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2017•European Journal of Inorganic ChemistryRequires access

Homoleptic Luminescent Lanthanide Frameworks with the Tricyanohydridoborate Anion

Sven H. Zottnick, Marcel T. Seuffert, Christoph Kerpen, Maik Finze, Klaus Müller‐Buschbaum

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Abstract

The first lanthanide tricyanohydridoborates have been synthesized from anhydrous lanthanide chlorides and the oxonium salt (H3O)[BH(CN)3]. Thereby, the three‐dimensional, homoleptic coordination polymers 3∞[Ln{BH(CN)3}3] (Ln = Eu, Tb) could be obtained in solvothermal reactions upon complete substitution of the chloride anions by [BH(CN)3]– anions. Both products exhibit intense and characteristic photoluminescence in the visible region through lanthanide‐specific 4f–4f transitions with long luminescence decay times typical for the respective lanthanide ions. [BH(CN)3]– proves to be a suitable linker for new lanthanide coordination polymers.

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What this paper is about

The first lanthanide tricyanohydridoborates have been synthesized from anhydrous lanthanide chlorides and the oxonium salt (H3O)[BH(CN)3]. Thereby, the three‐dimensional, homoleptic coordination polymers 3∞[Ln{BH(CN)3}3] (Ln = Eu, Tb) could be obtained in solvothermal reactions upon complete substitution of the chloride anions by [BH(CN)3]– anions. Both products exhibit intense and characteristic photoluminescence in the visible region through lanthanide‐specific 4f–4f transitions with long luminescence decay times typical for the respective lanthanide ions. [BH(CN)3]– proves to be a suitable linker for new lanthanide coordination polymers.

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Available abstract

The first lanthanide tricyanohydridoborates have been synthesized from anhydrous lanthanide chlorides and the oxonium salt (H3O)[BH(CN)3]. Thereby, the three‐dimensional, homoleptic coordination polymers 3∞[Ln{BH(CN)3}3] (Ln = Eu, Tb) could be obtained in solvothermal reactions upon complete substitution of the chloride anions by [BH(CN)3]– anions. Both products exhibit intense and characteristic photoluminescence in the visible region through lanthanide‐specific 4f–4f transitions with long luminescence decay times typical for the respective lanthanide ions. [BH(CN)3]– proves to be a suitable linker for new lanthanide coordination polymers.

Key concepts: Homoleptic, Chemistry, Lanthanide, Luminescence, Ion, Inorganic chemistry, Combinatorial chemistry, Nanotechnology

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