Synthesis and Spectroscopic Properties od Derivatives of

• Main Authors: Chen, Shiow-Lan, 陳秀蘭
• Other Authors: Thou-Jen Whang
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/82039441401735617590

碩士 === 國立成功大學 === 化學系 === 84 === Dyes reported in literature are widely used in clothings, papers, cosmetics, foods... etc, and they are also used as laser dyes. It is worthy to develop and study new laser dyes. In this study, we tried to measure the properties of absorption spectrum and fluorescence spectrum of known organic compounds and new synthesized xanthene derivatives, TIHF、 3,6-dihydroxyxanthane、TIHF-OK、 TIHF-OAc、TBHF-OK and TBHF-OAc. Furthermore, we also measured the laser-induced fluorescence (LIF) of 3,6-dihydroxyxanthane TBHF、TIHF-OK and TBHF-OK by using Nd-YAG laser as excitation source. The properties of absorption and fluorescence spectra of xanthene dye derivatives will change with different solvents. The structure of dye compounds in H2SO4- DMSO (1:1) solution above 0.1 N concentration is changed. Besides, the fluorescence properties of derivatives disappear in two solvents disappear. one solvent is 2N H2SO4-DMSO (1:1). The other solvent is 0.5 N NaOH-DMSO (1:1). The experimental results from the synthesis of xanthene dye derivative, TIHF-OK、TBHF-OK、3,6-dihydroxyxanthene and TIHF, suggest that these derivatives are not so good as laser dyes due to lack of significant fluorescence properties.