Synthesis and properties of novel second-order NLO chromophores containing pyrrole as an auxiliary electron donor
文献类型：期刊论文
| 作者 | Ma, Xiaohua1; Liang, Ran2; Yang, Fan2; Zhao, Zhenhua1; Zhang, Aixin1; Song, Naiheng1; Zhou, Qifeng1; Zhang, Jianping2 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY
 |
| 出版日期 | 2008 |
| 卷号 | 18期号:15页码:1756-1764 |
| ISSN号 | 0959-9428 |
| DOI | 10.1039/b720023d |
| 英文摘要 | A novel series of second-order NLO chromophores containing pyrrole as an auxiliary electron donor was synthesized via Knoevenagel reactions between 5-aminated N-methylpyrrole-2-carbaldehydes and different electron-accepting groups, i.e., malononitrile, picolinium tosylate and 2-dicyanomethylene-3-cyano-4,5,5-trimethyl-2,5-dihydrofuran (TCF). Their corresponding NLO chromophores containing thiophene in the place of pyrrole were also prepared for comparison. The resulting NLO chromophores showed good solubility in common organic solvents such as CHCl3, THF and DMF, except for TTCF containing thiophene and TCF, which is soluble in polar aprotic solvents but poorly soluble in less polar solvents. NMR studies of these chromophores showed that, in comparison with thiophene rings in the same type of NLO chromophores, pyrrole rings had higher electron density, as evidenced by the up-field chemical shifts of pyrrole protons. TGA investigations showed good thermal stability of these chromophores in nitrogen with the onset weight loss temperatures in the range of 203 to 296 degrees C. Positive solvatochromism of 10-44 nm from dioxane to chloroform were found for these chromophores, and moderate to very large molecular static hyperpolarizabilities (beta(0)) of 57-1490 x 10(-30) esu were revealed by hyper-Rayleigh scattering measurements. For chemical bonding to polymer chains, hydroxyl-containing NLO chromophores were also prepared and characterized for their linear and nonlinear optical properties. |
| 语种 | 英语 |
| WOS记录号 | WOS:000254648100006 |
| 出版者 | ROYAL SOC CHEMISTRY |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/63009]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Song, Naiheng |
| 作者单位 | 1.Peking Univ, Coll Chem & Mol Engn, Dept Polymer Sci & Engn,Beijing Natl Lab Mol Sci, Key Lab Polymer Chem & Phys,Minist Educ, Beijing 100871, Peoples R China 2.Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ma, Xiaohua,Liang, Ran,Yang, Fan,et al. Synthesis and properties of novel second-order NLO chromophores containing pyrrole as an auxiliary electron donor[J]. JOURNAL OF MATERIALS CHEMISTRY,2008,18(15):1756-1764. |
| APA | Ma, Xiaohua.,Liang, Ran.,Yang, Fan.,Zhao, Zhenhua.,Zhang, Aixin.,...&Zhang, Jianping.(2008).Synthesis and properties of novel second-order NLO chromophores containing pyrrole as an auxiliary electron donor.JOURNAL OF MATERIALS CHEMISTRY,18(15),1756-1764. |
| MLA | Ma, Xiaohua,et al."Synthesis and properties of novel second-order NLO chromophores containing pyrrole as an auxiliary electron donor".JOURNAL OF MATERIALS CHEMISTRY 18.15(2008):1756-1764. |
入库方式： OAI收割
来源：化学研究所
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