{"title":"诱导近红外吸收球形钌络合物的轴向手性","authors":"Yoshitaka Shinokubo , Ryo Arai , Tatsuya Nishimura , Katsuhiro Maeda , Hajime Maeda , Masahito Segi , Taniyuki Furuyama","doi":"10.1016/j.jphotochem.2024.116089","DOIUrl":null,"url":null,"abstract":"<div><div>Ball-shaped metal complexes that absorb in the near-infrared (NIR) region can be synthesized in a single step. Although stereogenic-at-metal complexes have been obtained, the induction of axial chirality has not yet been demonstrated. In this study, NIR-absorbing ball-shaped ruthenium complexes with axial chirality were facilely synthesized using asymmetric diiminoisoindoline derivatives. Despite lacking a discrete point chiral moiety, these complexes exhibited molecular chirality. The incorporation of bulky substituents facilitated enantiomeric differentiation. High-performance liquid chromatography (HPLC) with a chiral column enabled the isolation of the pure enantiomers as stable compounds. The absolute configurations of these isomers were revealed using vibrational circular dichroism (VCD) spectroscopy. The characteristic peaks originating from ligand vibrations exhibited distinct mirror images, and the experimental spectra were well reproduced by theoretical calculations. This methodology has broad applicability for the development of chiral ball-shaped metal complexes as NIR materials.</div></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":null,"pages":null},"PeriodicalIF":4.1000,"publicationDate":"2024-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Induced of axial chirality in near-infrared-absorbing ball-shaped ruthenium complexes\",\"authors\":\"Yoshitaka Shinokubo , Ryo Arai , Tatsuya Nishimura , Katsuhiro Maeda , Hajime Maeda , Masahito Segi , Taniyuki Furuyama\",\"doi\":\"10.1016/j.jphotochem.2024.116089\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Ball-shaped metal complexes that absorb in the near-infrared (NIR) region can be synthesized in a single step. Although stereogenic-at-metal complexes have been obtained, the induction of axial chirality has not yet been demonstrated. In this study, NIR-absorbing ball-shaped ruthenium complexes with axial chirality were facilely synthesized using asymmetric diiminoisoindoline derivatives. Despite lacking a discrete point chiral moiety, these complexes exhibited molecular chirality. The incorporation of bulky substituents facilitated enantiomeric differentiation. High-performance liquid chromatography (HPLC) with a chiral column enabled the isolation of the pure enantiomers as stable compounds. The absolute configurations of these isomers were revealed using vibrational circular dichroism (VCD) spectroscopy. The characteristic peaks originating from ligand vibrations exhibited distinct mirror images, and the experimental spectra were well reproduced by theoretical calculations. This methodology has broad applicability for the development of chiral ball-shaped metal complexes as NIR materials.</div></div>\",\"PeriodicalId\":16782,\"journal\":{\"name\":\"Journal of Photochemistry and Photobiology A-chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2024-10-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Photochemistry and Photobiology A-chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1010603024006336\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Photochemistry and Photobiology A-chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1010603024006336","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
Induced of axial chirality in near-infrared-absorbing ball-shaped ruthenium complexes
Ball-shaped metal complexes that absorb in the near-infrared (NIR) region can be synthesized in a single step. Although stereogenic-at-metal complexes have been obtained, the induction of axial chirality has not yet been demonstrated. In this study, NIR-absorbing ball-shaped ruthenium complexes with axial chirality were facilely synthesized using asymmetric diiminoisoindoline derivatives. Despite lacking a discrete point chiral moiety, these complexes exhibited molecular chirality. The incorporation of bulky substituents facilitated enantiomeric differentiation. High-performance liquid chromatography (HPLC) with a chiral column enabled the isolation of the pure enantiomers as stable compounds. The absolute configurations of these isomers were revealed using vibrational circular dichroism (VCD) spectroscopy. The characteristic peaks originating from ligand vibrations exhibited distinct mirror images, and the experimental spectra were well reproduced by theoretical calculations. This methodology has broad applicability for the development of chiral ball-shaped metal complexes as NIR materials.
期刊介绍:
JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds.
All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor).
The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.