metal-organic compounds
Retracted: Tetrakis(μ-2,4-difluorobenzoato)bis[(2,2′-bipyridine)(2,4-difluorobenzoato)terbium(III)]
aCollege of Food and Biological Engineering, Shandong Institute of Light Industry, Jinan 250353, People's Republic of China, and bMaize Research Institute, Shandong Academy of Agricultural Science, Jinan 250100, People's Republic of China
*Correspondence e-mail: lujianghao001@yahoo.com.cn
In the centrosymmetric dinuclear title compound, [Tb2(C7H3F2O2)6(C10H8N2)2], the TbIII ion is coordinated by an N,N′-bidentate 2,2′-bipyridine molecule, and two O,O′-bidentate 2,4-difluorobenzoate (dfb) anions. One of the latter also bonds to the second TbIII centre through one of its O atoms. The third dfb anion bonds to one Tb atom from each of its O atoms. Thus, the three dfb species have three different coordination modes. This results in an irregular TbN2O7 coordination sphere for the metal ion. The F atoms and their associated H atoms in the simple bidentate dfb anion are disordered over two sets of sites in a 0.672 (10):0.328 (10) ratio.
Related literature
For related literature on the biological applications of carboxylates as ligands, see, for example: Serre et al. (2005).
Experimental
Crystal data
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Refinement
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Data collection: APEX2 (Bruker, 2004); cell SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supporting information
10.1107/S1600536808043936/hb2812sup1.cif
contains datablocks global, I. DOI:Structure factors: contains datablock I. DOI: 10.1107/S1600536808043936/hb2812Isup2.hkl
A mixture of terbium(III) chloride (0.5 mmol), 2,4-difluorobezoic acid (1 mmol), sodium hydroxide (1 mmol), 4,4'-bipyridine (0.5 mmol), H2O (8 ml) and ethanol (8 ml) in a 25 ml Teflon-lined stainless steel autoclave was kept at 433 K for three days. Colourless blocks of (I) were obtained after cooling to room temperature with a yield of 16%. Anal. Calc. for C62H34F12Tb2N4O12: C 47.41, H 2.17, N 3.57%; Found: C 47.38, H 2.19, N 3.55%.
The H atoms were placed in calculated positions (C—H = 0.93 Å) and refined as riding with Uiso(H) = 1.2Ueq(C). The F atoms of the bidenate dfb anion are disordered over two sets of sites in a 0.672 (10):0.328 (10) ratio.
Data collection: APEX2 (Bruker, 2004); cell
SAINT-Plus (Bruker, 2001); data reduction: SAINT-Plus (Bruker, 2001); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL (Sheldrick, 2008).Fig. 1. A view of the molecular structure of (I), showing 30% probability displacement ellipsoids. Symmetry code: (i) –x +1, –y + 2, –z + 1. |
[Tb2(C7H3F2O2)6(C10H8N2)2] | Z = 1 |
Mr = 1572.77 | F(000) = 768 |
Triclinic, P1 | Dx = 1.799 Mg m−3 |
Hall symbol: -P 1 | Mo Kα radiation, λ = 0.71073 Å |
a = 11.401 (1) Å | Cell parameters from 5557 reflections |
b = 12.189 (1) Å | θ = 1.8–26.0° |
c = 12.588 (2) Å | µ = 2.52 mm−1 |
α = 103.99 (2)° | T = 293 K |
β = 102.90 (2)° | Block, colorless |
γ = 113.58 (2)° | 0.44 × 0.26 × 0.20 mm |
V = 1451.5 (3) Å3 |
Bruker APEXII CCD diffractometer | 5557 independent reflections |
Radiation source: fine-focus sealed tube | 4813 reflections with I > 2σ(I) |
Graphite monochromator | Rint = 0.021 |
ϕ and ω scans | θmax = 26.0°, θmin = 1.8° |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | h = −14→13 |
Tmin = 0.403, Tmax = 0.632 | k = −15→14 |
8233 measured reflections | l = 0→15 |
