Synthesis, structures, and magnetic properties of the copper(II), cobalt(II), and manganese(II) complexes with 9-acridinecarboxylate and 4-quinolinecarboxylate ligands.
Synthesis, structures, and magnetic properties of the copper(II), cobalt(II), and manganese(II) complexes with 9-acridinecarboxylate and 4-quinolinecarboxylate ligands.
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DOI：
10.1021/ic050886d
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发表时间：
2005-11
影响因子：
4.6
通讯作者：
X. Bu;M. Tong;Yabo Xie;Jian-Rong Li;Ho‐Chol Chang;S. Kitagawa;J. Ribas
中科院分区：
文献类型：
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作者：
X. Bu;M. Tong;Yabo Xie;Jian-Rong Li;Ho‐Chol Chang;S. Kitagawa;J. Ribas
为了探索配体与配合物结构之间的关系，我们合成并表征了9-吖啶羧酸（HL（1））和4-喹啉羧酸（HL（2））的金属配合物[Cu（2）（mu（2）-OMe）（2）（L（1））（2）（H（2）O）]（0.69）]（n）1，[Cu（2）（L（1））（4）（CH（3）OH）（2）] 2，[Cu（3）（L（1））（6）（CH（3）OH）（6）].3H（2）O 3，[Mn（3）（L（1））（6）（CH（3）OH）（6）].3H（2）O 4，[Co（3）（L（1））（6）（CH（3）OH）（6）].3H（2）O 5，[Cu（L（2））（2）]（n）6、[Mn（L（2））（2）（H（2）O）]（n）7和[Co（L（2））（2）（H（2）O）]（n）8。1是一个三维（3D）的聚合物与互穿NbO型网络显示一维（1D）通道，而2和3采取双核和三核结构，分别，因为在制备三个配合物的反应体系的碱性的差异。4和5具有类似于3的三核结构。配体L（1）在1-5中以N，O-桥连和2-5中以O，O '-桥连表现出不同的配位模式，金属离子也表现出不同的配位几何构型：1为平面正方形，2为四方锥形，3-5为八面体。6具有（4，4）网格的二维结构，其中L（2）采用N，O-桥连方式，Cu（II）中心采用正方形平面几何构型. 7和8是具有一维链状结构的同构配合物，L（2）采用O，O-桥连方式。此外，分子间的O-H…N氢键和π-π堆积相互作用进一步扩展了配合物（1和6除外），形成3D结构。对2-7的磁性进行了详细的研究和讨论。
To explore the relationships between the structures of ligands and their complexes, we have synthesized and characterized a series of metal complexes with two structurally related ligands, 9-acridinecarboxylic acid (HL(1)) and 4-quinolinecarboxylate acid (HL(2)), [Cu(2)(mu(2)-OMe)(2)(L(1))(2)(H(2)O)(0.69)](n) 1, [Cu(2)(L(1))(4)(CH(3)OH)(2)] 2, [Cu(3)(L(1))(6)(CH(3)OH)(6)].3H(2)O 3, [Mn(3)(L(1))(6)(CH(3)OH)(6)].3H(2)O 4, [Co(3)(L(1))(6)(CH(3)OH)(6)].3H(2)O 5, [Cu(L(2))(2)](n) 6, [Mn(L(2))(2)(H(2)O)](n) 7, and [Co(L(2))(2)(H(2)O)](n) 8. 1 is a three-dimensional (3D) polymer with an interpenetrating NbO type network showing one-dimensional (1D) channels, whereas 2 and 3 take bi- and trinuclear structures, respectively, because of the differences in basicity of the reaction systems in preparing the three complexes. 4 and 5 have trinuclear structures similar to that of 3. In 1-5, ligand L(1) performs different coordination modes with N,O-bridging in 1 and O,O'-bridging in 2-5, and the metal ions also show different coordination geometries: square planar in 1, square pyramidal in 2, and octahedral in 3-5. 6 has a two-dimensional structure containing (4,4) grids in which L(2) adopts the N,O-bridging mode and the Cu(II) center takes square planar geometry. 7 and 8 are isostructural complexes showing 1D chain structures, with L(2) adopting the O,O-bridging mode. In addition, the intermolecular O-H...N hydrogen bonds and pi-pi stacking interactions further extend the complexes (except 1 and 6), forming 3D structures. The magnetic properties of 2-7 have been investigated and discussed in detail.