Literature DB >> 22259342

Penta-aqua-(5-carb-oxy-pyridine-2-carboxyl-ato-κN,O)(pyridine-2,5-dicarboxyl-ato-κN,O)cerium(III) tetra-hydrate.

Ning Ma, Tong Zhang, Guang-Rui Yang.   

Abstract

In the title compound, [Ce(C(7)H(3)NO(4))(C(7)H(4)NO(4))(H(2)O)(5)]·4H(2)O, the Ce(3+) ion is nine-coordinated by two O atoms and two N atoms from one single and from one double deprotonated pyridine-2,5-dicarboxyl-ate ligand and five water mol-ecules in a distorted monocapped square-anti-prismatic geometry. In the crystal, extensive O-H⋯O hydrogen-bonding inter-actions result in a three-dimensional supra-molecular architecture.

Entities:  

Year:  2011        PMID: 22259342      PMCID: PMC3254311          DOI: 10.1107/S1600536811052688

Source DB:  PubMed          Journal:  Acta Crystallogr Sect E Struct Rep Online        ISSN: 1600-5368


Related literature

For luminescent lanthanide complexes, see: Faulkner & Pope (2003 ▶). For carb­oxy­lic complexes of lanthanides, see: Cao et al. (2002 ▶). For a related europium structure, see: Song et al. (2005 ▶).

Experimental

Crystal data

[Ce(C7H3NO4)(C7H4NO4)(H2O)5]·4H2O M = 633.48 Monoclinic, a = 14.0652 (10) Å b = 9.6485 (7) Å c = 33.345 (2) Å β = 93.650 (1)° V = 4516.0 (6) Å3 Z = 8 Mo Kα radiation μ = 2.10 mm−1 T = 296 K 0.36 × 0.24 × 0.17 mm

Data collection

Bruker SMART APEX CCD diffractometer Absorption correction: multi-scan (SADABS; Sheldrick, 2001 ▶) T min = 0.518, T max = 0.716 11155 measured reflections 3961 independent reflections 3705 reflections with I > 2σ(I) R int = 0.019

