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[NH4][(CH3)2NH2]2[Ta(C2O4)4]·2H2O: the first (oxalato)tantalate(V) complex structurally characterized

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Abstract

The compound [NH4][(CH3)2NH2]2[Ta(C2O4)4]·2H2O has been synthesized and characterized by elemental and TG/DTA analyses, IR spectroscopy and by the single-crystal X-ray diffraction study. The structure comprises the [Ta(C2O4)4]3− anion, NH4 + and [(CH3)2NH2]+ cations and crystallization water molecules. The Ta atom is octacoordinated by oxygen atoms from four bidentate oxalate groups forming a coordination polyhedron close to the triangular dodecahedron. The charge-assisted hydrogen bonds from both cations connect the [Ta(C2O4)4]3− anions into a three-dimensional framework.

Graphical Abstract

The synthesis and properties of [NH4][(CH3)2NH2]2[Ta(C2O4)4]·2H2O, the first structurally characterized compound with the tetra(oxalato)tantalate(V) anion, is reported.

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Acknowledgments

This research was supported by the Ministry of Science, Education and Sports of the Republic of Croatia (Grants Nos. 098-0982904-2946 and 119-1193079-1084).

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Authors and Affiliations

  1. Ruđer Bošković Institute, Bijenička cesta 54, 10000, Zagreb, Croatia

    Berislav Perić, Nevenka Brničević, Marijana Jurić & Pavica Planinić

  2. Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10000, Zagreb, Croatia

    Dubravka Matković-Čalogović

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  1. Berislav Perić
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  2. Nevenka Brničević
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  3. Marijana Jurić
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  4. Pavica Planinić
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  5. Dubravka Matković-Čalogović
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Correspondence to Berislav Perić.

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Perić, B., Brničević, N., Jurić, M. et al. [NH4][(CH3)2NH2]2[Ta(C2O4)4]·2H2O: the first (oxalato)tantalate(V) complex structurally characterized. Struct Chem 20, 933–941 (2009). https://doi.org/10.1007/s11224-009-9494-0

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  • DOI: https://doi.org/10.1007/s11224-009-9494-0

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