Abstract
This report describes that the luminescence of anthracene-based acylhydrazone derivative AHP−mB8 can be tuned by physical stimuli, such as heating and grinding. The AHP−mB8 xerogel from cyclohexane shows obviously mechanofluorochromic behaviour with the emission colors changing from blue to green upon grinding, whereas the ethanol xerogel shows yellowish-green light emission, which is almost unchanged after grinding. In the other hand, the ethanol xerogel exhibits thermofluorochromic with the emission colors changing from yellowish-green to blue upon heating. Based on SEM, XRD, DSC and Uv-vis studies, the observed mechanofluorochromism and thermochromism of AHP−mB8 is attributed to the result of solid–solid phase transition.
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