Poly[[tetra­aqua­tetra­kis­[μ3-5-(pyridine-4-carboxamido)­isophthalato]nickel(II)diterbium(III)] tetra­hydrate]

Deng, Y.-F.; Chen, M.-S.; Zhang, C.-H.; Nie, X.

doi:10.1107/S1600536813014876

metal-organic compounds

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ISSN: 2056-9890

Volume 69| Part 7| July 2013| Pages m358-m359

https://doi.org/10.1107/S1600536813014876

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Poly[[tetraaquatetrakis[μ₃-5-(pyridine-4-carboxamido)isophthalato]nickel(II)diterbium(III)] tetrahydrate]

Yi-Fang Deng,^a Man-Sheng Chen,^a Chun-Hua Zhang ^a ^* and Xue Nie ^a

^aKey Laboratory of Functional Organometallic Materials, Hengyang Normal University, Department of Chemistry and Materials Science, Hengyang, Hunan 421008, People's Republic of China
^*Correspondence e-mail: hynuzch@163.com

(Received 21 May 2013; accepted 30 May 2013; online 8 June 2013)

In the title compound, {[NiTb₂(C₁₄H₈N₂O₅)₄(H₂O)₄]·4H₂O}_n, the Tb^III ion is coordinated by one water molecule and seven O atoms from four 5-(pyridine-4-carboxamido)isophthalate (L) ligands in a distorted square-antiprismatic arrangement, while the Ni^II ion, lying on an inversion center, is six-coordinated in an octahedral geometry by two pyridine N atoms, two carboxylate O atoms and two water molecules. One L ligand bridges two Tb^III ions and one Ni^II ion through two carboxylate groups and one pyridine N atom. The other L ligand bridges two Tb^III ions and one Ni^II ion through two carboxylate groups, while the uncoordinating pyridine N atom is hydrogen bonded to an adjacent coordinating water molecule. Extensive O—H⋯O, N—H⋯O and O—H⋯N hydrogen bonds play an important role in stabilizing the crystal structure.

Related literature

For background to hetero-metallic complexes, see: Gu & Xue (2006 ); Liang et al. (2000 ); Prasad et al. (2007 ); Zhao et al. (2003 , 2004 ). For related structures, see: Chen et al. (2011 ); Deng et al. (2011 ).

Experimental

Crystal data

[NiTb₂(C₁₄H₈N₂O₅)₄(H₂O)₄]·4H₂O
M_r = 1657.57
Triclinic, $[P \overline 1]$
a = 10.2347 (12) Å
b = 10.8608 (13) Å
c = 13.7452 (17) Å
α = 79.053 (2)°
β = 78.745 (1)°
γ = 86.326 (2)°
V = 1470.7 (3) Å³
Z = 1
Mo Kα radiation
μ = 2.80 mm⁻¹
T = 293 K
0.22 × 0.16 × 0.08 mm

Data collection

Bruker APEX CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2001 ) T_min = 0.578, T_max = 0.807
7345 measured reflections
5088 independent reflections
4486 reflections with I > 2σ(I)
R_int = 0.045

Refinement

R[F² > 2σ(F²)] = 0.033
wR(F²) = 0.074
S = 1.03
5088 reflections
434 parameters
1 restraint
H atoms treated by a mixture of independent and constrained refinement
Δρ_max = 1.24 e Å⁻³
Δρ_min = −0.85 e Å⁻³

Table 1
Hydrogen-bond geometry (Å, °)

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O4Wⁱ	0.86	2.16	3.000 (6)	166
N3—H3⋯O4ⁱⁱ	0.86	2.17	2.958 (6)	153
O1W—H1WA⋯O6ⁱⁱⁱ	0.82	2.24	2.988 (4)	151
O1W—H1WB⋯O3W^iv	0.85	2.04	2.763 (6)	143
O2W—H2WA⋯O3W^v	0.85 (6)	2.47 (6)	3.117 (7)	134 (5)
O2W—H2WB⋯N2^vi	0.85	1.92	2.672 (6)	147
O3W—H3WC⋯O3^iv	0.85	1.92	2.736 (5)	159
O3W—H3WD⋯O8^vii	0.85	1.98	2.793 (5)	160
O4W—H4WA⋯O9^viii	0.85	2.25	3.088 (6)	170
O4W—H4WB⋯O9ⁱⁱ	0.85	2.19	3.034 (5)	172
Symmetry codes: (i) -x+1, -y+1, -z+2; (ii) -x+2, -y+1, -z+2; (iii) -x+2, -y+1, -z+1; (iv) -x+1, -y+1, -z+1; (v) -x+1, -y, -z+1; (vi) x, y, z-1; (vii) x-1, y, z; (viii) x-1, y+1, z.

Data collection: SMART (Bruker, 2007 ); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008 ); program(s) used to refine structure: SHELXTL; molecular graphics: XP in SHELXTL and DIAMOND (Brandenburg, 1999 ); software used to prepare material for publication: SHELXTL.

Supporting information

Crystal structure: contains datablocks global, I. DOI: https://doi.org/10.1107/S1600536813014876/hy2627sup1.cif

Structure factors: contains datablock I. DOI: https://doi.org/10.1107/S1600536813014876/hy2627Isup2.hkl

checkCIF report

Comment top

The synthesis and investigation of d-f heterometallic complexes are challenge for chemists and have attracted increasing attention in last few years since the competitive reaction containing d-f metal ions in conjunction with ligands often result in the formation of a mixture of homometallic assemblies rather than heterometallic analogous (Gu & Xue, 2006; Liang et al., 2000; Prasad et al., 2007; Zhao et al., 2003, 2004;). We have recently prepared the title compound, a new transition metal(II)–lanthanide(III) coordination polymer, under hydrothermal conditions.

