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Formation and conversion of six temperature-dependent fluorescent Zn-II-complexes containing two in situ formed N-rich heterocyclic ligands
Wei, Qin1; Wei, Mei-Juan1; Ou, Yan-Jun1; Zhang, Ji-Yuan4; Huang, Xia1; Cai, Yue-Peng1,2,3; Si, Li-Ping1
2017
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume7Issue:12Pages:6994-7002
AbstractSix temperature-dependent Zn(II) complexes 1-6 based on the simple Schiff base L-1 from condensation of equivalent 2-pyridine formaldehyde (2-Pfd) and 2-pyridylethylamine (2-Pea) were systematically studied for the first time. These six complexes are: two complexes of (ZnLX2)-X-2 (1 and 2) involving in situ formed N-rich heterocyclic ligand L-2 at 80 degrees C; two complexes of [Zn-2(cis-L-3) X-4.S] (S = H2O for 3, S = 0 for 5) involving in situ formed azaheterocyclic ligand cis-L-3 at 100 degrees C; and the rest two ones of [[Zn-2(trans-L-3) X-4] (4 and 6) involving in situ formed azaheterocyclic ligand trans-L-3 at 120 degrees C (where X = Cl (1, 3, 4) and N-3 (2, 5, 6), L-1 = N-(2pyridylmethyl)-pyridine-2-carbaldimine, L-2 = 1-pyridineimidazo-[1,5-a] pyridine, L3 = 1-(1,2-di(pyridin-2-yl)-2(3-(pyridin-2-yl) H-imidazo-[1,5-a]-pyridin-1-yl)-ethyl)-3-(pyridin-2-yl) H-imidazo-[1,5-a] pyridine). Interestingly, three Cl-based complexes 1, 3, 4 under appropriate conditions can be irreversibly translated into the corresponding N3-based 2, 5, 6, respectively. The possible formation/conversion mechanism shows that the aH activation in -CH=N-CH2-moiety of L1 coordinated to Zn2+ ion should be the original driving force for the intermolecular C-C/C-N coupling and ring formation reactions, meanwhile reaction temperature also plays a very important role during the formation/conversion of 1-6. Moreover, the results indicate that complexes 1-6 have good fluorescence properties as potential fluorescent materials.
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c6ra25678c
WOS Subject ExtendedChemistry
WOS KeywordC BOND-FORMATION ; END-TO-END ; IMIDAZOLIDINE ; DERIVATIVES ; METAL ; REACTIVITY ; CENTERS ; AZIDES
Indexed BySCI
Language英语
Funding OrganizationNational Natural Science Foundation of P. R. China(21471061 ; Doctoral Program of Higher Education of China(20124407110007) ; Science and Technology Planning Project of Guangdong Province, Guangzhou, China(2013B010403024 ; N. S. F. of Guangdong Province(2014A030311001 ; 21671071 ; 2015B010135009) ; C86186) ; 911220008)
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000393756000024
PublisherROYAL SOC CHEMISTRY
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/14031
Collection中国科学院广州能源研究所
Corresponding AuthorCai, Yue-Peng; Si, Li-Ping
Affiliation1.South China Normal Univ, Sch Chem & Environm, Guangzhou, Guangdong, Peoples R China
2.Guangzhou Key Lab Mat Energy Convers & Storage, Guangzhou 510006, Guangdong, Peoples R China
3.Guangdong Prov Engn Technol Res Ctr Mat Energy Co, Guangzhou 510080, Guangdong, Peoples R China
4.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
Recommended Citation
GB/T 7714
Wei, Qin,Wei, Mei-Juan,Ou, Yan-Jun,et al. Formation and conversion of six temperature-dependent fluorescent Zn-II-complexes containing two in situ formed N-rich heterocyclic ligands[J]. RSC ADVANCES,2017,7(12):6994-7002.
APA Wei, Qin.,Wei, Mei-Juan.,Ou, Yan-Jun.,Zhang, Ji-Yuan.,Huang, Xia.,...&Si, Li-Ping.(2017).Formation and conversion of six temperature-dependent fluorescent Zn-II-complexes containing two in situ formed N-rich heterocyclic ligands.RSC ADVANCES,7(12),6994-7002.
MLA Wei, Qin,et al."Formation and conversion of six temperature-dependent fluorescent Zn-II-complexes containing two in situ formed N-rich heterocyclic ligands".RSC ADVANCES 7.12(2017):6994-7002.
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