稀土（Nd，Pr）（Ⅲ）双酞菁衍生物的合成、表征和气敏特性

Preparation of Rare-Earth (Nd, Pr) (Ⅲ) Bisphthalocyanine Derivatives and NH_3-Sensibility of Their LB Films

合成了八－４－（四氢糠氧基）酞菁钕（Ⅲ）（Ａ）、八－４－（β－萘氧基）酞菁钕（Ⅲ）（Ｂ）、八－４－（２，４－二叔戊基苯氧基）酞菁钕（Ⅲ）（Ｃ）和八－４－（２，４－二叔戊基苯氧基）酞菁镨（Ⅲ）（Ｄ）４种新的稀土（Ｎｄ、Ｐｒ）（Ⅲ）双酞菁衍生物，经元素分析、红外光谱、核磁共振谱表征．紫外可见光谱表明，它们在氯仿（１０￣（－６）ｍｏｌ／Ｌ）溶液中以单分子形式存在．热重分析证明配合物的热稳定性：Ｂ＞Ｃ～Ｄ＞Ａ．４种配合物成膜性好，Ｚ型沉积形成的单层ＬＢ膜材料对氨气有响应，特别是八－４－（四氢糠氧基）酞菁钕（Ⅲ）的膜材料对氨气很敏感，可与铜酞菁ＬＢ膜气敏性相比．

In this paper, Nd(Ⅲ) -octa-4-(tetrahydrofurfuroxy) phthalocyanine (A), Nd(Ⅲ)-octa-4-(β-naphthoxy)phthalocyanine (B), Nd(Ⅲ)-octa-4-(2,4-di-t-pentylphenoxy) phthalocyanine (C) and Pr(Ⅲ)-octa-4-(2, 4-di-t-pentylphenoxy) phthalocyanine(D) were synthesized and characterized by elementary analysis, IR, ￣1H NMR, UV-Vis spectra. It is indicated that most of them were monomeric molecules in CHCl_3 solution. The thermostability order was B >C～D>A. Four kinds of compounds have good film-forming ability.The LB films of AD deposited on gold comb electrode by the LB techniques according to the Z-type. The gassensibility of LB films was determined. The results showed that the films have good sensibility and selectivity for the vapor of NH_3. And then the Nd(Ⅲ)-octa-4-(tetrahydrofurfuroxy) phthalocyanine(A) has the best gas-sensibility for the vapor of NH_3 comparable with copper (Ⅱ) phthalocyanine.