0.0106 (18)	−0.0082 (13)
O8A	0.040 (2)	0.034 (3)	0.023 (2)	0.004 (2)	−0.0067 (17)	−0.018 (2)
Cl3B	0.0322 (10)	0.0235 (5)	0.0135 (5)	0.0042 (7)	−0.0016 (7)	−0.0070 (4)
O5B	0.0415 (18)	0.049 (2)	0.0325 (18)	−0.0244 (15)	0.0132 (13)	−0.0238 (15)
O6B	0.044 (4)	0.027 (4)	0.053 (6)	−0.002 (3)	0.022 (4)	0.000 (3)
O7B	0.066 (3)	0.044 (2)	0.025 (2)	0.003 (2)	−0.020 (2)	−0.0159 (17)
O8B	0.070 (7)	0.086 (9)	0.049 (7)	0.030 (6)	−0.018 (5)	−0.058 (7)
N13	0.057 (3)	0.043 (2)	0.041 (2)	−0.008 (2)	0.018 (2)	−0.0147 (19)
C36	0.037 (2)	0.039 (3)	0.025 (2)	0.0038 (19)	0.0072 (17)	−0.0066 (19)
C37	0.039 (4)	0.039 (3)	0.062 (8)	0.014 (3)	−0.008 (7)	−0.029 (5)

Geometric parameters (Å, º) top

Zn1—O4	2.0496 (13)	C24—H24B	0.9900
Zn1—O4ⁱ	2.0906 (12)	C24—C25	1.506 (3)
Zn1—N9ⁱ	2.2527 (16)	C25—C26	1.389 (3)
Zn1—N10	2.3072 (16)	C26—H26	0.9500
Zn1—N11	2.1171 (15)	C26—C27	1.376 (3)
Zn1—N12	2.0868 (15)	C27—H27	0.9500
Cl2—C17	1.7439 (19)	C27—C28	1.379 (4)
O4—C14	1.324 (2)	C28—H28	0.9500
N9—C21	1.323 (2)	C28—C29	1.388 (3)
N9—C22	1.367 (2)	C29—H29	0.9500
N10—C23	1.483 (3)	C30—H30A	0.9900
N10—C24	1.478 (2)	C30—H30B	0.9900
N10—C30	1.474 (2)	C30—C31	1.512 (3)
N11—C25	1.343 (3)	C31—C32	1.394 (3)
N11—C29	1.335 (2)	C32—H32	0.9500
N12—C31	1.334 (3)	C32—C33	1.375 (3)
N12—C35	1.347 (3)	C33—H33	0.9500
C14—C15	1.392 (3)	C33—C34	1.386 (3)
C14—C22	1.435 (2)	C34—H34	0.9500
C15—C16	1.415 (3)	C34—C35	1.380 (3)
C15—C23	1.508 (3)	C35—H35	0.9500
C16—H16	0.9500	Cl3A—O5A	1.433 (4)
C16—C17	1.363 (3)	Cl3A—O6A	1.417 (14)
C17—C18	1.415 (3)	Cl3A—O7A	1.428 (4)
C18—C19	1.415 (3)	Cl3A—O8A	1.487 (13)
C18—C22	1.419 (3)	Cl3B—O5B	1.436 (4)
C19—H19	0.9500	Cl3B—O6B	1.465 (13)
C19—C20	1.364 (3)	Cl3B—O7B	1.425 (4)
C20—H20	0.9500	Cl3B—O8B	1.369 (18)
C20—C21	1.406 (3)	N13—C36	1.145 (6)
C21—H21	0.9500	C36—C37	1.425 (19)
C23—H23A	0.9900	C37—H37A	0.9800
C23—H23B	0.9900	C37—H37B	0.9800
C24—H24A	0.9900	C37—H37C	0.9800

