In 2022,Li, Xue-Lian; Wu, Dong-En; Qiao, Qiwei; Guo, Qing-Hui; Cai, Yu-Jie published an article in Journal of the Iranian Chemical Society. The title of the article was 《The isomeric effect on structure and photophysical property of organic fluorescent material: synthesis, structures, and photophysical properties of two novel D-π-π-A prototype fluorescent material》.Recommanded Product: 3,5-Dihydroxybenzaldehyde The author mentioned the following in the article:
Two novel D-π-π-A prototype organic fluorescent compounds, namely (E)-2-(3-([1,1′-biphenyl]-4-yl)-1-(naphthalen-2-yl)allylidene)malononitrile (3-BNM) and (E)-2-(1-([1,1′-biphenyl]-4-yl)-3-(naphthalen-2-yl)allylidene)malononitrile (1-BNM) were synthesized to examine the isomeric effect on their structures and photophys. properties. The results indicated that 3-BNM and 1-BNM display different crystal packing and optical properties, because of the differences in substitution position. 3-BNM mols. packed into a 2D layer structure, while a 2D layer structure was formed in 1-BNM. Compared to that of 1-BNM, red-shifted emissions were observed in the crystal and dilute solution of 3-BNM. The structure-property relationship of the two isomers showed that it is the differences in electronic structures that lead to their different emission behaviors. The obvious isomeric effect indicated that subtle manipulation of substitution position is indeed a feasible and efficient way for tuning the structures and photophys. properties of D-π-π-A prototype organic fluorescent materials. The experimental process involved the reaction of 3,5-Dihydroxybenzaldehyde(cas: 26153-38-8Recommanded Product: 3,5-Dihydroxybenzaldehyde)
3,5-Dihydroxybenzaldehyde(cas: 26153-38-8) is used as a building block in the synthesis of more complex structures. It is also used in the synthesis of terbutaline, which is an important bronchodilator.Recommanded Product: 3,5-Dihydroxybenzaldehyde
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts