Cyclic aminomethylphosphines as ligands. Rational design and unpredicted findings

2017 ◽  
Vol 89 (3) ◽  
pp. 293-309 ◽  
Author(s):  
Andrey A. Karasik ◽  
Elvira I. Musina ◽  
Anna S. Balueva ◽  
Igor D. Strelnik ◽  
Oleg G. Sinyashin
Keyword(s):  
Transition Metal Complexes ◽  
Rational Design ◽  
Luminescent Properties ◽  
Luminescent Materials ◽  
Chelating Ligands ◽  
Stimuli Responsive ◽  
Transitional Metals ◽  
Spontaneous Formation ◽  
Macrocyclic Molecules ◽  
High Influence

Abstract:Rational design of title ligands and their transition metal complexes gave the high effective catalysts for hydrogen economy and perspective “stimuli-responsive” luminescent materials. Together with the above novel cyclic aminomehtylphospine ligands have showed a row of unpredicted properties like spontaneous formation of macrocyclic molecules, unique reversible slitting of macrocycles on to the smaller cycles, rapid interconversion of the isomers catalyzed by both acids and transitional metals, bridging behavior of usually chelating ligands and unexpected high influence of handling substituents on N-atoms on to the catalytic and luminescent properties of P-complexes.

Visual self-assembly and stimuli-responsive materials based on recent phosphorescent platinum(ii) complexes

2020 ◽  
Vol 5 (10) ◽  
pp. 1578-1605
Author(s):  
Baoning Li ◽  
Zhenjie Liang ◽  
Huijie Yan ◽  
Yongguang Li
Keyword(s):  
Chemical Sensors ◽  
Self Assembly ◽  
Luminescent Properties ◽  
Optical Devices ◽  
Luminescent Materials ◽  
Stimuli Responsive ◽  
Promising Candidate ◽  
Responsive Materials ◽  
Bio Imaging

Organoplatinum(ii) complexes with various π-conjugated ligands exhibit intriguing luminescent properties and they are a promising candidate to construct smart luminescent materials in optical devices, chemical sensors, and bio-imaging.

scholarly journals A Stimuli-Responsive Pillar[5]arene-Based Hybrid Material with Enhanced Tunable Multicolor Luminescence and Ion Sensing Ability

2020 ◽  
Author(s):  
Xin-Yue Lou ◽  
Nan Song ◽  
Ying-Wei Yang
Keyword(s):  
Hybrid Material ◽  
Luminescent Properties ◽  
Building Blocks ◽  
Luminescent Materials ◽  
Stimuli Responsive ◽  
Fluorescent Properties ◽  
Ion Sensing ◽  
Efficient Charge ◽  
Application Potential ◽  
External Stimuli

Abstract Tunable luminescent materials are becoming more and more important owing to their broad application potential in various fields. Here we construct a pillar[5]arene-based hybrid material with stimuli-responsive luminescent properties and ion sensing abilities from a pyridine-modified conjugated pillar[5]arene and a planar chromophore oligo(phenylenevinylene) upon coordination of Cd (II) metal cores. This new material not only shows an optimized luminescence due to the minimized π-π stacking and efficient charge transfer (CT) properties benefitting from the existence of pillar[5]arene rings, but also exhibits tunable multicolor emission induced by different external stimuli including solvent, ions, and acid, indicating great application potential as a fluorescent sensory material especially for Fe3+. With this pillar[5]arene-based dual-ligand hybrid material, valid optimization and regulation on the fluorescence of the original chromophore have been achieved, which demonstrates a plausible strategy for the design of tunable solid-state luminescent materials and also a prototypical model for the effective regulation of fluorescent properties of planar π systems using synthetic macrocycles-based building blocks.

scholarly journals Thermal Stability and Luminescent Properties of Tri-cellulose Acetate Composites Containing Dy(SSA)3Phen Complex

2018 ◽  
Vol 2018 ◽  
pp. 1-7
Author(s):  
Xiangwei Sun ◽  
Feiyue Wu ◽  
Yan Luo ◽  
Mengjun Huang ◽  
Yuntao Li ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Cellulose Acetate ◽  
Ternary Complex ◽  
Fluorescence Spectra ◽  
Luminescent Properties ◽  
Rare Earth Complex ◽  
Luminescent Materials ◽  
Sulfosalicylic Acid ◽  
Composition And Structure ◽  
Fluorescent Materials

