A tetra­nuclear cubane-like nickel(II) complex with a tridentate salicyl­idene­imine Schiff base ligand: tetra­kis­[μ3-4-methyl-N-(2-oxidophen­yl)salicylideneiminato]tetra­kis­[methano­lnickel(II)] methanol 0.8-solvate

Pavlović, G.; Majer, M.; Cindrić, M.

doi:10.1107/S2056989016017722

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ISSN: 2056-9890

Volume 72| Part 12| December 2016| Pages 1776-1779

https://doi.org/10.1107/S2056989016017722

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A tetranuclear cubane-like nickel(II) complex with a tridentate salicylideneimine Schiff base ligand: tetrakis[μ₃-4-methyl-N-(2-oxidophenyl)salicylideneiminato]tetrakis[methanolnickel(II)] methanol 0.8-solvate

Gordana Pavlović,^a ^* Mihael Majer ^b and Marina Cindrić ^b

^aUniversity of Zagreb, Faculty of Textile Technology, Laboratory of Applied Chemistry, Prilaz baruna Filipovića 28a, HR-10000 Zagreb, Croatia, and ^bUniversity of Zagreb, Faculty of Science, Department of Chemistry, Horvatovac 102a, HR-10000 Zagreb, Croatia
^*Correspondence e-mail: gpavlovic@ttf.hr

Edited by C. Rizzoli, Universita degli Studi di Parma, Italy (Received 4 October 2016; accepted 7 November 2016; online 10 November 2016)

The tetranuclear title complex, [Ni₄(C₁₄H₁₁NO₂)₄(CH₃OH)₄]·0.8CH₃OH, has a distorted cubane topology shaped by four Schiff base ligands. The cubane [Ni₄(μ₃-O₄)] core is formed via the O atoms from the Schiff base ligands. The octahedrally coordinated Ni^II ions occupy alternating vertices of the cube. Each Ni^II ion is coordinated by one O,N,O′-tridentate dianionic ligand, two O atoms of oxidophenyl groups from adjacent ligands and the O atom of a coordinating methanol molecule. The cubane core is stabilized via an intramolecular O—H⋯O hydrogen bond between the hydroxy group of the coordinating methanol molecules and the phenolate O atom of the aldehyde Schiff base fragment. Additional stabilization is obtained via intramolecular C—H⋯O hydrogen bonds involving aromatic C—H groups and the oxygen atoms of adjacent methanol molecules. In the crystal, complex molecules are linked into chains parallel to the c axis via weak C—H⋯O hydrogen bonds. The partial-occupancy disordered methanol solvent molecule has a site occupancy of 0.8 and is linked to the tetranuclear unit via an intermolecular C—H⋯O hydrogen bond involving a phenolate O atom.

Keywords: crystal structure; nickel cubane-like tetramers; Schiff bases.

CCDC reference: 1515300

1. Chemical context

Octahedrally coordinated Ni^II atoms are paramagnetic and spanned by an appropriate bridging ligand. They can be organized into polynuclear units of different nuclearity with potential practical applications as nanomagnetic devices, switches and sensors or single-molecule magnets (Ji et al., 2009 ; Karmakar & Khanra, 2014 ; Kou et al., 2010 ; Osa et al., 2004 ; Perlepe et al., 2014 ; Pardo et al., 2008 ; Papatriantafyllopoulou et al., 2008 ; Polyakov et al., 2012 ). One of the major requirements in designing single-molecule magnets (SMM) is to obtain slight structural changes in enduring metal–organic frameworks. The important subject in this field is the relationship between the magnetic behaviour of the molecule and its microenvironment. It is known that any symmetry decrease manifested as reduced symmetry of the arrangement of ligands around metal atoms (no imposed crystallographic symmetry within complex molecule), crystallographic disorders of terminal groups of the ligand molecules, existence of two or more crystallographically independent complex molecules in one asymmetric unit or weakly interacting solvent molecules (Lawrence et al., 2008 ; Cotton et al., 2007 ) influences the magnetic properties strongly. Although it has been shown that Ni₄O₄ cubane-like Ni units have a rather robust structure with persistent geometrical parameters, even weak interactions influence their magnetic behaviour, causing almost indiscernible distortions of the cubane core. The particular importance of the Ni—μ₃-O—Ni bond angles is emphasized in the modelling of the intramolecular magnetic interactions. Previous investigations showed that ferromagnetic interactions are associated with angles close to 90° and antiferromagnetic interactions with larger angles (Ballester et al., 1992 ; Bertrand et al., 1978 ; Gladfelter et al., 1981 ; Halcrow et al., 1995 ; Petit et al., 2012 ; Zhang et al., 2012 ). Therefore, the cubane Ni₄L₄ topology represents a plethora of possibilities in the design of single-molecule magnets.

2. Structural commentary

In the title compound, each Ni^II ion (Fig. 1) is six-coordinated by one phenolate oxygen atom [1.957 (3)–1.975 (3) Å], one imino nitrogen atom [1.967 (4)–1.976 (4) Å] and the oxygen atom of the N-substituent moiety [2.043 (3)–2.083 (3) Å] from a dianionic tridentate Schiff base ligand as well as by the μ₃-O oxygen atom of the N-substituent moiety of another ligand molecule. The sixth coordination site trans to the μ₃-O oxygen is provided by the oxygen atom from a neutral MeOH monodentate ligand [2.071 (4)-2.137 (4) Å]. Two oxygen atoms and one nitrogen atom from the same salicylaldiminato moiety form two five- and six-membered chelate rings fused across the Ni—N bond. The trend of values of the Ni—O bond lengths is Ni—O(phenolate) < Ni—O(CH₃OH) < Ni—μ₃-O. The bond angles indicate that nickel(II) ions exhibit a distorted octahedral environment with the X—Ni—X (X = O, N) angles in the ranges 77.90 (12)–101.58 (13)° and 163.76 (13)–172.48 (13)° for cis and trans angles, respectively. The deformation from the ideal tetrahedral geometry around the μ₃-O oxygen atoms is also suggested by the values of the Ni—μ₃-O—Ni angles which fall in the range 91.58 (12)–102.38 (13)°. The significant double-bond character of the C—N bonds [1.284 (6)–1.285 (6) Å] clearly indicates the presence of the imino tautomeric form of all four Schiff base ligands. The Csp²—N single bonds are in the range 1.413 (6)–1.427 (6) Å.

Figure 1
The molecular structure of the title compound, with displacement ellipsoids drawn at the 50% probability level. The edges of the Ni₄O₄ cubane are denoted in violet.

3. Supramolecular features

The coordinating methanol molecules participate in the formation of intramolecular hydrogen bonds with the phenolate O atoms of the Schiff base ligand (O11, O21, O31 and O41). These intramolecular hydrogen bonds (Table 1, Fig. 2) span across four of six cubane faces influencing the values of the Ni⋯Ni separations [3.081 (1) –3.323 (1) Å]. The methanol molecule of crystallization interacts with the complex units via an intermolecular hydrogen bond with the phenolate O31 atom. In the crystal, the Ni₄L₄ complex molecules are linked into chains running parallel to the c axis by weak C—H⋯O hydrogen bonds between the C46 aromatic carbon atom and the O11 phenolate oxygen atom (Table 1). In the framework of our research on this type of Ni₄L₄ units, we have published analogous Ni₄L₄ cubane-like units with the N-(2-hydroxy-5-methylphenyl)salicylideneimine ligand (Cindrić et al., 2016 ). In these compounds, similar C—H⋯O hydrogen bonds involving an aromatic C—H group and one phenolate oxygen atom result in the formation of discrete centrosymmetric dimers.

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O13—H13O⋯O21	0.84 (2)	1.89 (3)	2.688 (5)	161 (6)
O23—H23O⋯O31	0.84 (2)	1.87 (2)	2.709 (5)	177 (7)
O33—H33O⋯O41	0.82 (2)	1.88 (3)	2.645 (5)	155 (7)
O43—H43O⋯O11	0.81 (2)	1.93 (3)	2.686 (5)	155 (7)
C46—H46⋯O11ⁱ	0.93	2.55	3.307 (6)	139
C110—H110⋯O23	0.93	2.42	3.177 (6)	138
C210—H210⋯O33	0.93	2.44	3.175 (6)	136
C310—H310⋯O43	0.93	2.48	3.218 (6)	137
C410—H410⋯O13	0.93	2.45	3.189 (6)	136
O1—H11O⋯O31	0.83	2.2100	3.034 (8)	177
Symmetry code: (i) $[x, -y+{\script{1\over 2}}, z-{\script{1\over 2}}]$ .

