Abstract
The asymmetric unit of the title coordination complex, [Ag2Br2(C5H8N2)2]n, comprises a monodentate 1-ethylimidazole ligand, an Ag+ cation and a μ3-bridging Br− anion, giving a distorted tetrahedral AgNBr3 stereochemistry about the Ag+ cation [Ag—N = 2.247 (2) Å and Ag—Br = 2.7372 (4)–2.7523 (4) Å]. Two bridging bromide anions generate the dimeric [Ag2Br2(C5H8N)2] repeat unit [Ag⋯Ag = 3.0028 (5) Å], while a third Br− anion links the units through corner sharing in an inversion-related Ag2Br2 association [Ag⋯Ag = 3.0407 (4) Å], generating a one-dimensional ribbon step-polymer structure, extending along the c axis.
Highlights
The asymmetric unit of the title coordination complex, [Ag2Br2(C5H8N2)2]n, comprises a monodentate 1-ethylimidazole ligand, an Ag+ cation and a 3-bridging BrÀ anion, giving a distorted tetrahedral AgNBr3 stereochemistry about the Ag+ cation [Ag—N = 2.247 (2) Aand Ag—Br = 2.7372 (4)– 2.7523 (4) A ]
Two bridging bromide anions generate the dimeric [Ag2Br2(C5H8N)2] repeat unit [AgÁ Á ÁAg = 3.0028 (5) A ], while a third BrÀ anion links the units through corner sharing in an inversion-related Ag2Br2 association [AgÁ Á ÁAg = 3.0407 (4) A ], generating a one-dimensional ribbon step-polymer structure, extending along the c axis
Symmetry codes: (i) −x+1, y, −z−1/2; (ii) x, −y, z+1/2; (iii) −x+1, −y, −z; (iv) x, −y, z−1/2
Summary
The asymmetric unit of the title coordination complex, [Ag2Br2(C5H8N2)2]n, comprises a monodentate 1-ethylimidazole ligand, an Ag+ cation and a 3-bridging BrÀ anion, giving a distorted tetrahedral AgNBr3 stereochemistry about the Ag+ cation [Ag—N = 2.247 (2) Aand Ag—Br = 2.7372 (4)– 2.7523 (4) A ]. Two bridging bromide anions generate the dimeric [Ag2Br2(C5H8N)2] repeat unit [AgÁ Á ÁAg = 3.0028 (5) A ], while a third BrÀ anion links the units through corner sharing in an inversion-related Ag2Br2 association [AgÁ Á ÁAg = 3.0407 (4) A ], generating a one-dimensional ribbon step-polymer structure, extending along the c axis. Crystal data [Ag2Br2(C5H8N2)2] Mr = 567.80 Monoclinic, C2=c a = 15.2489 (15) Ab = 13.9888 (13) Ac = 7.7198 (7) A = 109.809 (1)
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