O4—Zn1—O4ⁱ	75.08 (5)	C15—C23—H23B	108.5
O4ⁱ—Zn1—N9ⁱ	74.58 (5)	H23A—C23—H23B	107.5
O4—Zn1—N9ⁱ	145.63 (5)	N10—C24—H24A	109.9
O4—Zn1—N10	87.06 (5)	N10—C24—H24B	109.9
O4ⁱ—Zn1—N10	158.76 (5)	N10—C24—C25	109.15 (15)
O4—Zn1—N11	97.03 (5)	H24A—C24—H24B	108.3
O4ⁱ—Zn1—N11	118.42 (6)	C25—C24—H24A	109.9
O4—Zn1—N12	105.45 (6)	C25—C24—H24B	109.9
N9ⁱ—Zn1—N10	125.53 (6)	N11—C25—C24	115.36 (16)
N11—Zn1—N9ⁱ	83.56 (5)	N11—C25—C26	121.91 (19)
N11—Zn1—N10	74.51 (6)	C26—C25—C24	122.64 (19)
N12—Zn1—O4ⁱ	97.09 (5)	C25—C26—H26	120.6
N12—Zn1—N9ⁱ	93.98 (6)	C27—C26—C25	118.8 (2)
N12—Zn1—N10	76.40 (6)	C27—C26—H26	120.6
N12—Zn1—N11	141.96 (6)	C26—C27—H27	120.3
Zn1—O4—Zn1ⁱ	104.92 (5)	C26—C27—C28	119.33 (19)
C14—O4—Zn1ⁱ	119.28 (11)	C28—C27—H27	120.3
C14—O4—Zn1	130.39 (11)	C27—C28—H28	120.5
C21—N9—Zn1ⁱ	128.74 (13)	C27—C28—C29	119.0 (2)
C21—N9—C22	118.53 (16)	C29—C28—H28	120.5
C22—N9—Zn1ⁱ	112.47 (12)	N11—C29—C28	121.8 (2)
C23—N10—Zn1	113.04 (11)	N11—C29—H29	119.1
C24—N10—Zn1	99.31 (12)	C28—C29—H29	119.1
C24—N10—C23	109.22 (14)	N10—C30—H30A	109.1
C30—N10—Zn1	111.46 (12)	N10—C30—H30B	109.1
C30—N10—C23	110.81 (16)	N10—C30—C31	112.34 (17)
C30—N10—C24	112.52 (16)	H30A—C30—H30B	107.9
C25—N11—Zn1	114.70 (12)	C31—C30—H30A	109.1
C29—N11—Zn1	126.21 (13)	C31—C30—H30B	109.1
C29—N11—C25	119.08 (16)	N12—C31—C30	118.83 (16)
C31—N12—Zn1	120.55 (13)	N12—C31—C32	121.85 (19)
C31—N12—C35	118.97 (16)	C32—C31—C30	119.31 (19)
C35—N12—Zn1	120.39 (13)	C31—C32—H32	120.6
O4—C14—C15	124.62 (16)	C33—C32—C31	118.8 (2)
O4—C14—C22	116.93 (15)	C33—C32—H32	120.6
C15—C14—C22	118.42 (16)	C32—C33—H33	120.2
C14—C15—C16	119.30 (17)	C32—C33—C34	119.57 (19)
C14—C15—C23	121.93 (16)	C34—C33—H33	120.2
C16—C15—C23	118.47 (16)	C33—C34—H34	120.8
C15—C16—H16	119.0	C35—C34—C33	118.4 (2)
C17—C16—C15	121.90 (17)	C35—C34—H34	120.8
C17—C16—H16	119.0	N12—C35—C34	122.35 (19)
C16—C17—Cl2	119.50 (15)	N12—C35—H35	118.8
C16—C17—C18	121.44 (17)	C34—C35—H35	118.8
C18—C17—Cl2	119.05 (15)	O5A—Cl3A—O8A	106.9 (6)
C17—C18—C19	125.74 (18)	O6A—Cl3A—O5A	110.8 (6)
C17—C18—C22	116.81 (17)	O6A—Cl3A—O7A	113.9 (6)
C19—C18—C22	117.44 (17)	O6A—Cl3A—O8A	107.9 (7)
C18—C19—H19	120.2	O7A—Cl3A—O5A	109.5 (3)
C20—C19—C18	119.51 (18)	O7A—Cl3A—O8A	107.7 (5)
C20—C19—H19	120.2	O5B—Cl3B—O6B	108.5 (6)
C19—C20—H20	120.3	O7B—Cl3B—O5B	109.9 (3)
C19—C20—C21	119.41 (18)	O7B—Cl3B—O6B	102.9 (6)
C21—C20—H20	120.3	O8B—Cl3B—O5B	110.1 (7)
N9—C21—C20	123.04 (19)	O8B—Cl3B—O6B	112.0 (7)
N9—C21—H21	118.5	O8B—Cl3B—O7B	113.2 (8)
C20—C21—H21	118.5	N13—C36—C37	178.3 (9)
N9—C22—C14	116.00 (16)	C36—C37—H37A	109.5
N9—C22—C18	122.04 (16)	C36—C37—H37B	109.5
C18—C22—C14	121.95 (16)	C36—C37—H37C	109.5
N10—C23—C15	115.07 (15)	H37A—C37—H37B	109.5
N10—C23—H23A	108.5	H37A—C37—H37C	109.5
N10—C23—H23B	108.5	H37B—C37—H37C	109.5
C15—C23—H23A	108.5

