ICCAS OpenIR
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
Li Zhan-Xian3; Li Cong1; Mu Wei-Hua1; Xiong Shao-Xiang2; Fu Wen-Fu1,3
2011-12-15
Source PublicationINORGANICA CHIMICA ACTA
ISSN0020-1693
Volume379Issue:1Pages:7-15
AbstractThe 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.
KeywordVinyl Binuclear Copper(i) Crystal Structures Spectroscopic Properties 1 8-naphthyridine Derivatives
DOI10.1016/j.ica.2011.09.014
Indexed BySCI
Language英语
WOS IDWOS:000297266200002
PublisherELSEVIER SCIENCE SA
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/72840
Collection中国科学院化学研究所
Corresponding AuthorFu Wen-Fu
Affiliation1.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
Recommended Citation
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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Li Zhan-Xian]'s Articles
[Li Cong]'s Articles
[Mu Wei-Hua]'s Articles
Baidu academic
Similar articles in Baidu academic
[Li Zhan-Xian]'s Articles
[Li Cong]'s Articles
[Mu Wei-Hua]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Li Zhan-Xian]'s Articles
[Li Cong]'s Articles
[Mu Wei-Hua]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.