3 years ago

Structural and topological regulation on cobalt coordination polymers with mixed ligands

Structural and topological regulation on cobalt coordination polymers with mixed ligands
Structural and topological regulation on a series of cobalt coordination polymers (CPs) built by V-shaped O-donor ligand, 4,4′-(hexafluoroisopropylidene)-bis(benzoic acid) (H 2 L), and auxiliary N-donor ligands was reported. The introduction of secondary N-donor ligands (2,2′-bipyridine, BPY; 1,3-bis(4-pyridyl)propane, BPP) greatly affected the overall structures of cobalt CPs, due to the structural taloring/directing effect of the neutral coordinating molecules BPY and BPP. The CPs were characterized by single crystal X-ray diffractions, infrared spectroscopy, thermogravimetry measurements, elemental analyses and X-ray powder diffractions. X-ray crystallography suggested the CPs possess 2-D covalent network structures, which identified versatile underlying topological structures. Moreover, magnetic properties of two complexes were also explored.

Publisher URL: www.sciencedirect.com/science

DOI: S1387700317302514

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