Tetra-μ-acetato-κ4O:O′;κ3O,O′:O′;κ3O:O,O′-bis­[(acetato-κ2O,O′)(1,10-phenanthroline-κ2N,N′)europium(III)]

Liu, W.-J.; Li, Z.-Y.; Wei, Z.-Q.; Yue, S.-T.

doi:10.1107/S1600536810015680

Volume 66
Part 6
Page m606
June 2010

Received 26 April 2010
Accepted 28 April 2010
Online 8 May 2010

Key indicators
Single-crystal X-ray study
T = 298 K
Mean (C-C) = 0.008 Å
R = 0.030
wR = 0.062
Data-to-parameter ratio = 14.1
Details

Tetra--acetato-⁴O:O';³O,O':O';³O:O,O'-bis[(acetato-²O,O')(1,10-phenanthroline-²N,N')europium(III)]

Wen-Jing Liu,^a Zhao-Yang Li,^a Zhi-Qiang Wei ^a and Shan-Tang Yue ^a ^*

^aSchool of Chemistry and Environment, South China Normal University, Guangzhou 510006, People's Republic of China
Correspondence e-mail: yuesht@scnu.edu.cn

In the title centrosymmetric dinuclear Eu^III complex, [Eu₂(CH₃COO)₆(C₁₂H₈N₂)₂], each Eu^III cation is coordinated by seven O atoms from five acetate anions and two N atoms from one phenanthroline ligand in a distorted tricapped trigonal-prismatic geometry. Four acetate anions bridge two Eu^III cations to form the dinuclear complex, with an EuEu distance of 3.9409 (8) Å. Weak intermolecular C-HO hydrogen bonding is present in the crystal structure.

Related literature

For related lanthanide complexes with 1,10-phenanthroline and acetate ligands, see: Hu et al. (2006); Panagiotopoulos et al. (1995).

Experimental

Crystal data

[Eu₂(C₂H₃O₂)₆(C₁₂H₈N₂)₂]
M_r = 1018.61
Triclinic, $[P \overline 1]$
a = 8.7671 (19) Å
b = 8.9265 (19) Å
c = 12.992 (3) Å
= 103.631 (2)°
= 109.254 (2)°
= 98.300 (3)°
V = 905.1 (3) Å³
Z = 1
Mo K radiation
= 3.50 mm^-1
T = 298 K
0.20 × 0.19 × 0.18 mm

Data collection

Bruker SMART CCD diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 2001) T_min = 0.541, T_max = 0.571
5010 measured reflections
3474 independent reflections
3062 reflections with I > 2(I)
R_int = 0.021

Refinement

R[F² > 2(F²)] = 0.030
wR(F²) = 0.062
S = 1.05
3474 reflections
247 parameters
H-atom parameters constrained
_max = 0.80 e Å^-3
_min = -0.64 e Å^-3

Table 1
Hydrogen-bond geometry (Å, °)

D-HA	D-H	HA	DA	D-HA
C2-H2O2ⁱ	0.93	2.57	3.287 (6)	135
C12-H8O6ⁱⁱ	0.93	2.44	3.078 (6)	126
C16-H10CO1ⁱⁱⁱ	0.96	2.45	3.390 (6)	165
Symmetry codes: (i) x+1, y, z; (ii) -x+1, -y+2, -z+1; (iii) x, y+1, z.

Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXTL (Sheldrick, 2008); program(s) used to refine structure: SHELXTL; molecular graphics: SHELXTL; software used to prepare material for publication: SHELXTL.

Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: XU2753 ).

Acknowledgements

This work was supported financially by Guangdong Provincial Science and Technology Bureau (grant No. 2008B010600009) and the NSFC (grant Nos. 20971047 and U0734005).

References

Bruker (2001). SMART, SAINT and SADABS. Bruker AXS Inc., Madison, Wisconsin, USA.
Hu, X.-L., Qiu, L., Sun, W.-B. & Chen, Z. (2006). Acta Cryst. E62, m3213-m3214.
Panagiotopoulos, A., Zafiropoulos, T. F., Perlepes, S. P., Bakalbassis, E., Masson-Ramade, I., Kahn, O., Terzis, A. & Raptopoulou, C. P. (1995). Inorg. Chem. 34, 4918-4923.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.

metal-organic compounds

Tetra--acetato-4O:O';3O,O':O';3O:O,O'-bis[(acetato-2O,O')(1,10-phenanthroline-2N,N')europium(III)]