文档介绍：华中科技大学
硕士学位论文
卟啉化合物样品制备及其太赫兹谱测试
姓名:刘红利
申请学位级别:硕士
专业:光学工程
指导教师:刘劲松
2011-05-20
华中科技大学硕士学位论文
摘要
太赫兹谱反映的是分子的集体振动以及晶格振动,是物质在远红外光区的指纹谱,
在化学领域具有广泛的应用前景。卟啉化合物在自然界中是除蛋白质和核酸碱基之外
的另一重要配体,在许多生命活动过程中具有重要的生理功能。测量卟啉化合物的太
赫兹光谱,有利于人们进一步的认识和应用这类化合物,也有助于将太赫兹光谱引入
化学和生命科学等领域。
本论文合成了六种卟啉化合物,其中的 TPP 分别以潘继刚和雷裕武的方法合成,
结果表明雷裕武的方法较好,产品纯度高,容易除去杂质。然后又以雷裕武的方法合
成了 TPPZn、TPPCu 和 TNPP,并采用传统方法合成了 THPP 和 TPPMn,对这些卟啉
化合物分别采用了柱色谱和重结晶法进行了分离提纯。分别用紫外-可见光谱和红外光
谱对六种卟啉化合物样品进行了表征,经过与文献对比均为目标产物。
利用太赫兹时域光谱技术以低密度聚乙烯掺杂和以光谱纯 KBr 掺杂两种方法测量
了六种卟啉化合物的太赫兹谱。低密度聚乙烯与卟啉化合物混合均匀后熔融形成薄片,
光谱纯 KBr 与卟啉化合物混合均匀后利用模具压成薄片。结果表明:太赫兹吸收谱和
透过率光谱均能够区分六种卟啉化合物,并且六种卟啉化合物在太赫兹吸收谱上均有
各自的特征吸收峰;六种卟啉化合物的太赫兹吸收谱比透过率谱的区分度高。

关键词:太赫兹卟啉化合物制备吸收谱测量

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华中科技大学硕士学位论文
Abstact
Terahertz spectrum is the fingerprint spectra of material in the Far-infrared light district,
which reflected the molecular collective vibration and lattice vibration, and it has a broad
prospect in chemistry. Porphyrins are important ligands other than protein and nucleic acid
bases in nature, which are very important in many life activity spectrum of
porphyrins will help people to know and apply porphyrins further, and it also help to use
terahertz technology in chemistry and life science, etc.
Six porphyrins were synthesised, and the TPP was synthesised by the method of Pan
Jigang and the method of Lei Yuwu respectively, and it show that the method of Lei Yuwu is
better, the product has high purity, and it’s very easy to remove impurities. Then TPPZn、
TPPCu and TNPP were synthesised by the method of Lei Yuwu, THPP and TPPMn were
synthesised by the traditional method. The structure of the six porphyrins was identified by
UV and IR.
Terahertz spectrum of the six porphyrins obtained with terahertz time-domain spectra
technology by the method of low density polyethylene doping and the method of spectrum
pure of KBr doping. The flake was obtained by meltdown the mixture of low density
polyethy