Figure 2
The supramolecular assembly of the complex units of the title compound via intra- and intermolecular hydrogen bonds. The hydrogen bonds are denoted as follows: intramolecular in magenta, intermolecular with the methanol solvent molecule in orange and intermolecular linking cluster units in blue.

4. Synthesis and crystallization

The title compound was prepared by mixing a methanolic solution of Ni(O₂CMe)₂·4H₂O (1 mmol in 10 ml) and a methanolic solution of the Schiff base ligand N-(2-hydroxy-4-methylphenyl)salicylideneimine (1 mmol in 10 ml) at room temperature. After two days, green prismatic single crystals suitable for X-ray analysis were obtained on slow evaporation of the solvent. Yield 58%: Analysis calculated (without lattice solvent) (%) for C₆₀H₆₀N₄Ni₄O₁₂: C, 57.02; H, 4.78; N, 4.43; Ni, 18.57. Found: C,56.70; H, 4.80; N, 4.29; Ni, 18.50. Spectroscopic analysis, IR (ATR, cm⁻¹): 3406 (b,m), 3056 (m), 3007 (m), 2917 (m), 2793 (m), 1604 (vs), 1531 (s), 1490 (vs), 1378 (m), 1305 (s), 1226 (s), 1127 (s), 1034 (m), 825 (s), 750 (s), 522 (m).

5. Refinement

Crystal data, data collection and structure refinement details are summarized in Table 2. The methanol molecule is disordered and was refined with a site-occupancy factor of 0.80. The C-bound hydrogen atoms were placed in geometrically idealized positions and constrained to ride on their parent atoms, with C—H = 0.93–0.96 Å, and with U_iso(H) = 1.2U_eq(C) or 1.5U_eq(C) for methyl H atoms. A rotating model was used for the methyl groups. The hydroxy H atoms of the coordinating methanol molecules were firstly found in a difference Fourier map and then refined by constraining the C—H bond length to be 0.84 (2) Å and the isotropic displacement parameters to be 1.2 times the equivalent isotropic displacement parameters of the parent oxygen atoms. The hydroxy H atom of the disordered methanol molecule was located in a difference Fourier map and refined with fixed coordinates and U_iso(H) = 1.5U_eq(O). Displacement restraints (SIMU and DELU; Sheldrick, 2015 ) were applied to the disordered partial methanol molecule.

Table 2
Experimental details

Crystal data
Chemical formula	[Ni₄(C₁₄H₁₁NO₂)₄(CH₄O)₄]·0.8CH₄O
M_r	1289.59
Crystal system, space group	Monoclinic, P2₁/c
Temperature (K)	296
a, b, c (Å)	22.5810 (5), 13.7701 (3), 18.5242 (4)
β (°)	92.125 (2)
V (Å³)	5756.0 (2)
Z	4
Radiation type	Mo Kα
μ (mm⁻¹)	1.36
Crystal size (mm)	0.18 × 0.11 × 0.09

Data collection
Diffractometer	Oxford Diffraction Xcalibur Sapphire3
Absorption correction	Multi-scan (CrysAlis PRO; Oxford Diffraction, 2010 $[Oxford Diffraction (2010). CrysAlis PRO. Oxford Diffraction Ltd, Yarnton, England.]$ )
T_min, T_max	0.928, 1.000
No. of measured, independent and observed [I > 2σ(I)] reflections	23546, 12324, 6994
R_int	0.069
(sin θ/λ)_max (Å⁻¹)	0.639

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.068, 0.130, 0.99
No. of reflections	12324
No. of parameters	760
No. of restraints	11
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρ_max, Δρ_min (e Å⁻³)	0.94, −0.52
Computer programs: CrysAlis PRO (Oxford Diffraction, 2010 $[Oxford Diffraction (2010). CrysAlis PRO. Oxford Diffraction Ltd, Yarnton, England.]$ ), SHELXS2014 (Sheldrick, 2008 ), SHELXL2014 (Sheldrick, 2015) and Mercury (Macrae et al., 2006 ).

Supporting information

CCDC reference: 1515300

Crystal structure: contains datablocks I, global. DOI: https://doi.org/10.1107/S2056989016017722/rz5196sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S2056989016017722/rz5196Isup2.hkl

checkCIF report

Computing details top

Data collection: CrysAlis PRO (Oxford Diffraction, 2010); cell refinement: CrysAlis PRO (Oxford Diffraction, 2010); data reduction: CrysAlis PRO (Oxford Diffraction, 2010); program(s) used to solve structure: SHELXS2014 (Sheldrick, 2008); program(s) used to refine structure: SHELXL2014 (Sheldrick, 2015); molecular graphics: Mercury (Macrae et al., 2006); software used to prepare material for publication: SHELXL2014 (Sheldrick, 2015).

Tetrakis[µ₃-4-methyl-N-(2-oxidophenyl)salicylideneiminato]tetrakis[methanolnickel(II)] methanol 0.8-solvate top

Crystal data top

[Ni₄(C₁₄H₁₁NO₂)₄(CH₄O)₄]·0.8CH₄O	D_x = 1.488 Mg m⁻³
M_r = 1289.59	Melting point: 651 K
Monoclinic, P2₁/c	Mo Kα radiation, λ = 0.71073 Å
a = 22.5810 (5) Å	Cell parameters from 4839 reflections
b = 13.7701 (3) Å	θ = 4.1–29.0°
c = 18.5242 (4) Å	µ = 1.36 mm⁻¹
β = 92.125 (2)°	T = 296 K
V = 5756.0 (2) Å³	Prism, green
Z = 4	0.18 × 0.11 × 0.09 mm
F(000) = 2682

Data collection top

Oxford Diffraction Xcalibur Sapphire3 diffractometer	6994 reflections with I > 2σ(I)
Radiation source: Enhance (Mo) X-ray Source	R_int = 0.069
ω scans	θ_max = 27.0°, θ_min = 4.1°
Absorption correction: multi-scan (CrysAlis PRO; Oxford Diffraction, 2010)	h = −11→28
T_min = 0.928, T_max = 1.000	k = −15→17
23546 measured reflections	l = −23→23
12324 independent reflections	500 standard reflections every 90 min

