A5025389683- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Crystallography and molecular interactions
- Electron Spin Resonance Studies
- Metal complexes synthesis and properties
- Organic and Molecular Conductors Research
- Advanced Nanomaterials in Catalysis
- Metal-Catalyzed Oxygenation Mechanisms
- Molecular Sensors and Ion Detection
- Covalent Organic Framework Applications
- Chemical Thermodynamics and Molecular Structure
- Membrane Separation and Gas Transport
- Electrochemical sensors and biosensors
- Energetic Materials and Combustion
- Analytical chemistry methods development
- Advanced MRI Techniques and Applications
- Porphyrin and Phthalocyanine Chemistry
- Radioactive element chemistry and processing
- Advanced NMR Techniques and Applications
- Analytical Chemistry and Chromatography
- Thermal and Kinetic Analysis
- thermodynamics and calorimetric analyses
Ningxia Medical University
2019-2024
Yinchuan First People's Hospital
2016-2021
Ministry of Education of the People's Republic of China
2016-2019
Northwest University
2016-2019
China XD Group (China)
2019
Ningxia University
2014-2018
Universitat de València
2018
Parc Científic de la Universitat de València
2018
A novel two-dimensional (2D) coordination polymer, [Co(ppad)2]n (1), resulted from the assembly of Co(II) ions based on a versatile ligand termed N(3)-(3-pyridoyl)-3-pyridinecarboxamidrazone. Alternating/direct-current magnetic studies compound 1 indicate that spatially separated high-spin act as single-ion magnets (SIMs). The present work represents first case 2D Co(II)-based SIM composed monocomponent organic spacer.
Stable Ln(<sc>iii</sc>)-MOFs with a versatile 2-(4-pyridyl)-terephthalic acid ligand can be used as multifunctional sensing platform for Fe<sup>3+</sup>, Cr<sub>2</sub>O<sub>7</sub><sup>2−</sup>, and nitrofuran detection.
Two β-diketone mononuclear Dy(III) compounds, formulated as Dy(BTFA)3(H2O)2 (1) and Dy(BTFA)3(bpy) (2) (BTFA = 3-benzoyl-1,1,1-trifluoroacetone, bpy 2,2′-bipyridine), were prepared. Compound 1 can be identified to transform 2 in the attendance of coligand, when local geometry symmetry eight-coordinated ion changes from a dodecahedron (D2d) square antiprism (D4d) 2. Fine-tuning structure aroused by auxiliary ligand has dramatical impact on magnetic properties compounds Magnetic investigations...
Employing two benzoate derivatives with different numbers of non-coordinated fluoro-substituents, 2-fluorobenzoic acid (2-Hfba) and 2,6-difluorobenzoic (2,6-Hdfba), new azido-copper coordination polymers, [Cu(2-fba)(N3)(CH3OH)]n (1) [Cu(2,6-dfba)(N3)(CH3OH)]n (2), have been successfully isolated, then structurally magnetically investigated. Single crystal structure analysis demonstrates that the metal cations in resulting compounds are connected by alternating triple-bridge μ-1,1-azido,...
Based on the solvent-induced effect, three new azido-copper coordination polymers--[Cu(2-na)(N3)] (1), [Cu(2-na)(N3)] (2), and [Cu(2-na)(N3)(C2H5OH)] (3) (where 2-na = 2-naphthoic acid)--have been successfully prepared. Structure analysis shows that Cu(II) cations in compounds 1-3 present tetra-, penta-, hexa-coordination geometries, respectively. Compound 1 is a well-isolated one-dimensional (1D) chain with EO-azido group, while 2 an isomer of exhibits two-dimensional (2D) layer involving...
By means of the facile chemistry, structural assembly, and transformation four mononuclear Dy(III) complexes, Dy(bpad)3·CH3OH·H2O (1), Dy(bpad)2(H2O)2·NO3 (2), [Dy(bpad)2(tmhd)] (3), [Dy(bpad)2(btfa)] (4) (Hbpad = N3-benzoylpyridine-2-carboxamidrazone, tmhd 2,2,6,6-tetramethylheptane-3,5-dione, btfa 3-benzoyl-1,1,1-trifluoroacetone), with distinct architectures local symmetries were established. The disparity coordination geometries around ion among these complexes impacts strength crystal...
A mononuclear Dy(III) complex, with formula [Dy(Dicnq)(TFNB)3] (1), is synthesized through a self-assembly 4,4,4-trifluoro-1-(2-naphthyl)-1,3-butanedione (TFNB) and 6,7-dicyanodipyrido [2,2-d:2′,3′-f] quinoxaline (Dicnq) ligands. Single-crystal structure determination reveals that ion in...