In the title compound, the Tb^III ion is eight-coordinated by seven O atoms from four 5-(pyridine-4-carboxamido)isophthalate (L) ligands and one water molecule, forming a distorted square-antiprismatic geometry (Fig. 1). It is interesting that the carboxylate groups of two unique L ligands exhibit different coordination modes: one coordinates to two Tb^III ions and one Ni^II ion using its two carboxylate groups with µ₁-η¹:η¹-chelate and µ₂-η¹:η¹-bis-monodentate coordination modes while the pyridyl group is free of coordination, the other one coordinates to two Tb^III ions through the carboxylate groups with µ₁-η¹:η¹-chelate coordination mode and to one Ni^II ion through the pyridyl group. Based on the coordination modes of the carboxylate and pyridyl groups, a complicated three-dimensional network is formed (Fig. 2), which is similar to the complexes {[LnCo_0.5(INAIP)₂(H₂O)₂].2H₂O}_n (Chen et al., 2011; Deng et al., 2011).

Related literature top

For background to hetero-metallic complexes, see: Gu & Xue (2006); Liang et al. (2000); Prasad et al. (2007); Zhao et al. (2003, 2004). For related structures, see: Chen et al. (2011); Deng et al. (2011).

Experimental top

A mixture of Tb(NO₃)₃.6H₂O (22.1 mg. 0.05 mmol), H₂L (28.7 mg, 0.1 mmol), NiSO₄.6H₂O (13.1 mg, 0.05 mmol), NaOH (6.0 mg, 0.15 mmol), EtOH (4 ml) and H₂O (6 ml) was heated in a 16 ml capacity Teflon-lined reaction vessel at 453 K for 3 days. The reaction mixture was cooled to room temperature over a period of 48 h. The product was collected by filtration, washed with H₂O and air-dried.

Structure description top

For background to hetero-metallic complexes, see: Gu & Xue (2006); Liang et al. (2000); Prasad et al. (2007); Zhao et al. (2003, 2004). For related structures, see: Chen et al. (2011); Deng et al. (2011).

Computing details top

Data collection: SMART (Bruker, 2007); cell refinement: SAINT (Bruker, 2007); data reduction: SAINT (Bruker, 2007); program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).

Figures top

	Fig. 1. The asymmetric unit of the title compound. Displacement ellipsoids are drawn at the 30% probability level. [Symmetry codes: (A) x, y, -1+z; (B) 2-x, 1-y, 2-z; (C) 2-x, 1-y, 1-z; (D) x, -1+y, z; (E) -1+x, y, z.]
	Fig. 2. A view showing the three-dimensional network of the title compound.

Poly[[tetraaquatetrakis[µ₃-5-(pyridine-4-carboxamido)isophthalato]nickel(II)diterbium(III)] tetrahydrate] top

Crystal data top

[NiTb₂(C₁₄H₈N₂O₅)₄(H₂O)₄]·4H₂O	Z = 1
M_r = 1657.57	F(000) = 822
Triclinic, P1	D_x = 1.872 Mg m⁻³
Hall symbol: -P 1	Mo Kα radiation, λ = 0.71073 Å
a = 10.2347 (12) Å	Cell parameters from 3746 reflections
b = 10.8608 (13) Å	θ = 2.1–24.8°
c = 13.7452 (17) Å	µ = 2.80 mm⁻¹
α = 79.053 (2)°	T = 293 K
β = 78.745 (1)°	Block, green
γ = 86.326 (2)°	0.22 × 0.16 × 0.08 mm
V = 1470.7 (3) Å³

Data collection top

Bruker APEX CCD diffractometer	5088 independent reflections
Radiation source: fine-focus sealed tube	4486 reflections with I > 2σ(I)
Graphite monochromator	R_int = 0.045
φ and ω scans	θ_max = 25.0°, θ_min = 2.0°
Absorption correction: multi-scan (SADABS; Bruker, 2001)	h = −12→10
T_min = 0.578, T_max = 0.807	k = −12→12
7345 measured reflections	l = −15→16

Refinement top

Refinement on F²	Primary atom site location: structure-invariant direct methods
Least-squares matrix: full	Secondary atom site location: difference Fourier map
R[F² > 2σ(F²)] = 0.033	Hydrogen site location: inferred from neighbouring sites
wR(F²) = 0.074	H atoms treated by a mixture of independent and constrained refinement
S = 1.03	w = 1/[σ²(F_o²) + (0.0233P)²] where P = (F_o² + 2F_c²)/3
5088 reflections	(Δ/σ)_max = 0.013
434 parameters	Δρ_max = 1.24 e Å⁻³
1 restraint	Δρ_min = −0.85 e Å⁻³

Crystal data top

[NiTb₂(C₁₄H₈N₂O₅)₄(H₂O)₄]·4H₂O	γ = 86.326 (2)°
M_r = 1657.57	V = 1470.7 (3) Å³
Triclinic, P1	Z = 1
a = 10.2347 (12) Å	Mo Kα radiation
b = 10.8608 (13) Å	µ = 2.80 mm⁻¹
c = 13.7452 (17) Å	T = 293 K
α = 79.053 (2)°	0.22 × 0.16 × 0.08 mm
β = 78.745 (1)°

Data collection top

Bruker APEX CCD diffractometer	5088 independent reflections
Absorption correction: multi-scan (SADABS; Bruker, 2001)	4486 reflections with I > 2σ(I)
T_min = 0.578, T_max = 0.807	R_int = 0.045
7345 measured reflections

Refinement top

R[F² > 2σ(F²)] = 0.033	1 restraint
wR(F²) = 0.074	H atoms treated by a mixture of independent and constrained refinement
S = 1.03	Δρ_max = 1.24 e Å⁻³
5088 reflections	Δρ_min = −0.85 e Å⁻³
434 parameters

Special details top

Geometry. All e.s.d.'s (except the e.s.d. in the dihedral angle between two l.s. planes) are estimated using the full covariance matrix. The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry. An approximate (isotropic) treatment of cell e.s.d.'s is used for estimating e.s.d.'s involving l.s. planes.

