| DC 欄位 |
值 |
語言 |
| DC.contributor | 化學學系 | zh_TW |
| DC.creator | 陳冠吉 | zh_TW |
| DC.creator | Kuan-Chi Chen | en_US |
| dc.date.accessioned | 2006-7-21T07:39:07Z | |
| dc.date.available | 2006-7-21T07:39:07Z | |
| dc.date.issued | 2006 | |
| dc.identifier.uri | http://ir.lib.ncu.edu.tw:88/thesis/view_etd.asp?URN=93223045 | |
| dc.contributor.department | 化學學系 | zh_TW |
| DC.description | 國立中央大學 | zh_TW |
| DC.description | National Central University | en_US |
| dc.description.abstract | 本研究在於開發新的缺電子性的材料。我們成功的將imidzole-
[1,2-a]pyrimidine 之二號碳上及三號碳上，進行C-C 鍵的偶合，合成
出兩系列化合物，其其螢光光色從藍到藍綠，在toluene 中的量子產
率大約4﹪~ 50﹪，此系列化合物經AC-2 量測，其HOMO 能階介於
5.42 eV~ 6.11 eV，並且經由UV 的edge 切線求得化合物的HOMO 與
LUMO 能階差，而估算出LUMO 能階，其LUMO 能階 介於2.47 eV
~ 2.94 eV。化合物2、3、6、14 並經單晶解析，證實其結構。其中除
化合物2 為三斜晶系外，化合物3、6 與14 皆為單斜晶系。化合物3
中之晶體中可發現分子有π-π interaction，imidzole[1,2-a]pyrimidine
環間距離為約3.36 Å，但僅存在於兩兩配對之分子，無法形成π-通
道( π-channel )。化合物6 則存在有分子間C-H…π interaction，距
離約為2.7 Å。化合物14 則是形成有趣的魚骨頭( herringbone )架構，
其π-π interaction 之距離分別是3.34 Å 與3.39 Å。 | zh_TW |
| dc.description.abstract | Electron-deficent organic materials containing imidazole[1,2-a]-
pyrimidine unit have been synthesized via C-C coupling at the C-2 and
C-3 sites of imidazole[1,2-a]pyrimidine unit. These compounds emit
from blue to green-blue and their quantum yields in toluene range from
4 to 50％. Based on the data from AC-2 measurement,and the 0-0
transition energy from UV spectra, the HOMO and LUMO energies were
calculated to be 5.42 ~ 6.11 eV and 2.47 ~ 2.94 eV, respectively. The
molecular structure of compounds 2, 3, 6 and 14 were confirmed by the
single crystal X-ray structural determination. The crystal system of 2 is
triclinic, that of all others is monoclinic. In the lattice of 3, there exists
9-9 interaction at a distance ~ 3.36 Å. However, such an interaction was
found in the paired molecules only. In 6, C-H…9 interaction with a
distance of 2.7 Å was observed. In comparison, compound 14 has
interesting herringbone packing in the lattice. The 9-9 interaction
distances for two different 9-channels are 3.34 Å and 3.39 Å,
respectively. | en_US |
| DC.subject | 有機發光二極體 | zh_TW |
| DC.subject | OLED | en_US |
| DC.title | 含Imidazo[1,2-a]pyrimidine 單元的光電材料 | zh_TW |
| dc.language.iso | zh-TW | zh-TW |
| DC.title | Photoelectric material including unit Imidazo[1,2-a]pyrimidine | en_US |
| DC.type | 博碩士論文 | zh_TW |
| DC.type | thesis | en_US |
| DC.publisher | National Central University | en_US |