Aqua­(1,4,7,10-tetra­aza­cyclo­dodeca­ne)zinc(II) bis­(perchlorate)

Ichimaru, Y.; Kato, K.; Kurosaki, H.; Fujioka, H.; Sakai, M.; Yamaguchi, Y.; Wanchun, J.; Sugiura, K.; Imai, M.; Koike, T.

doi:10.1107/S2414314621003977

metal-organic compounds

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ISSN: 2414-3146

Volume 6| Part 4| April 2021| x210397

https://doi.org/10.1107/S2414314621003977

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Aqua(1,4,7,10-tetraazacyclododecane)zinc(II) bis(perchlorate)

Yoshimi Ichimaru,^a ‡ Koichi Kato,^a ^* Hiromasa Kurosaki,^a Haruto Fujioka,^b Misa Sakai,^a Yoshihiro Yamaguchi,^c Jin Wanchun,^a Kirara Sugiura,^a Masanori Imai ^a and Tohru Koike ^d

^aCollege of Pharmacy, Kinjo Gakuin University, 2-1723 Omori, Moriyamaku, Nagoya, Aichi, 4638521, Japan, ^bLaboratory of Organic Medicinal Chemistry, Faculty of Pharmacy & Pharmaceutical Sciences, Fukuyama University, Fukuyama 729-0292, Japan, ^cEnvironmental Safety Center, Kumamoto University, 39-1 Kurokami 2-Chome, Chuo-ku, Kumamoto, 8608555, Japan, and ^dDepartment of Functional Molecular Science, Institute of Biochemical & Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan
^*Correspondence e-mail: kato-k@kinjo-u.ac.jp

Edited by L. Van Meervelt, Katholieke Universiteit Leuven, Belgium (Received 4 March 2021; accepted 14 April 2021; online 20 April 2021)

The cationic Zn^II part of aqua(1,4,7,10-tetraazacyclododecane)zinc(II) bis(perchlorate), [Zn(C₈H₂₀N₄)(H₂O)](ClO₄)₂, exhibits a slightly distorted square-pyramidal coordination environment with a water molecule in the apical position. In the crystal, the macrocyclic ring alternates between two conformations with equal occupancies. Two of the three perchlorate anions are situated about a twofold rotation axis, and one of them shows disorder of the O atoms with occupancies of 0.62 (7) and 0.38 (7). In the crystal, the complexes are connected by intermolecular hydrogen bonding via the perchlorate anions.

Keywords: crystal structure; zinc(II) complex; cyclen.

CCDC reference: 2067247

Structure description

The title complex, [Zn(C₈H₂₀N₄)H₂O](ClO₄)₂, comprises a cationic Zn^II complex and three perchlorate anions, two of which are located about a twofold rotation axis with one of them disordered [occupancy ratio for the corresponding O atoms is 0.62 (7):0.38 (7)]. The macrocyclic ring is disordered, and two alternate conformations of each N–C–C–N bridge can be observed (conformation A and B) (Fig. 1), in which four carbon atoms (C2, C4, C6, and C8) are shared. The central Zn^II cation is ligated by four N atoms of 1,4,7,10-tetraazacyclododecane (cyclen) in the basal plane, with a Zn^II-bound H₂O molecule occupying the apical position. Addison et al. (1984 ) proposed the geometry index [τ = (β − α)/60°] to determine if the five-coordinate atom has a square-pyramidal or trigonal–pyramidal coordination environment. The bond angles β and α are the largest and second-largest in the coordination sphere, respectively; an ideal square pyramid and an ideal trigonal bipyramid have τ = 0 and 1, respectively. In conformation A, the N—Zn^II—N bond angles α and β are 138.2 (3)° and 138.7 (3)°, respectively; the corresponding bond angles in conformation B are 137.4 (4)° and138.7(4)°. The τ values are 0.008 and 0.022 for conformations A and B, respectively. Therefore, the coordination geometry around the central Zn^II cation can be described as slightly distorted square-pyramidal. The occupancies for the non-hydrogen atoms of cyclen except for the four carbon atoms (C2, C4, C6, and C8) were set to 0.50. Atom Zn1 is 0.755 (5) and 0.763 (3) Å above the basal plane formed by four N atoms in conformations A and B, respectively. The Zn1—O1 bond length [1.9721 (4) Å] is within the typical range [1.94–2.03 Å] for similar five-coordinated Zn complexes (Bazzicalupi et al., 1995 ; Chen et al., 1994 ; Kato & Ito, 1985 ; Koike et al., 1994 ; Murthy & Karlin, 1993 ; Schrodt et al.; 1997 ). In addition, the mean Zn1—N bond length (2.13 Å) in the title complex is similar to that in the crystal structure of [Zn(cyclen)EtOH](ClO₄)₂ (Schrodt et al., 1997).

