A series of blue-green-yellow-red emitting Cu(I) complexes: Molecular structure and photophysical performance

doi:10.1016/j.saa.2019.117280

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	A series of blue-green-yellow-red emitting Cu(I) complexes: Molecular structure and photophysical performance
	L.M.Zhang; Q.H.Zuo
	2019
发表期刊	Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy
ISSN	1386-1425
卷号	223 页码:8
摘要	In this work, we designed a series of [Cu(N-N)(PPh3)(2)]BF4 complexes with different optical edge values and emission colors from blue to red, where N-N and PPh3 denoted a diamine ligand and triphenylphosphine, respectively. Six N-N ligands with various conjugation chains (short n chain, modest n chain and long n chain) were selected. A systematical comparison between these Cu(I) complexes was performed, so that the correlation between N-N structure and [Cu(N-N)(PPh3)(2)] photophysical performance was tentatively discussed. Their single crystal structure was found consistent with literature ones, forming a typical tetrahedral coordination geometry. Density functional theory calculation indicated that their onset electronic transition showed a mixed character of metal-to-ligand-charge-transfer and ligand-to-ligand-charge-transfer. Detailed analysis on photophysical parameters suggested that the absorption edge of [Cu(N-N)(PPh3)(2)]BF4 complex was controlled by conjugation length in diamine ligand. A wide absorption edge needed a short conjugation chain in diamine ligand. Similar tendency was found for their emission spectra. In addition, a long conjugation chain in diamine ligand widened emission spectra obviously. Emission dynamics showed slim correlation with diamine ligand conjugation length since the excited state was controlled mainly by dynamic procedure and steric factor of diamine ligands. (C) 2019 Elsevier B.V. All rights reserved.
关键词	Phosphorescent Cu(I),Molecular structure,Conjugation plane,Frontier,molecular orbitals,ligand,photosensitizers,emission,Spectroscopy
DOI	10.1016/j.saa.2019.117280
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/62797
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	L.M.Zhang,Q.H.Zuo. A series of blue-green-yellow-red emitting Cu(I) complexes: Molecular structure and photophysical performance[J]. Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,2019,223:8.
APA	L.M.Zhang,&Q.H.Zuo.(2019).A series of blue-green-yellow-red emitting Cu(I) complexes: Molecular structure and photophysical performance.Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy,223,8.
MLA	L.M.Zhang,et al."A series of blue-green-yellow-red emitting Cu(I) complexes: Molecular structure and photophysical performance".Spectrochimica Acta Part a-Molecular and Biomolecular Spectroscopy 223(2019):8.

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