Thermally Activated Fluorescence vs Long Persistent Luminescence in ESIPT-Attributed Coordination Polymer

2022 ◽  
Author(s):  
Peng-Yan Fu ◽  
Bao-Ning Li ◽  
Qiang-Sheng Zhang ◽  
Jun-Ting Mo ◽  
Shi-Cheng Wang ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Persistent Luminescence ◽  
Thermally Activated

scholarly journals New Silver(I) Coordination Polymer with Fe4 Single-Molecule Magnets as Long Spacer

2018 ◽  
Vol 4 (4) ◽  
pp. 43 ◽  
Author(s):  
Luca Rigamonti ◽  
Manuela Vaccari ◽  
Fabrizio Roncaglia ◽  
Carlo Baschieri ◽  
Alessandra Forni
Keyword(s):  
Coordination Polymer ◽  
Single Molecule ◽  
Building Blocks ◽  
Zero Field ◽  
Single Molecule Magnets ◽  
Long Distance ◽  
Linear Arrangement ◽  
Thermally Activated ◽  
Supramolecular Architectures ◽  
Donor Nitrogen

In continuation of our work on supramolecular architectures of single-molecule magnets (SMMs) as a promising strategy in developing their magnetic performance, in this paper we report the synthesis and single crystal X-ray structure of the centered triangular tetrairon(III) SMM, [Fe4(PhpPy)2(dpm)6], Fe4 (Hdpm = dipivaloylmethane, H3PhpPy = 2-(hydroxymethyl)-2-(4-(pyridine-4-yl)phenyl)propane-1,3-diol), and its assembly in the coordination polymer {[Fe4(PhpPy)2(dpm)6Ag](ClO4)}n, Fe4Ag, upon reaction with silver(I) perchlorate. Thanks to the presence of the pyridyl rings on the two tripodal ligands, Fe4 behaves as divergent ditopic linker, and due to the Fe4:AgClO4 1:1 ratio, Fe4Ag probably possesses a linear arrangement in which silver(I) ions are linearly coordinated by two nitrogen atoms, forming 1D chains whose positive charge is balanced by the perchlorate anions. The stabilization of such a polymeric structure can be ascribed to the long distance between the two donor nitrogen atoms (23.4 Å) and their donor power. Fe4Ag shows slow relaxation of the magnetization which follows a thermally activated process with Ueff/kB = 11.17(18) K, τ0 = 2.24(17) 10−7 s in zero field, and Ueff/kB = 14.49(5) K, τ0 = 3.88(8) 10−7 s in 1-kOe applied field, in line with what reported for tetrairon(III) SMMs acting as building blocks in polymeric structures.

Thermally activated 3D to 2D structural transformation of [Ni2(en)2(H2O)6(pyr)]·4H2O flexible coordination polymer

2015 ◽  
Vol 149-150 ◽  
pp. 105-112 ◽  
Author(s):  
Nebojša N. Begović ◽  
Vladimir A. Blagojević ◽  
Sanja B. Ostojić ◽  
Aleksandra M. Radulović ◽  
Dejan Poleti ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Structural Transformation ◽  
Thermally Activated

Recent advances in persistent luminescence based on molecular hybrid materials

2021 ◽  
Author(s):  
Rui Gao ◽  
Mohamad S. Kodaimati ◽  
Dongpeng Yan
Keyword(s):  
Hybrid Materials ◽  
Room Temperature ◽  
Delayed Fluorescence ◽  
Luminescent Materials ◽  
Persistent Luminescence ◽  
Room Temperature Phosphorescence ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Theoretical Approaches ◽  
Recent Advances

In this review, we summarize recent advances in establishing persistently luminescent materials from the view of examining experimental and theoretical approaches to room-temperature phosphorescence and thermally-activated delayed fluorescence.

Thermally activated processes in an organic long-persistent luminescence system

Nanoscale ◽  
2021 ◽  
Author(s):  
Kazuya Jinnai ◽  
Naohiro Nishimura ◽  
Chihaya Adachi ◽  
Ryota Kabe
Keyword(s):  
Charge Separation ◽  
Thermal Activation ◽  
Charge Recombination ◽  
Persistent Luminescence ◽  
Charge Accumulation ◽  
Thermally Activated ◽  
System P ◽  
Activated Processes ◽  
Induced Charge

Organic long-persistent luminescence (OLPL) was achieved through photo-induced charge separation, charge accumulation, and emission from charge recombination. The presence of thermal activation processes in the OLPL system was confirmed.

Thermally activated delayed fluorescent (TADF) coordination polymer with the generation of singlet oxygen

2019 ◽  
Vol 75 (6) ◽  
pp. 758-767 ◽  
Author(s):  
Xiu-Hui Ren ◽  
Gang-Yuan Li ◽  
Hua Du ◽  
Jian-Ping Ma ◽  
Yan Geng ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Singlet Oxygen ◽  
Crystallographic Analysis ◽  
Delayed Fluorescence ◽  
Thermally Activated Delayed Fluorescence ◽  
One Dimensional ◽  
Thermally Activated ◽  
Dimensional Network ◽  
Stacking Pattern ◽  
Donor Acceptor

4,4′-{9,9′-Spirobi[10H-acridine]-10,10′-diyl}dibenzoic acid (L, C29H26N2O4) was designed and synthesized as a new donor–acceptor motif molecule. Due to the large dihedral angle between the planes of the carboxyphenyl group and the spiroacridine moiety, L possess thermally activated delayed fluorescence (TADF). By applying L as a ligand and using Cd as a metal connector, we synthesized the coordination polymer catena-poly[hemi-μ-aqua-aqua(μ3-4,4′-{9,9′-spirobi[10H-acridine]-10,10′-diyl}dibenzoato)cadmium(II)], [Cd(C29H24N2O4)(H2O)1.5] n , (I). X-ray crystallographic analysis revealed that this coordination polymer exhibits one-dimensional chains constructed from molecular twist-ring moieties, with Cd2O11 clusters as the connection nodes. The stacking pattern of the two-dimensional network was formed by C—H...π interactions in the solid state. Similar to L, (I) presents a sky-blue TADF emission, together with a photoluminescence quantum yield (PLQY) of 40%. It is worth noting that the photocatalytic activity toward the generation of singlet oxygen of this coordination polymer is confirmed.

scholarly journals Organic Long‐Persistent Luminescence from a Thermally Activated Delayed Fluorescence Compound

2020 ◽  
Vol 32 (45) ◽  
pp. 2003911
Author(s):  
Wenbo Li ◽  
Zhaoning Li ◽  
Changfeng Si ◽  
Michael Y. Wong ◽  
Kazuya Jinnai ◽  
...  
Keyword(s):  
Delayed Fluorescence ◽  
Persistent Luminescence ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated

Substituted imidazole copper(II) complexes: The coordination polymer complex tetrakis N -methylimidazole copper(II) sulfate

2003 ◽  
Vol 56 (8) ◽  
pp. 647-653 ◽  
Author(s):  
Lan Liu ◽  
Stan Duraj ◽  
Phillip E. Fanwick ◽  
Maria T. Andras ◽  
Aloysius F. Hepp
Keyword(s):  
Coordination Polymer ◽  
Polymer Complex

Thermally activated flow of β-titanium and β-titanium-hydrogen alloys

2000 ◽  
Vol 80 (12) ◽  
pp. 2813-2825
Author(s):  
O. N. Senkov, J. J. Jonas, F. H. Froes
Keyword(s):  
Thermally Activated
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