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Crystals 2014, 4(4), 490-497; doi:10.3390/cryst4040490

Crystallization and Structure Determination of Fac-Triammin-Aquo-Oxalato-Cobalt (III)-Nitrate Monohydrate

Chemisches Institut der Otto-von-Guericke-Universität Magdeburg, 39106 Magdeburg, Germany
Institut für Anorganische Chemie der Universität Leipzig, 04103 Leipzig, Germany
Author to whom correspondence should be addressed.
Received: 8 October 2014 / Revised: 17 November 2014 / Accepted: 19 November 2014 / Published: 28 November 2014
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The title compound, fac-triammin-aquo-oxalato-cobalt(III)-nitrate monohydrate, fac-[Co(NH3)3(C2O4)(H2O)]NO3·H2O (2), was prepared according to an original synthetic protocol published exactly 100 years ago by Alfred Werner by dissolving the indigo-blue non-electrolyte complex mer-triammin-chloro-oxalato-cobalt(III), mer-[Co(NH3)3(C2O4)Cl] (1), in boiling half-concentrated nitric acid. Contrary to the literature, it did not crystallize directly from the reaction mixture, but crystallization could be induced by saturating the solution with NaClO4. The structure of 2 has monoclinic (P21/n) symmetry. The crystal structure displays an extensive array of N–H···O and O–H···O hydrogen bonding. View Full-Text
Keywords: Oxalato complexes; cobalt; Werner-type complexes; hydrogen bonds; crystal structure Oxalato complexes; cobalt; Werner-type complexes; hydrogen bonds; crystal structure

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Hrib, C.G.; Blaurock, S.; Edelmann, F.T. Crystallization and Structure Determination of Fac-Triammin-Aquo-Oxalato-Cobalt (III)-Nitrate Monohydrate. Crystals 2014, 4, 490-497.

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