Dysprosium (Dy) ternary complex was prepared using 5-sulfosalicylic acid (SSA) as the first ligand and 1,10-phenanthroline (Phen) as the second ligand, denoted as Dy(SSA)3Phen. The complex was blended with tri-cellulose acetate (TCA) via a cosolvent method to obtain polymer luminescent materials. The composition and structure of the rare-earth complex were characterized by means of elemental analysis, infrared (IR) spectra, and thermogravimetric analysis (TGA). The fluorescence spectra displayed this pure Dy(SSA)3Phen complex, and the TCA/Dy(SSA)3Phen composites all emit blue light. The (90/10) composite possesses fine luminescent properties with quantum yield of 33.5% and thermal stability for potential usage as blue fluorescent materials.

scholarly journals Molecular insertion regulates the donor-acceptor interactions in cocrystals for the design of piezochromic luminescent materials

2021 ◽  
Author(s):  
Chunguang Zhai ◽  
Xiu Yin ◽  
Shifeng Niu ◽  
Mingguang Yao ◽  
Shuhe Hu ◽  
...  
Keyword(s):  
Intermolecular Interactions ◽  
Luminescent Properties ◽  
Blue Shift ◽  
Luminescent Materials ◽  
Conformation Change ◽  
Emission Enhancement ◽  
Donor Acceptor ◽  
Fine Manipulation

Abstract Developing a universal strategy to design new piezochromic luminescent materials with desirable properties remains challenging. Here, we report that insertion of a non-emissive molecule into a donor (perylene) and acceptor (TCNB) binary cocrystal can realize fine manipulation of intermolecular interactions between perylene and TCNB for desirable piezochromic luminescent properties. A continuous pressure-induced emission enhancement up to 3 GPa and a blue shift from 655 nm to 619 nm have been observed in perylene-TCNB cocrystals upon THF insertion, in contrast to the red-shifted and quenched emission observed when compressing perylene-TCNB cocrystals and other cocrystals reported earlier. By combining experiment with theory, it is further revealed that the inserted non-emissive THF forms blue-shifted H-bonds with neighboring TCNB molecules and promote a conformation change of perylene molecules upon compression, causing the blue-shifted and enhanced emission. This strategy remains valid when inserting other molecules as non-emissive component into perylene-TCNB cocrystals for abnormal piezochromic luminescent behaviors. Our strategy could also be extended to other cocrystals with different donor-acceptor components, opening a new way for designing novel piezochromic luminescent materials for future applications.

scholarly journals Synthesis and Luminescent Properties of Eu3+/Tb3+ Rare Earth Ions Doped Li2SrSiO4 Phosphors

2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Kaitao Yu ◽  
Lifang Wei ◽  
Jiaqi Shen
Keyword(s):  
Charge Transfer ◽  
Charge Transfer Band ◽  
Emission Spectra ◽  
Luminescent Properties ◽  
Rare Earth Ions ◽  
Luminescent Materials ◽  
Excitation Spectra ◽  
Solid State Method ◽  
X Ray ◽  
Uv Visible

The series of luminescent materials of Eu3 +, Tb3 + doped Li2SrSiO4 were synthesized by a high-temperature solid-state method. The phase purity of the samples was measured by X-ray powder diffraction (XRD). The luminescent properties of the samples were studied by UV-visible excitation spectra and emission spectra The It is found that the strong absorption of Eu3 + doped Li2-xSr1-xEuxSiO4 is from the 250 ~ 290 nm charge transfer band of Eu3 + and the 7F0 → 5L6 absorption transition of 393 nm. The strongest emission of the emission spectra at 393 nm is 614 nm and 701 nm, respectively, from the 5D0 → 7F2 and 5D0 → 7F4 transitions of Eu3 +. Tb3 + doped sample Li2-xSr1-xTb xSiO4 excitation spectrum is mainly composed of Tb3 + ion fd transition and charge transfer band composed of broadband, the strongest absorption at 269 nm, the emission of the main emission of 5D4 → 7F5 transition (542 nm).

Rational Design of Stimuli-Responsive Polymers Modified Nanopores for Selective and Sensitive Determination of Salivary Glucose

2019 ◽  
Vol 91 (21) ◽  
pp. 14029-14035
Author(s):  
Miao Yang ◽  
Chunrong Ma ◽  
Shushu Ding ◽  
Yujie Zhu ◽  
Guoyue Shi ◽  
...  
Keyword(s):  
Rational Design ◽  
Stimuli Responsive ◽  
Stimuli Responsive Polymers ◽  
Responsive Polymers ◽  
Sensitive Determination
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