A5075892371- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Advanced NMR Techniques and Applications
- Electron Spin Resonance Studies
- Organic and Molecular Conductors Research
- Advanced MRI Techniques and Applications
- Organometallic Complex Synthesis and Catalysis
- Supercapacitor Materials and Fabrication
- Metal-Organic Frameworks: Synthesis and Applications
- Covalent Organic Framework Applications
- CO2 Reduction Techniques and Catalysts
- Catalytic Processes in Materials Science
- Ginkgo biloba and Cashew Applications
- Natural Compounds in Disease Treatment
- Nuclear Physics and Applications
Xi'an Jiaotong University
2020-2024
State Key Laboratory of Electrical Insulation and Power Equipment
2024
First Affiliated Hospital of Xi'an Jiaotong University
2022
Shaanxi Institute of International Trade & Commerce
2021
Buchang Pharma (China)
2021
Gigantic coordination molecules assembled from a large number of metal ions and organic ligands are structurally functionally challenging to characterize. Here we show that heterometallic cluster [Ni36Gd102(OH)132(mmt)18(dmpa)18(H2dmpa)24(CH3COO)84(SO4)18(NO3)18(H2O)30]·Br6(NO3)6·(H2O)x·(CH3OH)y, (1, x ≈ 130, y 60), shaped like "Star David", can be synthesized using "mixed-ligand" "sulfate-template" strategy. In terms nuclearity number, 1 is the second largest 3d-4f date. solid state, porous...
The thermostable four-coordinate divalent lanthanide (Ln) bis-amidinate complexes [Ln(Piso)2] (Ln = Tb, Dy; Piso {(NDipp)2CtBu}, Dipp C6H3iPr2-2,6) were prepared by the reduction of parent five-coordinate Ln(III) precursors [Ln(Piso)2I] Dy) with KC8; halide abstraction [H(SiEt3)2][B(C6F5)] gave respective [Ln(Piso)2][B(C6F5)]. All characterized X-ray diffraction, ICP-MS, elemental analysis, SQUID magnetometry, UV–vis-NIR, ATR-IR, NMR, and EPR spectroscopy ab initio CASSCF-SO calculations....
The dicarbollide ion, nido-C2 B9 H112- is isoelectronic with cyclopentadienyl. Herein, we make dysprosiacarboranes, namely [(C2 H11 )2 Ln(THF)2 ][Na(THF)5 ] (Ln=Dy, 1Dy) and [(THF)3 (μ-H)3 Li]2 [{η5 -C6 H4 (CH2 C2 H9 }Dy{η2 :η5 }2 Li] 3Dy show that ligands impose strong magnetic axiality on the central DyIII ion. effective energy barrier (Ueff ) for loss of magnetization can be varied by substitution pattern dicarbollide. This finding demonstrated comparing complexes nido-[o-xylylene-C2 ]2-...
A family of fully sandwiched arachno-lanthanacarborane complexes formulated as {η6 -[μ-1,2-[o-C6 H4 (CH2 )2 ]-1,2-C2 B10 H10 ]2 Ln}{Li5 (THF)10 } (Ln=Tb, Dy, Ho, Er, Y) is successfully synthesized, where the "carbons-adjacent" carboranyl ligand (arachno-R2 -C2 H104- ) bears four negative charges and coordinates to central lanthanide ions using hexagonal η6 C2 B4 face. Thus, cations are pseudo-twelve-coordinate have an approximate pseudo-D6h symmetry or hexagonal-prismatic geometry. As...
Comprehensive Summary One dihydride‐bridged dimeric Dy(III) guanidinate complex, formulated as [{(Me 3 Si) 2 NC(N i Pr) } Dy( μ ‐H)] ( 1Dy ), was successfully isolated and the introduction of hydride bridges significantly reduces intramolecular Dy(III)···Dy(III) distance to only 3.688(1) Å. To investigate effect such a short on magnetism, we also prepared its dibromide‐bridged analogue ‐Br)] 2Dy which has much longer 4.605(4) Surprisingly, demonstrates larger effective energy barrier for...
Due to the industrial requirements for high production and quality of ethylene, efficient purification ethylene from acetylene ethane is prime importance but challenging. Dynamic metal-organic frameworks (MOFs) have demonstrated intriguing structural dynamics diverse applications recently. Among them, although a few flexible ones exhibited interesting capability, rigid were yet barely investigated such purpose. In this regard, cerium(III)-based MOF was solvothermally synthesized, which...
