.png){kind=icon}
返回
Copper(I)-Pyrazolate Complexes as Solid-State Phosphors: Deep-Blue Emission through a Remote Steric Effect
.png){kind=icon}
PRE
AI
DOI：10.1021/jacs.1c13462.png)
.png){kind=icon}
原文求助.png){kind=icon}
分享.png){kind=icon}
收藏
摘要
En 中文
We describe a novel manifestation of rigidochromic behavior in a series of tetranuclear Cu(I)-pyrazolate (Cu(4)pz(4)) macrocycles, with implications for solid-state luminescence at deep-blue wavelengths (<460 nm). The Cu(4)pz(4) emissions are remarkably sensitive to structural effects far from the luminescent core: when 3,5-di-tert-butylpyrazoles are used as bridging ligands, adding a C4 substituent can induce a blue shift of more than 100 nm. X-ray crystal and computational analyses reveal that C4 units influence the conformational behavior of adjacent tert-butyl groups, with a subsequent impact on the global conformation of the Cu(4)pz(4) complex. Emissions are mediated primarily through a cluster-centered triplet ((CC)-C-3) state; compression of the Cu-4 cluster into a nearly close-packed geometry prevents the reorganization of its excited-state structure and preserves the (CC)-C-3 energy at a high level. The remote steric effect may thus offer alternative strategies toward the design of phosphors with rigid excited-state geometries.
Keyword:
LIGHT-EMITTING-DIODES
COPPER(I) COMPLEXES
QUANTUM EFFICIENCY
TRIPLET EMITTERS
LUMINESCENCE
PHOTOLUMINESCENCE
D(8)
VAN
期刊
IF:
15.6
论文数:
20.0W
被引数:
60.2W
机构
引用论文
How the Quantum Efficiency of a Highly Emissive Binuclear Copper Complex Is Enhanced by Changing the Processing Solvent.png)
LANGMUIR
LANGMUIRIF3.9
PREAI
分享收藏Cu(I) complexes - Thermally activated delayed fluorescence. Photophysical approach and material designCu(I) 配合物-热活化延迟荧光。光物理方法与材料设计
OAAI
OAAI分享收藏The Anthelmintic Drug Niclosamide Induces Apoptosis, Impairs Metastasis and Reduces Immunosuppressive Cells in Breast Cancer ModelPLoS ONEOAAI
PLoS ONEIF0
OAAI分享收藏Synthesis and Structure of the Novel μ2‐Carbido Complex [(TPP)FeCRe(CO)4 Re(CO)5]新型 μ2-碳配合物 [(TPP) fe c re (CO)4 Re(CO)5] 的合成与结构
PREAI
分享收藏
查看更多内容