Figure 1
The structures of the molecular entities within the title complex showing 50% displacement ellipsoids. [Symmetry codes: (i) −x + 1, y, −z + $[{1\over 2}]$ ; (ii) −x, y, −z + $[{1\over 2}]$ ].

The two perchlorate ions are involved in intermolecular hydrogen bonds with the cationic Zn^II complex (Table 1). In the crystal, intermolecular hydrogen-bonding interactions connect neighboring molecules, forming a three-dimensional network (Fig. 2). As far as we know, an aqua(cyclen)copper(II) complex has already been reported (Pérez-Toro et al., 2015 ), but the aqua(cyclen)zinc(II) complex has not. The title aqua(cyclen)zinc(II) complex has been well studied as Zn^II-containing enzyme models, such as alkaline phosphatase, β-lactamase, and carbonic anhydrase, to elucidate the essential roles of Zn^II (Kimura et al., 1995 ; Kitajima et al., 1993 ; Zhang et al., 1993 ; Zhang & van Eldik, 1995 ). We succeeded in determining its crystal structure at this time.

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1A⋯O9A	0.86	2.48	3.12 (3)	132
O1—H1A⋯O9B	0.86	1.94	2.68 (4)	145
O1—H1B⋯O6	0.85	2.06	2.914 (9)	173
O1—H1B⋯O7	0.85	2.54	3.088 (7)	123
N2A—H2A⋯O7	0.98	2.37	3.144 (12)	135
N2B—H2B⋯O4ⁱ	0.98	2.49	3.086 (11)	119
N3A—H3A⋯O2ⁱⁱ	0.98	2.59	3.312 (10)	130
N3B—H3B⋯O2ⁱⁱ	0.98	2.47	3.170 (12)	128
N4A—H4A⋯O5ⁱⁱⁱ	0.98	2.18	3.094 (9)	155
N4A—H4A⋯O8ⁱⁱⁱ	0.98	2.49	3.103 (10)	120
N4B—H4B⋯O5ⁱⁱⁱ	0.98	2.1	3.030 (11)	157
N1A—H1AA⋯O8	0.98	2.15	3.099 (10)	162
N1B—H1BA⋯O8	0.98	2.16	3.105 (13)	163
Symmetry codes: (i) $[-x+1, y, -z+{\script{1\over 2}}]$ ; (ii) ; (iii) .

Figure 2
A view of the crystal packing of the title complex. Dashed lines denote the hydrogen bonds.

Synthesis and crystallization

The title complex was prepared as fine white solid according to a previously reported method (Koike et al., 1994) and then crystallized from aqueous ethanol.

Caution! Perchlorate salts of metal complexes with organic ligands are potentially explosive. Only small amounts of material should be prepared, and these should be handled with care.

Refinement

Crystal data, data collection and structure refinement details are summarized in Table 2. In the final cycles of refinement, 12 outliers were omitted.

Table 2
Experimental details

Crystal data
Chemical formula	[Zn(C₈H₂₀N₄)(H₂O)](ClO₄)₂
M_r	454.56
Crystal system, space group	Monoclinic, P2/c
Temperature (K)	93
a, b, c (Å)	12.3428 (6), 8.4603 (4), 16.0543 (6)
β (°)	92.881 (4)
V (Å³)	1674.33 (13)
Z	4
Radiation type	Cu Kα
μ (mm⁻¹)	5.48
Crystal size (mm)	0.29 × 0.16 × 0.04