Refinement. Refinement of F² against ALL reflections. The weighted R-factor wR and goodness of fit S are based on F², conventional R-factors R are based on F, with F set to zero for negative F². The threshold expression of F² > σ(F²) is used only for calculating R-factors(gt) etc. and is not relevant to the choice of reflections for refinement. R-factors based on F² are statistically about twice as large as those based on F, and R- factors based on ALL data will be even larger.

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

	x	y	z	U_iso*/U_eq
Ni1	1.0000	0.5000	0.5000	0.0250 (2)
Tb1	0.68072 (2)	0.07753 (2)	0.702898 (17)	0.01601 (8)
C1	0.7020 (4)	0.4733 (4)	0.7262 (3)	0.0183 (11)
C2	0.6789 (4)	0.4175 (4)	0.8277 (3)	0.0183 (11)
H2	0.6736	0.3308	0.8459	0.022*
C3	0.6638 (4)	0.4905 (4)	0.9018 (3)	0.0175 (11)
C4	0.6652 (4)	0.6204 (4)	0.8744 (3)	0.0178 (10)
H4	0.6536	0.6703	0.9236	0.021*
C5	0.6839 (4)	0.6748 (4)	0.7733 (3)	0.0158 (10)
C6	0.7036 (4)	0.6024 (4)	0.6993 (3)	0.0193 (11)
H6	0.7179	0.6402	0.6317	0.023*
C7	0.6867 (4)	0.8146 (4)	0.7468 (3)	0.0175 (10)
C8	0.7334 (5)	0.3941 (4)	0.6453 (4)	0.0204 (11)
C9	0.6652 (5)	0.4829 (5)	1.0811 (4)	0.0273 (12)
C10	0.6518 (5)	0.4003 (5)	1.1831 (4)	0.0236 (12)
C11	0.6510 (5)	0.2706 (5)	1.2016 (4)	0.0289 (13)
H11	0.6537	0.2274	1.1489	0.035*
C12	0.6461 (5)	0.2065 (5)	1.2977 (4)	0.0335 (14)
H12	0.6461	0.1194	1.3084	0.040*
C13	0.6395 (6)	0.3855 (6)	1.3606 (4)	0.0377 (14)
H13	0.6341	0.4257	1.4154	0.045*
C14	0.6452 (5)	0.4584 (5)	1.2657 (4)	0.0338 (13)
H14	0.6446	0.5454	1.2574	0.041*
C15	1.0258 (4)	0.1208 (4)	0.8319 (3)	0.0182 (11)
C16	1.1580 (5)	0.1051 (4)	0.7839 (3)	0.0202 (11)
H16	1.1759	0.0885	0.7186	0.024*
C17	1.2619 (4)	0.1142 (4)	0.8325 (3)	0.0188 (11)
C18	1.2340 (5)	0.1428 (4)	0.9301 (3)	0.0199 (11)
H18	1.3034	0.1484	0.9636	0.024*
C19	1.1034 (5)	0.1627 (4)	0.9764 (3)	0.0202 (11)
C20	0.9994 (5)	0.1486 (4)	0.9280 (3)	0.0202 (11)
H20	0.9116	0.1578	0.9605	0.024*
C21	0.9089 (5)	0.1091 (4)	0.7832 (4)	0.0190 (11)
C22	1.4064 (5)	0.0981 (4)	0.7846 (4)	0.0209 (11)
C23	0.9939 (5)	0.2964 (5)	1.0918 (4)	0.0243 (12)
C24	0.9908 (5)	0.3390 (5)	1.1902 (4)	0.0239 (12)
C25	0.9825 (5)	0.2574 (5)	1.2813 (4)	0.0249 (12)
H25	0.9818	0.1711	1.2847	0.030*
C26	0.9751 (5)	0.3078 (5)	1.3671 (4)	0.0259 (12)
H26	0.9668	0.2531	1.4287	0.031*
C27	0.9848 (5)	0.5064 (5)	1.2781 (4)	0.0260 (12)
H27	0.9863	0.5924	1.2762	0.031*
C28	0.9886 (5)	0.4653 (5)	1.1899 (4)	0.0254 (12)
H28	0.9897	0.5224	1.1301	0.031*
N1	0.6471 (4)	0.4307 (4)	1.0036 (3)	0.0198 (9)
H1	0.6233	0.3539	1.0175	0.024*
N2	0.6415 (4)	0.2613 (4)	1.3772 (3)	0.0351 (12)
N3	1.0796 (4)	0.2002 (4)	1.0719 (3)	0.0215 (9)
H3	1.1205	0.1609	1.1182	0.026*
N4	0.9792 (4)	0.4297 (4)	1.3670 (3)	0.0230 (10)
O1	0.8077 (3)	0.4367 (3)	0.5645 (2)	0.0279 (8)
O2	0.6811 (3)	0.2878 (3)	0.6642 (2)	0.0299 (9)
O3	0.6713 (4)	0.8705 (3)	0.6617 (2)	0.0331 (9)
O4	0.7068 (4)	0.8772 (3)	0.8101 (2)	0.0339 (9)
O5	0.6912 (5)	0.5911 (4)	1.0737 (3)	0.0543 (13)
O6	0.9267 (3)	0.0947 (3)	0.6916 (2)	0.0292 (9)
O7	0.7926 (3)	0.1150 (3)	0.8333 (2)	0.0223 (8)
O8	1.4397 (3)	0.0991 (3)	0.6916 (2)	0.0279 (8)
O9	1.4954 (3)	0.0850 (4)	0.8377 (2)	0.0389 (10)
O10	0.9241 (4)	0.3510 (4)	1.0333 (3)	0.0367 (10)
O1W	0.9258 (3)	0.6831 (3)	0.4332 (2)	0.0304 (9)
H1WB	0.8653	0.7199	0.4703	0.036*
H1WA	0.9887	0.7246	0.3992	0.036*
O2W	0.7196 (4)	0.0949 (4)	0.5260 (3)	0.0384 (10)
H2WA	0.762 (6)	0.038 (5)	0.497 (5)	0.08 (3)*
H2WB	0.6846	0.1625	0.4985	0.046*
O3W	0.2999 (4)	0.1656 (5)	0.5331 (3)	0.0711 (15)
H3WC	0.3276	0.1462	0.4754	0.085*
H3WD	0.3569	0.1383	0.5705	0.085*
O4W	0.4141 (5)	0.8386 (4)	0.9854 (3)	0.0655 (15)
H4WA	0.4330	0.9020	0.9390	0.079*
H4WB	0.4387	0.8527	1.0378	0.079*