Zn1—O4—C14—C15	−26.6 (2)	C16—C17—C18—C22	−3.6 (3)
Zn1ⁱ—O4—C14—C15	−176.44 (13)	C17—C18—C19—C20	−179.01 (18)
Zn1ⁱ—O4—C14—C22	5.5 (2)	C17—C18—C22—N9	−179.81 (16)
Zn1—O4—C14—C22	155.34 (12)	C17—C18—C22—C14	1.4 (3)
Zn1ⁱ—N9—C21—C20	−173.83 (14)	C18—C19—C20—C21	−1.5 (3)
Zn1ⁱ—N9—C22—C14	−7.22 (19)	C19—C18—C22—N9	0.6 (3)
Zn1ⁱ—N9—C22—C18	173.88 (13)	C19—C18—C22—C14	−178.28 (16)
Zn1—N10—C23—C15	−57.44 (17)	C19—C20—C21—N9	1.3 (3)
Zn1—N10—C24—C25	−51.37 (16)	C21—N9—C22—C14	178.16 (16)
Zn1—N10—C30—C31	−6.3 (2)	C21—N9—C22—C18	−0.7 (3)
Zn1—N11—C25—C24	7.1 (2)	C22—N9—C21—C20	−0.2 (3)
Zn1—N11—C25—C26	−176.26 (14)	C22—C14—C15—C16	−4.0 (3)
Zn1—N11—C29—C28	178.20 (14)	C22—C14—C15—C23	169.52 (16)
Zn1—N12—C31—C30	2.5 (3)	C22—C18—C19—C20	0.6 (3)
Zn1—N12—C31—C32	−175.94 (17)	C23—N10—C24—C25	67.1 (2)
Zn1—N12—C35—C34	176.39 (16)	C23—N10—C30—C31	−133.10 (18)
Cl2—C17—C18—C19	−3.3 (3)	C23—C15—C16—C17	−171.88 (17)
Cl2—C17—C18—C22	177.07 (13)	C24—N10—C23—C15	−166.98 (15)
O4—C14—C15—C16	177.98 (16)	C24—N10—C30—C31	104.3 (2)
O4—C14—C15—C23	−8.5 (3)	C24—C25—C26—C27	174.15 (19)
O4—C14—C22—N9	1.7 (2)	C25—N11—C29—C28	−0.6 (3)
O4—C14—C22—C18	−179.40 (15)	C25—C26—C27—C28	−0.3 (3)
N10—C24—C25—N11	34.0 (2)	C26—C27—C28—C29	2.3 (3)
N10—C24—C25—C26	−142.65 (18)	C27—C28—C29—N11	−1.8 (3)
N10—C30—C31—N12	3.0 (3)	C29—N11—C25—C24	−173.92 (17)
N10—C30—C31—C32	−178.5 (2)	C29—N11—C25—C26	2.7 (3)
N11—C25—C26—C27	−2.2 (3)	C30—N10—C23—C15	68.51 (19)
N12—C31—C32—C33	−0.8 (4)	C30—N10—C24—C25	−169.36 (17)
C14—C15—C16—C17	1.9 (3)	C30—C31—C32—C33	−179.2 (2)
C14—C15—C23—N10	54.8 (2)	C31—N12—C35—C34	−0.2 (3)
C15—C14—C22—N9	−176.47 (16)	C31—C32—C33—C34	0.4 (4)
C15—C14—C22—C18	2.4 (3)	C32—C33—C34—C35	0.0 (4)
C15—C16—C17—Cl2	−178.58 (14)	C33—C34—C35—N12	−0.1 (3)
C15—C16—C17—C18	2.1 (3)	C35—N12—C31—C30	179.09 (19)
C16—C15—C23—N10	−131.61 (17)	C35—N12—C31—C32	0.7 (3)
C16—C17—C18—C19	175.97 (18)

Symmetry code: (i) −x+1, −y+1, −z+1.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
C20—H20···O5Bⁱⁱ	0.95	2.44	3.124 (4)	129
C21—H21···O8Aⁱⁱⁱ	0.95	2.43	3.152 (14)	132
C21—H21···O8Bⁱⁱⁱ	0.95	2.30	3.094 (18)	141
C23—H23B···Cl2^iv	0.99	2.81	3.7220 (19)	154
C26—H26···O5B^v	0.95	2.38	3.140 (5)	137
C33—H33···O8A^vi	0.95	2.52	3.453 (15)	168
C33—H33···O8B^vi	0.95	2.60	3.504 (19)	160
C34—H34···O7A^vii	0.95	2.49	3.334 (5)	148

Symmetry codes: (ii) −x+2, −y+2, −z+1; (iii) x, y, z−1; (iv) −x+1, −y+2, −z+1; (v) x−1, y, z; (vi) −x+2, −y+1, −z+2; (vii) x, y−1, z.