Data collection
Diffractometer	Rigaku Synergy-i
Absorption correction	Gaussian (CrysAlis PRO; Rigaku OD, 2020 $[Rigaku OD (2020). CrysAlis PRO. Rigaku Oxford Diffraction, Yarnton, England.]$ )
T_min, T_max	0.535, 1.000
No. of measured, independent and observed [I > 2σ(I)] reflections	7740, 3025, 2670
R_int	0.057
(sin θ/λ)_max (Å⁻¹)	0.603

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.067, 0.186, 1.08
No. of reflections	3025
No. of parameters	301
H-atom treatment	H-atom parameters constrained
Δρ_max, Δρ_min (e Å⁻³)	1.15, −0.84
Computer programs: CrysAlis PRO (Rigaku OD, 2020 $[Rigaku OD (2020). CrysAlis PRO. Rigaku Oxford Diffraction, Yarnton, England.]$ ), SHELXT (Sheldrick, 2015a ), SHELXL (Sheldrick, 2015b ) and OLEX2 (Dolomanov et al., 2009 ).

Structural data

CCDC reference: 2067247

Crystal structure: contains datablock I. DOI: https://doi.org/10.1107/S2414314621003977/vm4048sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2414314621003977/vm4048Isup2.hkl

checkCIF report

Computing details top

Data collection: CrysAlis PRO (Rigaku OD, 2020); cell refinement: CrysAlis PRO (Rigaku OD, 2020); data reduction: CrysAlis PRO (Rigaku OD, 2020); program(s) used to solve structure: ShelXT (Sheldrick, 2015a); program(s) used to refine structure: SHELXL (Sheldrick, 2015b); molecular graphics: OLEX2 (Dolomanov et al., 2009); software used to prepare material for publication: OLEX2 (Dolomanov et al., 2009).

Aqua(1,4,7,10-tetraazacyclododecane)zinc(II) bis(perchlorate) top

Crystal data top

[Zn(C₈H₂₀N₄)(H₂O)](ClO₄)₂	F(000) = 936
M_r = 454.56	D_x = 1.803 Mg m⁻³
Monoclinic, P2/c	Cu Kα radiation, λ = 1.54184 Å
a = 12.3428 (6) Å	Cell parameters from 3951 reflections
b = 8.4603 (4) Å	θ = 5.5–68.1°
c = 16.0543 (6) Å	µ = 5.48 mm⁻¹
β = 92.881 (4)°	T = 93 K
V = 1674.33 (13) Å³	Block, clear light colourless
Z = 4	0.29 × 0.16 × 0.04 mm

Data collection top

Rigaku_Synergy-i diffractometer	3025 independent reflections
Radiation source: micro-focus sealed X-ray tube, PhotonJet (Cu) X-ray Source	2670 reflections with I > 2σ(I)
Mirror monochromator	R_int = 0.057
Detector resolution: 10.0000 pixels mm^-1	θ_max = 68.4°, θ_min = 3.6°
ω scans	h = −14→14
Absorption correction: gaussian (CrysAlisPro; Rigaku OD, 2020)	k = −10→9
T_min = 0.535, T_max = 1.000	l = −19→8
7740 measured reflections

Refinement top

Refinement on F²	Primary atom site location: dual
Least-squares matrix: full	Hydrogen site location: mixed
R[F² > 2σ(F²)] = 0.067	H-atom parameters constrained
wR(F²) = 0.186	w = 1/[σ²(F_o²) + (0.0991P)² + 7.9372P] where P = (F_o² + 2F_c²)/3
S = 1.08	(Δ/σ)_max < 0.001
3025 reflections	Δρ_max = 1.15 e Å⁻³
301 parameters	Δρ_min = −0.84 e Å⁻³
0 restraints

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.

Refinement. All hydrogen atoms were placed on calculated positions and refined in riding mode, with U_iso(H) values assigned as 1.2U_eq of the parent atoms (1.5 times for water molecule O1).