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)] = 0.034 | Hydrogen site location: inferred from neighbouring sites |
wR(F2) = 0.078 | H-atom parameters constrained |
S = 1.03 | w = 1/[σ2(Fo2) + (0.0345P)2 + 0.822P] where P = (Fo2 + 2Fc2)/3 |
5557 reflections | (Δ/σ)max = 0.001 |
434 parameters | Δρmax = 0.60 e Å−3 |
0 restraints | Δρmin = −0.57 e Å−3 |
[Tb2(C7H3F2O2)6(C10H8N2)2] | γ = 113.58 (2)° |
Mr = 1572.77 | V = 1451.5 (3) Å3 |
Triclinic, P1 | Z = 1 |
a = 11.401 (1) Å | Mo Kα radiation |
b = 12.189 (1) Å | µ = 2.52 mm−1 |
c = 12.588 (2) Å | T = 293 K |
α = 103.99 (2)° | 0.44 × 0.26 × 0.20 mm |
β = 102.90 (2)° |
Bruker APEXII CCD diffractometer | 5557 independent reflections |
Absorption correction: multi-scan (SADABS; Bruker, 2001) | 4813 reflections with I > 2σ(I) |
Tmin = 0.403, Tmax = 0.632 | Rint = 0.021 |
8233 measured reflections |
R[F2 > 2σ(F2)] = 0.034 | 0 restraints |
wR(F2) = 0.078 | H-atom parameters constrained |
S = 1.03 | Δρmax = 0.60 e Å−3 |
5557 reflections | Δρmin = −0.57 e Å−3 |
434 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 | Occ. (<1) | |
Tb1 | 0.39615 (2) | 0.804496 (17) | 0.439773 (18) | 0.03337 (8) | |
F1 | 0.8156 (4) | 1.1600 (3) | 0.2648 (3) | 0.0809 (11) | |
F2 | 0.3952 (4) | 0.7245 (4) | −0.0812 (3) | 0.1009 (13) | |
F3 | 0.7957 (4) | 0.9340 (4) | 0.8322 (3) | 0.0947 (13) | |
F4 | 1.1389 (4) | 1.1727 (5) | 0.6340 (6) | 0.136 (2) | |
F5 | −0.1318 (6) | 0.5659 (8) | 0.2091 (5) | 0.131 (3) | 0.672 (10) |
F6 | −0.0100 (8) | 0.6768 (9) | −0.1480 (6) | 0.155 (4) | 0.672 (10) |
F7 | 0.1797 (11) | 0.7301 (13) | 0.0303 (10) | 0.100 (5) | 0.328 (10) |
F8 | −0.3317 (10) | 0.5145 (17) | 0.0353 (11) | 0.126 (7) | 0.328 (10) |
O1 | 0.1421 (3) | 0.6937 (3) | 0.3366 (3) | 0.0459 (8) | |
O2 | 0.2722 (3) | 0.7141 (3) | 0.2304 (3) | 0.0497 (8) | |
O3 | 0.6259 (3) | 1.0197 (2) | 0.5936 (3) | 0.0361 (7) | |
O4 | 0.5990 (3) | 0.8317 (3) | 0.5898 (3) | 0.0492 (9) | |
O5 | 0.5614 (3) | 0.8920 (3) | 0.3552 (3) | 0.0392 (7) | |
O6 | 0.6504 (3) | 1.1034 (3) | 0.3975 (3) | 0.0449 (8) | |
N1 | 0.2901 (4) | 0.6091 (3) | 0.4973 (4) | 0.0459 (10) | |
N2 | 0.4379 (4) | 0.6128 (3) | 0.3584 (3) | 0.0431 (9) | |
C1 | 0.5204 (5) | 0.6201 (5) | 0.2990 (5) | 0.0539 (13) | |
H1 | 0.5613 | 0.6955 | 0.2850 | 0.065* | |
C2 | 0.5503 (7) | 0.5218 (6) | 0.2559 (5) | 0.0681 (17) | |
H2 | 0.6097 | 0.5311 | 0.2146 | 0.082* | |
C3 | 0.4902 (7) | 0.4132 (5) | 0.2760 (5) | 0.0704 (18) | |
H3 | 0.5076 | 0.3455 | 0.2486 | 0.085* | |
C4 | 0.4042 (7) | 0.4023 (5) | 0.3364 (5) | 0.0638 (17) | |
H4 | 0.3626 | 0.3270 | 0.3504 | 0.077* | |
C5 | 0.3780 (5) | 0.5031 (4) | 0.3773 (4) | 0.0446 (12) | |
C6 | 0.6742 (4) | 0.9489 (4) | 0.6192 (4) | 0.0345 (9) | |
C7 | 0.8260 (4) | 1.0066 (4) | 0.6802 (4) | 0.0385 (10) | |
C8 | 0.9148 (5) | 1.0685 (5) | 0.6301 (5) | 0.0592 (14) | |
H8 | 0.8820 | 1.0786 | 0.5605 | 0.071* | |
C9 | 1.0537 (6) | 1.1153 (6) | 0.6853 (7) | 0.0772 (19) | |
C10 | 1.1062 (6) | 1.1066 (6) | 0.7881 (8) | 0.086 (2) | |
H10 | 1.2005 | 1.1417 | 0.8242 | 0.103* | |
C11 | 1.0191 (6) | 1.0454 (7) | 0.8389 (6) | 0.0792 (19) | |
H11 | 1.0532 | 1.0379 | 0.9095 | 0.095* | |
C12 | 0.8806 (5) | 0.9955 (5) | 0.7837 (5) | 0.0525 (13) | |
C13 | 0.1575 (5) | 0.6867 (4) | 0.2397 (4) | 0.0385 (10) | |
C14 | 0.0384 (5) | 0.6523 (4) | 0.1333 (4) | 0.0400 (10) | |
C15 | −0.0962 (5) | 0.5956 (6) | 0.1252 (5) | 0.0591 (14) | |
H15 | −0.1166 | 0.5754 | 0.1877 | 0.071* | 0.328 (10) |
C16 | −0.2018 (6) | 0.5664 (7) | 0.0283 (6) | 0.0759 (18) | |
