Synthesis and characterization of monodisperse oligo(fluorene-co-bithiophene)s
文献类型：期刊论文
| 作者 | Zhang XJ ; Qu Y ; Bu LJ ; Tian HK ; Zhang JP ; Wang LX ; Geng YH ; Wang FS |
| 刊名 | chemistry-a european journal
 |
| 出版日期 | 2007 |
| 卷号 | 13期号:21页码:6238-6248 |
| 关键词 | FIELD-EFFECT TRANSISTORS EFFECTIVE CONJUGATION LENGTH CROSS-COUPLING REACTIONS MOLECULAR SCALE WIRES LIGHT-EMITTING-DIODES LONG OLIGOTHIOPHENES THIOESTER TERMINI HOMOLOGOUS SERIES ALLIGATOR CLIPS EFFECT MOBILITY |
| ISSN号 | 0947-6539 |
| 通讯作者 | geng yh |
| 中文摘要 | a series of monodisperse oligo(9,9-di-n-octylfluorene-co-bithiophene)s (ofbts) with molecular lengths of up to 19.5 nm and molecular weights up to 7025 g mol(-1) has been synthesized by a divergent/convergent approach involving stille coupling reactions. stille coupling is quite efficient in preparing this class of oligomers, and even the molecule with nine fluorene units and eight bithiophene units (f9th16) can be synthesized in a yield as high as 70%. because of easy functionalization of the thiophene ring at its alpha position, no additional protecting group allowing activation for further reaction is necessary. however, the synthetic routes must be optimized to eliminate contamination of the targeting compounds with the homocoupling product of the organotin reagents. synthesis of the longest oligomer f13th24 in a relative large quantity is limited by its low yield due to the pronounced ligand-exchange side reactions of the starting materials and reaction intermediates. all oligomers longer than f4th6 are nematic mesomorphs and exhibit enhanced glass transition temperature and clearing point with increasing molecular length, as revealed by differential scanning calorimetry and polarizing optical microscopy. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000248250300025 |
| 公开日期 | 2010-07-13 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/13717]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhang XJ,Qu Y,Bu LJ,et al. Synthesis and characterization of monodisperse oligo(fluorene-co-bithiophene)s[J]. chemistry-a european journal,2007,13(21):6238-6248. |
| APA | Zhang XJ.,Qu Y.,Bu LJ.,Tian HK.,Zhang JP.,...&Wang FS.(2007).Synthesis and characterization of monodisperse oligo(fluorene-co-bithiophene)s.chemistry-a european journal,13(21),6238-6248. |
| MLA | Zhang XJ,et al."Synthesis and characterization of monodisperse oligo(fluorene-co-bithiophene)s".chemistry-a european journal 13.21(2007):6238-6248. |
入库方式： OAI收割
来源：长春应用化学研究所
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