Research On The Synthesis Of Novel Fluorene Derivatives And Complexes

Fluorene and its derivatives are widely used in medicine, pesticide, photoelectricfunctional materials, etc.. Especially the high thermal and light stability, fluorene’sderivatives have special applications in organic light-emitting materials.Activity of fluorene is2.7.9sites, so we usually introduct other groups in theactive sites by addition reaction, so as to improve the luminescence properties offluorene. The light-emitting materials of fluorene mainly are polyfluorene and smallmolecule fluorene, due to the small molecule structure clear, good solubility,convenient processing makes small molecule fluorene light-emitting material ispreferred.A series of fluorene compounds that have no literature reports were synthesizedby fluorene and acrylic ester, aromatic aldehydes and benzyl bromide as raw material.In addition, the organic-metal complex have good application in magnetic andluminescence, a new kind of9-hydroxy-carboxylic acid copper complexes wassynthesized.Our study is divided into four parts:(1)A series of9,9-bis-(propionic acid ester)-nitro fluorene derivatives weresynthesized by fluorene and nitro fluorene and acrylate Michael addition. Compoundsof synthesis were characterized by IR, MS,~1H NMR, and the single crystal of3b wascultivated, the crystal structure of3b was determined by X-ray single crystaldiffraction.(2)A series of9-aromatic methyl fluorene derivatives were synthesized byfluorene and aromatic aldehydes Knoevenagel addition. Compounds of synthesis werecharacterized by IR, MS,~1H NMR, and the single crystal of3a6was obtained, thecrystal structure of3a6was determined by X-ray single crystal diffraction. (3)9,9-dibenzyl fluorene was synthesized by fluorene and benzyl bromideaddition.Compound of synthesis was characterized by IR,~1H NMR, MS and its singlecrystal was cultivated, the crystal structure of cultivation was determined by X-raysingle crystal diffraction.(4)A new kind of9-hydroxy-fluorene-9-carboxylic acid copper complex wassynthesized by9-hydroxy-fluorene-9-carboxylic acid as raw material. Complex ofsynthesis was characterized by IR, MS and~1H NMR, and the single crystal ofcomplex was developed，the crystal structure was determined by X-ray single crystaldiffraction.