Md. Mostafizur Rahman, Tanjila Islam, Md. Amran-Al-Taz Khan, Muhammad Younus, Dababrata Paul, Md. Sajib Joardar, Akiya Ogawa
{"title":"新型对苯硫基官能化铂（II）双（烯基芳基）配合物的合成、光谱表征和光物理性质","authors":"Md. Mostafizur Rahman, Tanjila Islam, Md. Amran-Al-Taz Khan, Muhammad Younus, Dababrata Paul, Md. Sajib Joardar, Akiya Ogawa","doi":"10.1007/s11243-023-00550-x","DOIUrl":null,"url":null,"abstract":"<div><p>A series of organic sulfur-functionalized <i>trans</i>-platinum(II) bis(alkenylarylalkynyl) complexes, having one anisolylthio group with general formula <i>trans</i>-[(PEt<sub>3</sub>)<sub>2</sub>Pt{C≡C–Ar–CH=CH(SC<sub>6</sub>H<sub>4</sub>–OCH<sub>3</sub>)}<sub>2</sub>], <b>(2a-2d)</b>, (Ar = phenylene/biphenylene/2,5-dimethylphenylene/2,5-dimethoxyphenylene) was synthesized in excellent yields. All the new platinum(II) complexes have been fully characterized by physico-chemical and spectroscopic methods. Photophysical properties of the complexes were studied by absorption and emission spectroscopy. The lowest energy absorption band for the complexes, in the UV/Vis spectra, in THF solution, at room temperature, <b>2a-2d</b> was observed in the range 355–391 nm, which depend on the spacers in the acetylide ligand e.g., the absorption of 2d is red shifted to 391 nm for the donor (OCH<sub>3</sub>) substituents in phenyl spacer. These absorptions originated predominantly from π–π*orbitals of acetylide ligand with significant contribution from the platinum dπ orbital as evident from the HOMO and LUMO, obtained from TD-DFT calculations. Fluorescence was observed in all complexes at room temperature in the range 400–428 nm with PLQY of 2–5%. At 77 k, the complexes <b>2a-2b</b> only exhibited phosphorescence in the range 579–585 nm, but there is no phosphorescence at ambient temperature.</p><h3>Graphical abstract</h3>\n <div><figure><div><div><picture><img></picture></div></div></figure></div>\n </div>","PeriodicalId":1,"journal":{"name":"Accounts of Chemical Research","volume":null,"pages":null},"PeriodicalIF":16.4000,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis, spectroscopic characterization, and photophysical properties of new p-anisolylthiol-functionalized platinum(II) bis(alkenylarylalkynyl) complexes\",\"authors\":\"Md. Mostafizur Rahman, Tanjila Islam, Md. Amran-Al-Taz Khan, Muhammad Younus, Dababrata Paul, Md. Sajib Joardar, Akiya Ogawa\",\"doi\":\"10.1007/s11243-023-00550-x\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>A series of organic sulfur-functionalized <i>trans</i>-platinum(II) bis(alkenylarylalkynyl) complexes, having one anisolylthio group with general formula <i>trans</i>-[(PEt<sub>3</sub>)<sub>2</sub>Pt{C≡C–Ar–CH=CH(SC<sub>6</sub>H<sub>4</sub>–OCH<sub>3</sub>)}<sub>2</sub>], <b>(2a-2d)</b>, (Ar = phenylene/biphenylene/2,5-dimethylphenylene/2,5-dimethoxyphenylene) was synthesized in excellent yields. All the new platinum(II) complexes have been fully characterized by physico-chemical and spectroscopic methods. Photophysical properties of the complexes were studied by absorption and emission spectroscopy. The lowest energy absorption band for the complexes, in the UV/Vis spectra, in THF solution, at room temperature, <b>2a-2d</b> was observed in the range 355–391 nm, which depend on the spacers in the acetylide ligand e.g., the absorption of 2d is red shifted to 391 nm for the donor (OCH<sub>3</sub>) substituents in phenyl spacer. These absorptions originated predominantly from π–π*orbitals of acetylide ligand with significant contribution from the platinum dπ orbital as evident from the HOMO and LUMO, obtained from TD-DFT calculations. Fluorescence was observed in all complexes at room temperature in the range 400–428 nm with PLQY of 2–5%. At 77 k, the complexes <b>2a-2b</b> only exhibited phosphorescence in the range 579–585 nm, but there is no phosphorescence at ambient temperature.</p><h3>Graphical abstract</h3>\\n <div><figure><div><div><picture><img></picture></div></div></figure></div>\\n </div>\",\"PeriodicalId\":1,\"journal\":{\"name\":\"Accounts of Chemical Research\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":16.4000,\"publicationDate\":\"2023-08-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Accounts of Chemical Research\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11243-023-00550-x\",\"RegionNum\":1,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Accounts of Chemical Research","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11243-023-00550-x","RegionNum":1,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Synthesis, spectroscopic characterization, and photophysical properties of new p-anisolylthiol-functionalized platinum(II) bis(alkenylarylalkynyl) complexes
A series of organic sulfur-functionalized trans-platinum(II) bis(alkenylarylalkynyl) complexes, having one anisolylthio group with general formula trans-[(PEt3)2Pt{C≡C–Ar–CH=CH(SC6H4–OCH3)}2], (2a-2d), (Ar = phenylene/biphenylene/2,5-dimethylphenylene/2,5-dimethoxyphenylene) was synthesized in excellent yields. All the new platinum(II) complexes have been fully characterized by physico-chemical and spectroscopic methods. Photophysical properties of the complexes were studied by absorption and emission spectroscopy. The lowest energy absorption band for the complexes, in the UV/Vis spectra, in THF solution, at room temperature, 2a-2d was observed in the range 355–391 nm, which depend on the spacers in the acetylide ligand e.g., the absorption of 2d is red shifted to 391 nm for the donor (OCH3) substituents in phenyl spacer. These absorptions originated predominantly from π–π*orbitals of acetylide ligand with significant contribution from the platinum dπ orbital as evident from the HOMO and LUMO, obtained from TD-DFT calculations. Fluorescence was observed in all complexes at room temperature in the range 400–428 nm with PLQY of 2–5%. At 77 k, the complexes 2a-2b only exhibited phosphorescence in the range 579–585 nm, but there is no phosphorescence at ambient temperature.
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Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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