Here we use a pseudoallyl ligand, N,N′-chelating amidinate (Am), together with pentamethylcyclopentadienyl (Cp*) to give two dysprosium(III) single-molecule magnets (SMMs): [{(AmiPr)DyCp*(μ-Cl)}2] and [AmdippDyCp*(Cl)(μ-Cl)Li(THF)3] distinct energy barriers (Ueff) of 97 472 K, respectively. The latter Ueff value is similar the homoleptic Cp*-based Dy-SMM.
Ten lanthanacarborane complexes were synthesized to study the rare B−Hδ−∙∙∙Mn+ inverse hydrogen bonds (IHBs). The average bonding energy of B−Hδ−∙∙∙Ln3+ is theoretically determined be larger than 24 kJ/mol, which comparable moderately strong (21–56 kJ/mol). In addition NMR and IR, magnetometer was used exchange-coupling interaction via such IHBs in detail, coupling constant −2.0 cm−1, enough compare with single-atom bridged dysprosium(III) complexes. Two imidazolin-iminato incorporated have...
Arene capped inverse-sandwich rare earth complexes stabilized by Ln–[C 6 H ] 4− covalent δ-bonding.
Main observation and conclusion Two chelating guanidinate‐based dysprosium(III) complexes, namely the monomeric {(Me 3 Si) 2 NC(N i Pr) } Dy( μ ‐Cl) Li(THF) 1 dimeric [{(Me ‐Cl)] 2, have been confirmed to be single‐molecule magnets. Moreover, alteration from leads an obvious mitigated quantum tunnelling of magnetization at zero field hysteresis loop much enhanced magnetic relaxation barrier (up 312 K). 5% dilution with yttrium(III) analogue for shows no clear change hysteresis, indicating...
Abstract The dicarbollide ion, nido ‐C 2 B 9 H 11 2− is isoelectronic with cyclopentadienyl. Herein, we make dysprosiacarboranes, namely [(C ) Ln(THF) ][Na(THF) 5 ] (Ln=Dy, 1Dy and [(THF) 3 (μ‐H) Li] [{η 6 4 (CH C }Dy{η :η } 3Dy show that ligands impose strong magnetic axiality on the central Dy III ion. effective energy barrier ( U eff for loss of magnetization can be varied by substitution pattern dicarbollide. This finding demonstrated comparing complexes ‐[ o ‐xylylene‐C , which a 430(5)...
The thermostable four-coordinate divalent lanthanide (Ln) bis-amidinate complexes [Ln(Piso)2] (Ln = Tb, Dy; Piso {(NDipp)2CtBu}, Dipp C6H3iPr2-2,6) were prepared by the reduction of parent five-coordinate Ln(III) precursors [Ln(Piso)2I] Dy) with KC8; halide abstraction [H(SiEt3)2][B(C6F5)] gave respective [Ln(Piso)2][B(C6F5)]. All characterized single crystal and powder XRD, SQUID magnetometry UV-vis-NIR, ATR-IR, NMR EPR spectroscopy, ab initio CASSCF-SO calculations. These data consistently...
A family of fully sandwiched arachno-lanthanacarborane complexes formulated as {6-[µ-1,2-[o-C6H4(CH2)2]-1,2-C2B10H10]2Ln}{Li5(THF)10} (Ln = Tb, Dy, Ho, Er, Y) is successfully synthesized, where the “carbons-adjacent” carboranyl ligand (arachno-C2B10H104−) bears four negative charges and coordinates to central lanthanide ions using hexagonal 6C2B4 face. Thus, cations are pseudo-twelve-coordinate have an approximate local D6h symmetry or hexagonal-prismatic geometry. As crystal field effect...
Comprehensive Summary Two families of cyclopentadienyl (Cp)/carboranyl heteroleptic sandwiched organolanthanide complexes, namely [Ln{ η 5 : σ ‐Me 2 C(C H 4 )(C B 10 )} ][Li(DME) 3 ] ( 1Ln , Ln = Tb, Dy, Ho, Er) and [2‐THF‐2'‐( μ ‐Cl)Li(THF) ‐2,2'‐Ln( nido ‐1,7‐C 9 11 )Cp*] 2Dy ), were synthesized. Family has been proposed based on the mixing‐ligands idea by linking Cp ‐dicarborllide. However, carborane cage [Me )] 2− deprotons forms a mono‐C − anion rather than deboron to form dicarborllide...