metal-organic compounds
Poly[tetradecaaquatetrakis(μ3-imidazole-4,5-dicarboxylato)hexa-μ3-sulfato-cobalt(II)hexasamarium(III)]
aSchool of Chemistry and the Environment, South China Normal University, Guangzhou 510631, People's Republic of China, and bSchool of Light Industry and Food Science, South China University of Technology, Guangzhou 510641, People's Republic of China
*Correspondence e-mail: simingzhu76@yahoo.com.cn
In the title three-dimensional compound, [CoSm6(C5H2N2O4)4(SO4)6(H2O)14]n, the CoII ion is six-coordinated with two O atoms and two N atoms from two imidazole-4,5-dicarboxylate ligands and two coordinated water molecules, giving a slightly distorted octahedral geometry. One SmIII ion is eight-coordinated in a bicapped trigonal–prismatic coordination geometry by four O atoms from two imidazole-4,5-dicarboxylate ligands, two O atoms from two SO42− anions and two coordinated water molecules. The other two SmIII ions are nine-coordinated in a tricapped trigonal–prismatic coordination geometry; one of these SmIII ions is bonded to four O atoms from two imidazole-4,5-dicarboxylate ligands, three O atoms from three SO42− anions and two water O atoms, and the other SmIII ion is coordinated by one O atom and one N atom from one imidazole-4,5-dicarboxylate ligand, five O atoms from three SO42− anions, as well as two coordinated water molecules. The is further stabilized by N—H⋯O, O—H⋯O, and C—H⋯O hydrogen-bonding interactions.
Related literature
For the application of lanthanide transition metal heterometallic complexes with bridging multifunctional organic ligands, see: Cheng et al. (2006); Kuang et al. (2007); Sun & Yang (2007); Zhu et al. (2010).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT (Bruker, 2004); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).
Supporting information
10.1107/S1600536811030169/om2450sup1.cif
contains datablocks I, global. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536811030169/om2450Isup2.hkl
A mixture of CoSO4.7H2O(0.141 g, 0.5 mmol), Sm2O3(0.087 g, 0.25 mmol), imidazole-4,5-dicarboxylic acid (0.156 g, 1 mmol), and H2O(10 ml) was sealed in a 20 ml Teflon-lined reaction vessel at 443 K for 5 days then slowly cooled to room temperature. The product was collected by filtration, washed with water and air-dried. Red block crystals suitable for X-ray analysis were obtained.
H atoms bonded to C atoms were positioned geometrically and refined as riding, with C—H = 0.93 Å and Uiso(H) = 1.2 Ueq(C). H atoms bonded to N atoms and H atoms of water molecules were found from difference Fourier maps and refined isotropically with a restraint of N—H = 0.87 Å, O—H = 0.82 Å and Uiso(H) = 1.5 Ueq(N, O).
Data collection: APEX2 (Bruker, 2004); cell
SAINT (Bruker, 2004); data reduction: SAINT (Bruker, 2004); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: XP in SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97 (Sheldrick, 2008).Fig. 1. The molecular structure showing the atomic-numbering scheme and displacement ellipsoids drawn at the 30% probability level. Hydrogen atoms were omitted for clarity. Symmetry codes: (A) -x, -1 - y, 2 - z; (B) -1 + x, y, z; (C) - x, - y, 1 - z; (D) 1 + x, y, z; (E) 1 - x, 1 - y, 1 - z. | |
Fig. 2. A view of the three-dimensional structure of the title compound. Hydrogen atoms were omitted for clarity. |
[CoSm6(C5H2N2O4)4(SO4)6(H2O)14] | Z = 1 |
Mr = 2406.08 | F(000) = 1139 |
Triclinic, P1 | Dx = 2.992 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 6.6395 (10) Å | Cell parameters from 2636 reflections |
