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Two tartratoborates with hybrid anionic groups from unusual condensation reactions

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Abstract

Two novel tartratoborates, namely, K2[(C4H2O6)(B3O4H)](H2O) (1) and KCu2[(C4H2O6)2B](H2O)2.5 (2), have been successfully synthesized by solvothermal reactions. They feature different kinds of structural types based on hybrid borate–tartrate motifs. The structure of compound 1 features a 3D network composed of novel [(C4H2O6)2(B3O4H)2]4− anionic groups interconnected by K+ cations. The [(C4H2O6)2(B3O4H)2]4− anion was formed by the condensation of two (B3O8H)6− groups and two tartrate anions, and such condensation reaction has never been reported previously. Compound 2 exhibits a novel 3D network structure in which 2D {Cu2[(C4H2O6)2B](H2O)2} layers are further interconnected via K+ ions. The [(C4H2O6)2B]5− anion was formed by the condensation of two tartrate anions with a B(OH)4 unit. Magnetic measurements reveal a dominant antiferromagnetic interaction between neighboring Cu2+ ions in compound 2. Furthermore, UV-vis and infrared spectra and thermal analyses were also performed.

Graphical abstract: Two tartratoborates with hybrid anionic groups from unusual condensation reactions

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Publication details

The article was received on 14 Apr 2017, accepted on 10 May 2017 and first published on 12 May 2017


Article type: Paper
DOI: 10.1039/C7DT01360D
Citation: Dalton Trans., 2017, Advance Article
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    Two tartratoborates with hybrid anionic groups from unusual condensation reactions

    D. Yan, F. Mao, T. Ruan and J. Mao, Dalton Trans., 2017, Advance Article , DOI: 10.1039/C7DT01360D

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