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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 楊吉水(Jye-Shane Yang) | |
dc.contributor.author | Chen-Yu Lien | en |
dc.contributor.author | 連晨宇 | zh_TW |
dc.date.accessioned | 2021-07-10T21:53:29Z | - |
dc.date.available | 2021-07-10T21:53:29Z | - |
dc.date.copyright | 2019-08-22 | |
dc.date.issued | 2019 | |
dc.date.submitted | 2019-08-12 | |
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dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/77268 | - |
dc.description.abstract | 在先前的工作中,本實驗室將五苯荑炔基團引入環金屬鉑錯合物中,成功使分子在固態時具有力致以及蒸氣致變色放光。但是,由於較強的分子間π-π或是金屬-金屬作用力,其光色僅有黃至紅的變化。為了使放光藍移而增加顏色的對比,本研究中我們增加分子的立體障礙,期待分子間作用力能有更大程度的變化。我們合成兩個具有五苯荑以及叔丁基的目標鉑錯合物,以及一個不含五苯荑的錯合物作為對照。藉由輾磨或是薰上有機物蒸氣等操作,三個錯合物皆可產生類似於單體(monomer)的綠色放光以及激態雙體(excimer)導致的紅(或橘)色放光。而五苯荑基團可避免放光發生聚集引致淬熄(aggregation-caused quenching),並且使從溶液態初始製備的分子具有同質多形體(polymorph)。我們再次展現五苯荑衍生物在刺激響應材料的應用潛力,並且說明適當的立體障礙對於設計此類分子之重要性。 | zh_TW |
dc.description.abstract | In previous work, we have combined the pentiptycene-acetylene group and the N^C^N ligand to form a Pt(II) complex with mechanochromic and vapochromic luminescence in the solid state. However, the emission color only ranged from yellow to red, which was attributed to strong intermolecular π-π or metallophilic interactions. In order to achieve higher color contrast with more blue-shifted emission, here we enhanced the steric hindrance of the complexes to induce more drastic variation of intermolecular interactions. Two Pt(II) target complexes with the pentiptycene moiety and tert-butyl groups, and another pentiptycene-free reference complex were prepared. By operation such as grinding or vapor-fuming, all the complexes could exhibit monomer-like and excimer emission with color ranging from green to red (or orange). The pentiptycene scaffold effectively prevented the luminescence from aggregation-caused quenching and induced the formation of polymorphic as-prepared solids. In summary, we again demonstrated the potential of pentiptycene derivatives for stimuli-responsive materials, and revealed the importance of appropriate steric hindrance for designing such molecules. | en |
dc.description.provenance | Made available in DSpace on 2021-07-10T21:53:29Z (GMT). No. of bitstreams: 1 ntu-108-R06223118-1.pdf: 33190605 bytes, checksum: 3afd4e0a0874ee9c249ac4fdc7008f0a (MD5) Previous issue date: 2019 | en |
dc.description.tableofcontents | 謝誌 i
摘要 ii Abstract iii Table of Contents iv Figure List vii Table List xiv Scheme List xv List of Supplemental Figures xvi List of Supplemental Tables xviii 1. Introduction 1 1-1 Luminescent Platinum Complexes 1 1-1-1 Basic Photophysics of Platinum(II) Complexes 1 1-1-2 Application as OLED Emitters 3 1-1-3 Application as Oxygen Sensors 5 1-1-4 Application in Bioimaging 6 1-2 Platinum Complexes as Stimuli-Responsive Materials 8 1-2-1 Mechanochromic Luminescence 8 1-2-2 Vapochromic Luminescence 11 1-2-3 Thermochromic Luminescence 16 1-2-4 Photochromic Luminescence 17 1-3 Application of Pentiptycene Derivatives 19 1-3-1 Sensors 20 1-3-2 Multi-Stimuli-Responsive Materials 21 1-4 Steric Effects on Luminescent Materials 26 1-4-1 Steric Effects on OLED Materials 26 1-4-2 Steric Effects on Stimuli-Responsive Materials 29 1-5 Motivation 32 2. Results and Discussion 35 2-1 Synthesis 35 2-2 Crystal Structures 37 2-3 Solution State Photophysics 43 2-4 Aggregate State Photophysics 48 2-5 Mechanochromic and Vapochromic Luminescence 52 2-6 Origin of the Long-Wavelength Emission 59 2-7 Correlation between Solid-State Luminescence and Structures 61 3. Conclusions 65 4. Experimental Section 66 4-1 Instrumental Methods 66 4-2 Calculations. 68 4-3 Sample Preparations 69 4-4 Materials 69 4-5 Synthetic Procedures 72 4-5-1 Synthesis of Pentiptycene Quinone 1 72 4-5-2 Synthesis of Compound 2 72 4-5-3 Synthesis of Pentiptycene Acetylene Pa 73 4-5-4 Synthesis of 4-(tert-Butyl)-2-(tributylstannyl)pyridine 3 74 4-5-5 Synthesis of L 75 4-5-6 Synthesis of LPtCl 76 4-5-7 Synthesis of LPtPa 77 4-5-8 Synthesis of Compound 4 78 4-5-9 Synthesis of PaL 79 4-5-10 Synthesis of PaLPtCl 80 5. Reference 81 6. Supplemental Data 86 | |
dc.language.iso | en | |
dc.title | 立體效應對於含有五苯荑之鉑錯合物之力致與蒸氣致變色放光研究 | zh_TW |
dc.title | Steric Effects on the Mechanochromic and Vapochromic Luminescence of Pentiptycene-Containing Platinum(II) Complexes | en |
dc.type | Thesis | |
dc.date.schoolyear | 107-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 鍾文聖(Wen-Sheng Chung),孫世勝(Shih-Sheng Sun) | |
dc.subject.keyword | 五苯荑,刺激響應材料,二價鉑錯合物, | zh_TW |
dc.subject.keyword | pentiptycene,stimuli-responsive material,Pt(II) complex, | en |
dc.relation.page | 144 | |
dc.identifier.doi | 10.6342/NTU201903100 | |
dc.rights.note | 未授權 | |
dc.date.accepted | 2019-08-13 | |
dc.contributor.author-college | 理學院 | zh_TW |
dc.contributor.author-dept | 化學研究所 | zh_TW |
顯示於系所單位: | 化學系 |
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