H16 | −0.2913 | 0.5274 | 0.0267 | 0.091* | 0.672 (10) |
C17 | −0.1771 (6) | 0.5947 (6) | −0.0640 (5) | 0.0720 (18) | |
H17 | −0.2484 | 0.5771 | −0.1298 | 0.086* | |
C18 | −0.0453 (7) | 0.6497 (6) | −0.0581 (5) | 0.0716 (17) | |
H18 | −0.0263 | 0.6684 | −0.1216 | 0.086* | 0.328 (10) |
C19 | 0.0606 (6) | 0.6780 (5) | 0.0380 (5) | 0.0569 (14) | |
H19 | 0.1495 | 0.7160 | 0.0381 | 0.068* | 0.672 (10) |
C20 | 0.6086 (4) | 0.9903 (4) | 0.3307 (4) | 0.0363 (10) | |
C21 | 0.6107 (5) | 0.9677 (4) | 0.2092 (4) | 0.0418 (11) | |
C22 | 0.7081 (6) | 1.0524 (5) | 0.1800 (5) | 0.0531 (13) | |
C23 | 0.7024 (7) | 1.0276 (6) | 0.0660 (6) | 0.0652 (16) | |
H23 | 0.7709 | 1.0859 | 0.0489 | 0.078* | |
C24 | 0.5965 (7) | 0.9176 (6) | −0.0230 (5) | 0.0681 (16) | |
H24 | 0.5903 | 0.9012 | −0.1007 | 0.082* | |
C25 | 0.5015 (6) | 0.8340 (6) | 0.0064 (5) | 0.0636 (15) | |
C26 | 0.5055 (5) | 0.8547 (5) | 0.1189 (4) | 0.0491 (12) | |
H26 | 0.4385 | 0.7939 | 0.1352 | 0.059* | |
C27 | 0.2154 (5) | 0.6091 (5) | 0.5643 (6) | 0.0599 (15) | |
H27 | 0.2191 | 0.6867 | 0.6022 | 0.072* | |
C28 | 0.1331 (6) | 0.5017 (6) | 0.5811 (6) | 0.0762 (19) | |
H28 | 0.0830 | 0.5066 | 0.6294 | 0.091* | |
C29 | 0.1267 (7) | 0.3900 (6) | 0.5266 (7) | 0.087 (2) | |
H29 | 0.0705 | 0.3154 | 0.5355 | 0.105* | |
C30 | 0.2036 (7) | 0.3854 (5) | 0.4570 (6) | 0.080 (2) | |
H30 | 0.1997 | 0.3077 | 0.4189 | 0.095* | |
C31 | 0.2873 (5) | 0.4976 (4) | 0.4440 (4) | 0.0496 (13) |
U11 | U22 | U33 | U12 | U13 | U23 | |
Tb1 | 0.03168 (12) | 0.02483 (11) | 0.04084 (14) | 0.01158 (9) | 0.00750 (9) | 0.01636 (9) |
F1 | 0.075 (2) | 0.059 (2) | 0.086 (2) | 0.0040 (17) | 0.046 (2) | 0.0247 (18) |
F2 | 0.109 (3) | 0.095 (3) | 0.055 (2) | 0.024 (2) | 0.030 (2) | 0.000 (2) |
F3 | 0.070 (2) | 0.161 (4) | 0.069 (2) | 0.053 (2) | 0.0260 (19) | 0.071 (3) |
F4 | 0.070 (3) | 0.148 (4) | 0.246 (6) | 0.052 (3) | 0.088 (3) | 0.135 (4) |
F5 | 0.054 (4) | 0.219 (8) | 0.078 (4) | 0.016 (4) | 0.019 (3) | 0.078 (5) |
F6 | 0.113 (6) | 0.211 (9) | 0.079 (5) | 0.015 (5) | 0.008 (4) | 0.089 (5) |
F7 | 0.051 (7) | 0.170 (13) | 0.094 (9) | 0.037 (7) | 0.027 (6) | 0.104 (9) |
F8 | 0.032 (6) | 0.229 (17) | 0.083 (9) | 0.030 (8) | 0.006 (5) | 0.073 (10) |
O1 | 0.0388 (18) | 0.0500 (19) | 0.0408 (19) | 0.0129 (15) | 0.0084 (14) | 0.0241 (15) |
O2 | 0.0381 (19) | 0.057 (2) | 0.0442 (19) | 0.0216 (16) | 0.0075 (15) | 0.0124 (16) |
O3 | 0.0339 (16) | 0.0284 (14) | 0.0453 (18) | 0.0156 (12) | 0.0066 (13) | 0.0184 (13) |
O4 | 0.0407 (18) | 0.0239 (15) | 0.064 (2) | 0.0096 (13) | −0.0056 (16) | 0.0193 (15) |
O5 | 0.0390 (17) | 0.0323 (16) | 0.0500 (19) | 0.0158 (13) | 0.0196 (14) | 0.0202 (14) |
O6 | 0.0522 (19) | 0.0304 (16) | 0.051 (2) | 0.0140 (14) | 0.0240 (16) | 0.0179 (15) |
N1 | 0.037 (2) | 0.035 (2) | 0.062 (3) | 0.0114 (17) | 0.0091 (19) | 0.0296 (19) |
N2 | 0.042 (2) | 0.0300 (19) | 0.051 (2) | 0.0176 (17) | 0.0046 (19) | 0.0161 (17) |
C1 | 0.052 (3) | 0.043 (3) | 0.063 (3) | 0.025 (2) | 0.017 (3) | 0.015 (2) |
C2 | 0.077 (4) | 0.068 (4) | 0.058 (4) | 0.051 (3) | 0.011 (3) | 0.006 (3) |
C3 | 0.094 (5) | 0.045 (3) | 0.061 (4) | 0.048 (3) | −0.002 (3) | 0.002 (3) |
C4 | 0.084 (4) | 0.033 (3) | 0.052 (3) | 0.030 (3) | −0.008 (3) | 0.006 (2) |
C5 | 0.052 (3) | 0.027 (2) | 0.038 (3) | 0.020 (2) | −0.011 (2) | 0.0080 (19) |
C6 | 0.033 (2) | 0.033 (2) | 0.034 (2) | 0.0145 (18) | 0.0048 (18) | 0.0158 (18) |
C7 | 0.034 (2) | 0.032 (2) | 0.048 (3) | 0.0206 (19) | 0.007 (2) | 0.013 (2) |
C8 | 0.050 (3) | 0.054 (3) | 0.084 (4) | 0.026 (3) | 0.025 (3) | 0.041 (3) |
