Tetraaquabis(1,10-phenanthroline-κ2N,N′)strontium 5,5′-diazenediylditetrazolide

Bao-Juan Jiao,Fu-Rong Liu,Zhi-Jun Yan,Gang Zhu,Yi-Xia Ren

doi:10.1107/s1600536810039115

Bao-Juan Jiao, Fu-Rong Liu + Show 3 more

Open Access

https://doi.org/10.1107/s1600536810039115

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Abstract

The title complex, [Sr(C12H8N2)2(H2O)4](C2N10), contains an [Sr(phen)2(H2O)4]2+ cation (phen is 1,10-phenanthroline) and a 5,5′-diazenediylditetrazolide anion (site symmetry 2). The Sr2+ cation (site symmetry 2) is coordinated by four N atoms from two chelating phen and four water molecules. In the crystal structure, the water molecules and the N atoms in the tetrazolide rings form an extensive range of O—H⋯N hydrogen bonds which link the complex into a two-dimensional structure. An adjacent layer further yields a three-dimensional supramolecular network by offset face-to-face π–π stacking interactions of the phen ligands [with centroid–centroid distances of 3.915 (2) and 4.012 (2) Å]. The two bridging N atoms of the anion are equally disordered about the twofold rotation axis.

Highlights

Sr2+ cation is coordinated by four N atoms from two chelating phen and four water molecules
The water molecules and the N atoms in the tetrazolide rings form an extensive range of O—H N
The two bridging N atoms of the anion are disordered about the twofold rotation axis

Summary

Structure Reports

Key indicators: single-crystal X-ray study; T = 296 K; mean (C–C) = 0.004 Å; disorder in solvent or counterion; R factor = 0.027; wR factor = 0.069; data-toparameter ratio = 12.8. The title complex, [Sr(C12H8N2)2(H2O)4](C2N10), contains an [Sr(phen)2(H2O)4]2+ cation (phen is 1,10-phenanthroline) and a 5,50 -diazenediylditetrazolide anion (site symmetry 2). The. Sr2+ cation (site symmetry 2) is coordinated by four N atoms from two chelating phen and four water molecules. The water molecules and the N atoms in the tetrazolide rings form an extensive range of O—H N hydrogen bonds which link the complex into a two-dimensional structure. An adjacent layer further yields a threedimensional supramolecular network by offset face-to-face – stacking interactions of the phen ligands [with centroid–. The two bridging N atoms of the anion are disordered about the twofold rotation axis

Data collection

Mo K radiation

Special details