Refinement top

Refinement on F²	11 restraints
Least-squares matrix: full	Hydrogen site location: mixed
R[F² > 2σ(F²)] = 0.068	H atoms treated by a mixture of independent and constrained refinement
wR(F²) = 0.130	w = 1/[σ²(F_o²) + (0.0392P)²] where P = (F_o² + 2F_c²)/3
S = 0.99	(Δ/σ)_max < 0.001
12324 reflections	Δρ_max = 0.94 e Å⁻³
760 parameters	Δρ_min = −0.52 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)
Ni1	0.22977 (3)	0.33062 (4)	0.22684 (3)	0.01959 (16)
Ni2	0.28942 (3)	0.53003 (4)	0.20271 (4)	0.02273 (17)
Ni3	0.19370 (3)	0.47067 (4)	0.08836 (3)	0.02057 (16)
Ni4	0.30539 (3)	0.34270 (4)	0.09204 (3)	0.02114 (17)
N11	0.14516 (18)	0.3221 (3)	0.2498 (2)	0.0212 (10)
N21	0.36757 (19)	0.5812 (3)	0.1782 (2)	0.0243 (10)
N31	0.11291 (18)	0.4170 (3)	0.0853 (2)	0.0211 (10)
N41	0.39195 (18)	0.3621 (3)	0.0962 (2)	0.0233 (10)
O11	0.24166 (15)	0.1885 (2)	0.22879 (18)	0.0241 (8)
O13	0.25424 (16)	0.3688 (2)	0.33300 (19)	0.0275 (9)
O21	0.30451 (15)	0.5418 (2)	0.30751 (18)	0.0274 (9)
O22	0.28278 (14)	0.4994 (2)	0.09477 (18)	0.0224 (8)
O23	0.24994 (16)	0.6682 (2)	0.1800 (2)	0.0322 (9)
O31	0.16684 (15)	0.6065 (2)	0.08120 (19)	0.0275 (9)
O32	0.21570 (14)	0.3282 (2)	0.10809 (16)	0.0185 (7)
O33	0.20342 (16)	0.4437 (2)	−0.02057 (19)	0.0273 (9)
O41	0.30032 (15)	0.3357 (2)	−0.01353 (17)	0.0257 (8)
O42	0.31442 (14)	0.3721 (2)	0.20030 (17)	0.0207 (8)
O43	0.31349 (17)	0.1940 (2)	0.1165 (2)	0.0309 (9)
O12	0.20613 (14)	0.4745 (2)	0.20637 (17)	0.0195 (8)
C11	0.1986 (2)	0.1234 (3)	0.2342 (3)	0.0236 (12)
C12	0.1378 (2)	0.1468 (3)	0.2425 (3)	0.0238 (12)
C13	0.0963 (3)	0.0704 (4)	0.2466 (3)	0.0299 (13)
H13	0.0566	0.0858	0.2515	0.036*
C14	0.1118 (3)	−0.0238 (4)	0.2436 (3)	0.0371 (15)
H14	0.0834	−0.0724	0.2461	0.045*
C15	0.1714 (3)	−0.0472 (4)	0.2369 (3)	0.0444 (17)
H15	0.1830	−0.1119	0.2356	0.053*
C16	0.2131 (3)	0.0253 (4)	0.2321 (3)	0.0341 (14)
H16	0.2525	0.0079	0.2273	0.041*
C17	0.1147 (2)	0.2434 (3)	0.2504 (3)	0.0250 (12)
H17	0.0741	0.2493	0.2565	0.030*
C18	0.1214 (2)	0.4156 (3)	0.2649 (3)	0.0222 (12)
C19	0.1570 (2)	0.4941 (3)	0.2444 (3)	0.0234 (12)
C21	0.3566 (2)	0.5616 (4)	0.3385 (3)	0.0294 (13)
C22	0.4074 (2)	0.5907 (3)	0.3019 (3)	0.0284 (13)
C23	0.4604 (3)	0.6102 (4)	0.3420 (3)	0.0374 (15)
H23	0.4938	0.6291	0.3176	0.045*
C24	0.4641 (3)	0.6022 (4)	0.4154 (4)	0.0434 (16)
H24	0.4997	0.6147	0.4406	0.052*
C25	0.4146 (3)	0.5752 (4)	0.4517 (3)	0.0402 (16)
H25	0.4167	0.5701	0.5018	0.048*
C26	0.3621 (3)	0.5558 (4)	0.4143 (3)	0.0365 (15)
H26	0.3291	0.5382	0.4400	0.044*
C27	0.4100 (2)	0.6017 (3)	0.2238 (3)	0.0300 (14)
H27	0.4450	0.6255	0.2056	0.036*
C28	0.3690 (2)	0.5989 (3)	0.1032 (3)	0.0240 (12)
C29	0.3212 (2)	0.5602 (3)	0.0612 (3)	0.0235 (12)
C31	0.1121 (2)	0.6349 (4)	0.0894 (3)	0.0249 (12)
C32	0.0624 (2)	0.5713 (4)	0.0934 (3)	0.0240 (12)
C33	0.0055 (2)	0.6113 (4)	0.1023 (3)	0.0310 (13)
H33	−0.0267	0.5696	0.1052	0.037*
C34	−0.0039 (3)	0.7102 (4)	0.1070 (3)	0.0334 (14)
H34	−0.0417	0.7350	0.1128	0.040*
C35	0.0446 (3)	0.7713 (4)	0.1028 (3)	0.0338 (14)
H35	0.0391	0.8382	0.1057	0.041*
C36	0.1001 (2)	0.7353 (3)	0.0947 (3)	0.0299 (13)
H36	0.1315	0.7787	0.0924	0.036*
C37	0.0650 (2)	0.4667 (4)	0.0890 (3)	0.0249 (12)
H37	0.0294	0.4329	0.0889	0.030*
C38	0.1137 (2)	0.3143 (3)	0.0758 (3)	0.0206 (11)
C39	0.1696 (2)	0.2716 (3)	0.0836 (2)	0.0171 (11)
C41	0.3423 (2)	0.3634 (3)	−0.0560 (3)	0.0262 (12)
C42	0.4017 (2)	0.3897 (3)	−0.0316 (3)	0.0252 (12)
C43	0.4411 (2)	0.4243 (3)	−0.0826 (3)	0.0290 (13)
H43	0.4788	0.4435	−0.0664	0.035*
C44	0.4271 (3)	0.4312 (4)	−0.1544 (3)	0.0342 (14)
H44	0.4543	0.4545	−0.1867	0.041*
C45	0.3702 (3)	0.4022 (4)	−0.1782 (3)	0.0344 (14)
H45	0.3598	0.4054	−0.2272	0.041*
C46	0.3298 (2)	0.3693 (3)	−0.1312 (3)	0.0292 (13)
H46	0.2927	0.3501	−0.1493	0.035*
C47	0.4230 (2)	0.3847 (3)	0.0420 (3)	0.0248 (12)
H47	0.4628	0.3990	0.0514	0.030*
C48	0.4152 (2)	0.3554 (3)	0.1684 (3)	0.0242 (12)
C49	0.3717 (2)	0.3562 (3)	0.2224 (3)	0.0211 (12)
C110	0.1400 (2)	0.5863 (3)	0.2631 (3)	0.0236 (12)
H110	0.1637	0.6384	0.2507	0.028*
C111	0.0882 (2)	0.6046 (4)	0.3001 (3)	0.0297 (13)
C112	0.0537 (2)	0.5253 (4)	0.3188 (3)	0.0305 (13)
H112	0.0187	0.5354	0.3428	0.037*
C113	0.0707 (2)	0.4323 (4)	0.3022 (3)	0.0281 (13)
H113	0.0477	0.3800	0.3163	0.034*
C114	0.0694 (3)	0.7072 (4)	0.3181 (3)	0.0442 (17)
H11A	0.0475	0.7345	0.2775	0.066*
H11B	0.1038	0.7461	0.3289	0.066*
H11C	0.0447	0.7060	0.3592	0.066*
C115	0.2231 (3)	0.3516 (4)	0.3974 (3)	0.0368 (15)
H11D	0.1966	0.4047	0.4055	0.055*
H11E	0.2510	0.3462	0.4376	0.055*
H11F	0.2009	0.2924	0.3925	0.055*
C210	0.3156 (2)	0.5828 (3)	−0.0120 (3)	0.0269 (13)
H210	0.2835	0.5587	−0.0394	0.032*
C211	0.3570 (3)	0.6408 (4)	−0.0447 (3)	0.0343 (15)
C212	0.4047 (3)	0.6756 (4)	−0.0026 (3)	0.0350 (15)
H212	0.4333	0.7131	−0.0242	0.042*
C213	0.4104 (2)	0.6562 (3)	0.0697 (3)	0.0327 (14)
H213	0.4423	0.6817	0.0966	0.039*
C214	0.3498 (3)	0.6647 (4)	−0.1238 (3)	0.0439 (16)
H21A	0.3089	0.6777	−0.1357	0.066*
H21B	0.3629	0.6108	−0.1518	0.066*
H21C	0.3731	0.7210	−0.1342	0.066*
C215	0.2791 (3)	0.7600 (5)	0.1679 (4)	0.076 (3)
H21D	0.3086	0.7711	0.2056	0.115*
H21E	0.2504	0.8114	0.1679	0.115*
H21F	0.2977	0.7584	0.1221	0.115*
C310	0.1757 (2)	0.1729 (3)	0.0683 (2)	0.0209 (11)
H310	0.2132	0.1448	0.0715	0.025*
C311	0.1274 (2)	0.1162 (3)	0.0485 (3)	0.0254 (12)
C312	0.0722 (3)	0.1590 (4)	0.0433 (3)	0.0325 (14)
H312	0.0392	0.1213	0.0309	0.039*
C313	0.0651 (2)	0.2569 (4)	0.0562 (3)	0.0280 (13)
H313	0.0276	0.2846	0.0518	0.034*
C314	0.1350 (3)	0.0092 (3)	0.0349 (3)	0.0392 (15)
H31A	0.1158	−0.0077	−0.0104	0.059*
H31B	0.1176	−0.0270	0.0730	0.059*
H31C	0.1765	−0.0058	0.0335	0.059*
C315	0.1592 (2)	0.4417 (4)	−0.0765 (3)	0.0440 (16)
H31D	0.1351	0.3848	−0.0716	0.066*
H31E	0.1775	0.4404	−0.1225	0.066*
H31F	0.1348	0.4986	−0.0736	0.066*
C410	0.3899 (2)	0.3465 (3)	0.2940 (3)	0.0223 (12)
H410	0.3617	0.3438	0.3293	0.027*
C411	0.4501 (2)	0.3407 (3)	0.3147 (3)	0.0255 (12)
C412	0.4914 (2)	0.3417 (3)	0.2607 (3)	0.0316 (13)
H412	0.5316	0.3385	0.2737	0.038*
C413	0.4745 (2)	0.3474 (3)	0.1891 (3)	0.0299 (13)
H413	0.5030	0.3458	0.1542	0.036*
C414	0.4682 (2)	0.3359 (4)	0.3931 (3)	0.0337 (14)
H41A	0.4592	0.2727	0.4116	0.051*
H41B	0.4470	0.3842	0.4192	0.051*
H41C	0.5100	0.3476	0.3989	0.051*
C415	0.3597 (3)	0.1311 (4)	0.1015 (4)	0.059 (2)
H41D	0.3731	0.1439	0.0539	0.088*
H41E	0.3460	0.0652	0.1041	0.088*
H41F	0.3917	0.1407	0.1363	0.088*
H13O	0.267 (3)	0.426 (2)	0.335 (3)	0.071*
H23O	0.224 (2)	0.648 (4)	0.151 (3)	0.071*
H33O	0.227 (2)	0.399 (3)	−0.026 (4)	0.071*
H43O	0.299 (3)	0.180 (4)	0.154 (2)	0.071*
O1	0.1877 (4)	0.6934 (5)	−0.0662 (4)	0.114 (3)	0.8
H11O	0.1835	0.6704	−0.0255	0.137*	0.8
C1	0.2122 (4)	0.7851 (6)	−0.0592 (6)	0.079 (3)	0.8
H1A	0.1812	0.8320	−0.0537	0.118*	0.8
H1B	0.2336	0.8002	−0.1016	0.118*	0.8
H1C	0.2387	0.7869	−0.0176	0.118*	0.8

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Ni1	0.0153 (3)	0.0220 (3)	0.0217 (4)	0.0002 (3)	0.0027 (3)	0.0003 (3)
Ni2	0.0162 (4)	0.0247 (3)	0.0274 (4)	−0.0023 (3)	0.0025 (3)	−0.0023 (3)
Ni3	0.0146 (3)	0.0231 (3)	0.0242 (4)	−0.0018 (3)	0.0024 (3)	0.0011 (3)
Ni4	0.0146 (3)	0.0256 (3)	0.0234 (4)	−0.0013 (3)	0.0029 (3)	−0.0025 (3)
N11	0.018 (2)	0.025 (2)	0.021 (2)	0.000 (2)	0.0033 (19)	0.0007 (18)
N21	0.020 (2)	0.021 (2)	0.032 (3)	−0.002 (2)	0.001 (2)	−0.0069 (19)
N31	0.020 (2)	0.022 (2)	0.021 (2)	−0.003 (2)	0.004 (2)	0.0027 (18)
N41	0.015 (2)	0.026 (2)	0.029 (3)	0.0000 (19)	0.006 (2)	−0.0075 (19)
O11	0.020 (2)	0.0251 (18)	0.027 (2)	0.0013 (16)	0.0009 (17)	0.0021 (15)
O13	0.025 (2)	0.0307 (19)	0.027 (2)	−0.0031 (18)	0.0051 (18)	−0.0027 (17)
O21	0.019 (2)	0.033 (2)	0.029 (2)	−0.0055 (17)	0.0020 (17)	−0.0085 (16)
O22	0.0179 (19)	0.0233 (18)	0.026 (2)	−0.0032 (15)	0.0043 (16)	0.0035 (15)
O23	0.025 (2)	0.0209 (19)	0.052 (3)	−0.0084 (18)	0.0059 (19)	−0.0012 (18)
O31	0.0141 (19)	0.0273 (19)	0.041 (2)	0.0027 (17)	0.0059 (18)	0.0044 (16)
O32	0.0133 (18)	0.0243 (17)	0.0186 (18)	−0.0042 (16)	0.0079 (15)	−0.0012 (15)
O33	0.020 (2)	0.040 (2)	0.022 (2)	−0.0008 (17)	0.0019 (17)	−0.0006 (17)
O41	0.022 (2)	0.0330 (19)	0.023 (2)	−0.0055 (17)	0.0057 (17)	−0.0035 (16)
O42	0.0150 (19)	0.0256 (18)	0.0214 (19)	−0.0016 (16)	0.0002 (16)	−0.0005 (15)
O43	0.027 (2)	0.028 (2)	0.039 (3)	0.0062 (18)	0.0128 (19)	−0.0004 (18)
O12	0.0134 (17)	0.0238 (17)	0.0219 (19)	−0.0028 (16)	0.0084 (15)	−0.0012 (15)
C11	0.029 (3)	0.027 (3)	0.015 (3)	−0.003 (3)	0.001 (2)	0.004 (2)
C12	0.028 (3)	0.026 (3)	0.018 (3)	−0.003 (3)	0.000 (2)	0.001 (2)
C13	0.030 (3)	0.033 (3)	0.026 (3)	−0.007 (3)	0.003 (3)	−0.007 (2)
C14	0.037 (4)	0.031 (3)	0.044 (4)	−0.011 (3)	0.012 (3)	−0.007 (3)
C15	0.050 (4)	0.028 (3)	0.056 (4)	0.002 (3)	0.008 (4)	−0.004 (3)
C16	0.035 (4)	0.027 (3)	0.041 (4)	0.006 (3)	0.009 (3)	−0.001 (3)
C17	0.019 (3)	0.031 (3)	0.025 (3)	0.001 (3)	0.004 (2)	−0.001 (2)
C18	0.018 (3)	0.027 (3)	0.021 (3)	0.002 (2)	0.001 (2)	0.005 (2)
C19	0.023 (3)	0.027 (3)	0.020 (3)	−0.003 (2)	−0.002 (2)	−0.001 (2)
C21	0.025 (3)	0.028 (3)	0.035 (3)	−0.004 (3)	0.004 (3)	−0.011 (3)
C22	0.022 (3)	0.022 (3)	0.040 (4)	0.001 (2)	−0.003 (3)	−0.010 (2)
C23	0.024 (3)	0.035 (3)	0.052 (4)	0.001 (3)	−0.008 (3)	−0.011 (3)
C24	0.032 (4)	0.039 (3)	0.058 (5)	−0.004 (3)	−0.018 (3)	−0.013 (3)
C25	0.045 (4)	0.036 (3)	0.039 (4)	−0.001 (3)	−0.011 (3)	−0.007 (3)
C26	0.037 (4)	0.029 (3)	0.044 (4)	−0.002 (3)	0.003 (3)	−0.006 (3)
C27	0.018 (3)	0.024 (3)	0.048 (4)	−0.004 (2)	0.007 (3)	−0.011 (3)
C28	0.020 (3)	0.020 (3)	0.032 (3)	−0.001 (2)	0.007 (3)	−0.004 (2)
C29	0.020 (3)	0.020 (3)	0.031 (3)	−0.003 (2)	0.010 (3)	−0.001 (2)
C31	0.023 (3)	0.032 (3)	0.019 (3)	0.003 (3)	−0.001 (2)	0.002 (2)
C32	0.023 (3)	0.029 (3)	0.020 (3)	0.002 (3)	0.003 (2)	0.005 (2)
C33	0.023 (3)	0.041 (3)	0.028 (3)	0.002 (3)	0.002 (3)	−0.003 (3)
C34	0.025 (3)	0.043 (3)	0.032 (3)	0.010 (3)	0.004 (3)	−0.008 (3)
C35	0.033 (4)	0.032 (3)	0.036 (4)	0.006 (3)	0.005 (3)	−0.003 (3)
C36	0.029 (3)	0.023 (3)	0.039 (4)	0.000 (3)	0.010 (3)	0.003 (2)
C37	0.012 (3)	0.035 (3)	0.028 (3)	−0.005 (3)	0.005 (2)	0.007 (2)
C38	0.020 (3)	0.026 (3)	0.016 (3)	0.000 (2)	0.007 (2)	0.000 (2)
C39	0.019 (3)	0.022 (3)	0.011 (2)	−0.004 (2)	0.003 (2)	0.003 (2)
C41	0.025 (3)	0.023 (3)	0.032 (3)	−0.001 (2)	0.003 (3)	−0.005 (2)
C42	0.020 (3)	0.027 (3)	0.030 (3)	−0.002 (2)	0.008 (3)	−0.004 (2)
C43	0.019 (3)	0.029 (3)	0.040 (4)	−0.002 (2)	0.006 (3)	−0.003 (3)
C44	0.031 (4)	0.040 (3)	0.033 (4)	−0.003 (3)	0.018 (3)	0.003 (3)
C45	0.031 (3)	0.043 (3)	0.030 (3)	0.002 (3)	0.011 (3)	0.000 (3)
C46	0.026 (3)	0.032 (3)	0.030 (3)	−0.008 (3)	0.001 (3)	−0.003 (2)
C47	0.016 (3)	0.025 (3)	0.034 (3)	−0.004 (2)	0.001 (3)	−0.004 (2)
C48	0.022 (3)	0.023 (3)	0.028 (3)	0.000 (2)	−0.001 (2)	−0.007 (2)
C49	0.020 (3)	0.016 (2)	0.027 (3)	−0.002 (2)	−0.003 (2)	−0.001 (2)
C110	0.023 (3)	0.023 (3)	0.025 (3)	0.002 (2)	0.006 (2)	0.001 (2)
C111	0.028 (3)	0.035 (3)	0.027 (3)	0.004 (3)	0.005 (3)	0.002 (2)
C112	0.019 (3)	0.040 (3)	0.033 (3)	0.011 (3)	0.010 (3)	0.008 (3)
C113	0.023 (3)	0.032 (3)	0.030 (3)	0.001 (3)	0.009 (3)	0.006 (2)
C114	0.042 (4)	0.032 (3)	0.060 (4)	0.008 (3)	0.017 (4)	−0.008 (3)
C115	0.032 (3)	0.052 (4)	0.028 (3)	0.005 (3)	0.015 (3)	0.007 (3)
C210	0.020 (3)	0.024 (3)	0.038 (3)	0.003 (2)	0.010 (3)	0.001 (2)
C211	0.035 (4)	0.027 (3)	0.042 (4)	0.006 (3)	0.018 (3)	0.005 (3)
C212	0.028 (3)	0.025 (3)	0.053 (4)	−0.003 (3)	0.020 (3)	0.007 (3)
C213	0.023 (3)	0.026 (3)	0.050 (4)	−0.005 (3)	0.014 (3)	−0.001 (3)
C214	0.051 (4)	0.034 (3)	0.048 (4)	−0.003 (3)	0.019 (3)	0.011 (3)
C215	0.056 (5)	0.062 (5)	0.112 (7)	0.004 (4)	0.006 (5)	−0.026 (5)
C310	0.021 (3)	0.021 (3)	0.021 (3)	−0.001 (2)	0.003 (2)	0.002 (2)
C311	0.032 (3)	0.026 (3)	0.018 (3)	−0.012 (3)	0.005 (3)	0.002 (2)
C312	0.036 (4)	0.033 (3)	0.029 (3)	−0.016 (3)	−0.003 (3)	0.003 (3)
C313	0.023 (3)	0.039 (3)	0.022 (3)	−0.007 (3)	−0.001 (3)	0.008 (2)
C314	0.041 (4)	0.028 (3)	0.048 (4)	−0.010 (3)	0.001 (3)	−0.010 (3)
C315	0.025 (3)	0.075 (4)	0.032 (4)	−0.002 (3)	−0.003 (3)	0.001 (3)
C410	0.022 (3)	0.018 (3)	0.027 (3)	0.002 (2)	0.003 (2)	−0.006 (2)
C411	0.023 (3)	0.015 (2)	0.038 (3)	0.000 (2)	−0.004 (3)	−0.003 (2)
C412	0.017 (3)	0.033 (3)	0.044 (4)	−0.002 (3)	−0.006 (3)	−0.007 (3)
C413	0.016 (3)	0.034 (3)	0.041 (4)	−0.003 (3)	0.005 (3)	−0.003 (3)
C414	0.032 (3)	0.030 (3)	0.038 (3)	0.004 (3)	−0.011 (3)	−0.006 (3)
C415	0.059 (5)	0.047 (4)	0.073 (5)	0.023 (4)	0.033 (4)	0.010 (4)
O1	0.112 (7)	0.108 (5)	0.122 (7)	0.010 (5)	0.007 (6)	0.021 (5)
C1	0.057 (7)	0.043 (5)	0.138 (10)	0.012 (5)	0.023 (7)	0.001 (6)