Fractional atomic coordinates and isotropic or equivalent isotropic displacement parameters (Å²) top

	x	y	z	U_iso*/U_eq	Occ. (<1)
Zn1	0.26041 (6)	0.65100 (8)	0.40586 (4)	0.0237 (3)
Cl1	0.77745 (10)	0.74888 (14)	0.44398 (7)	0.0253 (3)
Cl3	0.500000	0.3592 (2)	0.250000	0.0379 (5)
Cl2	0.000000	0.4021 (3)	0.250000	0.0427 (5)
O2	0.8653 (4)	0.6503 (5)	0.4747 (3)	0.0376 (10)
O1	0.2571 (4)	0.4307 (5)	0.3658 (3)	0.0380 (10)
H1A	0.288342	0.423897	0.319539	0.057*
H1B	0.191532	0.403407	0.353540	0.057*
O5	0.6950 (4)	0.6530 (4)	0.4022 (2)	0.0354 (10)
O4	0.8158 (4)	0.8651 (5)	0.3871 (3)	0.0386 (10)
O3	0.7314 (4)	0.8284 (5)	0.5133 (3)	0.0450 (11)
O8	0.5265 (5)	0.4556 (6)	0.3200 (3)	0.0565 (14)
O7	0.0864 (5)	0.4984 (7)	0.2230 (3)	0.0672 (17)
C6	0.1725 (5)	0.7292 (7)	0.5681 (3)	0.0337 (13)
H6AA	0.166719	0.628890	0.596708	0.040*	0.5
H6AB	0.130034	0.806911	0.596576	0.040*	0.5
H6BC	0.133141	0.634016	0.581254	0.040*	0.5
H6BD	0.182279	0.791458	0.618632	0.040*	0.5
O9A	0.430 (3)	0.243 (3)	0.2710 (8)	0.066 (6)	0.62 (7)
C8	0.4612 (5)	0.7428 (8)	0.5014 (4)	0.0414 (15)
H8AA	0.487825	0.803166	0.549486	0.050*	0.5
H8AB	0.512480	0.658178	0.492711	0.050*	0.5
H8BC	0.524175	0.810202	0.510715	0.050*	0.5
H8BD	0.479795	0.636990	0.520513	0.050*	0.5
C4	0.0710 (5)	0.8437 (8)	0.3503 (4)	0.0392 (14)
H4AA	0.018566	0.760976	0.337036	0.047*	0.5
H4AB	0.043655	0.941480	0.325667	0.047*	0.5
H4BC	0.031273	0.783663	0.307339	0.047*	0.5
H4BD	0.023943	0.927003	0.368971	0.047*	0.5
C2	0.3599 (6)	0.8620 (7)	0.2838 (4)	0.0377 (14)
H2AA	0.351470	0.797633	0.233856	0.045*	0.5
H2AB	0.412558	0.944234	0.274066	0.045*	0.5
H2BC	0.399202	0.791877	0.248175	0.045*	0.5
H2BD	0.352000	0.963274	0.255853	0.045*	0.5
N4A	0.3533 (8)	0.6720 (10)	0.5194 (5)	0.0214 (17)	0.5
H4A	0.362285	0.569147	0.546981	0.026*	0.5
N2A	0.1762 (9)	0.8030 (13)	0.3149 (5)	0.0256 (18)	0.5
H2A	0.163507	0.746012	0.262159	0.031*	0.5
N1A	0.3988 (8)	0.7609 (10)	0.3570 (6)	0.0238 (18)	0.5
H1AA	0.446853	0.678514	0.336943	0.029*	0.5
N3A	0.1304 (7)	0.7131 (10)	0.4792 (7)	0.0243 (18)	0.5
H3A	0.074948	0.630179	0.475250	0.029*	0.5
C3A	0.2519 (10)	0.9354 (13)	0.3034 (6)	0.028 (2)	0.5
H3AA	0.259465	0.998537	0.353821	0.034*	0.5
H3AB	0.225447	1.002771	0.257917	0.034*	0.5
C5A	0.0848 (9)	0.8626 (12)	0.4440 (8)	0.025 (2)	0.5
H5AA	0.133508	0.949844	0.457747	0.030*	0.5
H5AB	0.015347	0.884647	0.467187	0.030*	0.5
C7A	0.2892 (10)	0.7804 (15)	0.5691 (7)	0.027 (2)	0.5
H7AA	0.293554	0.886458	0.546567	0.033*	0.5
H7AB	0.319046	0.782356	0.626111	0.033*	0.5
C1A	0.4564 (10)	0.8461 (13)	0.4278 (7)	0.029 (2)	0.5
H1AB	0.529179	0.873893	0.413020	0.034*	0.5
H1AC	0.417900	0.942758	0.439999	0.034*	0.5
N1B	0.4265 (8)	0.7403 (14)	0.4110 (8)	0.034 (2)	0.5
H1BA	0.471976	0.663912	0.382960	0.041*	0.5
C1B	0.4205 (10)	0.8823 (15)	0.3617 (8)	0.037 (3)	0.5
H1BB	0.386928	0.964996	0.393325	0.045*	0.5
H1BC	0.493463	0.916393	0.350715	0.045*	0.5
N4B	0.2823 (11)	0.6851 (12)	0.5371 (6)	0.033 (2)	0.5
H4B	0.308024	0.586973	0.563809	0.040*	0.5
C7B	0.3640 (11)	0.8079 (15)	0.5489 (7)	0.037 (3)	0.5
H7BA	0.383889	0.822821	0.607646	0.044*	0.5
H7BB	0.338491	0.907531	0.525404	0.044*	0.5
N3B	0.1035 (9)	0.7343 (14)	0.4242 (7)	0.039 (3)	0.5
H3B	0.052515	0.645734	0.426759	0.047*	0.5
C5B	0.1084 (10)	0.8221 (16)	0.5035 (8)	0.037 (3)	0.5
H5BA	0.035586	0.839754	0.521684	0.044*	0.5
H5BB	0.142278	0.924175	0.495850	0.044*	0.5
N2B	0.2492 (10)	0.7937 (12)	0.2972 (6)	0.033 (2)	0.5
H2B	0.224070	0.730603	0.248759	0.039*	0.5
C3B	0.1686 (14)	0.914 (2)	0.3155 (7)	0.044 (3)	0.5
H3BA	0.147684	0.971106	0.264677	0.053*	0.5
H3BB	0.200630	0.989686	0.355062	0.053*	0.5
O9B	0.384 (3)	0.296 (5)	0.255 (3)	0.066 (12)	0.38 (7)
O6	0.0412 (6)	0.3127 (13)	0.3175 (6)	0.138 (5)

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Zn1	0.0349 (4)	0.0181 (4)	0.0184 (4)	−0.0015 (3)	0.0045 (3)	−0.0025 (2)
Cl1	0.0352 (7)	0.0198 (6)	0.0207 (6)	−0.0012 (5)	0.0004 (5)	−0.0014 (4)
Cl3	0.0561 (13)	0.0208 (9)	0.0381 (11)	0.000	0.0146 (9)	0.000
Cl2	0.0591 (13)	0.0369 (11)	0.0334 (10)	0.000	0.0138 (9)	0.000
O2	0.041 (2)	0.033 (2)	0.039 (2)	0.0041 (18)	0.0003 (18)	0.0095 (17)
O1	0.052 (3)	0.024 (2)	0.040 (2)	−0.0067 (19)	0.0189 (19)	−0.0098 (17)
O5	0.049 (3)	0.023 (2)	0.032 (2)	−0.0112 (17)	−0.0131 (18)	0.0006 (15)
O4	0.058 (3)	0.029 (2)	0.029 (2)	−0.0082 (19)	0.0013 (18)	0.0091 (16)
O3	0.056 (3)	0.041 (2)	0.039 (2)	−0.003 (2)	0.018 (2)	−0.0173 (19)
O8	0.071 (3)	0.031 (2)	0.064 (3)	0.009 (2)	−0.020 (3)	−0.017 (2)
O7	0.089 (4)	0.059 (3)	0.057 (3)	−0.030 (3)	0.036 (3)	−0.019 (3)
C6	0.054 (4)	0.026 (3)	0.023 (3)	0.003 (3)	0.016 (2)	−0.003 (2)
O9A	0.089 (13)	0.052 (8)	0.053 (6)	−0.048 (8)	−0.021 (6)	0.024 (6)
C8	0.042 (3)	0.050 (4)	0.032 (3)	0.004 (3)	−0.003 (3)	−0.013 (3)
C4	0.042 (3)	0.038 (3)	0.036 (3)	0.008 (3)	−0.008 (3)	−0.010 (3)
C2	0.056 (4)	0.032 (3)	0.027 (3)	−0.004 (3)	0.014 (3)	0.007 (2)
N4A	0.026 (5)	0.015 (4)	0.024 (4)	0.008 (4)	0.003 (4)	0.000 (3)
N2A	0.039 (6)	0.021 (6)	0.017 (4)	−0.007 (5)	0.003 (4)	−0.004 (4)
N1A	0.030 (5)	0.016 (5)	0.026 (5)	0.002 (4)	0.003 (4)	0.001 (4)
N3A	0.030 (5)	0.015 (5)	0.028 (5)	0.004 (4)	0.000 (4)	−0.006 (4)
C3A	0.042 (7)	0.027 (6)	0.016 (5)	−0.001 (5)	−0.003 (4)	−0.002 (4)
C5A	0.023 (5)	0.016 (5)	0.036 (7)	0.003 (4)	0.000 (4)	−0.006 (4)
C7A	0.036 (7)	0.027 (6)	0.019 (5)	0.004 (5)	0.000 (5)	−0.001 (5)
C1A	0.039 (6)	0.013 (5)	0.035 (7)	−0.012 (5)	0.009 (5)	−0.008 (4)
N1B	0.022 (5)	0.044 (8)	0.037 (6)	0.005 (5)	0.002 (4)	−0.001 (5)
C1B	0.040 (7)	0.035 (7)	0.038 (7)	−0.014 (5)	0.018 (5)	−0.007 (5)
N4B	0.068 (9)	0.013 (5)	0.019 (5)	0.011 (5)	0.000 (5)	0.002 (4)
C7B	0.046 (8)	0.035 (7)	0.028 (6)	0.007 (6)	−0.009 (5)	−0.008 (5)
N3B	0.035 (6)	0.046 (7)	0.037 (7)	−0.010 (5)	0.010 (5)	−0.011 (5)
C5B	0.037 (6)	0.036 (7)	0.038 (7)	−0.005 (5)	0.013 (5)	−0.005 (6)
N2B	0.052 (7)	0.028 (5)	0.018 (4)	0.006 (5)	−0.002 (4)	−0.002 (4)
C3B	0.072 (12)	0.035 (9)	0.024 (6)	0.008 (7)	−0.014 (6)	−0.002 (5)
O9B	0.071 (17)	0.073 (17)	0.056 (18)	−0.027 (15)	0.028 (13)	−0.040 (13)
O6	0.074 (5)	0.188 (10)	0.156 (8)	0.037 (6)	0.033 (5)	0.136 (8)

