{"title":"展示囊泡结构和聚集诱导发射的芘系结自组装超分子体系:合成、组装研究和形态","authors":"Rajinder Kaur, Ramesh Kataria, Surbhi Sharma","doi":"10.1007/s12039-024-02316-z","DOIUrl":null,"url":null,"abstract":"<div><p>The emergence of aggregation-induced emission luminogens (AIEgens) has significantly stimulated the development of luminescent supramolecular materials because of their strong emissions in the aggregated state. With this inspiration, pyrene tethered Schiff base molecule, namely (Z)-1-(2,4-dinitrophenyl)-2-(pyren-1-ylmethylene), hydrazine was designed and successfully synthesized and well characterized by using proton (<sup>1</sup>H NMR), Fourier–transform infrared (FT-IR), and electron ionization mass spectrometry (EI-MS). UV-visible absorption and emission studies have been employed to elucidate self-assembled and aggregation properties. It is shown that monomers of synthesized compounds can exhibit emission driven by assembly by forming an H-aggregate, which corresponds to its blue shift tuning to the visible region associated with the extended <i>π</i>-conjugation. Furthermore, to have a more profound understanding of the supramolecular assembly, TEM and confocal microscopy were utilized to verify the aggregate morphology. In both investigations, monomer aggregation into a vesicular structure with monodispersed PDI is preferred.</p><h3>Graphical abstract</h3><p>Pyrene tethered Schiff base molecule, namely (Z)-1-(2,4-dinitrophenyl)-2-(pyren-1-ylmethylene), hydrazine was designed and successfully synthesized. Monomer <b>1</b> demonstrating aggregation-induced emission upon increasing the gradual amount of H<sub>2</sub>O in DMF solution of compound 1 (DMF/H<sub>2</sub>O, 30/70 (v/v). Pictorial representation is also pasted along with TEM and confocal results of aggregate or supramolecular structures of synthesised compound.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"136 4","pages":""},"PeriodicalIF":1.7000,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Pyrene-tethered self-assembled supramolecular system demonstrating vesicular structures and aggregation-induced emission: synthesis, assembled studies and morphology\",\"authors\":\"Rajinder Kaur, Ramesh Kataria, Surbhi Sharma\",\"doi\":\"10.1007/s12039-024-02316-z\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The emergence of aggregation-induced emission luminogens (AIEgens) has significantly stimulated the development of luminescent supramolecular materials because of their strong emissions in the aggregated state. With this inspiration, pyrene tethered Schiff base molecule, namely (Z)-1-(2,4-dinitrophenyl)-2-(pyren-1-ylmethylene), hydrazine was designed and successfully synthesized and well characterized by using proton (<sup>1</sup>H NMR), Fourier–transform infrared (FT-IR), and electron ionization mass spectrometry (EI-MS). UV-visible absorption and emission studies have been employed to elucidate self-assembled and aggregation properties. It is shown that monomers of synthesized compounds can exhibit emission driven by assembly by forming an H-aggregate, which corresponds to its blue shift tuning to the visible region associated with the extended <i>π</i>-conjugation. Furthermore, to have a more profound understanding of the supramolecular assembly, TEM and confocal microscopy were utilized to verify the aggregate morphology. In both investigations, monomer aggregation into a vesicular structure with monodispersed PDI is preferred.</p><h3>Graphical abstract</h3><p>Pyrene tethered Schiff base molecule, namely (Z)-1-(2,4-dinitrophenyl)-2-(pyren-1-ylmethylene), hydrazine was designed and successfully synthesized. Monomer <b>1</b> demonstrating aggregation-induced emission upon increasing the gradual amount of H<sub>2</sub>O in DMF solution of compound 1 (DMF/H<sub>2</sub>O, 30/70 (v/v). Pictorial representation is also pasted along with TEM and confocal results of aggregate or supramolecular structures of synthesised compound.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>\",\"PeriodicalId\":616,\"journal\":{\"name\":\"Journal of Chemical Sciences\",\"volume\":\"136 4\",\"pages\":\"\"},\"PeriodicalIF\":1.7000,\"publicationDate\":\"2024-12-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Chemical Sciences\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s12039-024-02316-z\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Chemical Sciences","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s12039-024-02316-z","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Pyrene-tethered self-assembled supramolecular system demonstrating vesicular structures and aggregation-induced emission: synthesis, assembled studies and morphology
The emergence of aggregation-induced emission luminogens (AIEgens) has significantly stimulated the development of luminescent supramolecular materials because of their strong emissions in the aggregated state. With this inspiration, pyrene tethered Schiff base molecule, namely (Z)-1-(2,4-dinitrophenyl)-2-(pyren-1-ylmethylene), hydrazine was designed and successfully synthesized and well characterized by using proton (1H NMR), Fourier–transform infrared (FT-IR), and electron ionization mass spectrometry (EI-MS). UV-visible absorption and emission studies have been employed to elucidate self-assembled and aggregation properties. It is shown that monomers of synthesized compounds can exhibit emission driven by assembly by forming an H-aggregate, which corresponds to its blue shift tuning to the visible region associated with the extended π-conjugation. Furthermore, to have a more profound understanding of the supramolecular assembly, TEM and confocal microscopy were utilized to verify the aggregate morphology. In both investigations, monomer aggregation into a vesicular structure with monodispersed PDI is preferred.
Graphical abstract
Pyrene tethered Schiff base molecule, namely (Z)-1-(2,4-dinitrophenyl)-2-(pyren-1-ylmethylene), hydrazine was designed and successfully synthesized. Monomer 1 demonstrating aggregation-induced emission upon increasing the gradual amount of H2O in DMF solution of compound 1 (DMF/H2O, 30/70 (v/v). Pictorial representation is also pasted along with TEM and confocal results of aggregate or supramolecular structures of synthesised compound.
期刊介绍:
Journal of Chemical Sciences is a monthly journal published by the Indian Academy of Sciences. It formed part of the original Proceedings of the Indian Academy of Sciences – Part A, started by the Nobel Laureate Prof C V Raman in 1934, that was split in 1978 into three separate journals. It was renamed as Journal of Chemical Sciences in 2004. The journal publishes original research articles and rapid communications, covering all areas of chemical sciences. A significant feature of the journal is its special issues, brought out from time to time, devoted to conference symposia/proceedings in frontier areas of the subject, held not only in India but also in other countries.