Geometric parameters (Å, º) top

Ni1—O11	1.975 (3)	C33—H33	0.9300
Ni1—N11	1.976 (4)	C34—C35	1.386 (7)
Ni1—O42	2.072 (3)	C34—H34	0.9300
Ni1—O12	2.083 (3)	C35—C36	1.361 (7)
Ni1—O13	2.090 (4)	C35—H35	0.9300
Ni1—O32	2.211 (3)	C36—H36	0.9300
Ni2—O21	1.965 (4)	C37—H37	0.9300
Ni2—N21	1.969 (4)	C38—C313	1.390 (7)
Ni2—O12	2.034 (3)	C38—C39	1.394 (6)
Ni2—O22	2.043 (3)	C39—C310	1.396 (6)
Ni2—O23	2.137 (4)	C41—C46	1.415 (7)
Ni2—O42	2.247 (3)	C41—C42	1.446 (7)
Ni3—N31	1.967 (4)	C42—C43	1.404 (7)
Ni3—O31	1.969 (3)	C42—C47	1.431 (7)
Ni3—O22	2.049 (3)	C43—C44	1.360 (7)
Ni3—O32	2.053 (3)	C43—H43	0.9300
Ni3—O33	2.071 (4)	C44—C45	1.401 (8)
Ni3—O12	2.194 (3)	C44—H44	0.9300
Ni4—O41	1.957 (3)	C45—C46	1.360 (7)
Ni4—N41	1.971 (4)	C45—H45	0.9300
Ni4—O42	2.049 (3)	C46—H46	0.9300
Ni4—O32	2.067 (3)	C47—H47	0.9300
Ni4—O43	2.103 (3)	C48—C413	1.384 (7)
Ni4—O22	2.219 (3)	C48—C49	1.427 (7)
N11—C17	1.285 (6)	C49—C410	1.382 (7)
N11—C18	1.427 (6)	C110—C111	1.400 (7)
N21—C27	1.285 (6)	C110—H110	0.9300
N21—C28	1.413 (6)	C111—C112	1.393 (7)
N31—C37	1.284 (6)	C111—C114	1.517 (7)
N31—C38	1.425 (6)	C112—C113	1.377 (6)
N41—C47	1.285 (6)	C112—H112	0.9300
N41—C48	1.422 (6)	C113—H113	0.9300
O11—C11	1.328 (6)	C114—H11A	0.9600
O13—C115	1.427 (6)	C114—H11B	0.9600
O13—H13O	0.836 (19)	C114—H11C	0.9600
O21—C21	1.318 (6)	C115—H11D	0.9600
O22—C29	1.371 (5)	C115—H11E	0.9600
O23—C215	1.446 (7)	C115—H11F	0.9600
O23—H23O	0.84 (2)	C210—C211	1.386 (7)
O31—C31	1.310 (6)	C210—H210	0.9300
O32—C39	1.365 (5)	C211—C212	1.390 (8)
O33—C315	1.414 (6)	C211—C214	1.505 (7)
O33—H33O	0.82 (2)	C212—C213	1.367 (7)
O41—C41	1.310 (6)	C212—H212	0.9300
O42—C49	1.359 (6)	C213—H213	0.9300
O43—C415	1.391 (6)	C214—H21A	0.9600
O43—H43O	0.81 (2)	C214—H21B	0.9600
O12—C19	1.364 (5)	C214—H21C	0.9600
C11—C16	1.391 (6)	C215—H21D	0.9600
C11—C12	1.424 (7)	C215—H21E	0.9600
C12—C13	1.413 (7)	C215—H21F	0.9600
C12—C17	1.438 (6)	C310—C311	1.381 (7)
C13—C14	1.345 (7)	C310—H310	0.9300
C13—H13	0.9300	C311—C312	1.379 (7)
C14—C15	1.392 (8)	C311—C314	1.505 (6)
C14—H14	0.9300	C312—C313	1.379 (7)
C15—C16	1.377 (7)	C312—H312	0.9300
C15—H15	0.9300	C313—H313	0.9300
C16—H16	0.9300	C314—H31A	0.9600
C17—H17	0.9300	C314—H31B	0.9600
C18—C113	1.377 (6)	C314—H31C	0.9600
C18—C19	1.408 (6)	C315—H31D	0.9600
C19—C110	1.374 (6)	C315—H31E	0.9600
C21—C26	1.407 (7)	C315—H31F	0.9600
C21—C22	1.412 (7)	C410—C411	1.399 (7)
C22—C23	1.410 (7)	C410—H410	0.9300
C22—C27	1.458 (7)	C411—C412	1.393 (7)
C23—C24	1.364 (8)	C411—C414	1.496 (7)
C23—H23	0.9300	C412—C413	1.369 (7)
C24—C25	1.376 (8)	C412—H412	0.9300
C24—H24	0.9300	C413—H413	0.9300
C25—C26	1.378 (8)	C414—H41A	0.9600
C25—H25	0.9300	C414—H41B	0.9600
C26—H26	0.9300	C414—H41C	0.9600
C27—H27	0.9300	C415—H41D	0.9600
C28—C213	1.388 (7)	C415—H41E	0.9600
C28—C29	1.410 (7)	C415—H41F	0.9600
C29—C210	1.393 (7)	O1—C1	1.383 (9)
C31—C36	1.413 (6)	O1—H11O	0.827 (8)
C31—C32	1.427 (7)	C1—H1A	0.9600
C32—C33	1.413 (7)	C1—H1B	0.9600
C32—C37	1.444 (6)	C1—H1C	0.9600
C33—C34	1.382 (7)