Geometric parameters (Å, º) top

Zn1—O1	1.971 (4)	C6—C7A	1.503 (14)
Zn1—N4A	2.111 (9)	C6—N4B	1.513 (14)
Zn1—N2A	2.171 (10)	C6—C5B	1.495 (15)
Zn1—N1A	2.129 (9)	C8—N4A	1.501 (12)
Zn1—N3A	2.104 (9)	C8—C1A	1.468 (13)
Zn1—N1B	2.183 (10)	C8—N1B	1.492 (13)
Zn1—N4B	2.130 (10)	C8—C7B	1.555 (15)
Zn1—N3B	2.096 (11)	C4—N2A	1.484 (13)
Zn1—N2B	2.121 (9)	C4—C5A	1.514 (13)
Cl1—O2	1.436 (4)	C4—N3B	1.542 (14)
Cl1—O5	1.440 (4)	C4—C3B	1.479 (19)
Cl1—O4	1.438 (4)	C2—N1A	1.512 (12)
Cl1—O3	1.442 (4)	C2—C3A	1.519 (14)
Cl3—O8ⁱ	1.413 (5)	C2—C1B	1.435 (15)
Cl3—O8	1.413 (5)	C2—N2B	1.510 (14)
Cl3—O9A	1.364 (14)	N4A—C7A	1.472 (14)
Cl3—O9Aⁱ	1.364 (14)	N2A—C3A	1.476 (15)
Cl3—O9B	1.53 (3)	N1A—C1A	1.496 (15)
Cl3—O9Bⁱ	1.53 (3)	N3A—C5A	1.485 (14)
Cl2—O7ⁱⁱ	1.427 (5)	N1B—C1B	1.439 (17)
Cl2—O7	1.427 (5)	N4B—C7B	1.454 (18)
Cl2—O6ⁱⁱ	1.397 (7)	N3B—C5B	1.473 (16)
Cl2—O6	1.397 (7)	N2B—C3B	1.466 (18)
C6—N3A	1.500 (12)