b = 9.5090 (14) Å | θ = 2.2–27.9° |
c = 21.619 (3) Å | µ = 7.17 mm−1 |
α = 97.068 (2)° | T = 296 K |
β = 94.391 (2)° | Block, red |
γ = 98.006 (2)° | 0.20 × 0.18 × 0.15 mm |
V = 1335.2 (3) Å3 |
Bruker APEXII area-detector diffractometer | 4716 independent reflections |
Radiation source: fine-focus sealed tube | 3971 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.024 |
ϕ and ω scan | θmax = 25.2°, θmin = 1.9° |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | h = −7→5 |
Tmin = 0.260, Tmax = 0.341 | k = −11→11 |
6967 measured reflections | l = −25→25 |
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)] = 0.031 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.070 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | w = 1/[σ2(Fo2) + (0.0293P)2 + 2.3668P] where P = (Fo2 + 2Fc2)/3 |
4716 reflections | (Δ/σ)max = 0.002 |
478 parameters | Δρmax = 1.00 e Å−3 |
23 restraints | Δρmin = −1.03 e Å−3 |
[CoSm6(C5H2N2O4)4(SO4)6(H2O)14] | γ = 98.006 (2)° |
Mr = 2406.08 | V = 1335.2 (3) Å3 |
Triclinic, P1 | Z = 1 |
a = 6.6395 (10) Å | Mo Kα radiation |
b = 9.5090 (14) Å | µ = 7.17 mm−1 |
c = 21.619 (3) Å | T = 296 K |
α = 97.068 (2)° | 0.20 × 0.18 × 0.15 mm |
β = 94.391 (2)° |
Bruker APEXII area-detector diffractometer | 4716 independent reflections |
Absorption correction: multi-scan (SADABS; Sheldrick, 1996) | 3971 reflections with I > 2σ(I) |
Tmin = 0.260, Tmax = 0.341 | Rint = 0.024 |
6967 measured reflections |
R[F2 > 2σ(F2)] = 0.031 | 23 restraints |
wR(F2) = 0.070 | H atoms treated by a mixture of independent and constrained refinement |
S = 1.02 | Δρmax = 1.00 e Å−3 |
4716 reflections | Δρmin = −1.03 e Å−3 |
478 parameters |
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. |
x | y | z | Uiso*/Ueq | ||
Sm3 | 0.33206 (6) | 0.01643 (4) | 0.860687 (16) | 0.01396 (10) | |
Sm2 | 0.06536 (5) | −0.11526 (4) | 0.677756 (16) | 0.01039 (9) | |
Sm1 | 0.34787 (5) | 0.29252 (4) | 0.577813 (16) | 0.01209 (10) | |
Co1 | 0.0000 | −0.5000 | 1.0000 | 0.0144 (3) | |
S1 | 0.3305 (3) | 0.35636 (18) | 0.43568 (8) | 0.0117 (3) | |
S2 | −0.1527 (3) | 0.18219 (18) | 0.62306 (8) | 0.0144 (4) | |
S3 | 0.7700 (3) | −0.05896 (19) | 0.81404 (8) | 0.0163 (4) | |
N1 | 0.4459 (9) | 0.4015 (6) | 0.6919 (3) | 0.0158 (13) | |
N2 | 0.5267 (9) | 0.5408 (6) | 0.7811 (3) | 0.0145 (13) | |
N3 | −0.0134 (9) | −0.5242 (6) | 0.8997 (3) | 0.0139 (13) | |
N4 | −0.0377 (9) | −0.5503 (6) | 0.7965 (2) | 0.0129 (12) | |
C1 | 0.3005 (10) | 0.1744 (7) | 0.7196 (3) | 0.0110 (14) | |
C2 | 0.4007 (10) | 0.3228 (7) | 0.7395 (3) | 0.0123 (14) | |
C3 | 0.4487 (10) | 0.4087 (7) | 0.7958 (3) | 0.0113 (14) | |
C4 | 0.4360 (10) | 0.3875 (7) | 0.8624 (3) | 0.0147 (15) | |
C5 | 0.5213 (11) | 0.5311 (8) | 0.7190 (3) | 0.0176 (16) | |
H5 | 0.5655 | 0.6069 | 0.6975 | 0.021* | |
C6 | 0.1796 (11) | −0.2840 (7) | 0.9305 (3) | 0.0154 (15) | |
C7 | 0.0741 (10) | −0.3984 (7) | 0.8801 (3) | 0.0131 (15) | |
C8 | 0.0601 (10) | −0.4121 (7) | 0.8155 (3) | 0.0114 (14) | |
C9 | 0.1121 (11) | −0.3170 (7) | 0.7687 (3) | 0.0148 (15) | |
C10 | −0.0769 (10) | −0.6128 (7) | 0.8472 (3) | 0.0144 (15) | |
H11 | −0.1408 | −0.7067 | 0.8459 | 0.017* | |
O1 | 0.1806 (7) | 0.3703 (5) | 0.4827 (2) | 0.0177 (11) | |
O2 | 0.4117 (8) | 0.4971 (5) | 0.4209 (2) | 0.0221 (12) | |
O3 | 0.2273 (7) | 0.2689 (5) | 0.3784 (2) | 0.0198 (11) | |
O4 | 0.4904 (7) | 0.2855 (5) | 0.4640 (2) | 0.0232 (12) | |
O5 | −0.0086 (8) | 0.2036 (6) | 0.5754 (2) | 0.0259 (12) | |
O6 | −0.1534 (8) | 0.0358 (5) | 0.6398 (3) | 0.0319 (14) | |
