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官能化2-(2’-胺基苯基)苯駢噻唑之合成鑑定及光學特性探討
Date Issued
2016
Author(s)
劉俊騏
Jiun-Chi Liu
Advisor
劉冠妙
Abstract
我們設計合成出一系列以2-(2’-胺基苯基)苯駢噻唑(2-(2’-aminophenyl)- benzothiazole)為主體發光團的N-H型分子內氫鍵系統化合物並研究其光物理性質,藉由取代胺基其中一個H為強拉電子基團(Ts)、弱拉電子基團(Ac)及推電子基團(Me),並於苯胺對位上引入推/拉電子基團(此類化合物簡稱para-benzothiazole),利用上述手段來改變R-N(R)-H中H的酸性,觀察這些化合物的光物理性質以及取代基對於此類化合物ESIPT的效應。如圖一所示,我們合成出一系列化合物,搭配熱力學及動力學量測進而描繪出這些化合物在ESIPT反應時可能的勢能曲線,可以歸納出,經由不同的結構衍生,可以使得這類化合物進行不同速率的質子轉移,這個特色是-OH型分子中不會發生的現象。 接著,我們更繼續嘗試合成苯胺間位取代的化合物(此類化合物簡稱meta-benzothiazole),合成方式與對位取代者完全不同,目前所有目標產物已接近完成,我們亦將對這一系列化合物進行光物理性質的量測,並與對位化合物進行比較。
A new series of amino-type hydrogen-bonding compounds comprising 2-(2’-aminophenyl)benzothiazoles and its extensive derivatives were designed and synthesized. Unlike in the hydroxyl-type H-bonding systems, one of the amino hydrogens can be replaced with electrondonating/withdrawing groups. This, together with a versatile capability for modifying the parent moiety, makes feasible the comprehensive spectroscopy and dynamics studies of amino-type ESIPT, which was previously inaccessible in the hydroxyl-type ESIPT systems.Now, we have already synthesized meta site 2-(2’-aminophenyl) benzothiazole derivatives nearly complete then we will measure their photophysical properties and compare with para site derivatives.
Subjects
光物理性質
苯胺
benzothiazole
ESIPT
Type
thesis
File(s)
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Name
104CSMU5537008-001.pdf
Size
1.45 MB
Format
Adobe PDF
Checksum
(MD5):3ee2b935b765f3fac00745fd478828f5