O1—Zn1—N4A	111.3 (3)	O6—Cl2—O7	107.3 (5)
O1—Zn1—N2A	109.8 (3)	O6—Cl2—O6ⁱⁱ	114.4 (11)
O1—Zn1—N1A	107.2 (3)	N3A—C6—C7A	108.8 (6)
O1—Zn1—N3A	114.5 (3)	C5B—C6—N4B	110.7 (7)
O1—Zn1—N1B	110.1 (3)	C1A—C8—N4A	113.1 (7)
O1—Zn1—N4B	116.8 (3)	N1B—C8—C7B	107.0 (7)
O1—Zn1—N3B	111.1 (3)	N2A—C4—C5A	110.4 (7)
O1—Zn1—N2B	105.7 (3)	C3B—C4—N3B	110.4 (7)
N4A—Zn1—N2A	138.7 (3)	N1A—C2—C3A	108.5 (6)
N4A—Zn1—N1A	82.6 (4)	C1B—C2—N2B	111.0 (7)
N1A—Zn1—N2A	81.9 (4)	C8—N4A—Zn1	108.4 (5)
N3A—Zn1—N4A	83.8 (4)	C7A—N4A—Zn1	103.7 (7)
N3A—Zn1—N2A	82.9 (4)	C7A—N4A—C8	111.2 (8)
N3A—Zn1—N1A	138.2 (3)	C4—N2A—Zn1	106.2 (5)
N4B—Zn1—N1B	81.0 (5)	C3A—N2A—Zn1	104.4 (7)
N3B—Zn1—N1B	138.7 (4)	C3A—N2A—C4	116.3 (10)
N3B—Zn1—N4B	83.6 (5)	C2—N1A—Zn1	107.7 (6)
N3B—Zn1—N2B	84.4 (5)	C1A—N1A—Zn1	106.8 (7)
N2B—Zn1—N1B	81.8 (5)	C1A—N1A—C2	116.0 (8)
N2B—Zn1—N4B	137.4 (4)	C6—N3A—Zn1	108.5 (5)
O2—Cl1—O5	109.7 (3)	C5A—N3A—Zn1	106.5 (7)
O2—Cl1—O4	110.4 (3)	C5A—N3A—C6	113.0 (8)
O2—Cl1—O3	109.0 (3)	N2A—C3A—C2	106.4 (9)
O5—Cl1—O3	109.0 (3)	N3A—C5A—C4	108.1 (8)
O4—Cl1—O5	109.7 (2)	N4A—C7A—C6	110.8 (10)
O4—Cl1—O3	109.1 (3)	C8—C1A—N1A	108.8 (9)
O8—Cl3—O8ⁱ	109.5 (4)	C8—N1B—Zn1	105.3 (6)
O8ⁱ—Cl3—O9B	94 (3)	C1B—N1B—Zn1	104.2 (8)
O8—Cl3—O9B	109.6 (8)	C1B—N1B—C8	121.9 (10)
O8—Cl3—O9Bⁱ	94 (3)	C2—C1B—N1B	112.9 (10)
O8ⁱ—Cl3—O9Bⁱ	109.6 (8)	C6—N4B—Zn1	106.7 (6)
O9A—Cl3—O8	110.2 (8)	C7B—N4B—Zn1	106.2 (8)
O9Aⁱ—Cl3—O8	119.3 (9)	C7B—N4B—C6	114.0 (10)
O9Aⁱ—Cl3—O8ⁱ	110.2 (8)	N4B—C7B—C8	103.3 (9)
O9A—Cl3—O8ⁱ	119.3 (9)	C4—N3B—Zn1	107.4 (6)
O9Aⁱ—Cl3—O9A	88 (3)	C5B—N3B—Zn1	107.0 (8)
O9Aⁱ—Cl3—O9Bⁱ	29.6 (13)	C5B—N3B—C4	111.1 (10)
O9A—Cl3—O9Bⁱ	112 (3)	N3B—C5B—C6	109.3 (11)
O7—Cl2—O7ⁱⁱ	110.4 (5)	C2—N2B—Zn1	108.2 (6)
O6ⁱⁱ—Cl2—O7ⁱⁱ	107.3 (5)	C3B—N2B—Zn1	104.4 (8)
O6ⁱⁱ—Cl2—O7	108.8 (5)	C3B—N2B—C2	113.0 (10)
O6—Cl2—O7ⁱⁱ	108.8 (5)	N2B—C3B—C4	111.6 (13)

Symmetry codes: (i) −x+1, y, −z+1/2; (ii) −x, y, −z+1/2.

