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Synthesis, Crystal Structure and Characterization of a 2D-Hybrid Cobalt Hypophosphite

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Abstract

A new two-dimensional inorganic–organic hybrid ortho-phenylenediamine cobalt hypophosphite chloride, [Co(H2PO2)(C12N4H16)]Cl2, has been prepared by slow evaporation from an aqueous solution. It was investigated by means of single-crystal X-ray diffraction, infrared spectroscopy and thermal analysis. The title compound crystallise in orthorhombic space group Pbcn, with unit cell parameters at 298(1) K of a = 9.5538(19) Å, b = 9.1466(18) Å, c = 21.9222(4) Å, V = 1915.7(7) Å3, Z = 2. Its structure is characterised by inorganic layers parallel to (001) of alternating CoO4N2 octahedra and H2PO2 tetrahedra establishing eight-membered ring cavities. This mixed-polyhedral motive is decorated with the ortho-phenylenediamine ligands towards the inter-layer region thus forming a cationic organic–inorganic hybrid layer charge compensated by the chlorine anions. Infrared spectroscopy revealed absorption bands corresponding to the ortho-phenylenediamine molecule and the hypophosphite anion. The compound was proven to be stable up to 474 K under N2 atmosphere.

Graphical Abstract

A new two-dimensional inorganic–organic hybrid ortho-phenylenediamine cobalt hypophosphite chloride, [Co(H2PO2)(C12N4H16)]Cl2, has been prepared by slow evaporation from an aqueous solution and characterized by means of single-crystal X-ray diffraction, infrared spectroscopy and thermal analysis.

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Acknowledgments

The authors from Morocco would like to acknowledge the support and technical assistance of Interface Regional University Center (University Sidi Mohammed Ben Abdellah, Fez), and National Center for Scientific and Technical Research (CNRST-Rabat). T. Đorđević acknowledges financial support of the Austrian Science Foundation (FWF) (Grant No. V203-N19). The authors are thankful to Prof. Dr. Gerald Giester for assisting during the single-crystal X-ray measurement.

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Authors and Affiliations

  1. Engineering Laboratory of Organometallic and Molecular Materials (CNRST, URAC 19), Faculty of Sciences, University Sidi Mohamed Ben Abdellah, P.O. Box 1796 (Atlas), 30000, Fez, Morocco

    F. Atipo Itoua Ngopoh & M. Lachkar

  2. Institut für Mineralogie und Kristallographie, Universität Wien - Geozentrum, Althanstraße 14, 1090, Vienna, Austria

    T. Đorđević & C. L. Lengauer

  3. Laboratory of Mineral Solid and Analytical Chemistry, Department of Chemistry, Faculty of Sciences, University Mohamed 1st, P.O. Box 717, 60000, Oujda, Morocco

    B. El Bali

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  1. F. Atipo Itoua Ngopoh
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  2. M. Lachkar
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  3. T. Đorđević
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  4. C. L. Lengauer
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  5. B. El Bali
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Correspondence to T. Đorđević.

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Ngopoh, F.A.I., Lachkar, M., Đorđević, T. et al. Synthesis, Crystal Structure and Characterization of a 2D-Hybrid Cobalt Hypophosphite. J Chem Crystallogr 45, 369–375 (2015). https://doi.org/10.1007/s10870-015-0603-1

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  • DOI: https://doi.org/10.1007/s10870-015-0603-1

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