Structure and properties of cobalt ortho-phenylenediacetate coordination polymers with rigid dipyridyl ligands |
| |
| Authors: | Karyn M Blake |
| |
| Institution: | Lyman Briggs College and Department of Chemistry, Michigan State University, East Lansing, MI 48825, USA |
| |
| Abstract: | Divalent cobalt coordination polymers containing both ortho-phenylenediacetate (ophda) and rigid dipyridyl ligands 4,4′-bipyridine (bpy) or 1,2-bis(4-pyridyl)ethylene (dpee) display different topologies depending on carboxylate binding mode, tether length, and inclusion of charged species. Co(ophda)(H2O)(dpee)]n (1) displays a common (4,4) grid layer motif. Use of the shorter bpy tether afforded {Co2(ophda)2(bpy)3(H2O)2]Co(bpy)2(H2O)4](NO3)2·2bpy·7H2O}n (2) or Co(ophda)(bpy)]n (3) depending on cobalt precursor. Compound 2 manifests 5-connected Co2(ophda)2(bpy)3(H2O)2]n pillared bilayer slabs with rare 4862 SnS topology and entrained Co(bpy)2(H2O)4]2+ complex cations. The 3-D coordination polymer 3 has an uncommon 4,6-connected binodal (4462)(446108) fsc topology, and shows ferromagnetic coupling (J = +1.5(2) cm−1) along 1-D spiro-fused Co(OCO)2]n chain submotifs. |
| |
| Keywords: | Cobalt Coordination polymer Thermal analysis Anion dependence Topology Ferromagnetism |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