O7 | −0.0966 (9) | 0.2882 (6) | 0.6773 (3) | 0.0410 (16) | |
O8 | −0.3591 (7) | 0.1881 (5) | 0.5942 (2) | 0.0242 (12) | |
O9 | 0.2794 (7) | 0.1296 (5) | 0.6617 (2) | 0.0152 (10) | |
O10 | 0.2340 (7) | 0.0918 (5) | 0.7580 (2) | 0.0137 (10) | |
O11 | 0.3918 (8) | 0.2647 (5) | 0.8764 (2) | 0.0231 (12) | |
O12 | 0.4709 (8) | 0.4987 (5) | 0.9016 (2) | 0.0226 (12) | |
O13 | 0.2724 (8) | −0.1722 (5) | 0.9173 (2) | 0.0205 (12) | |
O14 | 0.1701 (8) | −0.3116 (5) | 0.9862 (2) | 0.0184 (11) | |
O15 | 0.2062 (7) | −0.1901 (5) | 0.7844 (2) | 0.0148 (11) | |
O16 | 0.0501 (8) | −0.3614 (5) | 0.7124 (2) | 0.0198 (11) | |
O17 | 0.6400 (8) | 0.0535 (6) | 0.8074 (3) | 0.0347 (14) | |
O18 | 0.6559 (11) | −0.1679 (6) | 0.8443 (3) | 0.052 (2) | |
O19 | 0.8096 (7) | −0.1215 (5) | 0.7507 (2) | 0.0212 (12) | |
O20 | 0.9627 (7) | 0.0049 (5) | 0.8501 (2) | 0.0243 (12) | |
H1 | 0.563 (12) | 0.623 (5) | 0.804 (3) | 0.036* | |
H2 | −0.042 (12) | −0.598 (7) | 0.7595 (18) | 0.036* | |
O1W | 0.1566 (8) | 0.5002 (6) | 0.6016 (2) | 0.0261 (13) | |
H1W | 0.096 (10) | 0.495 (9) | 0.6332 (19) | 0.039* | |
H2W | 0.065 (8) | 0.500 (9) | 0.574 (2) | 0.039* | |
O2W | 0.2776 (10) | 0.0581 (6) | 0.5120 (3) | 0.0341 (14) | |
H3W | 0.218 (13) | −0.017 (5) | 0.522 (3) | 0.051* | |
H4W | 0.292 (14) | 0.032 (8) | 0.4750 (16) | 0.051* | |
O3W | 0.1551 (8) | −0.1832 (5) | 0.5707 (2) | 0.0227 (12) | |
H5W | 0.266 (5) | −0.213 (7) | 0.567 (4) | 0.034* | |
H6W | 0.073 (7) | −0.249 (6) | 0.550 (3) | 0.034* | |
O4W | 0.4309 (8) | −0.1323 (6) | 0.6751 (2) | 0.0259 (12) | |
H7W | 0.496 (10) | −0.127 (9) | 0.7089 (18) | 0.039* | |
H8W | 0.504 (10) | −0.087 (8) | 0.654 (3) | 0.039* | |
O5W | 0.1776 (9) | 0.0980 (6) | 0.9654 (3) | 0.0349 (14) | |
H9W | 0.060 (6) | 0.083 (9) | 0.949 (4) | 0.052* | |
H10W | 0.184 (12) | 0.170 (6) | 0.991 (3) | 0.052* | |
O6W | 0.6080 (9) | 0.0697 (5) | 0.9447 (2) | 0.0259 (13) | |
H11W | 0.651 (12) | 0.152 (3) | 0.959 (3) | 0.039* | |
H12W | 0.639 (12) | 0.021 (6) | 0.971 (3) | 0.039* | |
O7W | −0.2592 (8) | −0.3945 (6) | 0.9992 (2) | 0.0225 (12) | |
H13W | −0.311 (10) | −0.413 (8) | 1.0306 (17) | 0.034* | |
H14W | −0.348 (8) | −0.425 (8) | 0.971 (2) | 0.034* |
U11 | U22 | U33 | U12 | U13 | U23 | |
Sm3 | 0.0175 (2) | 0.01187 (19) | 0.01055 (18) | −0.00508 (15) | −0.00139 (15) | 0.00379 (14) |
Sm2 | 0.01014 (19) | 0.01094 (18) | 0.00963 (18) | −0.00008 (14) | 0.00035 (14) | 0.00181 (13) |
Sm1 | 0.0119 (2) | 0.01235 (19) | 0.01166 (18) | 0.00027 (14) | 0.00082 (14) | 0.00227 (14) |
Co1 | 0.0199 (8) | 0.0113 (7) | 0.0108 (7) | −0.0047 (6) | 0.0021 (6) | 0.0040 (5) |
S1 | 0.0102 (9) | 0.0135 (8) | 0.0101 (8) | −0.0031 (7) | 0.0000 (7) | 0.0024 (6) |
S2 | 0.0132 (9) | 0.0142 (9) | 0.0161 (9) | 0.0018 (7) | 0.0027 (7) | 0.0034 (7) |
S3 | 0.0127 (9) | 0.0206 (9) | 0.0133 (9) | −0.0015 (7) | 0.0020 (7) | −0.0023 (7) |
N1 | 0.022 (3) | 0.015 (3) | 0.011 (3) | −0.001 (3) | 0.005 (3) | 0.003 (2) |
N2 | 0.018 (3) | 0.011 (3) | 0.013 (3) | −0.001 (3) | 0.003 (3) | 0.000 (2) |
N3 | 0.015 (3) | 0.011 (3) | 0.014 (3) | −0.007 (2) | −0.001 (3) | 0.004 (2) |
N4 | 0.021 (3) | 0.011 (3) | 0.007 (3) | 0.001 (2) | 0.004 (3) | −0.002 (2) |
C1 | 0.011 (4) | 0.011 (3) | 0.013 (3) | 0.002 (3) | 0.004 (3) | 0.002 (3) |
C2 | 0.008 (3) | 0.016 (4) | 0.013 (3) | 0.003 (3) | 0.002 (3) | 0.001 (3) |
C3 | 0.016 (4) | 0.008 (3) | 0.010 (3) | −0.003 (3) | 0.006 (3) | −0.001 (3) |
C4 | 0.011 (4) | 0.015 (4) | 0.017 (4) | 0.006 (3) | −0.002 (3) | −0.004 (3) |
C5 | 0.020 (4) | 0.020 (4) | 0.013 (4) | 0.001 (3) | 0.003 (3) | 0.006 (3) |
