Synthesis, structure and near-infrared (NIR) luminescence of series of Zn2Ln (Ln=Nd, Yb or Er) complexes based on the Salen-type Schiff-base ligand with the flexible linker

2012 ◽  
Vol 20 ◽  
pp. 33-36 ◽  
Author(s):  
Wei-Xu Feng ◽  
Ya-Ni Hui ◽  
Guo-Xiang Shi ◽  
Dan Zou ◽  
Xing-Qiang Lü ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Near Infrared ◽  
Nir Luminescence

Near-Infrared Emitting Heterobinuclear Zn-Ln (Ln = Nd, Yb, Er,and Gd) Complexes Based on a Novel Asymmetric Schiff-Base Ligand

2013 ◽  
Vol 749 ◽  
pp. 527-532
Author(s):  
Shun Sheng Zhao
Keyword(s):  
Schiff Base ◽  
Excited State ◽  
Schiff Base Ligand ◽  
Near Infrared ◽  
Zinc Complex ◽  
Intramolecular Energy Transfer ◽  
Elementary Analysis ◽  
Ft Ir ◽  
Photophysical Studies ◽  
Nir Luminescence

With the asymmetric Schiff-base zinc complex ZnL (H2L = N-(5-bromo-3-methoxysalicylidene)-N'-(5-(4-cyanophenyl)-3-methoxysalicylidene) phenylene-1,2-diamine) as the precursor, a series of heterobinuclear Zn-Ln complexes [ZnLnL(NO3)3(CH3CN)] (Ln = Nd, 1; Ln = Yb, 2; Ln = Er, 3; Ln = Gd, 4) are synthesized by the further reaction with Ln (NO3)3·6H2O, and characterized by FT-IR, FAB-MS and elementary analysis. Photophysical studies of these complexes show that the strong and characteristic NIR luminescence of Nd3+, Yb3+and Er3+ with emissive lifetimes in the microsecond range has been sensitized from the excited state of the asymmetric Schiff-base ligand due to effective intramolecular energy transfer.

The near-infrared luminescence and magnetism of dinuclear complexes with different local symmetries constructed from a β-diketonate co-ligand and bis-Schiff base ligand

2020 ◽  
Vol 44 (6) ◽  
pp. 2561-2570 ◽  
Author(s):  
Huan-Huan Chen ◽  
Dong-Fang Wu ◽  
Yao-Yao Duan ◽  
Ling Li ◽  
Yun-Juan Wang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Magnetic Relaxation ◽  
Near Infrared ◽  
Relaxation Behavior ◽  
Dinuclear Complexes ◽  
Infrared Luminescence ◽  
Slow Magnetic Relaxation ◽  
Local Symmetries

A DyIII-complex based on a β-diketonate co-ligand and bi-Schiff base ligand displays slow magnetic relaxation behavior.

Anion dependent self-assembly of 56-metal Cd–Ln nanoclusters with enhanced near-infrared luminescence properties

Nanoscale ◽  
2014 ◽  
Vol 6 (18) ◽  
pp. 10569-10573 ◽  
Author(s):  
Xiaoping Yang ◽  
Desmond Schipper ◽  
Lijie Zhang ◽  
Keqin Yang ◽  
Shaoming Huang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Self Assembly ◽  
Near Infrared ◽  
Luminescence Properties ◽  
Infrared Luminescence

Two luminescent 56-metal Cd–Ln nanoclusters with unusual nano-double-drum-like structures were prepared using a flexible Schiff base ligand which contains two aryl-Br groups.

Self-assembly of luminescent 12-metal Zn–Ln planar nanoclusters with sensing properties towards nitro explosives

2018 ◽  
Vol 6 (31) ◽  
pp. 8513-8521 ◽  
Author(s):  
Dongmei Jiang ◽  
Xiaoping Yang ◽  
Xiaohui Zheng ◽  
Le Bo ◽  
Ting Zhu ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Self Assembly ◽  
High Sensitivity ◽  
Sensing Properties ◽  
Nitro Explosives ◽  
Nir Luminescence

Two types of Zn–Ln nanoclusters (Ln = Nd and Sm) were constructed using one long Schiff base ligand with a naphthyl backbone, and the 12-metal Zn–Sm cluster shows interesting visible and NIR luminescence sensing of nitro explosives with high sensitivity to 1,4-DNB and TNT at the ppb level.

