| 查看: 888 | 回复: 4 | ||
| 本帖产生 1 个 翻译EPI ，点击这里进行查看 | ||
| 当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖 | ||
woshibadchen金虫 (正式写手)
|
[求助]
50金币求英译汉 有机二极管专业
|
|
|
The synthesis and structural, photophysical, electrochemical, and electroluminescent properties of a class of platinum(II) complexes bearing ó-alkynyl ancillary ligands, namely [(C^N^N)Pt(C≡C)nR] [H(C^N^N)═ 6-aryl-2,2′-bipyridine; n= 1- 4; R= aryl, alkyl, or trimethylsilyl], have been studied. Substituents with different steric and electronic properties were introduced into the tridentate cyclometalating and arylacetylide ligands, and the π-conjugation length of the oligoynyl moiety was homologously extended from ethynyl to octatetraynyl. The X-ray crystal structures of several derivatives confirm the Pt (C≡C) ligation and reveal various intermolecular interactions, such as π-π,Pt… Pt, and C- H …F- C. The complexes display good thermal stability and intense phosphorescence in fluid and glassy solutions with high quantum yields and microsecond lifetimes. Their emission energies are sensitive to solvent polarity, the electronic affinities of the substituents on both the cyclometalating and arylacetylide groups, and the length of the oligoynyl ligand. By choosing appropriate cyclometalating and ó-alkynyl ligands, the emission color of this class of platinum(II) complexes can be tuned from green-yellow to saturated red. In addition to 3MLCT [Pt(5d)→π*(C^N^N)] and 3IL(C^N^N), intriguing 3IL(alkynyl) excited states localized on -(C≡C)4 and (C≡Cpyrenyl-1) moieties that afford narrow-bandwidth emissions have been observed. Selected Pt(II) complexes were doped into the emissive region of multilayer, vapor-deposited organic light-emitting diodes. The tunable electrophosphorescence energy resembles that recorded in fluid solutions for these emitters, and the devices exhibit high luminance and efficiencies (up to 4.2 cd A- 1). 谢绝软件翻译，谢谢 [ Last edited by woshibadchen on 2011-6-27 at 08:44 ] |
回复此楼» 猜你喜欢
电子信息270求调剂
已经有6人回复
-
求调剂
已经有10人回复
-
求调剂
已经有4人回复
-
化学308分求调剂
已经有13人回复
-
336材料与化工085600求调剂
已经有20人回复
-
328求调剂
已经有9人回复
-
285求调剂
已经有17人回复
-
一志愿0703化学招61最终排名62化学求调剂
已经有3人回复
-
278求调剂
已经有4人回复
-
388求调剂
已经有7人回复
liubencai
木虫之王 (文坛精英)
- 翻译EPI: 37
- 应助: 84 (初中生)
- 贵宾: 0.103
- 金币: 100902
- 红花: 108
- 沙发: 57
- 帖子: 21817
- 在线: 2403.8小时
- 虫号: 273437
- 注册: 2006-08-20
- 性别: GG
- 专业: 配位化学
5楼2011-06-27 09:42:56
liubencai
木虫之王 (文坛精英)
- 翻译EPI: 37
- 应助: 84 (初中生)
- 贵宾: 0.103
- 金币: 100902
- 红花: 108
- 沙发: 57
- 帖子: 21817
- 在线: 2403.8小时
- 虫号: 273437
- 注册: 2006-08-20
- 性别: GG
- 专业: 配位化学
2楼2011-06-27 09:08:43
liubencai
木虫之王 (文坛精英)
- 翻译EPI: 37
- 应助: 84 (初中生)
- 贵宾: 0.103
- 金币: 100902
- 红花: 108
- 沙发: 57
- 帖子: 21817
- 在线: 2403.8小时
- 虫号: 273437
- 注册: 2006-08-20
- 性别: GG
- 专业: 配位化学
4楼2011-06-27 09:27:43
