Poly[zinc(II)-[μ-1,4-bis­(imidazol-1-yl­methyl)benzene]-μ-4,4′-oxydibenzoato]

Chun-Hui Yu

doi:10.1107/S1600536808023982

. 2008 Aug 6;64(Pt 9):m1106. doi: 10.1107/S1600536808023982

Poly[zinc(II)-[μ-1,4-bis(imidazol-1-ylmethyl)benzene]-μ-4,4′-oxydibenzoato]

Chun-Hui Yu ^a,^*

PMCID: PMC2960729 PMID: 21201572

Abstract

In the title compound, [Zn(C₁₄H₈O₅)(C₁₄H₁₄N₄)]_n, the coordination polyhedron around each Zn^II atom is a distorted tetrahedron. The ligands bridge the Zn atoms to form a two-dimensional (4,4)-network.

Related literature

For related literature, see Batten & Robson (1998 ▶); Ma et al. (2003 ▶).

Experimental

Crystal data

[Zn(C₁₄H₈O₅)(C₁₄H₁₄N₄)]
M _r = 559.87
Monoclinic,
a = 6.1608 (9) Å
b = 25.811 (4) Å
c = 16.185 (3) Å
β = 92.503 (2)°
V = 2571.2 (7) Å³
Z = 4
Mo Kα radiation
μ = 1.00 mm⁻¹
T = 293 (2) K
0.33 × 0.25 × 0.19 mm

Data collection

Bruker APEX CCD area-detector diffractometer
Absorption correction: multi-scan (SADABS; Bruker, 1998 ▶) T _min = 0.718, T _max = 0.826
14194 measured reflections
5057 independent reflections
3906 reflections with I > 2σ(I)
R _int = 0.047

Refinement

R[F ² > 2σ(F ²)] = 0.061
wR(F ²) = 0.159
S = 1.07
5057 reflections
343 parameters
H-atom parameters constrained
Δρ_max = 1.43 e Å⁻³
Δρ_min = −0.31 e Å⁻³

Data collection: SMART (Bruker, 1998 ▶); cell refinement: SAINT (Bruker, 1998 ▶); data reduction: SAINT 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.

Supplementary Material

Crystal structure: contains datablocks global, I. DOI: 10.1107/S1600536808023982/bt2755sup1.cif

e-64-m1106-sup1.cif^{(20.8KB, cif)}

Structure factors: contains datablocks I. DOI: 10.1107/S1600536808023982/bt2755Isup2.hkl

e-64-m1106-Isup2.hkl^{(242.7KB, hkl)}

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

Acknowledgments

The author thanks Beihua University for supporting this work.

supplementary crystallographic information

Comment

Metal–organic frameworks is currently of great interest because of their interesting structures and potential applications. As a good candidate for rigid rod-like spacers in the construction of metal–organic polymers, 4,4'-bipyridine has been relatively well known and has shown hundreds of interesting supramolecular architectures (Batten & Robson, 1998). However, the flexible ligands such as 1,4-bis(imidazol-1-ylmethyl)benzene (L) has not been well explored to date (Ma et al., 2003). In this work, I selected 4,4'-oxybis(benzoic acid) (H₂oba) and L as linkers, generating a new coordination polymer, [Zn(oba)(L)], (I), which is reported here.

In compound (I) each Zn^II atom is four-coordinated by two N atoms from one L ligand, and two O atoms from two oba carboxylate anions in a distorted tetrahedral coordination sphere (Fig. 1). The two neighbouring Zn^II atoms are bridged by the oba and L ligands to form a two-dimensional (4,4) network (Fig. 2).

Experimental

A mixture of H₂oba (0.5 mmol), L (0.5 mmol), NaOH (1 mmol) and ZnCl₂.6H₂O (0.5 mmol) was suspended in 12 ml of deionized water and sealed in a 20 ml Teflon-lined autoclave. Upon heating at 170°C for one week, the autoclave was slowly cooled to room temperature. The crystals were collected, washed with deionized water and dried.