| 引用本文: | 周家茵,綦尤训,周世光,等.镧系配合物热致变色性能的研究(III).[J].国防科技大学学报,1990,12(1):116-120.[点击复制] |
| Zhou Jiayin,Qi Youxun,Zhou Shiguang,et al.Studies on Thermochromic Properties of the Lanthanide Chelates (Ⅲ)[J].Journal of National University of Defense Technology,1990,12(1):116-120[点击复制] |
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| 镧系配合物热致变色性能的研究(III) |
| 周家茵1, 綦尤训1, 周世光1, 王秀华2 |
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(1.国防科技大学;2.石家庄陆军学院)
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| 摘要: |
| 甲基百里酚兰(MTB) 与二甲酚橙 (XO) 同属三苯甲烷系列，它们与一些二价过渡金属离子形成螯合物水溶液热致变色作用已有研究[1,2]；但MTB与三价镧系离子(Ln3+)形成螯合物的热致变色作用的研究国内外还未见报导。本文在研究(除Pm 外) 14 种镧系离子 (Ln3+)与二甲酚橙 (XO) 形成螯合物热致变色性能的基础上[3,4]，进一步用分光光度法及逐步升温的目测法研究了MTB与Ln(Ⅲ)生成Ln(Ⅲ)-MTB 螯合物水溶液的热致变色规律，探讨了介质酸度、温度对该体系热致变色作用的影响。研究结果表明，其热致变色机理与 Ln(Ⅲ)-XO体系类似[4]。本文是为研制稀土示温材料所进行的基础研究工作之一部分。 |
| 关键词: 镧系元素，甲基百里酚兰，热致变色 |
| DOI： |
| 投稿日期：1988-04-20 |
| 基金项目: |
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| Studies on Thermochromic Properties of the Lanthanide Chelates (Ⅲ) |
| Zhou Jiayin1, Qi Youxun1, Zhou Shiguang1, Wang Xiuhua2 |
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(1.National University of Defense Technology;2.Shijiazhuang Army Institute)
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| Abstract: |
| Reversible thermochromism in the aqueous solutions of Ln(III)=MTB chelates (Ln=14 kinds of lanthanide elements except Pm; MTB=Methylthymol blue，i. e. ，3'，3"-Bis-[N，N-(dicarboxymethyl) aminomethyl] thymolsulfonphthalein)
have been investigated by spectrophotometry. The resu1ts indicated the effect of acidities and temperatures on the colors and electron spectrum of the cited systems. The results also show that the thermochromic mechanism is similar to that of the Ln(III)-Xo(Xylenol Orange) chelates systems. This is a part of the fundamental studies for developing rare earth temperature-indicating materials. |
| Keywords: Lanthanide,methylthymol blue,thermochromism |
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