Synthesis, Structure, and Luminescent Property of the Templated Borate [ C9H14N] •[ B5O6( OH) 4]

The templated borate, [C9H14N]·[B 5O6(OH)4], was synthesized under hydrothermal conditions. Single crystal X-ray diffraction techonology reveals that it crystallizes in the triclinic system, space group P$\bar{1}$ (No. 2). The material was also characterized by element analysis, Fourier transform infrared spectroscopy (FTIR), powder X-ray diffraction (PXRD), thermogravimetric and differential thermal analysis (TG-DTA), and luminescence spectroscopy. The compound consisted of isolated pentaborate [B5O6(OH) 4]- and N-butylpyridinium cations [C9H 14N]+. The [B5O6(OH) 4]- anions are connected together by hydrogen bonds to form a three-dimensional framework, in which [C9H14N] + cations are located in. [C9H14N] ·[B5O6(OH)4] exhibits tunable luminescence emission at 415-458 nm by means of heating treatment from 100 to 300 °C. Copyright © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.