Two piezochromic molecules, (2Z,4E)-2-(4-(Diphenylamino)phenyl)-5-phenylpenta-2,4-dienenitrile (1a) and (2Z,4E)-2-(4-(acridin-10(9H)-yl)phenyl)-5-phenylpenta-2,4-dienenitrile (1b), were synthesized by using Knoevenagel and Buchwald-Hartwig cross-coupling reactions. Their piezochromic fluorescence behavior was tuned by subtle structural change. The system indicates typical intramolecular charge-transfer properties. The luminescence intensity of 1a decreased with increasing pressure with the redshift of the emission wavelength when the hydrostatic pressure in a diamond anvil cell (DAC) was applied on its crystal. However, the emission wavelength of 1b which has a methylene unit more than 1a had no obvious shift and the intensity increased gradually at the pressure range from 0.66 GPa to 5.72 GPa.

Tao Man

Nian-Sheng Xu

Zhen-Hai Yu

Yong Huo

Ye Yuan

Zi-Fa Shi

Xiao-Ping Cao

Lin Wang

Hao-Li Zhang

Dyes and Pigments

染料和颜料涵盖染料、颜料及其中间体的化学和物理的科学和技术方面。重点放在着色物质本身的特性上，而不是它们的应用或它们可能应用的系统上。因此，该杂志接受关于染料、颜料和中间体的合成及其物理或化学特性的研究和评论论文，例如光谱、表面、溶液或固态特性，其制备的物理方面，例如沉淀，成核和生长，晶体形成，液晶特性，它们的光化学，生态或生物学特性以及颜色和化学成分之间的关​​系。但是，考虑的论文涉及着色剂应用的更基本方面以及着色剂与基材或介质的相互作用。该杂志将对涉及染料、颜料及其中间体的一系列学科的广泛工作者感兴趣，并为具有共同兴趣但活动领域多样化的研究人员提供一个平台，如化妆品、复印、染料和颜料合成、医学研究、聚合物等。

The journal "Dyes and Pigments" covers the chemical and physical sciences and technologies of dyes, pigments, and their intermediates. It focuses on the characteristics of the coloring substances themselves rather than their applications or the systems in which they may be applied. Therefore, the journal accepts research and review papers on the synthesis of dyes, pigments, and intermediates, as well as their physical or chemical properties, such as spectral, surface, solution, or solid-state characteristics, and the physical aspects of their preparation, including precipitation, nucleation and growth, crystal formation, liquid crystal properties, photochemical, ecological, or biological characteristics, and the relationship between color and chemical composition. Furthermore, the papers considered also address the more fundamental aspects of the applications of colorants and the interactions between colorants and substrates or media. The journal "Dyes and Pigments" is interested in a wide range of workers in various disciplines related to dyes, pigments, and their intermediates, providing a platform for researchers with shared interests but diverse fields of activity, such as cosmetics, photocopying, dye and pigment synthesis, medical research, and polymers.

《Dyes and Pigments》期刊涵盖了染料、颜料及其前体的化学和物理科学技术。重点关注着色物质本身的特性，而非其应用或潜在应用的系统。因此，该杂志接受关于染料、颜料及其前体的合成及其物理或化学特性的研究和评论论文。这些特性包括光谱、表面、溶液或固态特性，以及制备过程中的物理现象，如沉淀、成核与生长、晶体形成、液晶特性、光化学、生态或生物学特性，以及颜色与化学成分之间的关系。此外，考虑的论文也涉及着色剂应用的基本方面，以及着色剂与基材或介质之间的相互作用。《Dyes and Pigments》期刊对涉及染料、颜料及其前体的多个学科的广泛研究者感兴趣，并为具有共同兴趣但活动领域多样化的研究人员提供一个交流平台，涵盖化妆品、复印、染料和颜料合成、医学研究、聚合物等领域。

Category	Quartile
工程技术	3
工程技术, 材料科学纺织	1
工程技术, 应用化学	2
工程技术, 工程化工	3

Modulation of piezochromic fluorescence behavior by subtle structural change

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Journal Info

Category	Quartile
MATERIALS SCIENCE, TEXTILES	1