Switching a 2D Co(II) Layer to a 3D Co7-Cluster-Based Metal-Organic Framework: Syntheses, Crystal Structures, and Magnetic Properties

被引：96

作者：

Chen, Di-Ming

Ma, Xiao-Zhou

Zhang, Xue-Jing

Xu, Na ^{[1
]}

Cheng, Peng

机构：

[1] Nankai Univ, Dept Chem, Key Lab Adv Energy Mat Chem MOE, Tianjin 300071, Peoples R China

来源：

INORGANIC CHEMISTRY | 2015年 / 54卷 / 06期

关键词：

SINGLE-MOLECULE MAGNET; COORDINATION POLYMERS; CHAIN-MAGNET; SMM BEHAVIOR; CLUSTER; ACID; SPIN; TRANSFORMATION; MODULATION; SEPARATION;

D O I：

10.1021/acs.inorgchem.5b00074

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Two 2D layered coordination networks with formulas of {[Co(TPA)Cl](H2O)(2.5)}(n) (1) and {[Co(TPA)-(mu(2)-OH)] (H2O)(2)}(n) (2) (HTPA = 4-(1,2,4-triazol-4-yl)-phenylacetic acid) were solvothermally synthesized and fully characterized. Interesting 1D Co2+-Cl or Co2+-mu(2)-OH chain structures were observed. By carefully adjusting the reaction conditions; a new 3D metal-organic framework (MOF) with a formula of {[Co-7(TPA)(6)(u(3)-OH)(4)(mu(2)-OH)(2)(H2O)(4)]-(TPA)(2)(DMF)(3)(H2O)(3)}(n) (3) was obtained. MOF 3 is built from Co-7 clusters and fully deprotonated TPA ligands, which, display a cubic pcu topology. Factors that influence the structures of the three TPA-based complexes, as well as their magnetic properties, were investigated in detail. The heptanuclear-Co(II)-cluster-based MOF 3 shows interesting Magnetization dynamics at low temperature.

引用

页码：2976 / 2982

页数：7

共 63 条

[61] Traditional and Microwave-Assisted Solvothermal Synthesis and Surface Modification of Co7 Brucite Disk Clusters and Their Magnetic Properties [J].