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Design and Synthesis of Photofunctional Organic and Inorganic Composite Crystals

光功能有机无机复合晶体的设计与合成

基本信息

批准号：
09450323
负责人：
TAKAGI Katsuhiko
金额：
$ 8.77万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1999
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-09450323/
关键词：
montomorrilonite clay spirooxadine dyes photochromic nature イオン性フルギド色素インターカレーションカチオン交換粘土粘土・複合材料 z軸光異方性超分子構造コンフォメーション測定モンモリロナイト粘土有機-粘土複合体ケイ酸ガラスマトリックスイオン交換容量ゾル-ゲル法分子配向ラウリルピリジニウムクロライド

项目摘要

Montmorrilonite clay minerals accommodate various organic cation guests in their interlayers by means of electrostatic interactions. In this project we attempted an intercalation of spirooxadine dyes (SPO) into zinc (II) ion exchanged montmorrilonite clay by complex formation of the Zn cation with phenolic oxygen of SPO dyes to study their photochromic properties.Experiments. Hydrophobic montmorrilonite intercalated hexytrimethylammonium ions was treated with a mixture of SPO (50mol%) and zinc chloride (500mol%) with stirring for 40hrs at room temperature. The resulting composite materials were irradiated with UV light between 300-400nm.The results and Discussion. The intercalated composite was observed to be absorbed in a form of colored open structure, which is stable under dark condition for several days. However, irradiation of this open form with 450nm light gradually changes into the corresponding closed form. Though SPO is irradiated by UV light during the intercalation procedures, adsorption degree was little affected by the length of irradiation periods. In addition, the zinc complex of SPO is holded tight in clay, and so the interaction of zinc and clay interlayers is quite strong.In conclusion, SPO dyes is efficiently intercalated in montmorrilonite clay by complex formation and its photochromic nature was controlled by the complex formation.

蒙脱石粘土矿物通过静电相互作用在其层间容纳各种有机阳离子客体。本研究尝试将螺恶啶染料（spirooxadine dyes，SPO）嵌入到锌离子交换的蒙脱土中，通过SPO染料中的酚氧与锌离子形成络合物，研究SPO染料的光致变色性能。在室温下，用SPO（50mol%）和氯化锌（500mol%）的混合物在搅拌下处理疏水性蒙脱土插层己基三甲基铵离子40小时。用300- 400 nm的紫外光照射所得复合材料。观察到插层复合物以有色开放结构的形式被吸收，其在黑暗条件下稳定数天。然而，用450 nm光照射这种开放形式逐渐变成相应的封闭形式。在插层过程中，虽然用紫外光照射SPO，但照射时间的长短对SPO的吸附程度影响不大。此外，SPO的锌络合物被紧密地固定在粘土中，锌与粘土层间的相互作用很强，SPO染料通过络合物的形成有效地插层在蒙脱石粘土中，其光致变色性质受络合物的形成控制。