Near-infrared luminescence and magnetic properties of dinuclear rare earth complexes modulated by β-diketone co-ligands

2020 ◽  
Vol 44 (10) ◽  
pp. 3912-3921 ◽  
Author(s):  
Ling Li ◽  
Jian Gou ◽  
Dong-Fang Wu ◽  
Yun-Juan Wang ◽  
Yao-Yao Duan ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Schiff Base ◽  
Rare Earth ◽  
Schiff Base Ligand ◽  
Near Infrared ◽  
Rare Earth Complexes ◽  
Coordination Environment ◽  
Infrared Luminescence

The magnetic properties of complexes based on a Schiff base ligand H2L can be modulated by subtle changes in the coordination environment resulting from changes in the co-ligand substituents.

Synthesis, structure and near-infrared (NIR) luminescence of three solvent-induced pseudo-polymorphic complexes from a bimetallic Zn–Nd Schiff-base molecular unit

2008 ◽  
Vol 11 (11) ◽  
pp. 1316-1319 ◽  
Author(s):  
Wei-Yu Bi ◽  
Xing-Qiang Lü ◽  
Wen-Li Chai ◽  
Wen-Juan Jin ◽  
Ji-Rong Song ◽  
...  
Keyword(s):  
Schiff Base ◽  
Near Infrared ◽  
Nir Luminescence ◽  
Molecular Unit

Self-assembly of luminescent Zn–Ln (Ln = Sm and Nd) nanoclusters with a long-chain Schiff base ligand

2018 ◽  
Vol 42 (9) ◽  
pp. 7241-7246 ◽  
Author(s):  
Le Bo ◽  
Shiqing Wang ◽  
Desmond Schipper ◽  
Xiaoping Yang ◽  
Ting Zhu ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Self Assembly ◽  
Luminescence Properties ◽  
Nir Luminescence ◽  
Long Chain

Two Zn–Ln rectangular nanoclusters [Zn8Ln4L8(OAc)8](OH)4 (Ln = Sm (1) and Nd (2)) with sizes of 9 × 19 × 28 Å were constructed using a long-chain Schiff base ligand built around a flexible (CH2)3O(CH2)2O(CH2)3 backbone, and their visible and NIR luminescence properties were determined.

NIR luminescence for the detection of metal ions and nitro explosives based on a grape-like nine-nuclear Nd(iii) nanocluster

2019 ◽  
Vol 6 (2) ◽  
pp. 550-555 ◽  
Author(s):  
Hongfen Chen ◽  
Xiaoping Yang ◽  
Dongmei Jiang ◽  
Desmond Schipper ◽  
Richard A. Jones
Keyword(s):  
Schiff Base ◽  
Metal Ions ◽  
Schiff Base Ligand ◽  
Metal Cations ◽  
High Sensitivity ◽  
Nitro Explosives ◽  
Ppm Level ◽  
Nir Luminescence ◽  
Luminescent Sensing

A Nd(iii) nanocluster with long Schiff base ligand shows interesting NIR luminescent sensing of both metal cations and nitro explosives, and exhibits high sensitivity to Cd2+, Zn2+, Cu2+, Co2+ ions and explosive HMX at the ppm level.

scholarly journals Sensitization of NIR luminescence of Yb3+ by Zn2+ chromophores in heterometallic complexes with a bridging Schiff-base ligand

2017 ◽  
Vol 46 (31) ◽  
pp. 10408-10417 ◽  
Author(s):  
Anatoly P. Pushkarev ◽  
Tatyana V. Balashova ◽  
Andrey A. Kukinov ◽  
Maxim V. Arsenyev ◽  
Artem N. Yablonskiy ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Heterometallic Complexes ◽  
Nir Luminescence

Herein, heterometallic complexes containing a bridging Schiff-base ligand (H2L = N,N′-bis(3-methoxy salicylidene) phenylene-1,2-diamine) were synthesized.

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