Study of Hydrolysis Kinetic of New Laser Material [anti-B18H22]

Abstract

[anti-B₁₈H₂₂] is a potential blue laser material. In order to study the stability of [anti-B₁₈H₂₂] in aqueous solution, the hydrolytic reaction kinetic of [anti-B₁₈H₂₂] at various pH values and temperatures was studied by fluorescence spectroscopy. The results showed that [anti-B₁₈H₂₂] hydrolysis rate was accelerated by increasing temperature, and the trend showed that [anti-B₁₈H₂₂] hydrolyzed faster in low pH than in high pH solutions at the same temperature. The hydrolysis of [anti-B₁₈H₂₂] solution is second-order reaction at lower temperature (300.15–323.15 K), the activation energy is 52.37 kJ mol^–1 and pre-exponential factor (A) is 7.9 × 10¹⁰. The work described here is significant for future studies of the properties of [anti-B₁₈H₂₂] in aqueous solution.