Refinement

R[F 2 > 2σ(F 2)] = 0.021 wR(F 2) = 0.050 S = 1.07 3961 reflections 383 parameters 28 restraints H atoms treated by a mixture of independent and constrained refinement Δρmax = 0.45 e Å−3 Δρmin = −0.50 e Å−3 Data collection: SMART (Bruker, 2001 ▶); cell refinement: 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: PLATON (Spek, 2009 ▶); software used to prepare material for publication: PLATON. Crystal structure: contains datablock(s) global, I. DOI: 10.1107/S1600536811052688/ez2275sup1.cif Structure factors: contains datablock(s) I. DOI: 10.1107/S1600536811052688/ez2275Isup2.hkl Additional supplementary materials: crystallographic information; 3D view; checkCIF report
[Ce(C7H3NO4)(C7H4NO4)(H2O)5]·4H2OF(000) = 2536
Mr = 633.48Dx = 1.863 Mg m3
Monoclinic, C2/cMo Kα radiation, λ = 0.71073 Å
Hall symbol: -C 2ycCell parameters from 2168 reflections
a = 14.0652 (10) Åθ = 2.6–22.7°
b = 9.6485 (7) ŵ = 2.10 mm1
c = 33.345 (2) ÅT = 296 K
β = 93.650 (1)°Block, colorless
V = 4516.0 (6) Å30.36 × 0.24 × 0.17 mm
Z = 8
Bruker SMART APEX CCD diffractometer3961 independent reflections
Radiation source: fine-focus sealed tube3705 reflections with I > 2σ(I)
graphiteRint = 0.019
phi and ω scansθmax = 25.0°, θmin = 2.5°
Absorption correction: multi-scan (SADABS; Sheldrick, 2001)h = −16→12
Tmin = 0.518, Tmax = 0.716k = −11→11
11155 measured reflectionsl = −38→39
Refinement on F2Primary atom site location: structure-invariant direct methods
Least-squares matrix: fullSecondary atom site location: difference Fourier map
R[F2 > 2σ(F2)] = 0.021Hydrogen site location: inferred from neighbouring sites
wR(F2) = 0.050H atoms treated by a mixture of independent and constrained refinement
S = 1.07w = 1/[σ2(Fo2) + (0.0224P)2 + 6.9052P] where P = (Fo2 + 2Fc2)/3
3961 reflections(Δ/σ)max = 0.002
383 parametersΔρmax = 0.45 e Å3
28 restraintsΔρmin = −0.50 e Å3
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.
xyzUiso*/Ueq
Ce10.894634 (10)−0.318396 (14)0.381434 (4)0.01818 (6)
O10.97858 (13)−0.54167 (19)0.38596 (5)0.0277 (4)
O21.07372 (15)−0.70191 (18)0.41446 (6)0.0304 (4)
O31.10159 (16)−0.0673 (2)0.53150 (6)0.0372 (5)
O41.17536 (16)−0.2284 (2)0.56975 (6)0.0370 (5)
O50.88653 (14)−0.15016 (18)0.32391 (5)0.0285 (4)
O60.87079 (16)−0.08997 (19)0.25957 (5)0.0357 (5)
O70.88037 (18)−0.8380 (2)0.27999 (6)0.0374 (5)
O80.85018 (17)−0.79869 (19)0.21507 (6)0.0385 (5)
N11.02240 (15)−0.3588 (2)0.44467 (6)0.0211 (5)
N20.87500 (15)−0.4203 (2)0.30610 (6)0.0212 (5)
C11.04597 (19)−0.2665 (3)0.47348 (8)0.0235 (6)
H1A1.0159−0.18050.47240.028*
C21.11345 (19)−0.2927 (3)0.50507 (8)0.0229 (6)
C31.1603 (2)−0.4173 (3)0.50519 (8)0.0295 (6)
H3A1.2068−0.43750.52540.035*
C41.1381 (2)−0.5126 (3)0.47515 (8)0.0300 (6)
H4A1.1702−0.59680.47460.036*