Atomic displacement parameters (Å²) top

	U¹¹	U²²	U³³	U¹²	U¹³	U²³
Ni1	0.0299 (6)	0.0268 (5)	0.0192 (5)	−0.0041 (4)	−0.0022 (4)	−0.0074 (4)
Tb1	0.01649 (14)	0.01550 (13)	0.01686 (13)	−0.00072 (9)	−0.00436 (9)	−0.00362 (9)
C1	0.018 (3)	0.017 (3)	0.019 (3)	−0.001 (2)	−0.004 (2)	−0.002 (2)
C2	0.019 (3)	0.015 (3)	0.017 (3)	−0.002 (2)	0.001 (2)	0.001 (2)
C3	0.011 (2)	0.023 (3)	0.016 (3)	0.001 (2)	−0.001 (2)	0.002 (2)
C4	0.015 (3)	0.020 (3)	0.019 (3)	0.001 (2)	−0.006 (2)	−0.004 (2)
C5	0.014 (2)	0.014 (2)	0.019 (3)	−0.0025 (19)	−0.003 (2)	−0.001 (2)
C6	0.019 (3)	0.020 (3)	0.017 (3)	−0.002 (2)	−0.001 (2)	0.000 (2)
C7	0.016 (3)	0.017 (3)	0.021 (3)	0.000 (2)	−0.005 (2)	−0.005 (2)
C8	0.021 (3)	0.018 (3)	0.024 (3)	0.004 (2)	−0.010 (2)	−0.003 (2)
C9	0.026 (3)	0.031 (3)	0.023 (3)	−0.002 (2)	−0.002 (2)	−0.001 (2)
C10	0.016 (3)	0.030 (3)	0.023 (3)	−0.002 (2)	−0.004 (2)	−0.001 (2)
C11	0.034 (3)	0.028 (3)	0.025 (3)	−0.006 (2)	−0.009 (3)	−0.002 (2)
C12	0.038 (3)	0.030 (3)	0.032 (3)	−0.011 (3)	−0.011 (3)	0.005 (3)
C13	0.046 (4)	0.052 (4)	0.018 (3)	0.005 (3)	−0.008 (3)	−0.012 (3)
C14	0.040 (4)	0.034 (3)	0.027 (3)	−0.002 (3)	−0.007 (3)	−0.004 (3)
C15	0.017 (3)	0.019 (3)	0.020 (3)	0.001 (2)	−0.006 (2)	−0.004 (2)
C16	0.022 (3)	0.024 (3)	0.015 (2)	0.001 (2)	−0.003 (2)	−0.006 (2)
C17	0.013 (3)	0.024 (3)	0.020 (3)	−0.001 (2)	−0.005 (2)	−0.002 (2)
C18	0.017 (3)	0.022 (3)	0.024 (3)	−0.003 (2)	−0.011 (2)	−0.007 (2)
C19	0.020 (3)	0.024 (3)	0.020 (3)	−0.001 (2)	−0.003 (2)	−0.010 (2)
C20	0.016 (3)	0.024 (3)	0.022 (3)	0.001 (2)	−0.002 (2)	−0.010 (2)
C21	0.022 (3)	0.016 (3)	0.022 (3)	−0.001 (2)	−0.008 (2)	−0.006 (2)
C22	0.022 (3)	0.017 (3)	0.024 (3)	0.000 (2)	−0.004 (2)	−0.003 (2)
C23	0.020 (3)	0.032 (3)	0.023 (3)	−0.005 (2)	−0.002 (2)	−0.012 (2)
C24	0.014 (3)	0.039 (3)	0.020 (3)	0.000 (2)	−0.004 (2)	−0.010 (2)
C25	0.024 (3)	0.032 (3)	0.022 (3)	−0.002 (2)	−0.005 (2)	−0.011 (2)
C26	0.028 (3)	0.029 (3)	0.019 (3)	−0.009 (2)	−0.003 (2)	−0.001 (2)
C27	0.027 (3)	0.025 (3)	0.026 (3)	−0.002 (2)	−0.002 (2)	−0.006 (2)
C28	0.029 (3)	0.032 (3)	0.016 (3)	0.001 (2)	−0.005 (2)	−0.005 (2)
N1	0.024 (2)	0.016 (2)	0.017 (2)	−0.0011 (17)	−0.0026 (18)	0.0018 (17)
N2	0.041 (3)	0.040 (3)	0.023 (3)	−0.010 (2)	−0.009 (2)	0.004 (2)
N3	0.020 (2)	0.030 (2)	0.016 (2)	0.0027 (18)	−0.0079 (18)	−0.0040 (18)
N4	0.020 (2)	0.034 (3)	0.017 (2)	−0.0042 (19)	−0.0025 (18)	−0.0100 (19)
O1	0.028 (2)	0.037 (2)	0.0188 (19)	−0.0097 (17)	0.0015 (16)	−0.0089 (16)
O2	0.046 (2)	0.0134 (19)	0.030 (2)	−0.0048 (16)	−0.0039 (18)	−0.0058 (15)
O3	0.068 (3)	0.0138 (19)	0.0196 (19)	−0.0010 (17)	−0.0143 (19)	−0.0012 (15)
O4	0.067 (3)	0.0150 (19)	0.028 (2)	0.0044 (17)	−0.027 (2)	−0.0068 (15)
O5	0.111 (4)	0.026 (2)	0.031 (2)	−0.024 (2)	−0.023 (2)	−0.0010 (18)
O6	0.019 (2)	0.050 (2)	0.023 (2)	−0.0029 (17)	−0.0051 (16)	−0.0159 (17)
O7	0.0126 (18)	0.035 (2)	0.0232 (19)	−0.0012 (15)	−0.0038 (15)	−0.0134 (15)
O8	0.0151 (19)	0.050 (2)	0.022 (2)	0.0009 (16)	−0.0038 (15)	−0.0162 (17)
O9	0.0142 (19)	0.082 (3)	0.021 (2)	0.0050 (19)	−0.0062 (16)	−0.0094 (19)
O10	0.038 (2)	0.050 (3)	0.029 (2)	0.0195 (19)	−0.0152 (19)	−0.0220 (18)
O1W	0.035 (2)	0.031 (2)	0.0230 (19)	0.0021 (17)	0.0013 (17)	−0.0064 (16)
O2W	0.064 (3)	0.030 (2)	0.018 (2)	0.004 (2)	−0.009 (2)	0.0003 (17)
O3W	0.059 (3)	0.124 (5)	0.027 (2)	0.027 (3)	−0.013 (2)	−0.012 (3)
O4W	0.137 (5)	0.035 (3)	0.027 (2)	−0.031 (3)	−0.014 (3)	−0.0027 (19)

