Received 9 September 2013
aDepartment of Chemistry, Faculty of Science, Fukuoka University, Nanakuma, Jonan-ku, Fukuoka 814-0180, Japan,bDepartment of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and cDepartment of Chemistry, Graduate School of Science and Technology, Kumamoto University, Kurokami, Kumamoto 860-8555, Japan
Correspondence e-mail: email@example.com
The title dinuclear complex, [Fe2Br4(C13H9N4)2], which lies on an inversion center, features two approximately planar bis(pyridin-2-yl)pyrazole (bpypz-) ligands [maximum deviation = 0.082 (3) Å] and four bromide ions. Each FeIII ion is octahedrally coordinated by four N atoms of two bpypz- ligands and two Br ions. - stacking interactions [centroid-centroid distances = 3.7004 (17)-4.0123 (18) Å] are observed between pyridyl and pyrazole rings, and between pyridyl and pyridyl rings of adjacent complex molecules.
For metal complexes of 3,5-bis(pyridin-2-yl)pyrazole, see: Yoneda, Adachi, Hayami et al. (2006); Yoneda, Adachi, Nishio et al. (2006); Ishikawa et al. (2010); Mishima et al. (2011); Washizaki et al. (2012).
Data collection: CrystalClear (Rigaku, 2008); cell refinement: CrystalClear; data reduction: CrystalClear; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: CrystalStructure (Rigaku, 2010); software used to prepare material for publication: CrystalStructure.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: IS5304 ).
This work was supported by the fund Grant-in-Aids for Science Research (No. 25410078) from the Ministry of Education, Culture, Sports, Science and Technology of Japan.
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