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":803,"journal":{"name":"Transition Metal Chemistry","volume":"48 6","pages":"377 - 387"},"PeriodicalIF":1.6000,"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\":803,\"journal\":{\"name\":\"Transition Metal Chemistry\",\"volume\":\"48 6\",\"pages\":\"377 - 387\"},\"PeriodicalIF\":1.6000,\"publicationDate\":\"2023-08-16\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Transition Metal Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s11243-023-00550-x\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, INORGANIC & NUCLEAR\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Transition Metal Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1007/s11243-023-00550-x","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, INORGANIC & NUCLEAR","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.
期刊介绍：
Transition Metal Chemistry is an international journal designed to deal with all aspects of the subject embodied in the title: the preparation of transition metal-based molecular compounds of all kinds (including complexes of the Group 12 elements), their structural, physical, kinetic, catalytic and biological properties, their use in chemical synthesis as well as their application in the widest context, their role in naturally occurring systems etc.
Manuscripts submitted to the journal should be of broad appeal to the readership and for this reason, papers which are confined to more specialised studies such as the measurement of solution phase equilibria or thermal decomposition studies, or papers which include extensive material on f-block elements, or papers dealing with non-molecular materials, will not normally be considered for publication. Work describing new ligands or coordination geometries must provide sufficient evidence for the confident assignment of structural formulae; this will usually take the form of one or more X-ray crystal structures.
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