Geometric parameters (Å, º) top

Ni1—O1	2.096 (3)	C15—C20	1.383 (6)
Ni1—N4ⁱ	2.161 (4)	C15—C16	1.399 (6)
Ni1—O1W	2.181 (3)	C15—C21	1.504 (6)
Tb1—O2	2.245 (3)	C16—C17	1.379 (6)
Tb1—O2W	2.359 (4)	C16—H16	0.9300
Tb1—O9ⁱⁱ	2.388 (3)	C17—C18	1.405 (6)
Tb1—O7	2.413 (3)	C17—C22	1.511 (6)
Tb1—O4ⁱⁱⁱ	2.416 (3)	C18—C19	1.386 (6)
Tb1—O3ⁱⁱⁱ	2.433 (3)	C18—H18	0.9300
Tb1—O8ⁱⁱ	2.495 (3)	C19—C20	1.392 (6)
Tb1—O6	2.509 (3)	C19—N3	1.418 (6)
C1—C6	1.381 (6)	C20—H20	0.9300
C1—C2	1.392 (6)	C21—O7	1.257 (5)
C1—C8	1.506 (6)	C21—O6	1.275 (5)
C2—C3	1.385 (6)	C22—O8	1.255 (5)
C2—H2	0.9300	C22—O9	1.259 (6)
C3—C4	1.389 (6)	C23—O10	1.225 (6)
C3—N1	1.409 (6)	C23—N3	1.354 (6)
C4—C5	1.384 (6)	C23—C24	1.505 (7)
C4—H4	0.9300	C24—C28	1.370 (7)
C5—C6	1.377 (6)	C24—C25	1.381 (7)
C5—C7	1.493 (6)	C25—C26	1.379 (6)
C6—H6	0.9300	C25—H25	0.9300
C7—O3	1.246 (5)	C26—N4	1.327 (6)
C7—O4	1.255 (5)	C26—H26	0.9300
C8—O1	1.243 (5)	C27—N4	1.336 (6)
C8—O2	1.264 (5)	C27—C28	1.361 (7)
C9—O5	1.203 (6)	C27—H27	0.9300
C9—N1	1.345 (6)	C28—H28	0.9300
C9—C10	1.500 (7)	N1—H1	0.8600
C10—C11	1.384 (7)	N3—H3	0.8600
C10—C14	1.389 (7)	O1W—H1WB	0.8524
C11—C12	1.365 (7)	O1W—H1WA	0.8227
C11—H11	0.9300	O2W—H2WA	0.849 (5)
C12—N2	1.331 (7)	O2W—H2WB	0.8506
C12—H12	0.9300	O3W—H3WC	0.8494
C13—N2	1.324 (7)	O3W—H3WD	0.8540
C13—C14	1.384 (7)	O4W—H4WA	0.8486
C13—H13	0.9300	O4W—H4WB	0.8510
C14—H14	0.9300