C9 | 0.046 (3) | 0.066 (4) | 0.132 (6) | 0.026 (3) | 0.037 (4) | 0.053 (4) |
C10 | 0.036 (3) | 0.069 (4) | 0.138 (7) | 0.024 (3) | 0.009 (4) | 0.037 (4) |
C11 | 0.055 (4) | 0.099 (5) | 0.080 (4) | 0.041 (4) | 0.002 (3) | 0.040 (4) |
C12 | 0.042 (3) | 0.067 (3) | 0.050 (3) | 0.030 (3) | 0.009 (2) | 0.024 (3) |
C13 | 0.039 (3) | 0.023 (2) | 0.043 (3) | 0.0114 (18) | 0.005 (2) | 0.0113 (19) |
C14 | 0.038 (2) | 0.036 (2) | 0.035 (2) | 0.013 (2) | 0.0032 (19) | 0.0131 (19) |
C15 | 0.042 (3) | 0.078 (4) | 0.045 (3) | 0.019 (3) | 0.010 (2) | 0.024 (3) |
C16 | 0.040 (3) | 0.103 (5) | 0.059 (4) | 0.025 (3) | −0.001 (3) | 0.023 (4) |
C17 | 0.057 (4) | 0.076 (4) | 0.052 (4) | 0.027 (3) | −0.016 (3) | 0.017 (3) |
C18 | 0.080 (5) | 0.075 (4) | 0.043 (3) | 0.025 (3) | 0.009 (3) | 0.028 (3) |
C19 | 0.051 (3) | 0.053 (3) | 0.050 (3) | 0.011 (2) | 0.010 (2) | 0.025 (3) |
C20 | 0.031 (2) | 0.035 (2) | 0.048 (3) | 0.0168 (19) | 0.015 (2) | 0.020 (2) |
C21 | 0.045 (3) | 0.043 (3) | 0.055 (3) | 0.029 (2) | 0.025 (2) | 0.026 (2) |
C22 | 0.062 (3) | 0.043 (3) | 0.066 (4) | 0.025 (3) | 0.036 (3) | 0.027 (3) |
C23 | 0.092 (5) | 0.068 (4) | 0.082 (4) | 0.052 (4) | 0.063 (4) | 0.048 (4) |
C24 | 0.093 (5) | 0.079 (4) | 0.053 (4) | 0.054 (4) | 0.038 (3) | 0.026 (3) |
C25 | 0.074 (4) | 0.060 (3) | 0.055 (4) | 0.030 (3) | 0.029 (3) | 0.014 (3) |
C26 | 0.048 (3) | 0.051 (3) | 0.053 (3) | 0.022 (2) | 0.026 (2) | 0.023 (2) |
C27 | 0.051 (3) | 0.054 (3) | 0.089 (4) | 0.024 (3) | 0.028 (3) | 0.047 (3) |
C28 | 0.063 (4) | 0.076 (4) | 0.104 (5) | 0.024 (3) | 0.033 (4) | 0.068 (4) |
C29 | 0.081 (5) | 0.054 (4) | 0.103 (5) | 0.003 (3) | 0.015 (4) | 0.059 (4) |
C30 | 0.092 (5) | 0.034 (3) | 0.079 (4) | 0.010 (3) | 0.000 (4) | 0.030 (3) |
C31 | 0.052 (3) | 0.028 (2) | 0.050 (3) | 0.011 (2) | −0.004 (2) | 0.022 (2) |
Tb1—N1 | 2.565 (3) | C5—C31 | 1.463 (8) |
Tb1—N2 | 2.586 (4) | C6—C7 | 1.501 (6) |
Tb1—O6i | 2.364 (3) | C7—C8 | 1.377 (7) |
Tb1—O3i | 2.377 (3) | C7—C12 | 1.377 (7) |
Tb1—O5 | 2.379 (3) | C8—C9 | 1.382 (8) |
Tb1—O2 | 2.418 (3) | C8—H8 | 0.9300 |
Tb1—O4 | 2.481 (3) | C9—C10 | 1.347 (10) |
Tb1—O1 | 2.498 (3) | C10—C11 | 1.367 (10) |
Tb1—O3 | 2.696 (3) | C10—H10 | 0.9300 |
F1—C22 | 1.347 (6) | C11—C12 | 1.373 (8) |
F2—C25 | 1.365 (7) | C11—H11 | 0.9300 |
F3—C12 | 1.331 (6) | C13—C14 | 1.508 (6) |
F4—C9 | 1.344 (7) | C14—C19 | 1.363 (7) |
F5—C15 | 1.294 (7) | C14—C15 | 1.374 (7) |
F5—H15 | 0.3691 | C15—C16 | 1.362 (7) |
F6—C18 | 1.353 (9) | C15—H15 | 0.9300 |
F6—H18 | 0.4290 | C16—C17 | 1.346 (9) |
F7—C19 | 1.286 (11) | C16—H16 | 0.9300 |
F7—H19 | 0.3654 | C17—C18 | 1.354 (9) |
F8—C16 | 1.392 (13) | C17—H17 | 0.9300 |
F8—H16 | 0.4706 | C18—C19 | 1.362 (8) |
O1—C13 | 1.258 (6) | C18—H18 | 0.9300 |
O2—C13 | 1.254 (6) | C19—H19 | 0.9300 |
O3—C6 | 1.259 (5) | C20—C21 | 1.495 (6) |
O3—Tb1i | 2.377 (3) | C21—C22 | 1.372 (6) |
O4—C6 | 1.239 (5) | C21—C26 | 1.393 (7) |
O5—C20 | 1.248 (5) | C22—C23 | 1.375 (7) |
O6—C20 | 1.252 (5) | C23—C24 | 1.373 (9) |
O6—Tb1i | 2.364 (3) | C23—H23 | 0.9300 |
N1—C27 | 1.325 (7) | C24—C25 | 1.351 (8) |
N1—C31 | 1.347 (6) | C24—H24 | 0.9300 |
N2—C1 | 1.315 (7) | C25—C26 | 1.364 (7) |
N2—C5 | 1.345 (6) | C26—H26 | 0.9300 |
C1—C2 | 1.394 (7) | C27—C28 | 1.371 (7) |
C1—H1 | 0.9300 | C27—H27 | 0.9300 |
C2—C3 | 1.342 (9) | C28—C29 | 1.332 (10) |
C2—H2 | 0.9300 | C28—H28 | 0.9300 |
C3—C4 | 1.354 (9) | C29—C30 | 1.378 (10) |
C3—H3 | 0.9300 | C29—H29 | 0.9300 |
C4—C5 | 1.385 (7) | C30—C31 | 1.394 (7) |
