Synthesis and crystal structure of a new dinuclear holmium(III) complex with a bulky anthracene-based carboxylate ligand

Liu C.-S.; Hu M.; Zhang Q.

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Synthesis and crystal structure of a new dinuclear holmium(III) complex with a bulky anthracene-based carboxylate ligand

机译：一种新的具有大蒽基羧酸盐配体的双核（III）配合物的合成和晶体结构

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The reaction of Ho(NO_3)_3 with the bulky anthracene-9-carboxylic acid (HL) and 1,10-phenanthroline (phen) in the presence of 2,6-dimethylpyridine afforded a dinuclear Ho~(III) complex [Ho _2(L)_6(phen)_2] (1) (L = anthracene-9- carboxylate), which was characterized by elemental analysis and single-crystal X-ray diffraction analysis (triclinic system, space group Pī, with a = 12.4994(3), b = 13.3556(3), c = 14.9751(3) ?, α = 110.7630(1), β = 103.0680(1), γ = 106.8530(1)°, V = 2080.59(9) ?~3, and Z = 1). Complex 1 has a centrosymmetric binuclear cage structure in which two Ho~(III) atoms are both nine-coordinated and bridged by four bulky anthracnene-9-carboxylate (L) ligands with a non-bonding Ho?Ho separation of 3.9076 (2) ?. The anthracene-9-carboxylate groups coordinate each Ho~(III) atom in three different ways. The adjacent discrete dinuclear subunits are arranged into a one-dimensional (1D) chain along the [111] direction by intermolecular π???π stacking interactions, with the centroid-centroid separation of 3.724(2) ?. Graphical Abstract: A dinuclear HoIII complex has been successfully achieved by using a bulky anthracene-9-carboxylic acid (HL), together with incorporating 1,10-phenanthroline (phen) as a chelating co-ligand. This work offers a new proof of the coordination versatility of simple monocarboxylic acid ligands bearing a bulky aromatic skeleton.[Figure not available: see fulltext.]

机译：Ho（NO_3）_3与庞大的蒽-9-羧酸（HL）和1,10-菲咯啉（phen）在2,6-二甲基吡啶存在下的反应得到双核Ho〜（III）络合物[Ho _2 （L）_6（phen）_2]（1）（L =蒽-9-羧酸盐），通过元素分析和单晶X射线衍射分析（三斜晶系，空间群Pī，a = 12.4994（ 3），b = 13.3556（3），c = 14.9751（3）α，α= 110.7630（1），β= 103.0680（1），γ= 106.8530（1）°，V = 2080.59（9）α〜3，并且Z = 1）。配合物1具有中心对称的双核笼状结构，其中两个Ho〜（III）原子都被9个配位并被四个庞大的蒽-9-羧酸盐（L）配体桥连，且未键合的Ho？Ho分离度为3.9076（2）？蒽-9-羧酸基团以三种不同方式配位每个Ho-（III）原子。相邻的离散的双核亚基通过分子间的π-π-π堆积相互作用沿[111]方向排列成一维（1D）链，质心-质心间隔为3.724（2）π。图形摘要：通过使用庞大的蒽9-羧酸（HL）并掺入1,10-菲咯啉（phen）作为螯合共配体，已成功实现了双核HoIII复合物。这项工作为带有庞大的芳族骨架的简单单羧酸配体的配位通用性提供了新的证据。[图不可用：参见全文。

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《Journal of chemical crystallography》 |2010年第11期|共4页
作者
Liu C.-S.; Hu M.; Zhang Q.;
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正文语种 eng
中图分类晶体学;
关键词
Anthracene-based ligand; Bulky skeleton; Crystal structure; Holmium(III) complex;

机译：蒽基配体;大骨架;晶体结构;Ho（III）配合物;

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1. Synthesis and crystal structure of a new dinuclear holmium(III) complex with a bulky anthracene-based carboxylate ligand [J] . Liu C.-S., Hu M., Zhang Q. Journal of chemical crystallography . 2010,第11期

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Synthesis and crystal structure of a new dinuclear holmium(III) complex with a bulky anthracene-based carboxylate ligand

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