O1—Ni1—O1^iv	180.000 (1)	O5—C9—C10	118.2 (5)
O1—Ni1—N4ⁱ	87.40 (13)	N1—C9—C10	117.6 (5)
O1^iv—Ni1—N4ⁱ	92.60 (13)	C11—C10—C14	117.0 (5)
O1—Ni1—N4^v	92.60 (13)	C11—C10—C9	125.5 (5)
O1^iv—Ni1—N4^v	87.40 (13)	C14—C10—C9	117.4 (5)
N4ⁱ—Ni1—N4^v	180.000 (1)	C12—C11—C10	119.5 (5)
O1—Ni1—O1W	92.84 (13)	C12—C11—H11	120.3
O1^iv—Ni1—O1W	87.16 (13)	C10—C11—H11	120.3
N4ⁱ—Ni1—O1W	88.99 (14)	N2—C12—C11	123.9 (5)
N4^v—Ni1—O1W	91.01 (14)	N2—C12—H12	118.0
O1—Ni1—O1W^iv	87.16 (13)	C11—C12—H12	118.0
O1^iv—Ni1—O1W^iv	92.84 (13)	N2—C13—C14	123.1 (5)
N4ⁱ—Ni1—O1W^iv	91.01 (14)	N2—C13—H13	118.4
N4^v—Ni1—O1W^iv	88.99 (14)	C14—C13—H13	118.4
O1W—Ni1—O1W^iv	180.00 (17)	C13—C14—C10	119.4 (5)
O2—Tb1—O2W	82.73 (13)	C13—C14—H14	120.3
O2—Tb1—O9ⁱⁱ	90.98 (13)	C10—C14—H14	120.3
O2W—Tb1—O9ⁱⁱ	138.08 (13)	C20—C15—C16	119.6 (4)
O2—Tb1—O7	81.89 (12)	C20—C15—C21	117.5 (4)
O2W—Tb1—O7	139.50 (13)	C16—C15—C21	122.8 (4)
O9ⁱⁱ—Tb1—O7	79.42 (11)	C17—C16—C15	120.7 (4)
O2—Tb1—O4ⁱⁱⁱ	154.16 (12)	C17—C16—H16	119.7
O2W—Tb1—O4ⁱⁱⁱ	120.54 (13)	C15—C16—H16	119.7
O9ⁱⁱ—Tb1—O4ⁱⁱⁱ	78.80 (13)	C16—C17—C18	119.3 (4)
O7—Tb1—O4ⁱⁱⁱ	72.98 (11)	C16—C17—C22	123.0 (4)
O2—Tb1—O3ⁱⁱⁱ	152.82 (12)	C18—C17—C22	117.7 (4)
O2W—Tb1—O3ⁱⁱⁱ	70.93 (12)	C19—C18—C17	120.2 (4)
O9ⁱⁱ—Tb1—O3ⁱⁱⁱ	103.96 (13)	C19—C18—H18	119.9
O7—Tb1—O3ⁱⁱⁱ	122.74 (11)	C17—C18—H18	119.9
O4ⁱⁱⁱ—Tb1—O3ⁱⁱⁱ	52.81 (11)	C18—C19—C20	119.8 (4)
O2—Tb1—O8ⁱⁱ	85.77 (12)	C18—C19—N3	118.6 (4)
O2W—Tb1—O8ⁱⁱ	85.49 (13)	C20—C19—N3	121.5 (4)
O9ⁱⁱ—Tb1—O8ⁱⁱ	52.66 (11)	C15—C20—C19	120.3 (4)
O7—Tb1—O8ⁱⁱ	130.18 (10)	C15—C20—H20	119.8
O4ⁱⁱⁱ—Tb1—O8ⁱⁱ	105.78 (12)	C19—C20—H20	119.8
O3ⁱⁱⁱ—Tb1—O8ⁱⁱ	85.57 (12)	O7—C21—O6	119.9 (4)
O2—Tb1—O6	84.52 (12)	O7—C21—C15	119.5 (4)
O2W—Tb1—O6	88.54 (13)	O6—C21—C15	120.6 (4)
O9ⁱⁱ—Tb1—O6	132.24 (11)	O8—C22—O9	119.1 (4)
O7—Tb1—O6	52.86 (10)	O8—C22—C17	120.7 (4)
O4ⁱⁱⁱ—Tb1—O6	85.04 (12)	O9—C22—C17	120.1 (4)
O3ⁱⁱⁱ—Tb1—O6	101.01 (12)	O8—C22—Tb1^vii	62.0 (2)
O8ⁱⁱ—Tb1—O6	169.17 (11)	O9—C22—Tb1^vii	57.1 (2)
O2—Tb1—C7ⁱⁱⁱ	178.33 (13)	C17—C22—Tb1^vii	176.4 (3)
O2W—Tb1—C7ⁱⁱⁱ	96.05 (14)	O10—C23—N3	123.5 (5)
O9ⁱⁱ—Tb1—C7ⁱⁱⁱ	90.69 (14)	O10—C23—C24	119.8 (5)
O7—Tb1—C7ⁱⁱⁱ	98.38 (12)	N3—C23—C24	116.6 (5)
O4ⁱⁱⁱ—Tb1—C7ⁱⁱⁱ	26.52 (12)	C28—C24—C25	118.6 (5)
O3ⁱⁱⁱ—Tb1—C7ⁱⁱⁱ	26.32 (12)	C28—C24—C23	118.2 (4)
O8ⁱⁱ—Tb1—C7ⁱⁱⁱ	95.29 (12)	C25—C24—C23	123.1 (5)
O6—Tb1—C7ⁱⁱⁱ	94.32 (12)	C26—C25—C24	117.9 (5)
O2—Tb1—C22ⁱⁱ	87.76 (13)	C26—C25—H25	121.0
O2W—Tb1—C22ⁱⁱ	111.81 (15)	C24—C25—H25	121.0
O9ⁱⁱ—Tb1—C22ⁱⁱ	26.29 (12)	N4—C26—C25	124.0 (5)
O7—Tb1—C22ⁱⁱ	104.77 (12)	N4—C26—H26	118.0
O4ⁱⁱⁱ—Tb1—C22ⁱⁱ	92.83 (13)	C25—C26—H26	118.0
O3ⁱⁱⁱ—Tb1—C22ⁱⁱ	95.67 (13)	N4—C27—C28	123.4 (5)
O8ⁱⁱ—Tb1—C22ⁱⁱ	26.37 (12)	N4—C27—H27	118.3
O6—Tb1—C22ⁱⁱ	157.14 (13)	C28—C27—H27	118.3
C7ⁱⁱⁱ—Tb1—C22ⁱⁱ	93.76 (13)	C27—C28—C24	119.4 (5)
C6—C1—C2	119.8 (4)	C27—C28—H28	120.3
C6—C1—C8	119.5 (4)	C24—C28—H28	120.3
C2—C1—C8	120.6 (4)	C9—N1—C3	125.9 (4)
C3—C2—C1	120.4 (4)	C9—N1—H1	117.1
C3—C2—H2	119.8	C3—N1—H1	117.1
C1—C2—H2	119.8	C13—N2—C12	117.1 (5)
C2—C3—C4	119.5 (4)	C23—N3—C19	121.5 (4)
C2—C3—N1	118.9 (4)	C23—N3—H3	119.3
C4—C3—N1	121.6 (4)	C19—N3—H3	119.3
C5—C4—C3	119.5 (4)	C26—N4—C27	116.7 (4)
C5—C4—H4	120.3	C26—N4—Ni1^viii	121.8 (3)
C3—C4—H4	120.3	C27—N4—Ni1^viii	121.1 (3)
C6—C5—C4	121.1 (4)	C8—O1—Ni1	144.0 (3)
C6—C5—C7	121.0 (4)	C8—O2—Tb1	154.9 (3)
C4—C5—C7	117.9 (4)	C7—O3—Tb1^vi	93.7 (3)
C5—C6—C1	119.6 (4)	C7—O4—Tb1^vi	94.2 (3)
C5—C6—H6	120.2	C21—O6—Tb1	91.1 (3)
C1—C6—H6	120.2	C21—O7—Tb1	96.0 (3)
O3—C7—O4	119.1 (4)	C22—O8—Tb1^vii	91.6 (3)
O3—C7—C5	120.9 (4)	C22—O9—Tb1^vii	96.6 (3)
O4—C7—C5	120.0 (4)	Ni1—O1W—H1WB	117.5
O3—C7—Tb1^vi	60.0 (2)	Ni1—O1W—H1WA	109.4
O4—C7—Tb1^vi	59.2 (2)	H1WB—O1W—H1WA	118.0
C5—C7—Tb1^vi	177.4 (3)	Tb1—O2W—H2WA	122 (5)
O1—C8—O2	124.1 (4)	Tb1—O2W—H2WB	111.0
O1—C8—C1	118.7 (4)	H2WA—O2W—H2WB	127.1
O2—C8—C1	117.2 (4)	H3WC—O3W—H3WD	108.6
O5—C9—N1	124.2 (5)	H4WA—O4W—H4WB	107.8