C4—H4 | 0.9300 | C30—H30 | 0.9300 |
O6i—Tb1—O3i | 75.94 (10) | C10—C9—C8 | 122.7 (6) |
O6i—Tb1—O5 | 132.93 (10) | C9—C10—C11 | 119.2 (6) |
O3i—Tb1—O5 | 74.31 (10) | C9—C10—H10 | 120.4 |
O6i—Tb1—O2 | 132.91 (12) | C11—C10—H10 | 120.4 |
O3i—Tb1—O2 | 78.22 (11) | C10—C11—C12 | 118.9 (6) |
O5—Tb1—O2 | 74.15 (11) | C10—C11—H11 | 120.5 |
O6i—Tb1—O4 | 84.77 (12) | C12—C11—H11 | 120.5 |
O3i—Tb1—O4 | 123.24 (9) | F3—C12—C11 | 118.8 (5) |
O5—Tb1—O4 | 82.03 (11) | F3—C12—C7 | 118.7 (4) |
O2—Tb1—O4 | 142.07 (12) | C11—C12—C7 | 122.4 (6) |
O6i—Tb1—O1 | 84.52 (12) | O2—C13—O1 | 121.4 (4) |
O3i—Tb1—O1 | 81.13 (10) | O2—C13—C14 | 118.7 (4) |
O5—Tb1—O1 | 125.07 (10) | O1—C13—C14 | 119.8 (4) |
O2—Tb1—O1 | 52.89 (11) | O2—C13—Tb1 | 59.2 (2) |
O4—Tb1—O1 | 149.70 (10) | O1—C13—Tb1 | 62.9 (2) |
O6i—Tb1—N1 | 79.45 (12) | C14—C13—Tb1 | 167.8 (3) |
O3i—Tb1—N1 | 145.03 (12) | C19—C14—C15 | 115.9 (5) |
O5—Tb1—N1 | 139.96 (12) | C19—C14—C13 | 120.2 (4) |
O2—Tb1—N1 | 101.74 (13) | C15—C14—C13 | 123.9 (4) |
O4—Tb1—N1 | 78.13 (11) | F5—C15—C16 | 115.0 (6) |
O1—Tb1—N1 | 72.07 (11) | F5—C15—C14 | 122.3 (5) |
O6i—Tb1—N2 | 138.65 (12) | C16—C15—C14 | 122.7 (5) |
O3i—Tb1—N2 | 145.39 (12) | F5—C15—H15 | 3.3 |
O5—Tb1—N2 | 78.18 (11) | C16—C15—H15 | 118.3 |
O2—Tb1—N2 | 74.34 (12) | C14—C15—H15 | 119.0 |
O4—Tb1—N2 | 72.15 (11) | C17—C16—C15 | 120.4 (6) |
O1—Tb1—N2 | 98.32 (12) | C17—C16—F8 | 123.5 (7) |
N1—Tb1—N2 | 62.76 (14) | C15—C16—F8 | 115.9 (7) |
O6i—Tb1—O3 | 70.68 (10) | C17—C16—H16 | 120.1 |
O3i—Tb1—O3 | 73.82 (10) | C15—C16—H16 | 119.5 |
O5—Tb1—O3 | 66.47 (10) | F8—C16—H16 | 4.6 |
O2—Tb1—O3 | 136.36 (10) | C16—C17—C18 | 117.8 (5) |
O4—Tb1—O3 | 49.42 (9) | C16—C17—H17 | 121.1 |
O1—Tb1—O3 | 148.14 (10) | C18—C17—H17 | 121.1 |
N1—Tb1—O3 | 120.33 (11) | C17—C18—F6 | 122.6 (6) |
N2—Tb1—O3 | 113.49 (10) | C17—C18—C19 | 122.0 (6) |
C15—F5—H15 | 8.4 | F6—C18—C19 | 115.3 (7) |
C18—F6—H18 | 8.0 | C17—C18—H18 | 119.2 |
C19—F7—H19 | 11.1 | F6—C18—H18 | 3.7 |
C16—F8—H16 | 9.1 | C19—C18—H18 | 118.8 |
C13—O1—Tb1 | 90.5 (3) | F7—C19—C18 | 114.6 (7) |
C13—O2—Tb1 | 94.3 (3) | F7—C19—C14 | 124.2 (6) |
C6—O3—Tb1i | 163.2 (3) | C18—C19—C14 | 121.1 (5) |
C6—O3—Tb1 | 88.4 (2) | F7—C19—H19 | 4.4 |
Tb1i—O3—Tb1 | 106.18 (10) | C18—C19—H19 | 119.0 |
C6—O4—Tb1 | 99.1 (2) | C14—C19—H19 | 119.9 |
C20—O5—Tb1 | 136.0 (3) | O5—C20—O6 | 125.8 (4) |
C20—O6—Tb1i | 134.3 (3) | O5—C20—C21 | 115.8 (4) |
C27—N1—C31 | 118.3 (4) | O6—C20—C21 | 118.4 (4) |
C27—N1—Tb1 | 119.6 (3) | C22—C21—C26 | 117.6 (5) |
C31—N1—Tb1 | 121.0 (3) | C22—C21—C20 | 124.3 (4) |
C1—N2—C5 | 117.7 (4) | C26—C21—C20 | 118.1 (4) |
C1—N2—Tb1 | 121.2 (3) | F1—C22—C21 | 119.9 (5) |
C5—N2—Tb1 | 121.1 (3) | F1—C22—C23 | 118.5 (5) |
N2—C1—C2 | 124.0 (5) | C21—C22—C23 | 121.5 (5) |
N2—C1—H1 | 118.0 | C24—C23—C22 | 120.5 (5) |
C2—C1—H1 | 118.0 | C24—C23—H23 | 119.7 |
C3—C2—C1 | 117.5 (6) | C22—C23—H23 | 119.7 |
C3—C2—H2 | 121.2 | C25—C24—C23 | 117.6 (5) |
C1—C2—H2 | 121.2 | C25—C24—H24 | 121.2 |
C2—C3—C4 | 120.0 (5) | C23—C24—H24 | 121.2 |
C2—C3—H3 | 120.0 | C24—C25—C26 | 123.2 (6) |
C4—C3—H3 | 120.0 | C24—C25—F2 | 118.2 (5) |
C3—C4—C5 | 120.1 (5) | C26—C25—F2 | 118.5 (5) |
C3—C4—H4 | 120.0 | C25—C26—C21 | 119.4 (5) |
C5—C4—H4 | 120.0 | C25—C26—H26 | 120.3 |
N2—C5—C4 | 120.7 (6) | C21—C26—H26 | 120.3 |
N2—C5—C31 | 116.6 (4) | N1—C27—C28 | 124.0 (6) |
C4—C5—C31 | 122.6 (5) | N1—C27—H27 | 118.0 |
O4—C6—O3 | 120.9 (4) | C28—C27—H27 | 118.0 |
O4—C6—C7 | 119.8 (4) | C29—C28—C27 | 118.4 (7) |
