Synthesis, structures and spectroscopic properties of new 1,2-bis[2-(4-methyl-7-acetylamino-1,8-naphthyridine)]ethylene ligand and its binuclear copper(I) complexes
文献类型：期刊论文
| 作者 | Li Zhan-Xian3; Li Cong1; Mu Wei-Hua1; Xiong Shao-Xiang2; Fu Wen-Fu1,3 |
| 刊名 | INORGANICA CHIMICA ACTA
 |
| 出版日期 | 2011-12-15 |
| 卷号 | 379期号:1页码:7-15 |
| 关键词 | Vinyl Binuclear Copper(i) Crystal Structures Spectroscopic Properties 1 8-naphthyridine Derivatives |
| ISSN号 | 0020-1693 |
| DOI | 10.1016/j.ica.2011.09.014 |
| 英文摘要 | The synthesis, characterization, spectroscopic properties of a new ligand 1,2-bis[2-(4-methyl-7-acetyl-amino-1,8-naphthyridine)]ethylene (L) and its two binuclear Cu(I) complexes containing triphenylphosphine (PPh3) or bis(diphenylphosphino)methane (dppm), [Cu-2(L)(PPh3)(4)](BF4)(2)center dot 2CH(2)Cl(2) (1 center dot 2CH(2)Cl(2)) and [Cu-2(L)(dppm)(2)](BF4)(2)center dot 4H(2)O (2 center dot 4H(2)O) are reported. The structural investigation of these compounds based on X-ray crystal analysis shows that the copper(I) centers adopt different coordination geometries, O(N)CuP2+ and NCuP2+ for complexes 1 and 2, respectively. Upon irradiation of a degassed organic solution of L at 365 nm, photoinduced isomerization reaction and an intramolecular proton transfer of ligand L were detailed studied by absorption spectral changes. A spectroscopic investigation involving time-dependent density functional theory calculations allows assignment of the excited states that relate to emission and transient absorption spectra. The observed lower-energy absorption bands appearing in the region of 413 and 418 nm for 1 and 2 in dichloromethane are assigned to ligand-to-ligand charge transfer (LLCT, phosphine -> napy) transition in nature. Compared with well-structured solid-state emission originating from pi pi* transition of ligand L, complexes 1 and 2 exhibit intense room-temperature solid-state emissions with lambda(max) at 586 and 620 nm, respectively. The energy and the shape of the emission bands are clearly different from that of the ligand, indicating the emissions come from different excited states. (C) 2011 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000297266200002 |
| 出版者 | ELSEVIER SCIENCE SA |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/72839]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Fu Wen-Fu |
| 作者单位 | 1.Yunnan Normal Univ, Coll Chem & Chem Engn, Kunming 650092, Peoples R China 2.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing Mass Spectrometry Ctr, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Tech Inst Phys & Chem, HKU CAS Joint Lab New Mat, Key Lab Photochem Convers & Optoelect Mat, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Zhan-Xian,Li Cong,Mu Wei-Hua,et al. Synthesis, structures and spectroscopic properties of new 1,2-bis[2-(4-methyl-7-acetylamino-1,8-naphthyridine)]ethylene ligand and its binuclear copper(I) complexes[J]. INORGANICA CHIMICA ACTA,2011,379(1):7-15. |
| APA | Li Zhan-Xian,Li Cong,Mu Wei-Hua,Xiong Shao-Xiang,&Fu Wen-Fu.(2011).Synthesis, structures and spectroscopic properties of new 1,2-bis[2-(4-methyl-7-acetylamino-1,8-naphthyridine)]ethylene ligand and its binuclear copper(I) complexes.INORGANICA CHIMICA ACTA,379(1),7-15. |
| MLA | Li Zhan-Xian,et al."Synthesis, structures and spectroscopic properties of new 1,2-bis[2-(4-methyl-7-acetylamino-1,8-naphthyridine)]ethylene ligand and its binuclear copper(I) complexes".INORGANICA CHIMICA ACTA 379.1(2011):7-15. |
入库方式： OAI收割
来源：化学研究所
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