A tetrahedrally coordinated cobalt(II) aminophosphonate containing one-dimensional channels

A tetrahedrally coordinated cobalt(II) phosphonate, Co(O3PCH2CH2NH2), has been synthesized using hydrothermal techniques. X-ray diffraction indicates that this material is a three-dimensional open framework with rings aligned along a single axis forming infinite one-dimensional channels. The framework decomposes just above 400 °C. Magnetic susceptibility data are consistent with weak antiferromagnetic ordering at low temperatures.

Graphical abstractCo(O3PCH2CH2NH2) contains one-dimensional channels along the a-axis with approximate dimensions of 3.66 Å×6.02 Å. The channels are constructed from inorganic layers consisting of two sets of orthogonal [CoP2O4] four-rings in the bc-layer that are held in register by the bridging ethylamine moiety of the phosphonate.Figure optionsDownload full-size imageDownload as PowerPoint slide