Czapik Agnieszka, Papadopoulos Christos, Lalia-Kantouri Maria, Gdaniec Maria
Acta Crystallogr Sect E Struct Rep Online. 2011 Apr 1;67(Pt 4):m414-5. doi: 10.1107/S1600536811008051. Epub 2011 Mar 9.
In the title compound, [Co(CO(3))(C(10)H(9)N(3))(2)]Br, a distorted octa-hedral coordination of the Co(III) atom is completed by four N atoms of the two chelating di-2-pyridyl-amine ligands and two O atoms of the chelating carbonate anion. The di-2-pyridyl-amine ligands are nonplanar and the dihedral angles between the 2-pyridyl groups are 29.11 (9) and 37.15 (12)°. The coordination cation, which has approximate C(2) symmetry, is connected to the bromide ion via an N-H⋯Br(-) hydrogen bond. The ionic pair thus formed is further assembled into a dimer via N-H⋯O inter-actions about an inversion centre. A set of weaker C-H⋯O and C-H⋯Br(-) inter-actions connect the dimers into a three-dimensional network.
在标题化合物[Co(CO₃)(C₁₀H₉N₃)₂]Br中,Co(III)原子呈扭曲的八面体配位,由两个螯合的二-2-吡啶胺配体的四个N原子和螯合碳酸根阴离子的两个O原子完成配位。二-2-吡啶胺配体是非平面的,2-吡啶基团之间的二面角分别为29.11 (9)°和37.15 (12)°。具有近似C₂对称性的配位阳离子通过N-H⋯Br⁻氢键与溴离子相连。由此形成的离子对通过围绕一个反演中心的N-H⋯O相互作用进一步组装成二聚体。一组较弱的C-H⋯O和C-H⋯Br⁻相互作用将二聚体连接成三维网络。