References

Bruno, I. J., Cole, J. C., Edgington, P. R., Kessler, M., Macrae, C. F., McCabe, P., Pearson, J. & Taylor, R. (2002). Acta Cryst. B58, 389–397. Web of Science CrossRef CAS IUCr Journals Google Scholar
Das, B. & Gupta, P. (2021). Dalton Trans. 50, 10225–10236. Web of Science CrossRef CAS PubMed Google Scholar
Dolomanov, O. V., Bourhis, L. J., Gildea, R. J., Howard, J. A. K. & Puschmann, H. (2009). J. Appl. Cryst. 42, 339–341. Web of Science CrossRef CAS IUCr Journals Google Scholar
Groom, C. R., Bruno, I. J., Lightfoot, M. P. & Ward, S. C. (2016). Acta Cryst. B72, 171–179. Web of Science CrossRef IUCr Journals Google Scholar
Kong, M., Xing, F. & Zhu, S. (2022). Inorg. Chem. Commun. 141, 109530. Web of Science CSD CrossRef Google Scholar
Kubono, K., Kado, K., Kashiwagi, Y., Tani, K. & Yokoi, K. (2015). Acta Cryst. E71, 1545–1547. CSD CrossRef IUCr Journals Google Scholar
Kubono, K., Kashiwagi, Y., Tani, K. & Yokoi, K. (2022). Acta Cryst. E78, 326–329. Web of Science CSD CrossRef IUCr Journals Google Scholar
Kubono, K., Tanaka, K., Tani, K. & Kashiwagi, Y. (2024). Acta Cryst. E80, 1175–1179. Web of Science CSD CrossRef IUCr Journals Google Scholar
Ouyang, T., Wang, H.-J., Huang, H.-H., Wang, J.-W., Guo, S., Liu, W.-J., Zhong, D.-C. & Lu, T.-B. (2018). Angew. Chem. Int. Ed. 57, 16480–16485. Web of Science CrossRef CAS Google Scholar
Rabelo, R., Stiriba, S.-E., Cangussu, D., Pereira, M. P., Moliner, N., Ruiz-García, R., Cano, J., Faus, J., Journaux, Y. & Julve, M. (2020). Magnetochemistry 6, 69. Google Scholar
Rigaku OD (2023). CrysAlis PRO. Rigaku Oxford Diffraction Ltd, Yarnton, England. Google Scholar
Royzen, M. & Canary, J. W. (2013). Polyhedron 58, 85–91. Web of Science CSD CrossRef CAS Google Scholar
Sheldrick, G. M. (2015a). Acta Cryst. A71, 3–8. Web of Science CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (2015b). Acta Cryst. C71, 3–8. Web of Science CrossRef IUCr Journals Google Scholar
Shen, H.-Y., Wang, W.-M., Bi, Y.-X., Gao, H.-L., Liu, S. & Cui, J.-Z. (2015). Dalton Trans. 44, 18893–18901. Web of Science CSD CrossRef CAS PubMed Google Scholar
Spek, A. L. (2020). Acta Cryst. E76, 1–11. Web of Science CrossRef IUCr Journals Google Scholar
Wang, S.-Y., Wang, W.-M., Zhang, H.-X., Shen, H.-Y., Jiang, L., Cui, J.-Z. & Gao, H.-L. (2016). Dalton Trans. 45, 3362–3371. Web of Science CSD CrossRef CAS PubMed Google Scholar
Xue, L., Wang, H.-H., Wang, X.-J. & Jiang, H. (2008). Inorg. Chem. 47, 4310–4318. Web of Science CSD CrossRef PubMed CAS Google Scholar
Zhu, S., Zhang, H., Zhao, Y., Shao, M., Wang, Z. & Li, M. (2008). J. Mol. Struct. 892, 420–426. Web of Science CSD CrossRef CAS Google Scholar

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