C6—C1—C2—C3	−3.1 (7)	O5—C9—N1—C3	4.3 (8)
C8—C1—C2—C3	173.3 (4)	C10—C9—N1—C3	−175.7 (4)
C1—C2—C3—C4	3.2 (7)	C2—C3—N1—C9	161.9 (5)
C1—C2—C3—N1	−176.9 (4)	C4—C3—N1—C9	−18.2 (7)
C2—C3—C4—C5	−1.1 (7)	C14—C13—N2—C12	−1.5 (8)
N1—C3—C4—C5	179.0 (4)	C11—C12—N2—C13	1.0 (8)
C3—C4—C5—C6	−1.2 (7)	O10—C23—N3—C19	5.8 (7)
C3—C4—C5—C7	−179.1 (4)	C24—C23—N3—C19	−171.8 (4)
C4—C5—C6—C1	1.3 (7)	C18—C19—N3—C23	133.0 (5)
C7—C5—C6—C1	179.2 (4)	C20—C19—N3—C23	−45.5 (7)
C2—C1—C6—C5	0.8 (7)	C25—C26—N4—C27	3.1 (7)
C8—C1—C6—C5	−175.6 (4)	C25—C26—N4—Ni1^viii	−169.7 (4)
C6—C5—C7—O3	19.3 (7)	C28—C27—N4—C26	−1.1 (7)
C4—C5—C7—O3	−162.8 (4)	C28—C27—N4—Ni1^viii	171.7 (4)
C6—C5—C7—O4	−159.6 (4)	O2—C8—O1—Ni1	−119.0 (5)
C4—C5—C7—O4	18.3 (7)	C1—C8—O1—Ni1	61.6 (7)
C6—C1—C8—O1	27.8 (7)	N4ⁱ—Ni1—O1—C8	148.5 (6)
C2—C1—C8—O1	−148.5 (5)	N4^v—Ni1—O1—C8	−31.5 (6)
C6—C1—C8—O2	−151.7 (4)	O1W—Ni1—O1—C8	−122.6 (6)
C2—C1—C8—O2	32.0 (7)	O1W^iv—Ni1—O1—C8	57.4 (6)
O5—C9—C10—C11	−165.2 (5)	O1—C8—O2—Tb1	74.5 (9)
N1—C9—C10—C11	14.7 (8)	C1—C8—O2—Tb1	−106.0 (7)
O5—C9—C10—C14	12.0 (8)	O2W—Tb1—O2—C8	−92.7 (8)
N1—C9—C10—C14	−168.1 (5)	O9ⁱⁱ—Tb1—O2—C8	128.9 (8)
C14—C10—C11—C12	−1.1 (8)	O7—Tb1—O2—C8	49.7 (7)
C9—C10—C11—C12	176.1 (5)	O4ⁱⁱⁱ—Tb1—O2—C8	63.1 (8)
C10—C11—C12—N2	0.3 (8)	O3ⁱⁱⁱ—Tb1—O2—C8	−107.0 (8)
N2—C13—C14—C10	0.7 (9)	O8ⁱⁱ—Tb1—O2—C8	−178.7 (8)
C11—C10—C14—C13	0.6 (8)	O6—Tb1—O2—C8	−3.5 (7)
C9—C10—C14—C13	−176.8 (5)	C22ⁱⁱ—Tb1—O2—C8	154.9 (8)
C20—C15—C16—C17	1.6 (7)	O4—C7—O3—Tb1^vi	−3.9 (5)
C21—C15—C16—C17	−178.7 (4)	C5—C7—O3—Tb1^vi	177.1 (4)
C15—C16—C17—C18	−1.7 (7)	O3—C7—O4—Tb1^vi	4.0 (5)
C15—C16—C17—C22	179.9 (4)	C5—C7—O4—Tb1^vi	−177.1 (4)
C16—C17—C18—C19	−0.6 (7)	O7—C21—O6—Tb1	−3.3 (4)
C22—C17—C18—C19	177.9 (4)	C15—C21—O6—Tb1	177.3 (4)
C17—C18—C19—C20	3.0 (7)	O2—Tb1—O6—C21	85.9 (3)
C17—C18—C19—N3	−175.6 (4)	O2W—Tb1—O6—C21	168.7 (3)
C16—C15—C20—C19	0.9 (7)	O9ⁱⁱ—Tb1—O6—C21	−0.5 (3)
C21—C15—C20—C19	−178.9 (4)	O7—Tb1—O6—C21	1.9 (2)
C18—C19—C20—C15	−3.2 (7)	O4ⁱⁱⁱ—Tb1—O6—C21	−70.5 (3)
N3—C19—C20—C15	175.3 (4)	O3ⁱⁱⁱ—Tb1—O6—C21	−121.1 (3)
C20—C15—C21—O7	−5.5 (7)	O8ⁱⁱ—Tb1—O6—C21	112.2 (6)
C16—C15—C21—O7	174.7 (4)	C7ⁱⁱⁱ—Tb1—O6—C21	−95.3 (3)
C20—C15—C21—O6	173.8 (4)	C22ⁱⁱ—Tb1—O6—C21	15.1 (5)
C16—C15—C21—O6	−6.0 (7)	O6—C21—O7—Tb1	3.5 (5)
C16—C17—C22—O8	13.6 (7)	C15—C21—O7—Tb1	−177.2 (4)
C18—C17—C22—O8	−164.8 (4)	O2—Tb1—O7—C21	−91.2 (3)
C16—C17—C22—O9	−167.3 (5)	O2W—Tb1—O7—C21	−22.5 (4)
C18—C17—C22—O9	14.3 (7)	O9ⁱⁱ—Tb1—O7—C21	176.3 (3)
O10—C23—C24—C28	−41.8 (7)	O4ⁱⁱⁱ—Tb1—O7—C21	94.9 (3)
N3—C23—C24—C28	136.0 (5)	O3ⁱⁱⁱ—Tb1—O7—C21	76.4 (3)
O10—C23—C24—C25	134.5 (5)	O8ⁱⁱ—Tb1—O7—C21	−168.6 (3)
N3—C23—C24—C25	−47.8 (7)	O6—Tb1—O7—C21	−1.9 (3)
C28—C24—C25—C26	−1.3 (7)	C7ⁱⁱⁱ—Tb1—O7—C21	87.1 (3)
C23—C24—C25—C26	−177.5 (4)	C22ⁱⁱ—Tb1—O7—C21	−176.7 (3)
C24—C25—C26—N4	−1.9 (8)	O9—C22—O8—Tb1^vii	−1.7 (5)
N4—C27—C28—C24	−2.0 (8)	C17—C22—O8—Tb1^vii	177.4 (4)
C25—C24—C28—C27	3.2 (7)	O8—C22—O9—Tb1^vii	1.8 (5)
C23—C24—C28—C27	179.5 (4)	C17—C22—O9—Tb1^vii	−177.3 (4)