O11—Ni1—N11	93.97 (15)	C29—C28—N21	115.7 (4)
O11—Ni1—O42	98.72 (13)	O22—C29—C210	122.8 (5)
N11—Ni1—O42	167.26 (14)	O22—C29—C28	117.6 (5)
O11—Ni1—O12	168.32 (14)	C210—C29—C28	119.6 (5)
N11—Ni1—O12	81.52 (14)	O31—C31—C36	119.0 (5)
O42—Ni1—O12	85.81 (12)	O31—C31—C32	124.7 (4)
O11—Ni1—O13	101.58 (13)	C36—C31—C32	116.3 (5)
N11—Ni1—O13	92.06 (15)	C33—C32—C31	119.1 (5)
O42—Ni1—O13	86.55 (13)	C33—C32—C37	115.7 (5)
O12—Ni1—O13	89.38 (13)	C31—C32—C37	125.1 (5)
O11—Ni1—O32	91.02 (12)	C34—C33—C32	122.3 (5)
N11—Ni1—O32	96.28 (14)	C34—C33—H33	118.8
O42—Ni1—O32	82.40 (12)	C32—C33—H33	118.8
O12—Ni1—O32	78.86 (12)	C33—C34—C35	118.1 (5)
O13—Ni1—O32	164.38 (12)	C33—C34—H34	120.9
O21—Ni2—N21	94.24 (16)	C35—C34—H34	120.9
O21—Ni2—O12	97.17 (13)	C36—C35—C34	121.1 (5)
N21—Ni2—O12	168.59 (16)	C36—C35—H35	119.4
O21—Ni2—O22	170.86 (14)	C34—C35—H35	119.4
N21—Ni2—O22	83.23 (15)	C35—C36—C31	123.0 (5)
O12—Ni2—O22	85.45 (13)	C35—C36—H36	118.5
O21—Ni2—O23	100.18 (14)	C31—C36—H36	118.5
N21—Ni2—O23	90.40 (15)	N31—C37—C32	124.8 (5)
O12—Ni2—O23	87.82 (13)	N31—C37—H37	117.6
O22—Ni2—O23	88.64 (14)	C32—C37—H37	117.6
O21—Ni2—O42	93.72 (13)	C313—C38—C39	119.3 (4)
N21—Ni2—O42	96.52 (14)	C313—C38—N31	125.7 (5)
O12—Ni2—O42	82.54 (12)	C39—C38—N31	114.9 (4)
O22—Ni2—O42	77.90 (12)	O32—C39—C38	118.0 (4)
O23—Ni2—O42	163.98 (13)	O32—C39—C310	122.9 (4)
N31—Ni3—O31	94.13 (15)	C38—C39—C310	119.1 (4)
N31—Ni3—O22	168.96 (14)	O41—C41—C46	119.1 (5)
O31—Ni3—O22	96.86 (13)	O41—C41—C42	124.7 (5)
N31—Ni3—O32	82.19 (14)	C46—C41—C42	116.2 (5)
O31—Ni3—O32	172.48 (13)	C43—C42—C47	117.3 (5)
O22—Ni3—O32	86.78 (12)	C43—C42—C41	118.6 (5)
N31—Ni3—O33	92.10 (16)	C47—C42—C41	124.1 (5)
O31—Ni3—O33	98.53 (14)	C44—C43—C42	123.4 (5)
O22—Ni3—O33	87.24 (14)	C44—C43—H43	118.3
O32—Ni3—O33	88.19 (13)	C42—C43—H43	118.3
N31—Ni3—O12	96.99 (14)	C43—C44—C45	117.8 (5)
O31—Ni3—O12	94.12 (13)	C43—C44—H44	121.1
O22—Ni3—O12	81.29 (12)	C45—C44—H44	121.1
O32—Ni3—O12	79.88 (12)	C46—C45—C44	121.5 (6)
O33—Ni3—O12	163.85 (13)	C46—C45—H45	119.3
O41—Ni4—N41	93.86 (16)	C44—C45—H45	119.3
O41—Ni4—O42	171.08 (13)	C45—C46—C41	122.4 (5)
N41—Ni4—O42	82.65 (15)	C45—C46—H46	118.8
O41—Ni4—O32	96.76 (14)	C41—C46—H46	118.8
N41—Ni4—O32	169.24 (15)	N41—C47—C42	125.6 (5)
O42—Ni4—O32	86.60 (12)	N41—C47—H47	117.2
O41—Ni4—O43	99.72 (14)	C42—C47—H47	117.2
N41—Ni4—O43	92.60 (15)	C413—C48—N41	125.8 (5)
O42—Ni4—O43	88.67 (13)	C413—C48—C49	119.4 (5)
O32—Ni4—O43	87.31 (13)	N41—C48—C49	114.7 (4)
O41—Ni4—O22	93.77 (13)	O42—C49—C410	123.5 (5)
N41—Ni4—O22	95.49 (14)	O42—C49—C48	117.5 (4)
O42—Ni4—O22	78.46 (12)	C410—C49—C48	118.9 (5)
O32—Ni4—O22	82.13 (12)	C19—C110—C111	122.4 (5)
O43—Ni4—O22	163.76 (13)	C19—C110—H110	118.8
C17—N11—C18	123.6 (4)	C111—C110—H110	118.8
C17—N11—Ni1	125.1 (3)	C112—C111—C110	117.8 (5)
C18—N11—Ni1	111.3 (3)	C112—C111—C114	120.7 (5)
C27—N21—C28	124.4 (5)	C110—C111—C114	121.4 (5)
C27—N21—Ni2	125.5 (4)	C113—C112—C111	120.6 (5)
C28—N21—Ni2	110.0 (3)	C113—C112—H112	119.7
C37—N31—C38	123.4 (4)	C111—C112—H112	119.7
C37—N31—Ni3	125.5 (3)	C112—C113—C18	120.8 (5)
C38—N31—Ni3	111.1 (3)	C112—C113—H113	119.6
C47—N41—C48	123.9 (4)	C18—C113—H113	119.6
C47—N41—Ni4	124.9 (4)	C111—C114—H11A	109.5
C48—N41—Ni4	111.0 (3)	C111—C114—H11B	109.5
C11—O11—Ni1	124.8 (3)	H11A—C114—H11B	109.5
C115—O13—Ni1	128.6 (3)	C111—C114—H11C	109.5
C115—O13—H13O	108 (4)	H11A—C114—H11C	109.5
Ni1—O13—H13O	111 (5)	H11B—C114—H11C	109.5
C21—O21—Ni2	124.5 (3)	O13—C115—H11D	109.5
C29—O22—Ni2	107.1 (3)	O13—C115—H11E	109.5
C29—O22—Ni3	136.7 (3)	H11D—C115—H11E	109.5
