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Cobalt(ethylenediamine)sulfate: A Pillared Layered Coordination Polymer


A pillared-layered coordination polymer of formula Co(H2NCH2CH2NH2)SO4 (1) has been synthesized under solvothermal condition, and fully characterized. The three-dimensional structure of 1 is built up from cobalt sulfate sheets, each of which is composed of regularly alternating CoO4N2 octahedra and SO4 tetrahedra, with ethylenediamine pillars connecting the adjacent sheets. The coordinate covalent and hydrogen bonds have been revealed to exhibit an important role in the organization of the structure. The compound is found to be thermally stable up to, and above, 573 K and exhibits paramagnetic behavior at room temperature.

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The Thailand Research Fund and the Commission for Higher Education are acknowledged for financial support, the Department of Chemistry, Khon Kaen University, for access to the VSM magnetometer, and the Synchrotron Radiation Source, STFC CCLRC Daresbury Laboratory for access to microcrystal diffraction facilities. Additionally, S. Lauchan thanks the Commission for Higher Education and the Graduate School of Chiang Mai University for graduate scholarships.

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Correspondence to Apinpus Rujiwatra.

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Lauchan, S., Prior, T.J., Meansiri, S. et al. Cobalt(ethylenediamine)sulfate: A Pillared Layered Coordination Polymer. J Inorg Organomet Polym 18, 352–357 (2008).

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  • Cobalt
  • Sulfate
  • Pillaring
  • Crystal structure
  • Thermal properties
  • Magnetic properties