Abstract A family of four mononuclear Dy III β‐diketonate complexes with formulas [Dy(tmhd) 3 (Br 2 ‐bpy) ( 1) , (Br‐bpy)] ), (dppz)] and (mcdpq)] 4 ) (tmhd=2,2,6,6‐tetramethyl‐3,5‐heptanedione, Br ‐bpy=5,5′‐dibromo‐2,2′‐bipyridine, Br‐bpy=5‐bromo‐2,2′‐bipyridine, dppz=dipyrido [3,2‐ a :2′,3′‐c]phenazine, mcdpq=2‐methoxyl‐3‐cyanodipyrido[3,2‐ f :2,3′‐h]quinoxaline) were prepared by modifying the capping N‐donor coligands. centers in these feature an N O 6 octacoordinate environment distorted...
Pillar-layered structures represent a significant category within MOFs; however, the exploration of their chemical stability and systematic functionalization has been largely neglected. Herein, we fabricated pillar-layered MOF (Zn-LC–C) with fsc topology, utilizing tetradentate carboxylic ligand bipyridine Zn(II) ions via approach. Notably, this topological structure displays markedly superior compared typical MOFs pcu topology. In addition, by introducing unsaturated bonds to modify...
The zero-field single-molecule magnet behaviour and luminescence properties of 3D Ln-MOFs with a versatile pyridyl-decorated dicarboxylate.
Single-ion-magnet-type field-induced double magnetic relaxation was observed in a one-dimensional cobalt(<sc>ii</sc>) coordination polymer which shows easy-axis anisotropy with <italic>D</italic> = −33.9 cm<sup>−1</sup> and an energy barrier of <italic>U</italic><sub>eff</sub> 38.8 K.
Complexation of dysprosium(iii) ions with a multidentate hydrazone ligand, N-[(E)-pyridin-2-ylmethylideneamino]pyridine-2-carboxamide (L), in the presence different β-diketonate coligands, leads to formation two novel DyIII dimers, formulas Dy2(BTFA)4(L)2 (1) and Dy2(TTA)4(L)2 (2) (BTFA = 3-benzoyl-1,1,1-trifluoroacetone TTA 4,4,4-trifluoro-1-(2-thienyl)-1,3-butanedionate). They exhibit slightly coordination geometries around centers discrepant binuclear motifs - as result altering coligands...
A series of 3D homologous metal–organic frameworks, [M(H0.5L)2] [M = Dy (1), Ho (2), Yb (3), Sm (4), Gd (5), and Y (6); H2L 5-(1H-imidazol-1-yl)isophthalic acid], were isolated. In these complexes, the metal centers behave as hexacoordinated environments with distorted octahedral geometries, which is unusual in lanthanide series, linking to each other producing a fascinating architecture. Magnetically, 1 features field-driven dual-magnetic relaxation, rarely observed high-dimensional...
Substituent change modulates the coordination symmetries and magnetic dynamics of five mononuclear β-diketonate-Dy(<sc>iii</sc>) complexes with capping N-donor coligands, which is studied by combination investigation <italic>ab initio </italic>calculation.
In the presence of different nitrogen-rich ligands, two energetic MOFs with formulas [Ag(tza)]n (1) and [Ag(atza)]n (2) (Htza = tetrazole-1-acetic acid Hatza (5-amino-1H-tetrazole-1-yl) acetic acid) were successfully synthesized characterized. X-ray single crystal structure analysis shows that both 1 2 have 2D layer-like topologies. The experimental theoretical evaluations reveal promising properties compounds, such as prominent heats detonation, high thermal stabilities, good sensitivities...
Two triple-bridged azido-Cu(<sc>ii</sc>) chains exhibit distinct magnetic behaviors.
A triple-bridged Cu(<sc>ii</sc>) chain compound with μ-1,1-(EO)azido, <italic>syn</italic>,<italic>syn</italic>-carboxylate, and μ2-ethanol linkers exhibits slow-relaxation long-range magnetic ordering.
A stable In(<sc>iii</sc>)-MOF with a versatile 5-(1<italic>H</italic>-imidazol-1-yl)isophthalic acid ligand can be used as fluorescent sensor for Fe<sup>3+</sup> detection.
Two novel dual-photosensitized stable complexes, namely [Eu(dpq)(BTFA)3] (1) and [Tb(dpq)(BTFA)3] (2), have been successfully assembled via a mixed ligand approach using dipyrido[3,2-d:2',3'-f]quinoxaline (dpq) 3-benzoyl-1,1,1-trifluoroacetone (BTFA). The crystallographic data reveal mononuclear lanthanide cores in both 1 2, which each eight-coordinated Ln(III) ion is located slightly distorted dodecahedron (D2d). room-temperature photoluminescence spectra of complexes 2 indicate that BTFA...
Employing mixed β-diketonate and bpy ligands leads to a mononuclear Dy(<sc>iii</sc>) SIM, of which the magneto-structural correlation is elucidated by magnetic theoretical studies, as well comparative study reported analogues.