非線形光学特性および多色発光を示す多機能単分子磁石の構築

具有非线性光学特性和多色发射的多功能单分子磁体的构建

• 批准号: 20J20245
• 负责人: KUMAR Kunal
• 金额: $ 2.18万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for JSPS Fellows
• 财政年份: 2020
• 资助国家: 日本
• 起止时间: 2020-04-24 至 2023-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-20J20245/
• 关键词: Gold-Gold Interaction; Raman Thermometer; Emission Thermometer; Pseudohalides; SHG; THz Absorption; Low Frequency Raman; SMM; Excimer and Exciplex; Lanthanide; octacyanide; SecondHarmonicGeneration; MOLCAS; ExchangeParameter

I prepared three molecular compounds with the composition [DyxIIIY1-xIII(phen)2(μ-OH)2(H2O)2].[AuI(SCN)2]2.phen (x = 0 (DyAu), 0.1 (Dy0.1Y0.9Au), 0.02 (Dy0.02Y0.98Au); phen = 1,10-phenanthroline) containing lanthanide(III) ions (Ln3+) and bis(thiocyanato)gold(I) ions and solvents. The presence of two Au(I) atoms at a close distance make these assemblies attractive, which contain excimer-based emission properties and Au-Au vibrational features in the low-frequency (LF) region. The themometric ability utilizing Stokes and anti-Stokes Raman shift was charecterized. We also showed that this can be applied to detect the phase-transition of an unknown material. We also designed emission thermometer utilizing the luminescence of Dy(III) and Au(I) ions and compared it with Raman thermometer.

我制备了三种分子化合物，其组成为 [DyxIIIY1-xIII(phen)2(μ-OH)2(H2O)2].[AuI(SCN)2]2.phen (x = 0 (DyAu), 0.1 (Dy0. 1Y0.9Au)、0.02 (Dy0.02Y0.98Au) phen = 1,10-菲咯啉)；镧系 (III) 离子 (Ln3+) 和双(硫氰酸根)金 (I) 离子和溶剂 两个近距离的 Au(I) 原子的存在使这些组件具有吸引力，其中包含基于准分子的发射特性和 Au-Au。我们还表明，利用斯托克斯和反斯托克斯拉曼位移的测温能力可以用于检测低频（LF）区域的振动特征。我们还利用 Dy(III) 和 Au(I) 离子的发光设计了发射温度计，并将其与拉曼温度计进行了比较。

项目成果

Effect of heavier element on the ultra-low frequency phonons in Nd(III) based luminescent nanomagnets

重元素对 Nd(III) 基发光纳米磁体中超低频声子的影响

• 发表时间: 2022
• 作者: K. Kumar;O. Stefanczyk;K. Nakabayashi;Y. Mineo;and S. Ohkoshi
• 通讯作者: and S. Ohkoshi

Non-linear optical properties of magnetic fluorescent ytterbium(III) complexes, oral presentation

磁性荧光镱(III)络合物的非线性光学性质，口头报告

• 发表时间: 2020
• 作者: Kunal Kumar;Olaf Stefanczyk;Yusuke Ikeda;Koji Nakabayashi;Kenta Imoto;Kosuke Nakagawa;Shin-ichi Ohkoshi
• 通讯作者: Shin-ichi Ohkoshi

Ratiometric Raman and Luminescent Thermometers Constructed from Dysprosium Thiocyanidometallate Molecular Magnets

• DOI: 10.1002/adom.202201675
• 发表时间: 2022-09
• 期刊: Advanced Optical Materials
• 影响因子: 9
• 作者: Kunal Kumar;O. Stefańczyk;S. Chorazy;K. Nakabayashi;S. Ohkoshi

Slow magnetic relaxation in Nd(<scp>iii</scp>) and Sm(<scp>iii</scp>) complexes formed in three-dimensional lanthanide-dicyanidometallate(<scp>i</scp>) frameworks exhibiting luminescent properties

在三维镧系元素-二氰基金属酸盐 (<scp>i</scp>) 骨架中形成的 Nd(<scp>iii</scp>) 和 Sm(<scp>iii</scp>) 配合物中的慢磁弛豫表现出发光特性

• DOI: 10.1039/d2tc04198g
• 发表时间: 2023
• 期刊: Journal of Materials Chemistry C
• 影响因子: 6.4
• 作者: Kumar Kunal;Li Guanping;Stefanczyk Olaf;Chorazy Szymon;Nakabayashi Koji;Ohkoshi Shin-ichi
• 通讯作者: Ohkoshi Shin-ichi

Comparing the Raman and emission thermometry of a hydroxo-bridged molecular magnet

比较羟基桥联分子磁体的拉曼和发射测温

• 发表时间: 2023
• 作者: K. Kumar;O. Stefanczyk;S. Chorazy;K. Nakabayashi;S. Ohkoshi
• 通讯作者: S. Ohkoshi