C6 | 0.015 (4) | 0.018 (4) | 0.011 (3) | 0.001 (3) | 0.001 (3) | −0.001 (3) |
C7 | 0.015 (4) | 0.009 (3) | 0.016 (4) | 0.000 (3) | 0.003 (3) | 0.009 (3) |
C8 | 0.011 (4) | 0.016 (4) | 0.007 (3) | 0.005 (3) | −0.002 (3) | 0.003 (3) |
C9 | 0.016 (4) | 0.015 (4) | 0.016 (4) | 0.005 (3) | 0.005 (3) | 0.003 (3) |
C10 | 0.009 (4) | 0.013 (3) | 0.021 (4) | −0.004 (3) | 0.004 (3) | 0.002 (3) |
O1 | 0.015 (3) | 0.022 (3) | 0.013 (2) | −0.004 (2) | 0.003 (2) | 0.002 (2) |
O2 | 0.030 (3) | 0.016 (3) | 0.020 (3) | −0.006 (2) | 0.007 (2) | 0.007 (2) |
O3 | 0.019 (3) | 0.024 (3) | 0.013 (2) | −0.007 (2) | 0.004 (2) | −0.004 (2) |
O4 | 0.016 (3) | 0.028 (3) | 0.028 (3) | 0.008 (2) | 0.000 (2) | 0.009 (2) |
O5 | 0.015 (3) | 0.040 (3) | 0.023 (3) | −0.001 (2) | 0.004 (2) | 0.010 (2) |
O6 | 0.015 (3) | 0.018 (3) | 0.066 (4) | 0.000 (2) | 0.002 (3) | 0.025 (3) |
O7 | 0.044 (4) | 0.045 (4) | 0.026 (3) | 0.003 (3) | 0.001 (3) | −0.021 (3) |
O8 | 0.015 (3) | 0.033 (3) | 0.028 (3) | 0.011 (2) | −0.001 (2) | 0.010 (2) |
O9 | 0.021 (3) | 0.012 (2) | 0.011 (2) | 0.000 (2) | 0.001 (2) | 0.0008 (19) |
O10 | 0.016 (3) | 0.013 (2) | 0.013 (2) | −0.002 (2) | 0.005 (2) | 0.0036 (19) |
O11 | 0.041 (3) | 0.012 (3) | 0.016 (3) | −0.001 (2) | 0.005 (2) | 0.006 (2) |
O12 | 0.031 (3) | 0.017 (3) | 0.017 (3) | −0.001 (2) | 0.000 (2) | −0.003 (2) |
O13 | 0.030 (3) | 0.016 (3) | 0.010 (2) | −0.011 (2) | −0.004 (2) | 0.001 (2) |
O14 | 0.028 (3) | 0.013 (2) | 0.010 (2) | −0.012 (2) | −0.001 (2) | 0.0035 (19) |
O15 | 0.021 (3) | 0.010 (2) | 0.012 (2) | −0.003 (2) | 0.002 (2) | 0.0015 (19) |
O16 | 0.032 (3) | 0.015 (3) | 0.010 (3) | 0.004 (2) | −0.004 (2) | −0.001 (2) |
O17 | 0.022 (3) | 0.059 (4) | 0.026 (3) | 0.022 (3) | 0.003 (3) | −0.001 (3) |
O18 | 0.079 (5) | 0.042 (4) | 0.022 (3) | −0.031 (4) | 0.019 (3) | −0.008 (3) |
O19 | 0.013 (3) | 0.033 (3) | 0.016 (3) | 0.001 (2) | 0.003 (2) | −0.005 (2) |
O20 | 0.014 (3) | 0.029 (3) | 0.025 (3) | −0.002 (2) | 0.000 (2) | −0.010 (2) |
O1W | 0.032 (3) | 0.034 (3) | 0.014 (3) | 0.011 (3) | 0.006 (2) | 0.003 (3) |
O2W | 0.048 (4) | 0.022 (3) | 0.027 (3) | −0.006 (3) | 0.005 (3) | −0.002 (2) |
O3W | 0.015 (3) | 0.025 (3) | 0.024 (3) | −0.004 (2) | 0.004 (2) | −0.006 (2) |
O4W | 0.019 (3) | 0.041 (4) | 0.020 (3) | 0.009 (3) | 0.002 (2) | 0.006 (3) |
O5W | 0.043 (4) | 0.028 (3) | 0.031 (4) | 0.002 (3) | 0.005 (3) | −0.005 (3) |
O6W | 0.041 (4) | 0.016 (3) | 0.016 (3) | −0.002 (3) | −0.012 (3) | 0.003 (2) |
O7W | 0.024 (3) | 0.030 (3) | 0.013 (3) | 0.003 (2) | 0.003 (2) | 0.001 (2) |
Sm3—O13 | 2.300 (5) | S3—O19 | 1.481 (5) |
Sm3—O11 | 2.317 (5) | N1—C5 | 1.311 (9) |
Sm3—O15 | 2.411 (4) | N1—C2 | 1.374 (8) |
Sm3—O17 | 2.427 (5) | N2—C5 | 1.331 (8) |
Sm3—O20i | 2.431 (5) | N2—C3 | 1.375 (8) |
Sm3—O6W | 2.432 (5) | N2—H1 | 0.87 (2) |
Sm3—O10 | 2.484 (4) | N3—C10 | 1.330 (8) |
Sm3—O5W | 2.631 (6) | N3—C7 | 1.384 (8) |
Sm3—S3 | 3.2922 (19) | N4—C10 | 1.335 (8) |
Sm2—O6 | 2.353 (5) | N4—C8 | 1.380 (8) |
Sm2—O19i | 2.404 (5) | N4—H2 | 0.86 (2) |
Sm2—O3ii | 2.408 (5) | C1—O9 | 1.262 (8) |
Sm2—O4W | 2.459 (5) | C1—O10 | 1.272 (7) |
Sm2—O3W | 2.465 (5) | C1—C2 | 1.471 (9) |
Sm2—O10 | 2.527 (4) | C2—C3 | 1.368 (9) |
Sm2—O16 | 2.535 (5) | C3—C4 | 1.486 (9) |
Sm2—O9 | 2.630 (4) | C4—O11 | 1.243 (8) |
Sm2—O15 | 2.636 (4) | C4—O12 | 1.252 (8) |
Sm2—C9 | 2.939 (7) | C5—H5 | 0.9300 |
Sm2—C1 | 2.969 (6) | C6—O13 | 1.229 (8) |
Sm1—O8iii | 2.327 (5) | C6—O14 | 1.268 (8) |
Sm1—O2iv | 2.375 (5) | C6—C7 | 1.496 (9) |
Sm1—O5 | 2.394 (5) | C7—C8 | 1.382 (9) |
Sm1—O2W | 2.457 (5) | C8—C9 | 1.467 (9) |
