| 基于八配位铁的化合物(H2prz)[Fe(bpdc)2]·3H2O的合成、晶体结构及磁性质(英文) |
| Synthesis, Crystal Structure, Magnetic Properties of a Compound Based on Eight-Coordinated Iron(Ⅱ) Ion |
|
| 摘要: 通过水热方法，采用H2bpdc(H2bpdc=2，2′-bipyridine-6，6′-dicarboxylic acid)和prz(prz=piperazine)与FeSO4·7H2O反应，合成了一个质子传递化合物(H2prz)[Fe(bpdc)2]·3H2O (1)，并对其结构、热稳定性和磁性质进行了研究。结构分析结果表明该化合物的晶体属于单斜晶系，P21/n空间群。该化合物的分子由1个[Fe(bpdc)2]2-阴离子，1个H2prz2+阳离子和3个水分子组成。其中，Fe原子采取了少见的八配位畸变的十二面体构型。这些化合物分子通过分子间的氢键和π-π堆积作用形成了1个三维的超分子框架。 |
| 关键词: 质子传递化合物 八配位铁(Ⅱ)配合物 氢键 π-π堆积 |
| 基金项目: |
| Abstract: A 1∶1 proton-transfer compound, namely (H2prz)[Fe(bpdc)2]·3H2O (1) (H2bpdc=2,2′-bipyridine-6,6′-dicarboxylic acid and prz=piperazine) has been obtained by hydrothermal method and characterized by single crystal X-ray diffraction. Compound 1 crystallizes in monoclinic space group P21/n, with a=0.954 10(12) nm, b=2.196 1(3) nm, c=1.252 54(15) nm, β=91.295(5)°, V=2.623 8(5) nm3, Z=4, R=0.059 1 and wR=0.144 4 (I>2σ(I)). Single crystal X-ray diffraction analysis reveals that compound 1 consists of discrete anion of [Fe(bpdc)2]2-, piperazinium cation (H2prz2+), and three water molecules, in which Fe(Ⅱ) ion is eight-coordinated with four N atoms and four O atoms, resulting in a distorted dodecahedral coordination geometry. The complex 1 further extends its structure into a three-dimensional supramolecular architecture by intermolecular strong O-H…O and N-H…O hydrogen bonds and weak π-π stacking interactions. CCDC: 779876. |
| Keywords: proton-transfer compound eight-coordinated iron(Ⅱ) complex hydrogen-bond π-π stacking |
| |
| 摘要点击次数: 1707 |
| 全文下载次数: 2317 |
| 顾金忠,高竹青.基于八配位铁的化合物(H2prz)[Fe(bpdc)2]·3H2O的合成、晶体结构及磁性质(英文)[J].无机化学学报,2012,28(5):1038-1042. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| Support information: |
|
|
|
|
|
|
