| abstract |
The invention discloses a kind of ability of reverse photochromism and fluorescent switch bifunctional material, chemical formula is [Eu 2 (L)(NO 3 ) 4 (HOCH 2 CH 2 OH) 2 ] n , preparation method is as follows: ligand 1,1 '-two (3,5- dicarboxyl benzyl) -4,4 '-bipyridyl chloride H 4 LCl 2 Synthesis, [Eu 2 (L)(NO 3 ) 4 (HOCH 2 CH 2 OH) 2 ] n Preparation.Synthetic method of the present invention is simple, raw material is easy to get, is at low cost, is easy to operate, yield is high and favorable reproducibility, and lighting color from it is light yellow become navy blue when, bifunctional material crystal shape and structure can not only be kept not to be changed, and the appearance of fluorescence ON/OFF process is accompanied by colourshifting process, this reversible fluorescence ON/OFF behavior and photochromic properties, after repeatedly circulation, intensity has broad application prospect there is no significantly changing. |