Ni2—O22—Ni3	97.63 (13)	O13—C115—H11F	109.5
C29—O22—Ni4	115.7 (3)	H11D—C115—H11F	109.5
Ni2—O22—Ni4	102.38 (13)	H11E—C115—H11F	109.5
Ni3—O22—Ni4	92.11 (12)	C211—C210—C29	121.0 (5)
C215—O23—Ni2	128.3 (4)	C211—C210—H210	119.5
C215—O23—H23O	120 (5)	C29—C210—H210	119.5
Ni2—O23—H23O	97 (4)	C210—C211—C212	118.4 (5)
C31—O31—Ni3	124.4 (3)	C210—C211—C214	120.1 (6)
C39—O32—Ni3	108.0 (3)	C212—C211—C214	121.6 (5)
C39—O32—Ni4	138.3 (3)	C213—C212—C211	121.7 (5)
Ni3—O32—Ni4	96.56 (12)	C213—C212—H212	119.2
C39—O32—Ni1	114.7 (3)	C211—C212—H212	119.2
Ni3—O32—Ni1	100.82 (12)	C212—C213—C28	120.6 (6)
Ni4—O32—Ni1	92.08 (13)	C212—C213—H213	119.7
C315—O33—Ni3	128.3 (3)	C28—C213—H213	119.7
C315—O33—H33O	110 (5)	C211—C214—H21A	109.5
Ni3—O33—H33O	110 (5)	C211—C214—H21B	109.5
C41—O41—Ni4	124.6 (3)	H21A—C214—H21B	109.5
C49—O42—Ni4	108.8 (3)	C211—C214—H21C	109.5
C49—O42—Ni1	139.4 (3)	H21A—C214—H21C	109.5
Ni4—O42—Ni1	96.81 (14)	H21B—C214—H21C	109.5
C49—O42—Ni2	112.7 (3)	O23—C215—H21D	109.5
Ni4—O42—Ni2	101.23 (13)	O23—C215—H21E	109.5
Ni1—O42—Ni2	91.58 (12)	H21D—C215—H21E	109.5
C415—O43—Ni4	128.5 (3)	O23—C215—H21F	109.5
C415—O43—H43O	110 (5)	H21D—C215—H21F	109.5
Ni4—O43—H43O	113 (4)	H21E—C215—H21F	109.5
C19—O12—Ni2	135.6 (3)	C311—C310—C39	121.4 (5)
C19—O12—Ni1	107.6 (3)	C311—C310—H310	119.3
Ni2—O12—Ni1	97.62 (13)	C39—C310—H310	119.3
C19—O12—Ni3	116.3 (3)	C312—C311—C310	118.7 (5)
Ni2—O12—Ni3	93.45 (12)	C312—C311—C314	121.1 (5)
Ni1—O12—Ni3	100.42 (12)	C310—C311—C314	120.2 (5)
O11—C11—C16	118.7 (5)	C311—C312—C313	121.1 (5)
O11—C11—C12	124.5 (4)	C311—C312—H312	119.5
C16—C11—C12	116.8 (5)	C313—C312—H312	119.5
C13—C12—C11	118.8 (5)	C312—C313—C38	120.4 (5)
C13—C12—C17	116.1 (5)	C312—C313—H313	119.8
C11—C12—C17	125.1 (5)	C38—C313—H313	119.8
C14—C13—C12	122.8 (5)	C311—C314—H31A	109.5
C14—C13—H13	118.6	C311—C314—H31B	109.5
C12—C13—H13	118.6	H31A—C314—H31B	109.5
C13—C14—C15	118.7 (5)	C311—C314—H31C	109.5
C13—C14—H14	120.6	H31A—C314—H31C	109.5
C15—C14—H14	120.6	H31B—C314—H31C	109.5
C16—C15—C14	120.2 (5)	O33—C315—H31D	109.5
C16—C15—H15	119.9	O33—C315—H31E	109.5
C14—C15—H15	119.9	H31D—C315—H31E	109.5
C15—C16—C11	122.7 (5)	O33—C315—H31F	109.5
C15—C16—H16	118.6	H31D—C315—H31F	109.5
C11—C16—H16	118.6	H31E—C315—H31F	109.5
N11—C17—C12	125.6 (5)	C49—C410—C411	121.4 (5)
N11—C17—H17	117.2	C49—C410—H410	119.3
C12—C17—H17	117.2	C411—C410—H410	119.3
C113—C18—C19	120.1 (5)	C412—C411—C410	118.2 (5)
C113—C18—N11	125.1 (4)	C412—C411—C414	122.1 (5)
C19—C18—N11	114.7 (4)	C410—C411—C414	119.7 (5)
O12—C19—C110	123.6 (4)	C413—C412—C411	121.7 (5)
O12—C19—C18	118.1 (4)	C413—C412—H412	119.1
C110—C19—C18	118.3 (5)	C411—C412—H412	119.1
O21—C21—C26	117.8 (5)	C412—C413—C48	120.3 (5)
O21—C21—C22	125.3 (5)	C412—C413—H413	119.8
C26—C21—C22	116.9 (5)	C48—C413—H413	119.8
C23—C22—C21	119.3 (6)	C411—C414—H41A	109.5
C23—C22—C27	116.0 (5)	C411—C414—H41B	109.5
C21—C22—C27	124.6 (5)	H41A—C414—H41B	109.5
C24—C23—C22	122.0 (6)	C411—C414—H41C	109.5
C24—C23—H23	119.0	H41A—C414—H41C	109.5
C22—C23—H23	119.0	H41B—C414—H41C	109.5
C23—C24—C25	119.1 (6)	O43—C415—H41D	109.5
C23—C24—H24	120.4	O43—C415—H41E	109.5
C25—C24—H24	120.4	H41D—C415—H41E	109.5
C24—C25—C26	120.5 (6)	O43—C415—H41F	109.5
C24—C25—H25	119.8	H41D—C415—H41F	109.5
C26—C25—H25	119.8	H41E—C415—H41F	109.5
C25—C26—C21	122.2 (6)	C1—O1—H11O	109.0 (9)
C25—C26—H26	118.9	O1—C1—H1A	109.5
C21—C26—H26	118.9	O1—C1—H1B	109.5
N21—C27—C22	125.0 (5)	H1A—C1—H1B	109.5
N21—C27—H27	117.5	O1—C1—H1C	109.5
C22—C27—H27	117.5	H1A—C1—H1C	109.5
C213—C28—C29	118.8 (5)	H1B—C1—H1C	109.5
C213—C28—N21	125.3 (5)

