Synthesis and structure of [C6N4H20]0.5[B5O6(OH)4]: A new organically templated pentaborate with white-light-emission

Optical glucose sensing using ethanolamine–polyborate complexes

An optical glucose sensor based on polyborate–amine complexes with an aggregation-induced emission mechanism.

Temperature dependence of photoluminescence and hydrogen bonding revealed for the first time in a templated borate family: synthesis, structure and properties of a pentaborate [Emmim][B5O6(OH)4]

Herein, a templated borate, [Emmim][B₅O₆(OH)₄] (denoted 1, Emmim = 1-ethyl-2,3-dimethylimidazolium), has been synthesized. It is unexpectedly observed that 1 exhibits a series of broadened luminescence curves from -183 to 75 °C, the emission intensities are measured as a decreasing function of temperature, and the line width of the PL emission is strongly enhanced when temperatures decrease below -100 °C. In addition to this, hydrogen bonding (H-B) in 1 with distinctly enlarging trends was observed as the temperature increased. The influence of temperature on H-Bs and physical properties was explored through single crystal X-ray diffraction analysis, theoretical calculations, PL, and dielectric constant test. The results indicate that the temperature can impact weak H-Bs interactions and the PL can be seen as a prober to the varying of structure such as H-Bs in borate crystal.

Inorganic–organic hybrid white light phosphors

This feature article reviews the development of inorganic–organic hybrid white-light phosphors for the applications on light-emitting diodes (LEDs) and organic light-emitting diodes (OLEDs).

2,2'-(Piperazine-1,4-di-yl)diethanaminium bis-(2-hy-droxy-benzoate)

The asymmetric unit of the title salt, C₈H₂₂N₄²⁺·2C₇H₅O₃⁻, comprises half a 2,2′-(piperazine-1,4-di­yl)diethan­aminium dication plus a 2-hy­droxy­benzoate anion. In the crystal, the anions and cations are linked by N—H⋯O and O—H⋯O hydrogen bonds to form infinite two-dimensional networks parallel with the a unit-cell face. The conformation adopted by the cation in the crystal is very similar to that adopted by the same cation in the structures of the nitrate and tetra­hydrogen penta­borate salts.