O3—C6—C7 | 119.2 (4) | C29—C28—H28 | 120.8 |
O4—C6—Tb1 | 56.3 (2) | C27—C28—H28 | 120.8 |
O3—C6—Tb1 | 66.3 (2) | C28—C29—C30 | 119.8 (5) |
C7—C6—Tb1 | 162.8 (3) | C28—C29—H29 | 120.1 |
C8—C7—C12 | 118.1 (5) | C30—C29—H29 | 120.1 |
C8—C7—C6 | 119.9 (4) | C29—C30—C31 | 119.7 (6) |
C12—C7—C6 | 122.0 (4) | C29—C30—H30 | 120.2 |
C7—C8—C9 | 118.6 (5) | C31—C30—H30 | 120.2 |
C7—C8—H8 | 120.7 | N1—C31—C30 | 119.9 (6) |
C9—C8—H8 | 120.7 | N1—C31—C5 | 116.7 (4) |
F4—C9—C10 | 119.3 (6) | C30—C31—C5 | 123.4 (5) |
F4—C9—C8 | 118.0 (6) | ||
O6i—Tb1—O1—C13 | 153.0 (3) | O1—Tb1—C6—O3 | −80.4 (4) |
O3i—Tb1—O1—C13 | 76.4 (2) | N1—Tb1—C6—O3 | −142.7 (2) |
O5—Tb1—O1—C13 | 12.8 (3) | N2—Tb1—C6—O3 | 155.0 (3) |
O2—Tb1—O1—C13 | −5.5 (2) | C13—Tb1—C6—O3 | 70.9 (7) |
O4—Tb1—O1—C13 | −137.2 (3) | O6i—Tb1—C6—C7 | −178.3 (10) |
N1—Tb1—O1—C13 | −126.3 (3) | O3i—Tb1—C6—C7 | −104.4 (9) |
N2—Tb1—O1—C13 | −68.6 (3) | O5—Tb1—C6—C7 | −34.8 (9) |
O3—Tb1—O1—C13 | 114.7 (3) | O2—Tb1—C6—C7 | −22.2 (10) |
C6—Tb1—O1—C13 | 167.7 (3) | O4—Tb1—C6—C7 | 82.4 (10) |
O6i—Tb1—O2—C13 | −24.4 (3) | O1—Tb1—C6—C7 | 166.9 (8) |
O3i—Tb1—O2—C13 | −82.2 (3) | N1—Tb1—C6—C7 | 104.6 (9) |
O5—Tb1—O2—C13 | −159.0 (3) | N2—Tb1—C6—C7 | 42.3 (9) |
O4—Tb1—O2—C13 | 147.7 (2) | O3—Tb1—C6—C7 | −112.7 (10) |
O1—Tb1—O2—C13 | 5.5 (2) | C13—Tb1—C6—C7 | −41.8 (13) |
N1—Tb1—O2—C13 | 62.0 (3) | O4—C6—C7—C8 | 119.8 (5) |
N2—Tb1—O2—C13 | 119.1 (3) | O3—C6—C7—C8 | −56.7 (6) |
O3—Tb1—O2—C13 | −133.1 (2) | Tb1—C6—C7—C8 | 47.9 (11) |
C6—Tb1—O2—C13 | −171.4 (2) | O4—C6—C7—C12 | −57.6 (6) |
O6i—Tb1—O3—C6 | 108.2 (3) | O3—C6—C7—C12 | 126.0 (5) |
O3i—Tb1—O3—C6 | −171.4 (3) | Tb1—C6—C7—C12 | −129.5 (9) |
O5—Tb1—O3—C6 | −91.8 (3) | C12—C7—C8—C9 | 0.5 (8) |
O2—Tb1—O3—C6 | −119.2 (3) | C6—C7—C8—C9 | −176.9 (5) |
O4—Tb1—O3—C6 | 8.2 (2) | C7—C8—C9—F4 | 178.5 (5) |
O1—Tb1—O3—C6 | 149.0 (2) | C7—C8—C9—C10 | −2.2 (10) |
N1—Tb1—O3—C6 | 43.6 (3) | F4—C9—C10—C11 | −178.5 (6) |
N2—Tb1—O3—C6 | −27.5 (3) | C8—C9—C10—C11 | 2.2 (11) |
C13—Tb1—O3—C6 | −158.5 (3) | C9—C10—C11—C12 | −0.4 (10) |
O6i—Tb1—O3—Tb1i | −80.42 (12) | C10—C11—C12—F3 | 178.8 (6) |
O3i—Tb1—O3—Tb1i | 0.0 | C10—C11—C12—C7 | −1.2 (10) |
O5—Tb1—O3—Tb1i | 79.59 (12) | C8—C7—C12—F3 | −178.9 (5) |
O2—Tb1—O3—Tb1i | 52.25 (19) | C6—C7—C12—F3 | −1.5 (7) |
O4—Tb1—O3—Tb1i | 179.60 (19) | C8—C7—C12—C11 | 1.1 (8) |
O1—Tb1—O3—Tb1i | −39.5 (2) | C6—C7—C12—C11 | 178.6 (5) |
N1—Tb1—O3—Tb1i | −144.96 (13) | Tb1—O2—C13—O1 | −10.3 (4) |
N2—Tb1—O3—Tb1i | 143.93 (13) | Tb1—O2—C13—C14 | 166.2 (3) |
C13—Tb1—O3—Tb1i | 12.9 (3) | Tb1—O1—C13—O2 | 9.9 (4) |
C6—Tb1—O3—Tb1i | 171.4 (3) | Tb1—O1—C13—C14 | −166.5 (3) |
O6i—Tb1—O4—C6 | −77.4 (3) | O6i—Tb1—C13—O2 | 161.4 (2) |
O3i—Tb1—O4—C6 | −8.0 (3) | O3i—Tb1—C13—O2 | 91.6 (3) |
O5—Tb1—O4—C6 | 57.3 (3) | O5—Tb1—C13—O2 | 20.4 (3) |
O2—Tb1—O4—C6 | 108.4 (3) | O4—Tb1—C13—O2 | −70.9 (5) |
O1—Tb1—O4—C6 | −147.1 (3) | O1—Tb1—C13—O2 | −170.2 (4) |
N1—Tb1—O4—C6 | −157.7 (3) | N1—Tb1—C13—O2 | −120.1 (3) |
N2—Tb1—O4—C6 | 137.4 (3) | N2—Tb1—C13—O2 | −57.3 (3) |
O3—Tb1—O4—C6 | −8.4 (3) | O3—Tb1—C13—O2 | 78.8 (3) |
C13—Tb1—O4—C6 | 151.6 (4) | C6—Tb1—C13—O2 | 27.0 (7) |
O6i—Tb1—O5—C20 | −43.3 (5) | O6i—Tb1—C13—O1 | −28.4 (3) |
O3i—Tb1—O5—C20 | 9.4 (4) | O3i—Tb1—C13—O1 | −98.2 (3) |
O2—Tb1—O5—C20 | 91.3 (4) | O5—Tb1—C13—O1 | −169.4 (2) |
O4—Tb1—O5—C20 | −118.5 (4) | O2—Tb1—C13—O1 | 170.2 (4) |
O1—Tb1—O5—C20 | 76.2 (4) | O4—Tb1—C13—O1 | 99.3 (4) |
N1—Tb1—O5—C20 | −179.2 (4) | N1—Tb1—C13—O1 | 50.1 (3) |
N2—Tb1—O5—C20 | 168.2 (4) | N2—Tb1—C13—O1 | 112.8 (3) |