Sm1—O1 | 2.502 (5) | C9—O16 | 1.255 (8) |
Sm1—O1W | 2.515 (5) | C9—O15 | 1.272 (8) |
Sm1—N1 | 2.552 (6) | C10—H11 | 0.9300 |
Sm1—O9 | 2.553 (4) | O2—Sm1iv | 2.375 (5) |
Sm1—O4 | 2.699 (5) | O3—Sm2ii | 2.408 (5) |
Sm1—S1 | 3.2011 (17) | O8—Sm1i | 2.327 (5) |
Co1—O14 | 2.048 (4) | O19—Sm2iii | 2.404 (5) |
Co1—O14v | 2.048 (4) | O20—Sm3iii | 2.431 (5) |
Co1—O7W | 2.109 (5) | O1W—H1W | 0.82 (2) |
Co1—O7Wv | 2.109 (5) | O1W—H2W | 0.82 (2) |
Co1—N3v | 2.146 (5) | O2W—H3W | 0.83 (2) |
Co1—N3 | 2.146 (5) | O2W—H4W | 0.82 (2) |
S1—O2 | 1.454 (5) | O3W—H5W | 0.83 (2) |
S1—O3 | 1.467 (5) | O3W—H6W | 0.83 (2) |
S1—O4 | 1.469 (5) | O4W—H7W | 0.81 (2) |
S1—O1 | 1.483 (5) | O4W—H8W | 0.81 (2) |
S2—O7 | 1.438 (5) | O5W—H9W | 0.82 (2) |
S2—O5 | 1.472 (5) | O5W—H10W | 0.81 (2) |
S2—O8 | 1.473 (5) | O6W—H11W | 0.81 (2) |
S2—O6 | 1.480 (5) | O6W—H12W | 0.80 (2) |
S3—O18 | 1.449 (6) | O7W—H13W | 0.81 (2) |
S3—O20 | 1.459 (5) | O7W—H14W | 0.81 (2) |
S3—O17 | 1.478 (6) | ||
O13—Sm3—O11 | 139.58 (16) | O4—Sm1—S1 | 27.17 (11) |
O13—Sm3—O15 | 74.54 (15) | O14—Co1—O14v | 180.000 (1) |
O11—Sm3—O15 | 143.87 (16) | O14—Co1—O7W | 88.2 (2) |
O13—Sm3—O17 | 120.75 (19) | O14v—Co1—O7W | 91.8 (2) |
O11—Sm3—O17 | 81.19 (19) | O14—Co1—O7Wv | 91.8 (2) |
O15—Sm3—O17 | 89.23 (17) | O14v—Co1—O7Wv | 88.2 (2) |
O13—Sm3—O20i | 85.31 (19) | O7W—Co1—O7Wv | 180.000 (3) |
O11—Sm3—O20i | 93.60 (18) | O14—Co1—N3v | 101.16 (19) |
O15—Sm3—O20i | 74.62 (16) | O14v—Co1—N3v | 78.84 (19) |
O17—Sm3—O20i | 144.84 (18) | O7W—Co1—N3v | 88.7 (2) |
O13—Sm3—O6W | 76.76 (17) | O7Wv—Co1—N3v | 91.3 (2) |
O11—Sm3—O6W | 77.13 (18) | O14—Co1—N3 | 78.84 (19) |
O15—Sm3—O6W | 133.98 (17) | O14v—Co1—N3 | 101.16 (19) |
O17—Sm3—O6W | 75.58 (19) | O7W—Co1—N3 | 91.3 (2) |
O20i—Sm3—O6W | 137.37 (18) | O7Wv—Co1—N3 | 88.7 (2) |
O13—Sm3—O10 | 141.54 (15) | N3v—Co1—N3 | 180.000 (2) |
O11—Sm3—O10 | 74.32 (16) | O2—S1—O3 | 109.0 (3) |
O15—Sm3—O10 | 69.57 (15) | O2—S1—O4 | 111.9 (3) |
O17—Sm3—O10 | 72.68 (17) | O3—S1—O4 | 111.1 (3) |
O20i—Sm3—O10 | 72.44 (16) | O2—S1—O1 | 110.0 (3) |
O6W—Sm3—O10 | 139.86 (17) | O3—S1—O1 | 108.9 (3) |
O13—Sm3—O5W | 69.51 (18) | O4—S1—O1 | 105.9 (3) |
O11—Sm3—O5W | 73.27 (18) | O2—S1—Sm1 | 120.5 (2) |
O15—Sm3—O5W | 127.62 (17) | O3—S1—Sm1 | 130.2 (2) |
O17—Sm3—O5W | 142.04 (19) | O4—S1—Sm1 | 57.0 (2) |
O20i—Sm3—O5W | 65.80 (18) | O1—S1—Sm1 | 49.36 (19) |
O6W—Sm3—O5W | 71.7 (2) | O7—S2—O5 | 110.8 (3) |
O10—Sm3—O5W | 124.27 (17) | O7—S2—O8 | 111.8 (3) |
O13—Sm3—S3 | 96.29 (14) | O5—S2—O8 | 107.8 (3) |
O11—Sm3—S3 | 101.50 (14) | O7—S2—O6 | 111.0 (4) |
O15—Sm3—S3 | 80.81 (12) | O5—S2—O6 | 108.4 (3) |
O17—Sm3—S3 | 24.47 (14) | O8—S2—O6 | 106.9 (3) |
O20i—Sm3—S3 | 154.02 (12) | O18—S3—O20 | 112.5 (4) |
O6W—Sm3—S3 | 67.43 (14) | O18—S3—O17 | 107.1 (4) |
O10—Sm3—S3 | 91.30 (11) | O20—S3—O17 | 109.2 (3) |
O5W—Sm3—S3 | 138.88 (14) | O18—S3—O19 | 109.7 (3) |
O6—Sm2—O19i | 77.78 (18) | O20—S3—O19 | 109.8 (3) |
O6—Sm2—O3ii | 73.35 (18) | O17—S3—O19 | 108.5 (3) |
O19i—Sm2—O3ii | 75.41 (16) | O18—S3—Sm3 | 64.5 (3) |
O6—Sm2—O4W | 134.97 (18) | O20—S3—Sm3 | 120.6 (2) |
O19i—Sm2—O4W | 139.39 (17) | O17—S3—Sm3 | 42.9 (2) |
O3ii—Sm2—O4W | 129.63 (17) | O19—S3—Sm3 | 127.5 (2) |
O6—Sm2—O3W | 90.2 (2) | C5—N1—C2 | 105.9 (6) |
O19i—Sm2—O3W | 148.19 (16) | C5—N1—Sm1 | 133.2 (4) |
O3ii—Sm2—O3W | 72.93 (16) | C2—N1—Sm1 | 120.6 (4) |
O4W—Sm2—O3W | 67.74 (17) | C5—N2—C3 | 107.9 (6) |
O6—Sm2—O10 | 88.95 (18) | C5—N2—H1 | 120 (6) |
O19i—Sm2—O10 | 81.35 (15) | C3—N2—H1 | 131 (6) |
O3ii—Sm2—O10 | 153.19 (15) | C10—N3—C7 | 104.9 (6) |