Ni1—O11—C11—C16	177.5 (3)	Ni3—N31—C38—C313	−165.5 (4)
Ni1—O11—C11—C12	−2.8 (7)	C37—N31—C38—C39	−171.0 (5)
O11—C11—C12—C13	179.1 (4)	Ni3—N31—C38—C39	10.9 (5)
C16—C11—C12—C13	−1.2 (7)	Ni3—O32—C39—C38	−21.8 (5)
O11—C11—C12—C17	−3.9 (8)	Ni4—O32—C39—C38	−145.0 (4)
C16—C11—C12—C17	175.8 (5)	Ni1—O32—C39—C38	89.7 (4)
C11—C12—C13—C14	0.6 (8)	Ni3—O32—C39—C310	160.1 (4)
C17—C12—C13—C14	−176.7 (5)	Ni4—O32—C39—C310	37.0 (7)
C12—C13—C14—C15	0.5 (9)	Ni1—O32—C39—C310	−88.3 (4)
C13—C14—C15—C16	−1.1 (9)	C313—C38—C39—O32	−175.2 (4)
C14—C15—C16—C11	0.5 (9)	N31—C38—C39—O32	8.1 (6)
O11—C11—C16—C15	−179.6 (5)	C313—C38—C39—C310	2.9 (7)
C12—C11—C16—C15	0.7 (8)	N31—C38—C39—C310	−173.7 (4)
C18—N11—C17—C12	−173.6 (5)	Ni4—O41—C41—C46	−169.9 (3)
Ni1—N11—C17—C12	7.3 (7)	Ni4—O41—C41—C42	9.6 (7)
C13—C12—C17—N11	178.5 (5)	O41—C41—C42—C43	−175.7 (4)
C11—C12—C17—N11	1.4 (8)	C46—C41—C42—C43	3.8 (7)
C17—N11—C18—C113	20.7 (8)	O41—C41—C42—C47	2.8 (8)
Ni1—N11—C18—C113	−160.2 (4)	C46—C41—C42—C47	−177.6 (4)
C17—N11—C18—C19	−165.0 (5)	C47—C42—C43—C44	178.8 (5)
Ni1—N11—C18—C19	14.1 (5)	C41—C42—C43—C44	−2.5 (8)
Ni2—O12—C19—C110	36.8 (7)	C42—C43—C44—C45	0.1 (8)
Ni1—O12—C19—C110	158.3 (4)	C43—C44—C45—C46	0.9 (8)
Ni3—O12—C19—C110	−90.1 (5)	C44—C45—C46—C41	0.6 (8)
Ni2—O12—C19—C18	−144.0 (4)	O41—C41—C46—C45	176.6 (4)
Ni1—O12—C19—C18	−22.5 (5)	C42—C41—C46—C45	−3.0 (7)
Ni3—O12—C19—C18	89.1 (5)	C48—N41—C47—C42	178.2 (4)
C113—C18—C19—O12	−178.7 (5)	Ni4—N41—C47—C42	−7.0 (7)
N11—C18—C19—O12	6.7 (7)	C43—C42—C47—N41	174.3 (4)
C113—C18—C19—C110	0.5 (7)	C41—C42—C47—N41	−4.3 (8)
N11—C18—C19—C110	−174.1 (4)	C47—N41—C48—C413	−17.4 (7)
Ni2—O21—C21—C26	−172.2 (3)	Ni4—N41—C48—C413	167.2 (4)
Ni2—O21—C21—C22	9.3 (7)	C47—N41—C48—C49	163.4 (4)
O21—C21—C22—C23	179.6 (5)	Ni4—N41—C48—C49	−12.0 (5)
C26—C21—C22—C23	1.2 (7)	Ni4—O42—C49—C410	−163.9 (4)
O21—C21—C22—C27	−0.9 (8)	Ni1—O42—C49—C410	−37.8 (7)
C26—C21—C22—C27	−179.4 (5)	Ni2—O42—C49—C410	84.6 (5)
C21—C22—C23—C24	−0.2 (8)	Ni4—O42—C49—C48	19.9 (5)
C27—C22—C23—C24	−179.6 (5)	Ni1—O42—C49—C48	146.0 (4)
C22—C23—C24—C25	−0.7 (8)	Ni2—O42—C49—C48	−91.6 (4)
C23—C24—C25—C26	0.6 (8)	C413—C48—C49—O42	174.8 (4)
C24—C25—C26—C21	0.5 (8)	N41—C48—C49—O42	−6.0 (6)
O21—C21—C26—C25	−179.9 (5)	C413—C48—C49—C410	−1.5 (7)
C22—C21—C26—C25	−1.3 (8)	N41—C48—C49—C410	177.7 (4)
C28—N21—C27—C22	175.1 (4)	O12—C19—C110—C111	177.8 (5)
Ni2—N21—C27—C22	−0.1 (7)	C18—C19—C110—C111	−1.4 (8)
C23—C22—C27—N21	175.2 (5)	C19—C110—C111—C112	0.7 (8)
C21—C22—C27—N21	−4.2 (8)	C19—C110—C111—C114	−178.0 (5)
C27—N21—C28—C213	−12.7 (8)	C110—C111—C112—C113	1.0 (8)
Ni2—N21—C28—C213	163.1 (4)	C114—C111—C112—C113	179.7 (5)
C27—N21—C28—C29	172.4 (4)	C111—C112—C113—C18	−1.8 (8)
Ni2—N21—C28—C29	−11.8 (5)	C19—C18—C113—C112	1.1 (8)
Ni2—O22—C29—C210	−158.7 (4)	N11—C18—C113—C112	175.1 (5)
Ni3—O22—C29—C210	−36.8 (7)	O22—C29—C210—C211	−176.8 (4)
Ni4—O22—C29—C210	88.0 (5)	C28—C29—C210—C211	1.6 (7)
Ni2—O22—C29—C28	22.9 (5)	C29—C210—C211—C212	0.3 (7)
Ni3—O22—C29—C28	144.8 (4)	C29—C210—C211—C214	−179.6 (5)
Ni4—O22—C29—C28	−90.5 (4)	C210—C211—C212—C213	−1.8 (8)
C213—C28—C29—O22	176.5 (4)	C214—C211—C212—C213	178.1 (5)
N21—C28—C29—O22	−8.3 (6)	C211—C212—C213—C28	1.4 (8)
C213—C28—C29—C210	−2.1 (7)	C29—C28—C213—C212	0.6 (7)
N21—C28—C29—C210	173.2 (4)	N21—C28—C213—C212	−174.1 (5)
Ni3—O31—C31—C36	169.8 (4)	O32—C39—C310—C311	175.4 (4)
Ni3—O31—C31—C32	−10.2 (7)	C38—C39—C310—C311	−2.7 (7)
O31—C31—C32—C33	180.0 (5)	C39—C310—C311—C312	0.6 (7)
C36—C31—C32—C33	0.0 (7)	C39—C310—C311—C314	−177.8 (4)
O31—C31—C32—C37	−0.1 (8)	C310—C311—C312—C313	1.2 (8)
C36—C31—C32—C37	179.8 (5)	C314—C311—C312—C313	179.6 (5)
C31—C32—C33—C34	0.3 (8)	C311—C312—C313—C38	−0.9 (8)
C37—C32—C33—C34	−179.6 (5)	C39—C38—C313—C312	−1.2 (7)
C32—C33—C34—C35	−0.1 (8)	N31—C38—C313—C312	175.1 (4)
C33—C34—C35—C36	−0.2 (8)	O42—C49—C410—C411	−173.0 (4)
C34—C35—C36—C31	0.4 (9)	C48—C49—C410—C411	3.1 (7)
O31—C31—C36—C35	179.7 (5)	C49—C410—C411—C412	−2.1 (7)
C32—C31—C36—C35	−0.3 (8)	C49—C410—C411—C414	176.6 (4)
C38—N31—C37—C32	−175.3 (4)	C410—C411—C412—C413	−0.6 (7)
Ni3—N31—C37—C32	2.4 (7)	C414—C411—C412—C413	−179.2 (5)
C33—C32—C37—N31	−175.6 (5)	C411—C412—C413—C48	2.1 (8)
C31—C32—C37—N31	4.5 (8)	N41—C48—C413—C412	179.8 (4)
C37—N31—C38—C313	12.5 (8)	C49—C48—C413—C412	−1.0 (7)

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
O13—H13O···O21	0.84 (2)	1.89 (3)	2.688 (5)	161 (6)
O23—H23O···O31	0.84 (2)	1.87 (2)	2.709 (5)	177 (7)
O33—H33O···O41	0.82 (2)	1.88 (3)	2.645 (5)	155 (7)
O43—H43O···O11	0.81 (2)	1.93 (3)	2.686 (5)	155 (7)
C46—H46···O11ⁱ	0.93	2.55	3.307 (6)	139
C110—H110···O23	0.93	2.42	3.177 (6)	138
C210—H210···O33	0.93	2.44	3.175 (6)	136
C310—H310···O43	0.93	2.48	3.218 (6)	137
C410—H410···O13	0.93	2.45	3.189 (6)	136
O1—H11O···O31	0.83	2.2100	3.034 (8)	177

Symmetry code: (i) x, −y+1/2, z−1/2.

Acknowledgements

This study was supported by Grants 119–1191342-1082 and 098–1191344-2943 from the Ministry of Science, Education and Sports of the Republic of Croatia.

References

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