O3—Tb1—O5—C20 | −69.5 (4) | O3—Tb1—C13—O1 | −111.0 (3) |
C13—Tb1—O5—C20 | 82.0 (4) | C6—Tb1—C13—O1 | −162.9 (5) |
C6—Tb1—O5—C20 | −96.6 (4) | O6i—Tb1—C13—C14 | 77.8 (17) |
O6i—Tb1—N1—C27 | 18.5 (4) | O3i—Tb1—C13—C14 | 8.0 (17) |
O3i—Tb1—N1—C27 | −27.2 (5) | O5—Tb1—C13—C14 | −63.2 (17) |
O5—Tb1—N1—C27 | 167.3 (3) | O2—Tb1—C13—C14 | −83.6 (17) |
O2—Tb1—N1—C27 | −113.4 (4) | O4—Tb1—C13—C14 | −154.5 (15) |
O4—Tb1—N1—C27 | 105.4 (4) | O1—Tb1—C13—C14 | 106.2 (17) |
O1—Tb1—N1—C27 | −69.0 (4) | N1—Tb1—C13—C14 | 156.3 (17) |
N2—Tb1—N1—C27 | −178.8 (4) | N2—Tb1—C13—C14 | −140.9 (17) |
O3—Tb1—N1—C27 | 78.6 (4) | O3—Tb1—C13—C14 | −4.8 (18) |
C13—Tb1—N1—C27 | −90.2 (4) | C6—Tb1—C13—C14 | −57 (2) |
C6—Tb1—N1—C27 | 96.1 (4) | O2—C13—C14—C19 | −14.5 (6) |
O6i—Tb1—N1—C31 | −173.7 (4) | O1—C13—C14—C19 | 162.0 (4) |
O3i—Tb1—N1—C31 | 140.5 (3) | Tb1—C13—C14—C19 | 62.3 (18) |
O5—Tb1—N1—C31 | −24.9 (4) | O2—C13—C14—C15 | 166.1 (5) |
O2—Tb1—N1—C31 | 54.3 (3) | O1—C13—C14—C15 | −17.4 (7) |
O4—Tb1—N1—C31 | −86.9 (3) | Tb1—C13—C14—C15 | −117.2 (16) |
O1—Tb1—N1—C31 | 98.7 (3) | C19—C14—C15—F5 | 179.9 (7) |
N2—Tb1—N1—C31 | −11.0 (3) | C13—C14—C15—F5 | −0.6 (10) |
O3—Tb1—N1—C31 | −113.6 (3) | C19—C14—C15—C16 | 0.1 (9) |
C13—Tb1—N1—C31 | 77.5 (3) | C13—C14—C15—C16 | 179.5 (5) |
C6—Tb1—N1—C31 | −96.1 (3) | F5—C15—C16—C17 | 178.9 (7) |
O6i—Tb1—N2—C1 | −147.6 (3) | C14—C15—C16—C17 | −1.2 (10) |
O3i—Tb1—N2—C1 | 34.8 (4) | F5—C15—C16—F8 | 2.9 (13) |
O5—Tb1—N2—C1 | −3.0 (4) | C14—C15—C16—F8 | −177.2 (10) |
O2—Tb1—N2—C1 | 73.6 (4) | C15—C16—C17—C18 | 1.6 (10) |
O4—Tb1—N2—C1 | −88.3 (4) | F8—C16—C17—C18 | 177.3 (11) |
O1—Tb1—N2—C1 | 121.2 (4) | C16—C17—C18—F6 | 177.0 (8) |
N1—Tb1—N2—C1 | −173.9 (4) | C16—C17—C18—C19 | −1.0 (10) |
O3—Tb1—N2—C1 | −60.6 (4) | C17—C18—C19—F7 | −179.9 (10) |
C13—Tb1—N2—C1 | 96.6 (4) | F6—C18—C19—F7 | 1.9 (12) |
C6—Tb1—N2—C1 | −72.0 (4) | C17—C18—C19—C14 | −0.1 (10) |
O6i—Tb1—N2—C5 | 31.1 (4) | F6—C18—C19—C14 | −178.3 (7) |
O3i—Tb1—N2—C5 | −146.5 (3) | C15—C14—C19—F7 | −179.7 (10) |
O5—Tb1—N2—C5 | 175.7 (3) | C13—C14—C19—F7 | 0.9 (12) |
O2—Tb1—N2—C5 | −107.7 (3) | C15—C14—C19—C18 | 0.6 (8) |
O4—Tb1—N2—C5 | 90.3 (3) | C13—C14—C19—C18 | −178.9 (5) |
O1—Tb1—N2—C5 | −60.1 (3) | Tb1—O5—C20—O6 | 47.9 (6) |
N1—Tb1—N2—C5 | 4.8 (3) | Tb1—O5—C20—C21 | −130.2 (4) |
O3—Tb1—N2—C5 | 118.1 (3) | Tb1i—O6—C20—O5 | −24.7 (7) |
C13—Tb1—N2—C5 | −84.8 (3) | Tb1i—O6—C20—C21 | 153.4 (3) |
C6—Tb1—N2—C5 | 106.7 (3) | O5—C20—C21—C22 | −147.8 (5) |
C5—N2—C1—C2 | −0.7 (7) | O6—C20—C21—C22 | 33.9 (7) |
Tb1—N2—C1—C2 | 178.1 (4) | O5—C20—C21—C26 | 33.5 (6) |
N2—C1—C2—C3 | 0.4 (9) | O6—C20—C21—C26 | −144.8 (4) |
C1—C2—C3—C4 | 0.0 (9) | C26—C21—C22—F1 | −176.8 (5) |
C2—C3—C4—C5 | 0.0 (9) | C20—C21—C22—F1 | 4.6 (7) |
C1—N2—C5—C4 | 0.7 (7) | C26—C21—C22—C23 | 0.4 (8) |
Tb1—N2—C5—C4 | −178.1 (3) | C20—C21—C22—C23 | −178.3 (5) |
C1—N2—C5—C31 | 179.7 (4) | F1—C22—C23—C24 | 178.5 (5) |
Tb1—N2—C5—C31 | 1.0 (5) | C21—C22—C23—C24 | 1.3 (9) |
C3—C4—C5—N2 | −0.4 (7) | C22—C23—C24—C25 | −1.9 (9) |
C3—C4—C5—C31 | −179.3 (5) | C23—C24—C25—C26 | 0.8 (9) |
Tb1—O4—C6—O3 | 16.1 (5) | C23—C24—C25—F2 | 179.6 (5) |
Tb1—O4—C6—C7 | −160.3 (3) | C24—C25—C26—C21 | 0.9 (9) |
Tb1i—O3—C6—O4 | −165.0 (7) | F2—C25—C26—C21 | −178.0 (5) |
Tb1—O3—C6—O4 | −14.6 (4) | C22—C21—C26—C25 | −1.5 (7) |
Tb1i—O3—C6—C7 | 11.5 (12) | C20—C21—C26—C25 | 177.3 (5) |
Tb1—O3—C6—C7 | 161.8 (4) | C31—N1—C27—C28 | −1.3 (8) |
Tb1i—O3—C6—Tb1 | −150.4 (10) | Tb1—N1—C27—C28 | 166.8 (4) |