O4W—Sm2—O10 | 77.07 (17) | C10—N3—Co1 | 144.9 (5) |
O3W—Sm2—O10 | 128.31 (15) | C7—N3—Co1 | 110.2 (4) |
O6—Sm2—O16 | 140.10 (17) | C10—N4—C8 | 108.7 (5) |
O19i—Sm2—O16 | 75.70 (17) | C10—N4—H2 | 123 (6) |
O3ii—Sm2—O16 | 71.47 (17) | C8—N4—H2 | 126 (5) |
O4W—Sm2—O16 | 83.19 (18) | O9—C1—O10 | 119.7 (6) |
O3W—Sm2—O16 | 96.93 (16) | O9—C1—C2 | 117.5 (6) |
O10—Sm2—O16 | 115.56 (14) | O10—C1—C2 | 122.9 (6) |
O6—Sm2—O9 | 70.15 (16) | O9—C1—Sm2 | 62.2 (3) |
O19i—Sm2—O9 | 120.47 (16) | O10—C1—Sm2 | 57.6 (3) |
O3ii—Sm2—O9 | 134.74 (16) | C2—C1—Sm2 | 175.1 (5) |
O4W—Sm2—O9 | 68.06 (17) | C3—C2—N1 | 109.4 (6) |
O3W—Sm2—O9 | 81.28 (15) | C3—C2—C1 | 135.0 (6) |
O10—Sm2—O9 | 50.23 (14) | N1—C2—C1 | 115.4 (6) |
O16—Sm2—O9 | 149.71 (16) | C2—C3—N2 | 105.2 (6) |
O6—Sm2—O15 | 140.23 (18) | C2—C3—C4 | 135.0 (6) |
O19i—Sm2—O15 | 69.01 (16) | N2—C3—C4 | 119.8 (6) |
O3ii—Sm2—O15 | 116.59 (15) | O11—C4—O12 | 124.0 (7) |
O4W—Sm2—O15 | 70.80 (16) | O11—C4—C3 | 119.9 (6) |
O3W—Sm2—O15 | 129.46 (16) | O12—C4—C3 | 116.1 (6) |
O10—Sm2—O15 | 65.45 (14) | N1—C5—N2 | 111.6 (6) |
O16—Sm2—O15 | 50.12 (14) | N1—C5—H5 | 124.2 |
O9—Sm2—O15 | 108.56 (14) | N2—C5—H5 | 124.2 |
O6—Sm2—C9 | 143.70 (19) | O13—C6—O14 | 123.2 (6) |
O19i—Sm2—C9 | 66.30 (18) | O13—C6—C7 | 120.7 (6) |
O3ii—Sm2—C9 | 92.08 (18) | O14—C6—C7 | 116.0 (6) |
O4W—Sm2—C9 | 79.88 (19) | C8—C7—N3 | 110.4 (6) |
O3W—Sm2—C9 | 117.63 (18) | C8—C7—C6 | 133.2 (6) |
O10—Sm2—C9 | 90.65 (17) | N3—C7—C6 | 116.1 (6) |
O16—Sm2—C9 | 25.15 (17) | N4—C8—C7 | 104.3 (5) |
O9—Sm2—C9 | 133.08 (17) | N4—C8—C9 | 119.9 (6) |
O15—Sm2—C9 | 25.64 (16) | C7—C8—C9 | 135.7 (6) |
O6—Sm2—C1 | 77.54 (18) | O16—C9—O15 | 120.3 (6) |
O19i—Sm2—C1 | 100.65 (17) | O16—C9—C8 | 117.9 (6) |
O3ii—Sm2—C1 | 150.81 (18) | O15—C9—C8 | 121.6 (6) |
O4W—Sm2—C1 | 71.87 (18) | O16—C9—Sm2 | 59.1 (3) |
O3W—Sm2—C1 | 105.37 (17) | O15—C9—Sm2 | 63.8 (3) |
O10—Sm2—C1 | 25.15 (15) | C8—C9—Sm2 | 159.8 (5) |
O16—Sm2—C1 | 136.44 (17) | N3—C10—N4 | 111.7 (6) |
O9—Sm2—C1 | 25.14 (15) | N3—C10—H11 | 124.2 |
O15—Sm2—C1 | 87.51 (16) | N4—C10—H11 | 124.2 |
C9—Sm2—C1 | 113.14 (19) | S1—O1—Sm1 | 103.9 (2) |
O8iii—Sm1—O2iv | 82.97 (18) | S1—O2—Sm1iv | 157.7 (3) |
O8iii—Sm1—O5 | 132.72 (18) | S1—O3—Sm2ii | 151.1 (3) |
O2iv—Sm1—O5 | 143.93 (18) | S1—O4—Sm1 | 95.8 (2) |
O8iii—Sm1—O2W | 74.9 (2) | S2—O5—Sm1 | 135.0 (3) |
O2iv—Sm1—O2W | 134.42 (18) | S2—O6—Sm2 | 141.8 (3) |
O5—Sm1—O2W | 71.7 (2) | S2—O8—Sm1i | 154.6 (3) |
O8iii—Sm1—O1 | 132.36 (16) | C1—O9—Sm1 | 123.4 (4) |
O2iv—Sm1—O1 | 84.65 (16) | C1—O9—Sm2 | 92.6 (4) |
O5—Sm1—O1 | 74.15 (16) | Sm1—O9—Sm2 | 141.08 (19) |
O2W—Sm1—O1 | 81.88 (18) | C1—O10—Sm3 | 141.3 (4) |
O8iii—Sm1—O1W | 149.16 (18) | C1—O10—Sm2 | 97.2 (4) |
O2iv—Sm1—O1W | 73.88 (18) | Sm3—O10—Sm2 | 112.87 (16) |
O5—Sm1—O1W | 70.95 (18) | C4—O11—Sm3 | 157.0 (5) |
O2W—Sm1—O1W | 135.9 (2) | C6—O13—Sm3 | 155.7 (5) |
O1—Sm1—O1W | 66.14 (16) | C6—O14—Co1 | 118.2 (4) |
O8iii—Sm1—N1 | 82.36 (18) | C9—O15—Sm3 | 152.2 (4) |
O2iv—Sm1—N1 | 72.20 (17) | C9—O15—Sm2 | 90.6 (4) |
O5—Sm1—N1 | 103.37 (18) | Sm3—O15—Sm2 | 111.56 (17) |
O2W—Sm1—N1 | 140.42 (19) | C9—O16—Sm2 | 95.7 (4) |
O1—Sm1—N1 | 135.86 (17) | S3—O17—Sm3 | 112.7 (3) |
O1W—Sm1—N1 | 71.45 (18) | S3—O19—Sm2iii | 142.2 (3) |
O8iii—Sm1—O9 | 73.54 (17) | S3—O20—Sm3iii | 146.5 (3) |
O2iv—Sm1—O9 | 130.86 (16) | Sm1—O1W—H1W | 112 (6) |
O5—Sm1—O9 | 68.57 (16) | Sm1—O1W—H2W | 111 (6) |
O2W—Sm1—O9 | 80.04 (17) | H1W—O1W—H2W | 104 (3) |
O1—Sm1—O9 | 142.05 (15) | Sm1—O2W—H3W | 125 (5) |
O1W—Sm1—O9 | 106.70 (16) | Sm1—O2W—H4W | 133 (5) |