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

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
N1—H1···O4W^ix	0.86	2.16	3.000 (6)	166
N3—H3···O4^v	0.86	2.17	2.958 (6)	153
O1W—H1WA···O6^iv	0.82	2.24	2.988 (4)	151
O1W—H1WB···O3W^x	0.85	2.04	2.763 (6)	143
O2W—H2WA···O3W^xi	0.85 (6)	2.47 (6)	3.117 (7)	134 (5)
O2W—H2WB···N2ⁱ	0.85	1.92	2.672 (6)	147
O3W—H3WC···O3^x	0.85	1.92	2.736 (5)	159
O3W—H3WD···O8ⁱⁱ	0.85	1.98	2.793 (5)	160
O4W—H4WA···O9^xii	0.85	2.25	3.088 (6)	170
O4W—H4WB···O9^v	0.85	2.19	3.034 (5)	172

Symmetry codes: (i) x, y, z−1; (ii) x−1, y, z; (iv) −x+2, −y+1, −z+1; (v) −x+2, −y+1, −z+2; (ix) −x+1, −y+1, −z+2; (x) −x+1, −y+1, −z+1; (xi) −x+1, −y, −z+1; (xii) x−1, y+1, z.

Experimental details

Crystal data
Chemical formula	[NiTb₂(C₁₄H₈N₂O₅)₄(H₂O)₄]·4H₂O
M_r	1657.57
Crystal system, space group	Triclinic, P1
Temperature (K)	293
a, b, c (Å)	10.2347 (12), 10.8608 (13), 13.7452 (17)
α, β, γ (°)	79.053 (2), 78.745 (1), 86.326 (2)
V (Å³)	1470.7 (3)
Z	1
Radiation type	Mo Kα
µ (mm⁻¹)	2.80
Crystal size (mm)	0.22 × 0.16 × 0.08

Data collection
Diffractometer	Bruker APEX CCD
Absorption correction	Multi-scan (SADABS; Bruker, 2001)
T_min, T_max	0.578, 0.807
No. of measured, independent and observed [I > 2σ(I)] reflections	7345, 5088, 4486
R_int	0.045
(sin θ/λ)_max (Å⁻¹)	0.595

Refinement
R[F² > 2σ(F²)], wR(F²), S	0.033, 0.074, 1.03
No. of reflections	5088
No. of parameters	434
No. of restraints	1
H-atom treatment	H atoms treated by a mixture of independent and constrained refinement
Δρ_max, Δρ_min (e Å⁻³)	1.24, −0.85

Computer programs: SMART (Bruker, 2007), SAINT (Bruker, 2007), XP in SHELXTL (Sheldrick, 2008) and DIAMOND (Brandenburg, 1999).

Hydrogen-bond geometry (Å, º) top

D—H···A	D—H	H···A	D···A	D—H···A
N1—H1···O4Wⁱ	0.86	2.16	3.000 (6)	166
N3—H3···O4ⁱⁱ	0.86	2.17	2.958 (6)	153
O1W—H1WA···O6ⁱⁱⁱ	0.82	2.24	2.988 (4)	151
O1W—H1WB···O3W^iv	0.85	2.04	2.763 (6)	143
O2W—H2WA···O3W^v	0.85 (6)	2.47 (6)	3.117 (7)	134 (5)
O2W—H2WB···N2^vi	0.85	1.92	2.672 (6)	147
O3W—H3WC···O3^iv	0.85	1.92	2.736 (5)	159
O3W—H3WD···O8^vii	0.85	1.98	2.793 (5)	160
O4W—H4WA···O9^viii	0.85	2.25	3.088 (6)	170
O4W—H4WB···O9ⁱⁱ	0.85	2.19	3.034 (5)	172

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

Acknowledgements

This work was supported by the Open Fund Project of Key Laboratories in Hunan Universities (grant No. 11 K009) and the Hunan Provincial Natural Science Foundation of China (grant No.13 J J6069).

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