O6i—Tb1—C6—O4 | 99.4 (3) | N1—C27—C28—C29 | −0.4 (9) |
O3i—Tb1—C6—O4 | 173.3 (3) | C27—C28—C29—C30 | 1.1 (10) |
O5—Tb1—C6—O4 | −117.2 (3) | C28—C29—C30—C31 | −0.2 (10) |
O2—Tb1—C6—O4 | −104.6 (3) | C27—N1—C31—C30 | 2.2 (7) |
O1—Tb1—C6—O4 | 84.5 (5) | Tb1—N1—C31—C30 | −165.7 (4) |
N1—Tb1—C6—O4 | 22.3 (3) | C27—N1—C31—C5 | −175.9 (4) |
N2—Tb1—C6—O4 | −40.1 (3) | Tb1—N1—C31—C5 | 16.1 (5) |
O3—Tb1—C6—O4 | 164.9 (5) | C29—C30—C31—N1 | −1.5 (8) |
C13—Tb1—C6—O4 | −124.1 (6) | C29—C30—C31—C5 | 176.5 (5) |
O6i—Tb1—C6—O3 | −65.6 (2) | N2—C5—C31—N1 | −11.0 (6) |
O3i—Tb1—C6—O3 | 8.3 (3) | C4—C5—C31—N1 | 168.0 (4) |
O5—Tb1—C6—O3 | 77.9 (2) | N2—C5—C31—C30 | 170.9 (5) |
O2—Tb1—C6—O3 | 90.5 (3) | C4—C5—C31—C30 | −10.1 (7) |
O4—Tb1—C6—O3 | −164.9 (5) |
Symmetry code: (i) −x+1, −y+2, −z+1. |
Experimental details
Crystal data | |
Chemical formula | [Tb2(C7H3F2O2)6(C10H8N2)2] |
Mr | 1572.77 |
Crystal system, space group | Triclinic, P1 |
Temperature (K) | 293 |
a, b, c (Å) | 11.401 (1), 12.189 (1), 12.588 (2) |
α, β, γ (°) | 103.99 (2), 102.90 (2), 113.58 (2) |
V (Å3) | 1451.5 (3) |
Z | 1 |
Radiation type | Mo Kα |
µ (mm−1) | 2.52 |
Crystal size (mm) | 0.44 × 0.26 × 0.20 |
Data collection | |
Diffractometer | Bruker APEXII CCD diffractometer |
Absorption correction | Multi-scan (SADABS; Bruker, 2001) |
Tmin, Tmax | 0.403, 0.632 |
No. of measured, independent and observed [I > 2σ(I)] reflections | 8233, 5557, 4813 |
Rint | 0.021 |
(sin θ/λ)max (Å−1) | 0.617 |
Refinement | |
R[F2 > 2σ(F2)], wR(F2), S | 0.034, 0.078, 1.03 |
No. of reflections | 5557 |
No. of parameters | 434 |
H-atom treatment | H-atom parameters constrained |
Δρmax, Δρmin (e Å−3) | 0.60, −0.57 |
Computer programs: APEX2 (Bruker, 2004), SAINT-Plus (Bruker, 2001), SHELXS97 (Sheldrick, 2008), SHELXL97 (Sheldrick, 2008), SHELXTL (Sheldrick, 2008).
Tb1—N1 | 2.565 (3) | Tb1—O2 | 2.418 (3) |
Tb1—N2 | 2.586 (4) | Tb1—O4 | 2.481 (3) |
Tb1—O6i | 2.364 (3) | Tb1—O1 | 2.498 (3) |
Tb1—O3i | 2.377 (3) | Tb1—O3 | 2.696 (3) |
Tb1—O5 | 2.379 (3) |
Symmetry code: (i) −x+1, −y+2, −z+1. |
Acknowledgements
This work was supported by the Natural Science Foundation of Shandong Province (grant No. Y2007D39).
References
Bruker (2001). SADABS and SAINT-Plus. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Bruker (2004). APEX2. Bruker AXS Inc., Madison, Wisconsin, USA. Google Scholar
Serre, C., Marrot, J. & Ferey, G. (2005). Inorg. Chem. 44, 654–658. Web of Science CSD CrossRef PubMed CAS Google Scholar
Sheldrick, G. M. (2008). Acta Cryst. A64, 112–122. Web of Science CrossRef CAS IUCr Journals Google Scholar
This is an open-access article distributed under the terms of the Creative Commons Attribution (CC-BY) Licence, which permits unrestricted use, distribution, and reproduction in any medium, provided the original authors and source are cited.
In recent years, carboxylic acids have been widely used as polydentate ligands, which can coordinate to transition or rare earth ions yielding complexes with interesting biological properties (e.g. Serre et al., 2005). Herein, we report the synthesis and X-ray crystal structure analysis of the centrosymetric title compound, (I), Fig. 1.
The TbIII is chelated by two 2,4-difluorobezoate anions and one 4,4'-bipyridine molecule. Two cations are linked into dimer via three bridging carboxylate groups from three 2,4-difluorobezoic acid. As a result, the TbIII ion is nine-coordinated with seven O atoms and two N atoms (Table 1).