N1—Sm1—O9 | 62.47 (16) | H3W—O2W—H4W | 101 (7) |
O8iii—Sm1—O4 | 78.70 (16) | Sm2—O3W—H5W | 118 (6) |
O2iv—Sm1—O4 | 72.14 (16) | Sm2—O3W—H6W | 114 (5) |
O5—Sm1—O4 | 114.36 (16) | H5W—O3W—H6W | 102 (3) |
O2W—Sm1—O4 | 64.80 (17) | Sm2—O4W—H7W | 116 (6) |
O1—Sm1—O4 | 53.73 (15) | Sm2—O4W—H8W | 123 (6) |
O1W—Sm1—O4 | 112.03 (16) | H7W—O4W—H8W | 106 (7) |
N1—Sm1—O4 | 141.24 (17) | Sm3—O5W—H9W | 94 (6) |
O9—Sm1—O4 | 139.76 (15) | Sm3—O5W—H10W | 139 (7) |
O8iii—Sm1—S1 | 105.85 (13) | H9W—O5W—H10W | 105 (8) |
O2iv—Sm1—S1 | 74.94 (12) | Sm3—O6W—H11W | 120 (5) |
O5—Sm1—S1 | 95.75 (12) | Sm3—O6W—H12W | 129 (5) |
O2W—Sm1—S1 | 73.64 (14) | H11W—O6W—H12W | 107 (3) |
O1—Sm1—S1 | 26.73 (11) | Co1—O7W—H13W | 104 (6) |
O1W—Sm1—S1 | 87.74 (12) | Co1—O7W—H14W | 116 (6) |
N1—Sm1—S1 | 144.82 (13) | H13W—O7W—H14W | 105 (3) |
O9—Sm1—S1 | 152.67 (11) |
Symmetry codes: (i) x−1, y, z; (ii) −x, −y, −z+1; (iii) x+1, y, z; (iv) −x+1, −y+1, −z+1; (v) −x, −y−1, −z+2. |
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H1···O18vi | 0.87 (6) | 2.06 (5) | 2.916 (8) | 170 (6) |
O1W—H1W···O7 | 0.82 (5) | 2.52 (8) | 3.140 (8) | 133 (7) |
O1W—H1W···O16vi | 0.82 (5) | 2.12 (6) | 2.777 (6) | 136 (8) |
N4—H2···O7vii | 0.87 (4) | 1.94 (5) | 2.803 (8) | 171 (8) |
O1W—H2W···O1viii | 0.82 (5) | 2.51 (6) | 3.247 (7) | 150 (7) |
O2W—H3W···O3W | 0.83 (5) | 2.02 (5) | 2.809 (8) | 160 (6) |
O2W—H4W···O6ii | 0.83 (4) | 2.55 (4) | 3.303 (9) | 152 (8) |
O2W—H4W···O8ii | 0.83 (4) | 2.53 (7) | 3.204 (8) | 140 (6) |
O3W—H5W···O4ix | 0.83 (4) | 1.98 (5) | 2.789 (7) | 166 (8) |
O3W—H6W···O1ii | 0.83 (5) | 1.93 (5) | 2.732 (7) | 161 (5) |
O4W—H7W···O17 | 0.81 (5) | 2.59 (6) | 3.270 (8) | 142 (7) |
O4W—H7W···O19 | 0.81 (5) | 2.20 (6) | 2.874 (7) | 141 (5) |
O4W—H8W···O6iii | 0.81 (7) | 2.47 (7) | 3.186 (8) | 149 (6) |
O5W—H10W···O7Wx | 0.82 (6) | 2.10 (6) | 2.794 (8) | 142 (6) |
O6W—H11W···O14xi | 0.81 (4) | 1.99 (5) | 2.751 (7) | 157 (5) |
O6W—H12W···O5Wxi | 0.81 (6) | 2.27 (7) | 3.053 (8) | 162 (7) |
O7W—H13W···O11x | 0.81 (5) | 2.45 (5) | 3.063 (6) | 133 (7) |
O7W—H13W···O12x | 0.81 (5) | 2.06 (6) | 2.855 (7) | 168 (7) |
O7W—H14W···O12xii | 0.81 (5) | 1.85 (5) | 2.661 (7) | 174 (7) |
C5—H5···O3iv | 0.93 | 2.52 | 3.388 (8) | 155 |
C10—H11···O17xii | 0.93 | 2.54 | 3.430 (9) | 161 |
Symmetry codes: (ii) −x, −y, −z+1; (iii) x+1, y, z; (iv) −x+1, −y+1, −z+1; (vi) x, y+1, z; (vii) x, y−1, z; (viii) −x, −y+1, −z+1; (ix) −x+1, −y, −z+1; (x) −x, −y, −z+2; (xi) −x+1, −y, −z+2; (xii) x−1, y−1, z. |
Experimental details
Crystal data | |
Chemical formula | [CoSm6(C5H2N2O4)4(SO4)6(H2O)14] |
Mr | 2406.08 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 296 |
a, b, c (Å) | 6.6395 (10), 9.5090 (14), 21.619 (3) |
α, β, γ (°) | 97.068 (2), 94.391 (2), 98.006 (2) |
V (Å3) | 1335.2 (3) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 7.17 |
Crystal size (mm) | 0.20 × 0.18 × 0.15 |
Data collection | |
Diffractometer | Bruker APEXII area-detector diffractometer |
Absorption correction | Multi-scan (SADABS; Sheldrick, 1996) |
Tmin, Tmax | 0.260, 0.341 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 6967, 4716, 3971 |
Rint | 0.024 |
(sin θ/λ)max (Å−1) | 0.599 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.031, 0.070, 1.02 |
No. of reflections | 4716 |
No. of parameters | 478 |
No. of restraints | 23 |
H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
Δρmax, Δρmin (e Å−3) | 1.00, −1.03 |
Computer programs: APEX2 (Bruker, 2004), SAINT (Bruker, 2004), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), XP in SHELXTL (Sheldrick, 2008).
