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Original Articles

Solvothermal synthesis and structure of a cubane cobalt cluster with 3,5-dibromo-2-hydroxybenzaldehyde

, , &
Pages 893-896 | Received 19 Feb 2016, Accepted 21 Aug 2016, Published online: 16 Feb 2017
 

ABSTRACT

A new cubane cluster [Co4(dbhb)43-OCH3)4(CH3OH)4] (1, where Hdbhb is 3,5-dibromo-2-hydroxy-benzaldehyde) has been synthesized by solvothermal method. Complex 1 was characterized by IR spectroscopy, elemental analysis, Raman spectroscopy, and X-ray single-crystal diffraction. 1 is tetranuclear cobalt cluster with a cubane topology, in which the metal ions and the oxygen atoms from the methanol ligands occupy the alternate vertices of the cubane. There is one independent Co(II) ion, assuming a distorted octahedral geometry with cis-angles O–Co–O in the range of 81.3(1)–101.0(2) and Co–O bonds of 2.009(4)–2.212(4) Å from three μ3-OCH3, a dichelating dbhb ligand, and one CH3OH molecule.

Funding

This work is financially supported by the National Nature Science Foundation of China (No. 21161006), the Nature Science Foundation of Guangxi Province of China (No. 2015GXNSFAA139031), Program for the scientific research and technology development plan of Guilin (No.20150133-5), Program of the first session backbone teacher of Guangxi of China, and the Innovation Project of Guangxi Graduate Education (SS201606).

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