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Updated: Aug 23, 2025

Construction and Systematical Symmetric Studies of a Series of Supramolecular Clusters with Binary or Ternary Ammonium Triphenylacetates
Published on: February 15, 2016
(S)-Alanine ethyl ester tetra-cyanidoborate, (C5H12NO)[B(CN)4]
Tim Peppel1, Martin Köckerling2
1Leibniz-Institut für Katalyse e.V. (LIKAT), Heterogene Photokatalyse, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany.
Abstract:
The title mol-ecular salt, C5H12NO+·C4BN4 - or (C5H12NO)[B(CN)4], was obtained as single crystals by slow evaporation of a solution of the compound in aceto-nitrile over several weeks. The asymmetric unit contains two (S)-alanine ethyl ester cations and two tetra-cyanidoborate anions, which are linked by N-H⋯N hydrogen bonds. The compound exhibits a relatively low melting point of 110°C and shows a solid-solid phase transition near room temperature (T s-s = 29°C) on the basis of DSC measurements.
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