Studies on piezochromic photochromic (E)-5-dicyanomethylene-3-[1-(2,5-dimethyl-3-furyl)ethylidene]-4-diphenylme thylenetetrahydrofuran-2-one and related photochromic compounds

Asiri AMA.; Heller HG.; Cleeves A.

首页> 外文期刊>Journal of the Chemical Society, Perkin Transactions 1 >Studies on piezochromic photochromic (E)-5-dicyanomethylene-3-[1-(2,5-dimethyl-3-furyl)ethylidene]-4-diphenylme thylenetetrahydrofuran-2-one and related photochromic compounds

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Studies on piezochromic photochromic (E)-5-dicyanomethylene-3-[1-(2,5-dimethyl-3-furyl)ethylidene]-4-diphenylme thylenetetrahydrofuran-2-one and related photochromic compounds

机译：压电致变色光致变色（E）-5-二氰基亚甲基-3- [1-（2,5-二甲基-3-呋喃基）亚乙基] -4-二苯基亚甲基四氢呋喃-2-酮及相关光致变色化合物的研究

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Yellow crystals of the title compound 2b gave a dark red powder on mechanical grinding. The yellow and red solids turned deep blue on irradiation (366 nm) and the red and blue solids turned yellow on exposure to white light. The yellow crystals gave a deep red solution in toluene, which turned blue on irradiation with ultraviolet light. The blue solution reverted to red on exposure to white light. The chemistry of these colour changes is discussed. Related photochromic compounds 2a, 2c, 2d, 4a, 4b, 7a and 7, with a lesser degree of molecular overcrowding, are not piezochromic. The related non photochromic compound 1, with the greatest degree of overcrowding, is tribochromic. [References: 22]

机译：标题化合物2b的黄色晶体通过机械研磨得到深红色粉末。黄色和红色固体在照射（366 nm）时变成深蓝色，而红色和蓝色固体在暴露于白光时变成黄色。黄色晶体产生深红色甲苯溶液，在紫外线照射下变成蓝色。暴露在白光下，蓝色溶液恢复为红色。讨论了这些颜色变化的化学作用。相关的光致变色化合物2a，2c，2d，4a，4b，7a和7的分子过度拥挤程度较小，不是压电致变色的。过度拥挤程度最大的相关非光致变色化合物1是摩擦致变色的。 [参考：22]

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《Journal of the Chemical Society, Perkin Transactions 1》 |2000年第16期|共4页
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Asiri AMA.; Heller HG.; Cleeves A.;
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1. Studies on piezochromic photochromic (E)-5-dicyanomethylene-3-[1-(2,5-dimethyl-3-furyl)ethylidene]-4-diphenylme thylenetetrahydrofuran-2-one and related photochromic compounds [J] . Asiri AMA., Heller HG., Cleeves A. Journal of the Chemical Society, Perkin Transactions 1 . 2000,第16期

机译：压电致变色光致变色（E）-5-二氰基亚甲基-3- [1-（2,5-二甲基-3-呋喃基）亚乙基] -4-二苯基亚甲基四氢呋喃-2-酮及相关光致变色化合物的研究
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Studies on piezochromic photochromic (E)-5-dicyanomethylene-3-[1-(2,5-dimethyl-3-furyl)ethylidene]-4-diphenylme thylenetetrahydrofuran-2-one and related photochromic compounds

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