C51.06761 (18)−0.4811 (3)0.44591 (7)0.0202 (5)
C61.1322 (2)−0.1883 (3)0.53826 (8)0.0253 (6)
C71.03803 (18)−0.5827 (3)0.41309 (7)0.0219 (6)
C80.87469 (19)−0.3296 (3)0.27554 (8)0.0209 (5)
C90.8724 (2)−0.3706 (3)0.23619 (8)0.0307 (7)
H9A0.8722−0.30520.21570.037*
C100.8705 (2)−0.5100 (3)0.22733 (8)0.0316 (7)
H10A0.8691−0.53990.20080.038*
C110.87054 (19)−0.6052 (3)0.25841 (8)0.0231 (6)
C120.87281 (18)−0.5545 (3)0.29736 (7)0.0228 (6)
H12A0.8728−0.61770.31840.027*
C130.87783 (19)−0.1775 (3)0.28743 (8)0.0222 (6)
C140.86649 (19)−0.7566 (3)0.24921 (8)0.0237 (6)
O1W0.92616 (16)−0.0802 (2)0.40398 (6)0.0348 (5)
H1WA0.939 (2)−0.024 (2)0.3864 (6)0.039 (10)*
H1WB0.911 (2)−0.037 (3)0.4241 (6)0.049 (10)*
O2W0.81108 (15)−0.2775 (2)0.44579 (6)0.0351 (5)
H2WA0.7607 (14)−0.313 (3)0.4527 (9)0.048 (11)*
H2WB0.837 (2)−0.235 (4)0.4650 (8)0.074 (14)*
O3W0.78056 (16)−0.5204 (2)0.38981 (7)0.0369 (5)
H3WA0.7345 (15)−0.528 (3)0.3730 (7)0.041 (10)*
H3WB0.796 (2)−0.5992 (18)0.3977 (10)0.060 (12)*
O4W1.05648 (15)−0.2898 (2)0.35667 (7)0.0334 (5)
H4WA1.076 (2)−0.2140 (18)0.3486 (10)0.042 (10)*
H4WB1.1030 (15)−0.339 (3)0.3637 (11)0.052 (11)*
O5W0.72275 (14)−0.2396 (2)0.36277 (6)0.0329 (5)
H5WA0.6985 (19)−0.254 (4)0.3399 (4)0.044 (10)*
H5WB0.6823 (18)−0.240 (4)0.3798 (7)0.056 (12)*
O6W0.64591 (16)−0.3678 (3)0.47916 (7)0.0428 (5)
H6WA0.611 (2)−0.333 (3)0.4610 (9)0.065 (13)*
H6WB0.626 (3)−0.444 (2)0.4860 (13)0.099 (18)*
O7W0.62864 (17)−0.5498 (2)0.33125 (8)0.0420 (5)
H7WA0.5957 (19)−0.486 (2)0.3394 (8)0.034 (10)*
H7WB0.639 (3)−0.539 (4)0.3073 (5)0.104 (19)*
O8W0.99039 (18)0.1264 (2)0.35587 (7)0.0412 (5)
H8WA1.001 (3)0.192 (2)0.3712 (9)0.061 (13)*
H8WB0.948 (2)0.143 (3)0.3385 (8)0.060 (13)*
O9W1.22355 (19)−0.4211 (3)0.37170 (9)0.0614 (8)
H9WA1.253 (2)−0.387 (3)0.3916 (7)0.057 (12)*
H9WB1.242 (3)−0.5001 (19)0.3673 (11)0.076 (15)*
H70.872 (3)−0.9185 (19)0.2726 (13)0.092 (16)*
U11U22U33U12U13U23
Ce10.02396 (9)0.01492 (9)0.01536 (9)0.00190 (6)−0.00097 (6)−0.00118 (6)
O10.0359 (11)0.0211 (9)0.0247 (10)0.0035 (8)−0.0088 (8)−0.0039 (8)
O20.0415 (12)0.0176 (10)0.0313 (11)0.0075 (8)−0.0046 (9)−0.0043 (8)
O30.0661 (15)0.0216 (11)0.0231 (10)0.0080 (10)−0.0039 (10)−0.0027 (8)
O40.0574 (14)0.0276 (11)0.0237 (11)0.0007 (10)−0.0157 (10)−0.0027 (9)
O50.0482 (12)0.0171 (9)0.0197 (10)−0.0011 (8)−0.0015 (9)−0.0011 (8)
O60.0706 (15)0.0152 (9)0.0207 (10)−0.0017 (9)−0.0025 (10)0.0026 (8)
O70.0731 (16)0.0152 (10)0.0222 (11)−0.0016 (10)−0.0101 (10)−0.0005 (9)
O80.0713 (16)0.0210 (11)0.0220 (11)0.0018 (10)−0.0055 (10)−0.0049 (8)
N10.0262 (12)0.0199 (11)0.0167 (11)0.0053 (9)−0.0028 (9)−0.0024 (9)
N20.0299 (12)0.0148 (11)0.0186 (11)0.0009 (9)−0.0013 (9)−0.0001 (9)
C10.0297 (15)0.0191 (13)0.0212 (13)0.0062 (11)−0.0021 (11)−0.0022 (11)
C20.0283 (14)0.0203 (13)0.0202 (13)−0.0014 (11)0.0015 (11)−0.0005 (11)