D—H···A | D—H | H···A | D···A | D—H···A |
N2—H1···O18i | 0.87 (6) | 2.06 (5) | 2.916 (8) | 170 (6) |
O1W—H1W···O7 | 0.82 (5) | 2.52 (8) | 3.140 (8) | 133 (7) |
O1W—H1W···O16i | 0.82 (5) | 2.12 (6) | 2.777 (6) | 136 (8) |
N4—H2···O7ii | 0.87 (4) | 1.94 (5) | 2.803 (8) | 171 (8) |
O1W—H2W···O1iii | 0.82 (5) | 2.51 (6) | 3.247 (7) | 150 (7) |
O2W—H3W···O3W | 0.83 (5) | 2.02 (5) | 2.809 (8) | 160 (6) |
O2W—H4W···O6iv | 0.83 (4) | 2.55 (4) | 3.303 (9) | 152 (8) |
O2W—H4W···O8iv | 0.83 (4) | 2.53 (7) | 3.204 (8) | 140 (6) |
O3W—H5W···O4v | 0.83 (4) | 1.98 (5) | 2.789 (7) | 166 (8) |
O3W—H6W···O1iv | 0.83 (5) | 1.93 (5) | 2.732 (7) | 161 (5) |
O4W—H7W···O17 | 0.81 (5) | 2.59 (6) | 3.270 (8) | 142 (7) |
O4W—H7W···O19 | 0.81 (5) | 2.20 (6) | 2.874 (7) | 141 (5) |
O4W—H8W···O6vi | 0.81 (7) | 2.47 (7) | 3.186 (8) | 149 (6) |
O5W—H10W···O7Wvii | 0.82 (6) | 2.10 (6) | 2.794 (8) | 142 (6) |
O6W—H11W···O14viii | 0.81 (4) | 1.99 (5) | 2.751 (7) | 157 (5) |
O6W—H12W···O5Wviii | 0.81 (6) | 2.27 (7) | 3.053 (8) | 162 (7) |
O7W—H13W···O11vii | 0.81 (5) | 2.45 (5) | 3.063 (6) | 133 (7) |
O7W—H13W···O12vii | 0.81 (5) | 2.06 (6) | 2.855 (7) | 168 (7) |
O7W—H14W···O12ix | 0.81 (5) | 1.85 (5) | 2.661 (7) | 174 (7) |
C5—H5···O3x | 0.9300 | 2.5200 | 3.388 (8) | 155.00 |
C10—H11···O17ix | 0.9300 | 2.5400 | 3.430 (9) | 161.00 |
Symmetry codes: (i) x, y+1, z; (ii) x, y−1, z; (iii) −x, −y+1, −z+1; (iv) −x, −y, −z+1; (v) −x+1, −y, −z+1; (vi) x+1, y, z; (vii) −x, −y, −z+2; (viii) −x+1, −y, −z+2; (ix) x−1, y−1, z; (x) −x+1, −y+1, −z+1. |
Acknowledgements
The authors acknowledge South China Normal University and South China University of Technology for supporting this work.
References
Bruker (2004). APEX2 and SAINT . Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Cheng, J.-W., Zhang, J., Zheng, S.-T., Zhang, M.-B. & Yang, G.-Y. (2006). Angew. Chem. Int. Ed. 45, 73–77. Web of Science CSD CrossRef CAS Google Scholar
Kuang, D.-Z., Feng, Y.-L., Peng, Y.-L. & Deng, Y.-F. (2007). Acta Cryst. E63, m2526–m2527. Web of Science CSD CrossRef IUCr Journals Google Scholar
Sheldrick, G. M. (1996). SADABS. University of Göttingen, Germany. Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
Sun, Y.-Q. & Yang, G.-Y. (2007). Dalton Trans. pp. 3771–3781. Web of Science CSD CrossRef Google Scholar
Zhu, L.-C., Zhao, Y., Yu, S.-J. & Zhao, M.-M. (2010). Inorg. Chem. Commun. 13, 1299–1303. Web of Science CSD CrossRef CAS Google Scholar
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In the past few years, lanthanide-transition metal heterometallic complexs with bridging multifunctionnal organic ligands gained increasing interest, not only because of their impressive topological structures, but also due to their versatile applications in ion exchange, magnetism, bimetallic catalysis and as luminescent probes (Cheng et al., 2006; Kuang et al., 2007; Sun & Yang, 2007; Zhu et al., 2010). As an extension of this research, the structure of the title compound, a new heterometallic coordination polymer has been determined which is presented in this artcle.
The asymmetric unit of the title compound (Fig. 1), contains a CoII ion, three SmIII ions, two imidazole-4, 5-dicarboxylate ligands, three SO42- anions, and seven coordinated water molecules. The CoII ion lie in the inversion center and is six-coordinated with two O atoms from two coordinated water molecules, two O atoms and two N atoms from two imidazole-4, 5-dicarboxylate ligands, giving a slightly distorted octahedral geometry. The SmIII ions exhibit three types of coordination environment. One SmIII ion is eight-coordinated in a bicapped trigonal prismatic coordination geometry by four O atoms from two imidazole-4,5-dicarboxylate ligands, two O atoms from two SO42- anions and two coordinated water molecules. The other SmIII ions are nine-coordinated in a tricapped trigonal prismatic coordination geometry; one of these SmIII ions is bonded to four O atoms from two imidazole-4,5-dicarboxylate ligands, three O atoms from three SO42- anions and two water O atoms and the other SmIII ion is coordinated by one O atom and one N atom from one imidazole-4, 5-dicarboxylate ligand, five O atoms from three SO42- anions as well as two coordinated water molecules. These metal coordination units are connected by bridging imidazole-4, 5-dicarboxylate and sulfate ligands, generating a three-dimensional network (Fig. 2). The crystal structure is further stabilized by N—H···O, O—H···O, and C—H···O hydrogen-bonding interactions between water molecules, SO42- anions, and imidazole-4, 5-dicarboxylate ligands (Table 1).