Wöhlert Susanne, Wriedt Mario, Jess Inke, Näther Christian
Acta Crystallogr Sect E Struct Rep Online. 2012 Jun 1;68(Pt 6):m745. doi: 10.1107/S1600536812019691. Epub 2012 May 12.
In the crystal structure of the title compound, [Ni(C(2)N(3))(2)(C(5)H(5)N)(4)], the Ni(II) cations are coordinated by four pyridine ligands and two dicyanamide anions into discrete complexes. The shortest Ni⋯Ni separation is 8.1068 (10) Å. The structure is pseudo-centrosymmetric and can also be refined in the space group C2/c in which both anionic ligands are strongly disordered and the refinement leads to significantly poorer reliability factors.
在标题化合物[Ni(C₂N₃)₂(C₅H₅N)₄]的晶体结构中,Ni(II)阳离子由四个吡啶配体和两个双氰胺阴离子配位形成离散的配合物。最短的Ni⋯Ni间距为8.1068 (10) Å。该结构是假中心对称的,也可以在空间群C2/c中进行精修,在该空间群中两个阴离子配体都严重无序,精修得到的可靠性因子明显更差。