C30.0358 (16)0.0270 (15)0.0242 (14)0.0074 (12)−0.0102 (12)−0.0016 (12)
C40.0383 (16)0.0230 (15)0.0276 (15)0.0116 (12)−0.0059 (12)−0.0025 (12)
C50.0251 (13)0.0184 (13)0.0171 (13)0.0015 (10)0.0011 (10)0.0012 (10)
C60.0333 (15)0.0220 (14)0.0205 (14)−0.0038 (12)0.0018 (12)−0.0008 (11)
C70.0264 (14)0.0200 (14)0.0194 (13)0.0008 (11)0.0027 (11)0.0010 (11)
C80.0256 (14)0.0166 (13)0.0205 (13)0.0003 (10)0.0002 (11)0.0011 (10)
C90.0567 (19)0.0186 (14)0.0170 (14)−0.0001 (13)0.0035 (13)0.0031 (11)
C100.0559 (19)0.0238 (15)0.0150 (13)−0.0010 (13)0.0005 (13)−0.0034 (11)
C110.0299 (14)0.0178 (13)0.0215 (13)0.0015 (11)−0.0003 (11)−0.0020 (11)
C120.0338 (15)0.0164 (13)0.0179 (13)0.0007 (11)−0.0006 (11)0.0029 (10)
C130.0273 (14)0.0163 (13)0.0227 (14)0.0012 (10)0.0001 (11)0.0001 (11)
C140.0291 (14)0.0213 (14)0.0203 (14)0.0008 (11)−0.0022 (11)−0.0008 (11)
O1W0.0619 (14)0.0211 (10)0.0218 (11)−0.0011 (10)0.0059 (10)−0.0045 (9)
O2W0.0323 (12)0.0480 (14)0.0254 (11)−0.0050 (10)0.0057 (9)−0.0072 (10)
O3W0.0375 (13)0.0286 (12)0.0431 (13)−0.0053 (10)−0.0086 (10)0.0091 (10)
O4W0.0310 (12)0.0286 (12)0.0412 (12)0.0020 (10)0.0078 (10)0.0096 (10)
O5W0.0303 (11)0.0440 (13)0.0238 (11)0.0048 (10)−0.0025 (9)−0.0030 (10)
O6W0.0406 (13)0.0395 (14)0.0476 (15)0.0021 (11)−0.0033 (11)0.0162 (12)
O7W0.0461 (14)0.0355 (13)0.0439 (14)−0.0044 (11)−0.0002 (11)0.0143 (11)
O8W0.0617 (16)0.0291 (12)0.0316 (12)−0.0064 (11)−0.0068 (11)−0.0066 (10)
O9W0.0550 (16)0.0467 (16)0.078 (2)0.0185 (13)−0.0337 (14)−0.0271 (15)
Ce1—O1W2.4493 (19)C4—H4A0.9300
Ce1—O12.4566 (18)C5—C71.508 (4)
Ce1—O4W2.486 (2)C8—C91.369 (4)
Ce1—O52.5098 (18)C8—C131.520 (3)
Ce1—O2W2.542 (2)C9—C101.377 (4)
Ce1—O3W2.551 (2)C9—H9A0.9300
Ce1—O5W2.573 (2)C10—C111.384 (4)
Ce1—N22.695 (2)C10—H10A0.9300
Ce1—N12.710 (2)C11—C121.386 (4)
O1—C71.256 (3)C11—C141.493 (4)
O2—C71.254 (3)C12—H12A0.9300
O3—C61.259 (3)O1W—H1WA0.828 (10)
O4—C61.241 (3)O1W—H1WB0.830 (10)
O5—C131.243 (3)O2W—H2WA0.832 (10)
O6—C131.255 (3)O2W—H2WB0.829 (10)
O7—C141.297 (3)O3W—H3WA0.833 (10)
O7—H70.820 (10)O3W—H3WB0.831 (10)
O8—C141.217 (3)O4W—H4WA0.830 (10)
N1—C11.337 (3)O4W—H4WB0.828 (10)
N1—C51.340 (3)O5W—H5WA0.828 (10)
N2—C121.327 (3)O5W—H5WB0.829 (10)
N2—C81.343 (3)O6W—H6WA0.826 (10)
C1—C21.395 (4)O6W—H6WB0.827 (10)
C1—H1A0.9300O7W—H7WA0.825 (10)
C2—C31.370 (4)O7W—H7WB0.826 (10)
C2—C61.508 (4)O8W—H8WA0.824 (10)
C3—C41.381 (4)O8W—H8WB0.825 (10)
C3—H3A0.9300O9W—H9WA0.825 (10)
C4—C51.380 (4)O9W—H9WB0.821 (10)
O1W—Ce1—O1136.63 (7)C4—C3—H3A120.1
O1W—Ce1—O4W81.14 (7)C5—C4—C3119.0 (2)
O1—Ce1—O4W70.80 (7)C5—C4—H4A120.5
O1W—Ce1—O568.06 (6)C3—C4—H4A120.5
O1—Ce1—O5127.76 (6)N1—C5—C4122.3 (2)
O4W—Ce1—O570.87 (7)N1—C5—C7116.2 (2)
O1W—Ce1—O2W71.32 (7)C4—C5—C7121.5 (2)
O1—Ce1—O2W109.29 (7)O4—C6—O3125.8 (3)
