title: [Study on the synthesis and spectra of 2-thenoyl-2-carbazolyl-N-butyltrifluoroacetone].
abstract: In phene-50% NaOH medium, 1,4-dibromobutane reacts with carbazole (CZ) to form N-bromobutylcarbaole (BCZ) at 70-80 degrees C. The 2-thenoyl-2-carbazolyl-N-butyltrifluoroacetone (TCBTA) was synthesized by reaction of BCZ with 2-thenoyltrifluoroacetone (TTA) in acetone-K2CO3 medium at 50 degrees C. The TCBTA is a light brown crystal with m.p. of 211-214 degrees C. The structure of the synthesized TCBTA was characterized by UV, IR and GC/MS, and the UV and IR spectra of CZ, BCZ and TTA have been studied. In chloroform, TCBTA has three maximum absorptions at 241, 265 and 295 nm whose molar absorptivity is 1.88 x 10(5), 1.25 x 10(5) and 1.08 x 10(5) L x mol(-1) x cm(-1), respectively. Extraction rate of iron(III) and neodymium(III) by TCBTA in chloroform rises by 3 and 1.6 times compared with TTA. The fluorescence of TCBTA-Nd(III) complex is 5 times higher than TTA-Nd(III) complex. It was shown that TCBTA has excellent photosensitivity.
authors.affiliation: Faculty of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou 510090, China.
authors.forename: Qian
authors.initials: Q
authors.lastname: Yu
authors.forename: Zong-ming
authors.initials: ZM
authors.lastname: Luo
authors.forename: Chi
authors.initials: C
authors.lastname: Yang
authors.forename: Yan-xiong
authors.initials: YX
authors.lastname: Fang
authors.forename: Kun
authors.initials: K
authors.lastname: Zhang
authors.forename: Xian-yi
authors.initials: XY
authors.lastname: Cao
mesh_terms: D002227:Carbazoles / Q000737:chemistry; D002384:Catalysis; D004563:Electrochemistry / Q000379:methods; D005290:Ferric Compounds / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D006842:Hydrocarbons, Brominated / Q000737:chemistry; D007501:Iron / Q000737:chemistry; D008956:Models, Chemical; D015394:Molecular Structure; D013055:Spectrophotometry, Infrared / Q000379:methods; D013056:Spectrophotometry, Ultraviolet / Q000379:methods; D013804:Thenoyltrifluoroacetone / Q000737:chemistry*; D014961:X-Ray Diffraction
chemical_list: D002227:Carbazoles; D005290:Ferric Compounds; D006842:Hydrocarbons, Brominated; C041514:carbazole; D013804:Thenoyltrifluoroacetone; D007501:Iron; C050754:1,4-dibromobutane