Parallel chain polyrotaxane, layer, and diamondoid divalent metal coordination polymers containing para aromatic dicarboxylate and bis(4-pyridylmethyl)piperazine ligands

The structures and properties of zinc(II) and cadmium(II) coordination polymers based on semi-rigid phenylenediacetate and 1,4-bis(2-methylimidazol-1-ylmethyl)benzene linkers

“…previously and shown to form one- [7,37] two- [7,15,38,39] and three-dimensional [40][41][42] networks. Although some of the 3D networks are interpenetrated, none of the previously reported zinc ppda compounds form a polycatenane structure similar to that adopted by 2.…”

Poly[[diaqua[μ-1,4-bis(pyridin-4-ylmethyl)piperazine-κ2N:N′]{μ-2,2′-[(1,4-phenylene)bis(oxy)]diacetato-κ2O:O′}cobalt(II)] pentahydrate]

“…For the preparation of bis(4-pyridymethyl)piperazine, see: Niu et al (2001). For the preparation of divalent metal terephthalate coordination polymers containing 4-bpmp, see: Farnum et al (2013). Data collection: APEX2 (Bruker, 2012); cell refinement: SAINT (Bruker, 2012); data reduction: SAINT (Bruker, 2012); program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al, 2009); software used to prepare material for publication: OLEX2.…”

A Three‐Dimensional Pentanuclear Co(II) Coordination Polymer: Structural Topology, Hirshfeld Surface Analysis and Magnetic Properties

“…[1,2,15,16] It is well known that the nature of the divalent metal ions, anionic carboxylate ligands, and the presence of nitrogen donor co-ligands such as 1,4-bis(4-pyridinylmethyl)piperazine (bpmp) continues to spur probing synthetic examinations because of their efficacious properties and remarkable structural aesthetics of resulting CPs. [17][18][19][20][21] A large number of CPs containing N-and O-mixed bridging ligands have been reported previously. [22][23][24] Among them, dicarboxylates are found to be prominent bridging ligands for the creation of polynuclear Co II clusters as the core accumulation induced by carboxyl groups may link these discrete clusters into extended networks, that will generate magnetically coupled pathways among paramagnetic Co II ions.…”

“…It is well known that the nature of the divalent metal ions, anionic carboxylate ligands, and the presence of nitrogen donor co‐ligands such as 1,4‐bis(4‐pyridinylmethyl)piperazine (bpmp) continues to spur probing synthetic examinations because of their efficacious properties and remarkable structural aesthetics of resulting CPs [17–21] . A large number of CPs containing N‐ and O‐mixed bridging ligands have been reported previously [22–24] .…”