O4W—Ce1—O2W138.20 (7)O4—C6—C2117.7 (2)
O5—Ce1—O2W122.95 (7)O3—C6—C2116.5 (2)
O1W—Ce1—O3W141.81 (7)O2—C7—O1124.2 (2)
O1—Ce1—O3W68.07 (7)O2—C7—C5118.6 (2)
O4W—Ce1—O3W135.80 (7)O1—C7—C5117.2 (2)
O5—Ce1—O3W125.42 (7)N2—C8—C9122.5 (2)
O2W—Ce1—O3W72.45 (7)N2—C8—C13115.6 (2)
O1W—Ce1—O5W86.90 (7)C9—C8—C13121.8 (2)
O1—Ce1—O5W135.61 (7)C8—C9—C10119.1 (2)
O4W—Ce1—O5W138.86 (7)C8—C9—H9A120.4
O5—Ce1—O5W68.15 (7)C10—C9—H9A120.4
O2W—Ce1—O5W71.37 (7)C9—C10—C11119.2 (2)
O3W—Ce1—O5W70.39 (7)C9—C10—H10A120.4
O1W—Ce1—N2129.35 (6)C11—C10—H10A120.4
O1—Ce1—N275.98 (6)C10—C11—C12117.8 (2)
O4W—Ce1—N276.86 (7)C10—C11—C14119.8 (2)
O5—Ce1—N261.75 (6)C12—C11—C14122.4 (2)
O2W—Ce1—N2144.87 (7)N2—C12—C11123.3 (2)
O3W—Ce1—N278.20 (7)N2—C12—H12A118.4
O5W—Ce1—N280.99 (6)C11—C12—H12A118.4
O1W—Ce1—N178.35 (7)O5—C13—O6125.5 (2)
O1—Ce1—N162.21 (6)O5—C13—C8117.3 (2)
O4W—Ce1—N172.46 (7)O6—C13—C8117.2 (2)
O5—Ce1—N1133.10 (7)O8—C14—O7123.3 (2)
O2W—Ce1—N171.63 (7)O8—C14—C11121.4 (2)
O3W—Ce1—N1101.26 (7)O7—C14—C11115.3 (2)
O5W—Ce1—N1142.85 (6)Ce1—O1W—H1WA116 (2)
N2—Ce1—N1134.12 (6)Ce1—O1W—H1WB132 (2)
C7—O1—Ce1128.03 (16)H1WA—O1W—H1WB108 (2)
C13—O5—Ce1127.41 (16)Ce1—O2W—H2WA128 (2)
C14—O7—H7109 (3)Ce1—O2W—H2WB122 (2)
C1—N1—C5118.0 (2)H2WA—O2W—H2WB109 (2)
C1—N1—Ce1125.81 (17)Ce1—O3W—H3WA117 (2)
C5—N1—Ce1116.15 (16)Ce1—O3W—H3WB125 (2)
C12—N2—C8118.1 (2)H3WA—O3W—H3WB109 (2)
C12—N2—Ce1124.06 (16)Ce1—O4W—H4WA122 (2)
C8—N2—Ce1117.68 (16)Ce1—O4W—H4WB124 (2)
N1—C1—C2123.2 (2)H4WA—O4W—H4WB109 (2)
N1—C1—H1A118.4Ce1—O5W—H5WA120 (2)
C2—C1—H1A118.4Ce1—O5W—H5WB121 (2)
C3—C2—C1117.7 (2)H5WA—O5W—H5WB112 (2)
C3—C2—C6121.5 (2)H6WA—O6W—H6WB112 (2)
C1—C2—C6120.8 (2)H7WA—O7W—H7WB111 (2)
C2—C3—C4119.7 (3)H8WA—O8W—H8WB112 (2)
C2—C3—H3A120.1H9WA—O9W—H9WB111 (2)
D—H···AD—HH···AD···AD—H···A
O1W—H1WA···O8W0.83 (1)1.94 (1)2.747 (3)165 (3)
O1W—H1WB···O3i0.83 (1)1.81 (1)2.630 (3)170 (3)
O2W—H2WA···O6W0.83 (1)1.96 (1)2.779 (3)167 (3)
O2W—H2WB···O6Wii0.83 (1)2.11 (2)2.898 (3)159 (3)
O3W—H3WA···O7W0.83 (1)1.98 (1)2.816 (3)177 (3)
O3W—H3WB···O4iii0.83 (1)2.01 (1)2.823 (3)165 (4)
O4W—H4WA···O7Wiv0.83 (1)1.86 (1)2.687 (3)175 (3)
O4W—H4WB···O9W0.83 (1)1.88 (1)2.689 (3)166 (3)
O5W—H5WA···O8v0.83 (1)1.96 (1)2.789 (3)175 (3)
O5W—H5WB···O2vi0.83 (1)2.01 (1)2.821 (3)167 (4)
O6W—H6WA···O2vi0.83 (1)2.04 (2)2.823 (3)157 (3)
O6W—H6WB···O3vii0.83 (1)1.97 (3)2.698 (3)146 (4)
O7W—H7WA···O8Wvii0.83 (1)1.94 (1)2.747 (4)164 (3)
O7W—H7WB···O6viii0.83 (1)2.28 (2)3.054 (3)157 (5)
O7W—H7WB···O8v0.83 (1)2.45 (4)2.898 (3)115 (3)
O8W—H8WA···O2ix0.82 (1)2.00 (2)2.765 (3)155 (3)
O8W—H8WA···O1ix0.82 (1)2.64 (2)3.364 (3)148 (3)
O8W—H8WB···O7ix0.83 (1)2.12 (2)2.901 (3)158 (4)
O9W—H9WA···O4x0.83 (1)1.94 (1)2.750 (3)167 (4)
O9W—H9WB···O5Wxi0.82 (1)2.33 (2)3.087 (4)154 (4)
O7—H7···O6xii0.82 (1)1.71 (1)2.526 (3)173 (5)
Table 1

