Size-dependent luminescence of boron difluoride beta-diketonates

作者：Mirochnik A G^*; Fedorenko E V; Karasev V E

来源：Russian Chemical Bulletin, 2008, 57(6): 1190-1193.

DOI：10.1007/s11172-008-0149-x

• boron difluoride beta-diketonates
• luminescence
• microcrystals
• excitons

Size-dependent luminescence properties of boron difluoride beta-diketonates were detected. Most compounds investigated are characterized by noticeable hypsochromic shifts of luminescence band maxima on going from bulk crystals to microcrystals. However, a decrease in the crystal size of (dibenzoylmethanato) boron difluoride with unique supramolecular structure was accompanied by a bathochromic shift of the luminescence band maximum. Size-dependent luminescence properties of complexes examined were analyzed in the framework of excitonic mechanism.

• 出版日期2008-6