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O1—H1A···O9A	0.86	2.48	3.12 (3)	132
O1—H1A···O9B	0.86	1.94	2.68 (4)	145
O1—H1B···O6	0.85	2.06	2.914 (9)	173
O1—H1B···O7	0.85	2.54	3.088 (7)	123
N2A—H2A···O7	0.98	2.37	3.144 (12)	135
N2B—H2B···O4ⁱ	0.98	2.49	3.086 (11)	119
N3A—H3A···O2ⁱⁱⁱ	0.98	2.59	3.312 (10)	130
N3B—H3B···O2ⁱⁱⁱ	0.98	2.47	3.170 (12)	128
N4A—H4A···O5^iv	0.98	2.18	3.094 (9)	155
N4A—H4A···O8^iv	0.98	2.49	3.103 (10)	120
N4B—H4B···O5^iv	0.98	2.1	3.030 (11)	157
N1A—H1AA···O8	0.98	2.15	3.099 (10)	162
N1B—H1BA···O8	0.98	2.16	3.105 (13)	163

Symmetry codes: (i) −x+1, y, −z+1/2; (iii) x−1, y, z; (iv) −x+1, −y+1, −z+1.

Footnotes

‡These authors contributed equally to this work.

References

Addison, W. A., Rao, N. T., Reedijk, J., van Rijn, J. & Verschoor, C. G. (1984). J. Chem. Soc. Dalton Trans. pp. 1349–1356. CSD CrossRef Google Scholar
Bazzicalupi, C., Bencini, A., Bianchi, A., Fusi, V., Paoletti, P. & Valtancoli, B. (1995). J. Chem. Soc. Chem. Commun. pp. 1555–1556. CrossRef Google Scholar
Chen, X.-M., Deng, Q.-Y., Wang, G. & Xu, Y.-J. (1994). Polyhedron, 13, 3085–3089. CSD CrossRef CAS 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
Kato, M. & Ito, T. (1985). Inorg. Chem. 24, 509–514. CSD CrossRef CAS Google Scholar
Kimura, E., Kodama, Y., Koike, T. & Shiro, M. (1995). J. Am. Chem. Soc. 117, 8304–8311. CSD CrossRef CAS Google Scholar
Kitajima, N., Hikichi, S., Tanaka, M. & Morooka, Y. (1993). J. Am. Chem. Soc. 115, 5496–5508. CSD CrossRef CAS Google Scholar
Koike, T., Takamura, M. & Kimura, E. (1994). J. Am. Chem. Soc. 116, 8443–8449. CrossRef CAS Google Scholar
Murthy, N. N. & Karlin, K. D. (1993). J. Chem. Soc. Chem. Commun. pp. 1236–1238. CSD CrossRef Google Scholar
Pérez-Toro, I., Domínguez-Martín, A., Choquesillo-Lazarte, D., Vílchez-Rodríguez, E., González-Pérez, J. M., Castiñeiras, A. & Niclós-Gutiérrez, J. (2015). J. Inorg. Biochem. 148, 84–92. PubMed Google Scholar
Rigaku OD (2020). CrysAlis PRO. Rigaku Oxford Diffraction, Yarnton, England. Google Scholar
Schrodt, A., Neubrand, A. & van Eldik, R. (1997). Inorg. Chem. 36, 4579–4584. CSD CrossRef PubMed 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
Zhang, X. & van Eldik, R. (1995). Inorg. Chem. 34, 5606–5614. CrossRef CAS Google Scholar
Zhang, X., van Eldik, R., Koike, T. & Kimura, E. (1993). Inorg. Chem. 32, 5749–5755. CrossRef CAS Google Scholar

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