Hydrogen-bond geometry (Å, °)

D—H⋯AD—HH⋯ADAD—H⋯A
O1W—H1WA⋯O8W0.83 (1)1.94 (1)2.747 (3)165 (3)
O1W—H1WB⋯O3i0.83 (1)1.81 (1)2.630 (3)170 (3)
O2W—H2WA⋯O6W0.83 (1)1.96 (1)2.779 (3)167 (3)
O2W—H2WB⋯O6Wii0.83 (1)2.11 (2)2.898 (3)159 (3)
O3W—H3WA⋯O7W0.83 (1)1.98 (1)2.816 (3)177 (3)
O3W—H3WB⋯O4iii0.83 (1)2.01 (1)2.823 (3)165 (4)
O4W—H4WA⋯O7Wiv0.83 (1)1.86 (1)2.687 (3)175 (3)
O4W—H4WB⋯O9W0.83 (1)1.88 (1)2.689 (3)166 (3)
O5W—H5WA⋯O8v0.83 (1)1.96 (1)2.789 (3)175 (3)
O5W—H5WB⋯O2vi0.83 (1)2.01 (1)2.821 (3)167 (4)
O6W—H6WA⋯O2vi0.83 (1)2.04 (2)2.823 (3)157 (3)
O6W—H6WB⋯O3vii0.83 (1)1.97 (3)2.698 (3)146 (4)
O7W—H7WA⋯O8Wvii0.83 (1)1.94 (1)2.747 (4)164 (3)
O7W—H7WB⋯O6viii0.83 (1)2.28 (2)3.054 (3)157 (5)
O7W—H7WB⋯O8v0.83 (1)2.45 (4)2.898 (3)115 (3)
O8W—H8WA⋯O2ix0.82 (1)2.00 (2)2.765 (3)155 (3)
O8W—H8WA⋯O1ix0.82 (1)2.64 (2)3.364 (3)148 (3)
O8W—H8WB⋯O7ix0.83 (1)2.12 (2)2.901 (3)158 (4)
O9W—H9WA⋯O4x0.83 (1)1.94 (1)2.750 (3)167 (4)
O9W—H9WB⋯O5Wxi0.82 (1)2.33 (2)3.087 (4)154 (4)
O7—H7⋯O6xii0.82 (1)1.71 (1)2.526 (3)173 (5)

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) ; (vi) ; (vii) ; (viii) ; (ix) ; (x) ; (xi) ; (xii) .

  4 in total

1.  Syntheses and characterizations of three-dimensional channel-like polymeric lanthanide complexes constructed by 1,2,4,5-benzenetetracarboxylic acid.

Authors:  Rong Cao; Daofeng Sun; Yucang Liang; Maochun Hong; Kazuyuki Tatsumi; Qian Shi
Journal:  Inorg Chem       Date:  2002-04-22       Impact factor: 5.165

2.  A short history of SHELX.

Authors:  George M Sheldrick
Journal:  Acta Crystallogr A       Date:  2007-12-21       Impact factor: 2.290

3.  Lanthanide-sensitized lanthanide luminescence: terbium-sensitized ytterbium luminescence in a trinuclear complex.

Authors:  Stephen Faulkner; Simon J A Pope
Journal:  J Am Chem Soc       Date:  2003-09-03       Impact factor: 15.419

4.  Structure validation in chemical crystallography.

Authors:  Anthony L Spek
Journal:  Acta Crystallogr D Biol Crystallogr       Date:  2009-01-20
  4 in total

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