Cu-based metal-organic frameworks-derived copper nanoclusters with tunable emission for ratiometric pH sensing

2021 ◽  
pp. 131130
Author(s):  
Xue Hu ◽  
Xiaodan Zhang ◽  
Haiyan Cao ◽  
Yuming Huang
2016 ◽  
Vol 40 (5) ◽  
pp. 4654-4661 ◽  
Author(s):  
Ji-Na Hao ◽  
Bing Yan

Ln3+-functionalized MOFs with tunable color and white-light emission were fabricated and developed as luminescent sensors for anions and small molecules.


2018 ◽  
Vol 1 (1) ◽  
Author(s):  
Yan Su ◽  
Junhong Yu ◽  
Youbing Li ◽  
Soo Fiona Zeng Phua ◽  
Guofeng Liu ◽  
...  

Molecules ◽  
2021 ◽  
Vol 26 (17) ◽  
pp. 5145
Author(s):  
Pavel A. Demakov ◽  
Alena A. Vasileva ◽  
Sergey S. Volynkin ◽  
Alexey A. Ryadun ◽  
Denis G. Samsonenko ◽  
...  

Three isostructural metal–organic frameworks ([Ln2(phen)2(NO3)2(chdc)2]·2DMF (Ln3+ = Y3+ for 1, Eu3+ for 2 or Tb3+ for 3; phen = 1,10-phenanthroline; H2chdc = trans-1,4-cyclohexanedicarboxylic acid) were synthesized and characterized. The compounds are based on a binuclear block {M2(phen)2(NO3)2(OOCR)4} assembled into a two-dime nsional square-grid network containing tetragonal channels with 26% total solvent-accessible volume. Yttrium (1)-, europium (2)- and terbium (3)-based structures emit in the blue, red and green regions, respectively, representing the basic colors of the standard RGB matrix. A doping of Eu3+ and/or Tb3+ centers into the Y3+-based phase led to mixed-metal compositions with tunable emission color and high quantum yields (QY) up to 84%. The bright luminescence of a suspension of microcrystalline 3 in DMF (QY = 78%) is effectively quenched by diluted cinnamaldehyde (cinnamal) solutions at millimolar concentrations, suggesting a convenient and analytically viable sensing method for this important chemical.


2018 ◽  
Vol 18 (4) ◽  
pp. 2031-2039 ◽  
Author(s):  
Zhen-Jing Li ◽  
Xiu-Yuan Li ◽  
Yang-Tian Yan ◽  
Lei Hou ◽  
Wen-Yan Zhang ◽  
...  

2014 ◽  
Vol 43 (33) ◽  
pp. 12574-12581 ◽  
Author(s):  
Fengming Zhang ◽  
Pengfei Yan ◽  
Hongfeng Li ◽  
Xiaoyan Zou ◽  
Guangfeng Hou ◽  
...  

Eu(iii)-doped Gd(iii) pyrazine-2,3,5,6-tetracarboxylate alkali–lanthanide metal–organic frameworks (LnMOF) with a unique (411·68·82)(43·62·8)(43) topology present full color-tunable luminescence and white emission by the variation of excitation wavelengths.


ChemNanoMat ◽  
2016 ◽  
Vol 3 (1) ◽  
pp. 51-57 ◽  
Author(s):  
Tifeng Xia ◽  
Yuanjing Cui ◽  
Yu Yang ◽  
Guodong Qian

2018 ◽  
Vol 6 (39) ◽  
pp. 10628-10639 ◽  
Author(s):  
Xiu-Liang Lv ◽  
Lin-Hua Xie ◽  
Bin Wang ◽  
Minjian Zhao ◽  
Yuanjing Cui ◽  
...  

Two new metal–organic frameworks (MOFs) constructed from carbazole-based ligands showed high porosity, good stability, and reversible structural flexibility, as well as stimuli-responsive fluorescence. It is demonstrated that these MOFs are highly potential in the wide-range quantitative pH sensing by determining the wavelengths of the maximum emission.


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