Tetrakis[μ-3-(3-pyridyl)acrylato-κ2 O:O′]bis{(1,10-phenanthroline-κ2 N,N′)[3-(3-pyridyl)acrylato-κ2 O,O′]europium(III)} pentahydrate

Chong-Bo Liu; Hui-Liang Wen; Fang Deng; Jun-Hui Zuo

doi:10.1107/S1600536807066263

. 2007 Dec 18;64(Pt 1):m201. doi: 10.1107/S1600536807066263

Tetrakis[μ-3-(3-pyridyl)acrylato-κ² O:O′]bis{(1,10-phenanthroline-κ² N,N′)[3-(3-pyridyl)acrylato-κ² O,O′]europium(III)} pentahydrate

Chong-Bo Liu ^a, Hui-Liang Wen ^b,^*, Fang Deng ^a, Jun-Hui Zuo ^b

PMCID: PMC2915131 PMID: 21200549

Abstract

The europium^III ion in the title compound, [Eu₂(C₈H₆NO₂)₆(C₁₂H₈N₂)₂]·5H₂O, is coordinated by seven carboxylate O atoms and two N atoms from one phenanthroline molecule. The carboxylate groups of 3-(3-pyridyl)acrylate link pairs of europium(III) ions, forming centrosymmetric dinuclear units, which further assemble into a sheet parallel to the (001) plane through hydrogen-bonding interactions involving the uncoordinated water molecules. One water molecule is disordered.

Related literature

For related literature, see: Gunning & Cahill (2005 ▶); Liu et al. (2006 ▶); Ye et al. (2005 ▶).

Experimental

Crystal data

[Eu₂(C₈H₆NO₂)₆(C₁₂H₈N₂)₂]·5H₂O
M _r = 1643.24
Monoclinic,
a = 25.434 (2) Å
b = 12.320 (10) Å
c = 22.595 (19) Å
β = 100.330 (10)°
V = 6965.4 (10) Å³
Z = 4
Mo Kα radiation
μ = 1.86 mm⁻¹
T = 293 (2) K
0.32 × 0.27 × 0.13 mm

Data collection

Bruker SMART CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Sheldrick, 1996 ▶) T _min = 0.585, T _max = 0.791
25928 measured reflections
6480 independent reflections
5721 reflections with I > 2σ(I)
R _int = 0.022

Refinement

R[F ² > 2σ(F ²)] = 0.019
wR(F ²) = 0.044
S = 1.03
6480 reflections
460 parameters
H-atom parameters constrained
Δρ_max = 0.34 e Å⁻³
Δρ_min = −0.25 e Å⁻³

Data collection: SMART (Bruker, 1998 ▶); cell refinement: SAINT (Bruker, 1998 ▶); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 1997 ▶); program(s) used to refine structure: SHELXL97 (Sheldrick, 1997 ▶); molecular graphics: ORTEPIII (Burnett & Johnson, 1996 ▶)and ORTEP-3 for Windows (Farrugia, 1997 ▶); software used to prepare material for publication: SHELXL97.

Supplementary Material

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536807066263/dn2276sup1.cif

e-64-0m201-sup1.cif^{(27.5KB, cif)}

Structure factors: contains datablocks I. DOI: 10.1107/S1600536807066263/dn2276Isup2.hkl

e-64-0m201-Isup2.hkl^{(317.2KB, hkl)}

Additional supplementary materials: crystallographic information; 3D view; checkCIF report

Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H11W⋯O6	0.85	1.94	2.775 (3)	171
O1W—H12W⋯N2ⁱ	0.85	2.02	2.856 (3)	167
O2W—H21W⋯O1Wⁱⁱ	0.82	2.48	2.851 (4)	109
O3W—H31W⋯O2Wⁱⁱⁱ	0.82	2.20	2.655 (7)	116

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Symmetry codes: (i) Inline graphic ; (ii) ; (iii) .

Acknowledgments

This work is supported by the National Natural Science Foundation of China (20662007) and Nanchang University of Aeronautics (EA20072195).

supplementary crystallographic information

Comment

Recently, assembly of high-dimensional supramolecular coordination polymers have attracted considerable attention by exploiting coordination bonds, hydrogen bondings, and π-π stacks [Ye et al., 2005], not only because of their intriguing sructural diversity, but also for their potential application as smart opotoelectronic, magnetic, and porous materials. 1,10-phenanthroline has been widely used to construct stable supramolecular structures via C—H···O or C—H···N hydrogen bonds and π-π stackings, and 3-pyridylacrylic acid (HTPA) is a potential multidentate ligand, (Gunning et al., 2005; Liu et al., 2006). Here, we report the synthesis and structure of a europium supramolecular complex with 3-(3-pyridyl)acrylato and 1,10-phenanthroline, [Eu₂ (C₈H₆NO₂)₆ (C₁₂H₈N₂)]₂.(H₂O)₅ (I).

Each Eu^III centre is coordinated by seven carboxylate oxygen atoms and two nitrogen atoms from one phenanthroline molecule; the carboxylate groups of 3-(3-pyridyl)acrylato adopt bridging bidentate, chelating and bridging-chlelating tridentate modes respectively (Fig. 1). the dihedral angles between them are 59.229 (73), 84.724 (65) and 72.190 (56) ° respectively. The carboxylate groups of 3-(3-pyridyl)acrylato link pairs of europium(III) ions to form dinuclear units, which further build up a sheet parallel to the (0 0 1) plane through hydrogen bondings involving the uncoordinated water molecules (Table 1).

Experimental

A mixture of EuCl₃.6H₂O (0.1 mmol), 3-pyridylacrylic acid (0.1 mmol), 1,10-phenanthroline (0.1 mmol), H₂O (10 ml), and 0.65 M NaOH aqueous solution (0.1 mmol) was sealed in a 25 ml Teflon-lined stainless reactor and heated at 393 K for 72 h under autogenous pressure, then cooled to room temperature, when a few colourless crystals were obtained. Analysis: found C 52.33, H 3.96, N 8.73%; C₇₂H₆₂Eu₂N₁₀O₁₇ requires C 52.01, H 3.85, N 8.43%.