CAREER:CAS:Synthetic Strategies Towards Modular Lanthanide and Base-metal Complexes Exhibiting Strong Circularly Polarized Luminescence.

职业：CAS：表现出强圆偏振发光的模块化镧系元素和贱金属配合物的合成策略。

基本信息

批准号：
2041084
负责人：
Gael Ung
金额：
$ 68.5万
依托单位：
University of Connecticut
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2021
资助国家：
美国
起止时间：
2021-09-01 至 2026-08-31
项目状态：
未结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2041084&HistoricalAwards=false
关键词：
CAREER CAS Synthetic Strategies Towards

项目摘要

In this CAREER project, funded by the Chemical Structure, Dynamics & Mechanism B Program of the Chemistry Division, Dr. Gaël Ung of the Department of Chemistry at the University of Connecticut is developing molecules capable of emitting circularly polarized light, light possessing right-handed or left-handed rotation with respect to the direction of propagation. This next-generation light source provides potential opportunities to enhance optical three-dimensional displays, bio-imaging, and security inks. The goal is to obtain molecules emitting strong circularly polarized luminescence in the visible and near-infrared region. This is to be achieved by rigorous evaluation of the relationship between chemical structure and circularly polarized luminescence properties. This project is tied to a research program supporting low-income first-generation college students who typically work part- or full-time to sustain themselves, allowing them to be as successful as other students who can afford to take research in STEM fields without sacrificing financial stability.In this project, Dr. Ung and his group examine the effect of symmetry, structural rigidity, and coordination geometry on the circularly polarized luminescence of lanthanide complexes. Modular ternary lanthanide complexes supported by chiral hexadentate ligands have been designed for the structure-function study. Two specific groups of lanthanides will be studied, either emitting in the visible region, or in the near-infrared region of the spectrum. An appropriate combination of chiral ligand and sensitizer will allow for the synthesis of molecules exhibiting strong circularly polarized luminescence. The team will also examine the effect of ligand substitution on the circularly polarized luminescence of chiral copper complexes, providing a more sustainable alternative for the development of circularly polarized emitters.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在这个职业项目中，由化学结构，动力学和机制B计划资助，康涅狄格大学化学系的GaëlUng博士正在开发能够发出循环极化的光，具有右手或左手旋转的光的光，相对于传播方向。下一代的光源为增强光学三维显示，生物成像和安全墨水提供了潜在的机会。目标是获得可见和近红外区域中发出强圆形发光的分子。这是通过严格评估化学结构和圆形极化发光特性之间关系来实现的。该项目与一项研究计划有关，支持低收入第一代大学生，他们通常会部分或全职工作以维持自己，使他们与其他能够在不牺牲财务稳定的情况下在STEM领域进行研究的学生一样成功。由手性甲状腺配体支持的模块化三元型灯笼络合物已设计用于结构功能研究。将研究两个特定的灯笼组，在可见区域或光谱的近红外区域蚀刻。手性配体和灵敏度的适当组合将允许合成表现出强圆极化发光的分子。该团队还将检查配体替代对手性铜配合物的圆形极化发光的影响，为开发循环极化EMITTERS的发展提供了更可持续的替代方案。该奖项反映了NSF的法定任务，并被认为是通过使用该基金会的知识分子和更广泛影响的评估来评估CRITERIA CRITERIA CRITERIA的评估，认为这是珍贵的支持。

项目成果

期刊论文数量（6）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Synthesis of bright water-soluble circularly polarized luminescence emitters as potential sensors

DOI：
10.1039/d1qi01398j
发表时间：
2022-02-18
期刊：
INORGANIC CHEMISTRY FRONTIERS
影响因子：
7
作者：
Adewuyi, Joseph A.;Schley, Nathan D.;Ung, Gael
通讯作者：
Ung, Gael

Circularly Polarized Luminescence from Uranyl Improves Resolution of Electronic Transitions

DOI：
10.1021/jacs.2c03791
发表时间：
2022-06-22
期刊：
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
影响因子：
15
作者：
Schnable，David;Schley，Nathan D.;Ung，Gael
通讯作者：
Ung，Gael

Anionic ligand-induced chirality in perovskite nanoplatelets

钙钛矿纳米片中阴离子配体诱导的手性

DOI：
10.1039/d2cc05469h
发表时间：
2023
期刊：
Chemical Communications
影响因子：
4.9
作者：
Tran, Thi Kim;Adewuyi, Joseph A.;Wang, Yongchen;Morales-Acosta, M. Daniela;Mani, Tomoyasu;Ung, Gaël;Zhao, Jing
通讯作者：
Zhao, Jing

Strong Circularly Polarized Luminescence at 1550 nm from Enantiopure Molecular Erbium Complexes