Kusrini Eny, Saleh Muhammad Idiris, Kia Reza, Fun Hoong-Kun
Acta Crystallogr Sect E Struct Rep Online. 2008 Jul 9;64(Pt 8):m1014-5. doi: 10.1107/S1600536808020655.
In the title compound, [Ho(NO(3))(3)(C(12)H(8)N(2))(2)], the ten-coordinate Ho(III) ion is chelated by four N atoms from two phenanthroline (phen) ligands and six O atoms from three bidentate nitrate groups. The environment around the Ho atom can be described as a distorted bicapped square anti-prism. Two phenanthroline ligands form a dihedral angle of 43.72 (13)°. Short inter-molecular distances between the centroids of the six-membered rings [3.6887 (14)-3.8374 (16) Å] indicate the existence of π-π inter-actions, which link the mol-ecules into stacks extended in the [10] direction. The crystal packing is further stabilized by weak inter-molecular C-H⋯O hydrogen bonds.
在标题化合物[Ho(NO₃)₃(C₁₂H₈N₂)₂]中,十配位的Ho(III)离子被来自两个菲咯啉(phen)配体的四个N原子和来自三个双齿硝酸根基团的六个O原子螯合。Ho原子周围的环境可描述为一个扭曲的双帽四方反棱柱。两个菲咯啉配体形成的二面角为43.72 (13)°。六元环质心之间的短分子间距离[3.6887 (14) - 3.8374 (16) Å]表明存在π-π相互作用,这些相互作用将分子连接成沿[10]方向延伸的堆积结构。晶体堆积通过弱分子间C-H⋯O氢键进一步稳定。