A5100694734- Metal complexes synthesis and properties
- Chemical Thermodynamics and Molecular Structure
- Crystal structures of chemical compounds
- Free Radicals and Antioxidants
- Thermal and Kinetic Analysis
- Magnetism in coordination complexes
- Synthesis and biological activity
- Synthesis and Properties of Aromatic Compounds
- Organometallic Compounds Synthesis and Characterization
- Metal-Organic Frameworks: Synthesis and Applications
- Crystallography and molecular interactions
- Lanthanide and Transition Metal Complexes
- thermodynamics and calorimetric analyses
- Chemical and Physical Properties in Aqueous Solutions
- Molecular Sensors and Ion Detection
- Metal-Catalyzed Oxygenation Mechanisms
- Organic Chemistry Cycloaddition Reactions
- Synthesis and characterization of novel inorganic/organometallic compounds
- Axial and Atropisomeric Chirality Synthesis
- Synthesis of Organic Compounds
- Molecular Junctions and Nanostructures
- Synthesis and Characterization of Heterocyclic Compounds
- Catalytic C–H Functionalization Methods
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Quinazolinone synthesis and applications
Lanzhou Jiaotong University
2008-2024
The First People’s Hospital of Lianyungang
2024
Xiangnan University
2009-2024
East China University of Science and Technology
2015-2023
Henan University
2009-2022
Kaifeng University
2017
Chenzhou First People's Hospital
2015
Lanzhou University
2015
Hunan Rare Earth Metal Material Research Institute
2013
Hebei Normal University
2010
Three rare heteromultinuclear complexes, ∞ [NiL(4,4′‐bipy)Pr (NO 3 ) ]·(CH 2 CHOH ( 1 ), [{CuLSm } (4,4′‐bipy)]·CH OH and [{CuL (CH CH OH)Eu ] with a symmetrical salamo‐like hexadentate ligand H L have been synthesized, characterized by FT‐IR, UV–vis X‐ray crystallography. Complex is 1D coordination polymer constructed from heterobimetallic [Ni(L)Pr units which are connected the exo‐dentate 4,4′‐bipy bearing nitrogen‐donor atoms. heterotetranuclear dimer based on [Cu(L)Sm moieties linked...
Two unexpected tetranuclear supramolecular boxes, [Zn4(L')4(CH3OH)2]·2CH3OH (1) and [Co4(L)2(L')2(CH3OH)2]·acetone (2), with M4(μ3-O)2(μ2-O)4 core were obtained through reacting coumarin Schiff base H2L (H2L = 4-hydroxy-3-((2-hydroxyphenyl-imino)-methyl)-2hchrome-2-one) Zn(OAc)2·4H2O Co(OAc)2·4H2O, respectively. Interestingly, the original ligand (H2L) has changed into a new structure (H2L') in process of forming single crystals. The structures 1 2 characterized by X-ray crystal diffraction....
Abstract A new Cu(II) complex, [Cu(L)2], has been synthesized via the complexation of copper(II) acetate monohydrate with a oxime-type ligand (HL = 1-(3-{[(E)-3-bromo-5-chloro-2-hydroxybenzylidene]amino}phenyl)ethanone oxime). X-ray crystallographic analysis reveals that complex is mononuclear complex. The atom four-coordinated by phenolate O atoms and imine N from two ligands, in square-planar geometry which dihedral angle coordination plane (Cu1N1O1 Cu1N#1O#1) 0°. crystal packing shows...
A series of homo‐ and hetero‐trinuclear cobalt(II) complexes [Co 3 (L)(OAc) 2 (CH CH OH)(H O)] ( 1 ), Ba(L)(OAc) ] ) Ca(L)(OAc) ]·CHCl containing an acyclic naphthalenediol‐based ligand H 4 L were synthesized. All the three characterized by elemental analyses, IR, UV – vis spectra single crystal X‐ray diffraction analyses. Comparative studies structures spectroscopic properties are carried out on these complexes. show catechol oxidase activities in MeCN. Using spectroscopy, we monitored...
A Pd(OAc)2-catalyzed divergent synthesis of multisubstituted imidazoles and quinazolines from N-allylamidines has been developed. In the presence oxidant O2 air and/or a ligand Pd(OAc)2, were obtained. Nonetheless, under microwave (MW) irradiation in sealed system, as major products produced.
In this work, the racemate and mesomer of thiophene-based naphthalene-cored double helicenes (1) were obtained efficiently by one-pot photocyclization 1,1,2,2-tetrakis(dithieno[2,3-b:3',2'-d]thiophen-2-yl)ethene in presence iodine dry benzene. The structure meso-1a was confirmed single crystal X-ray analysis. chiral resolution carried out HPLC, properties, such as CD spectra, optical rotations, half-life enantiomers characterized.
Abstract Novel strategies still need to be proposed that can used identify and detect toxic environmental pollutants. In this paper, two channels of colorimetry fluorescence ‘turn‐on’ fluorescent probe 1 (7‐hydroxy‐8‐[(2‐hydroxy‐phenylimino)‐ methyl]‐4‐methylbenzopyran‐2‐one) for the simple yet highly selective detection CN¯ have been successfully designed synthesized. Crystal features were defined using X‐ray single crystal diffractometry. Probe showed a strongly colorimetric response...
Two new Co(II) complexes, [{Co(L)}2{Co(Pic)2(CH3OH)2}] (1) and [{CoL(μ-OAc)}2Co] (2), where H2L = 2,2′-[Ethylenedioxybis(nitrilomethylidyne)]dinaphthol, were designed, synthesized characterized by elemental analysis, FT-IR spectra, UV-Vis X-ray crystallography. Complex 1 consists of two [CoL] one [Co(Pic)2(CH3OH)2] (Pic picrate) units in the unit, atom is tetra-coordinated with a slightly distorted square-planar geometry. In hexa-coordinated octahedral Meanwhile complex 2, acetate ions...
Based on the selectivity of deprotonation 5,5′-bistrimethylsilyl-2,3′-bithiophene (4) in presence n-BuLi, three new cyclooctatetrathiophenes (COThs), COTh-1, COTh-2, and COTh-3 have been efficiently developed via intermolecular or intramolecular cyclizations. Their crystal structures clearly show that different connectivity sequence thiophene rings molecules. The CV data UV–vis absorbance spectra COThs are also described. In addition, time-dependent density functional theory (TDDFT)...
Synthesis, crystal structure and biological properties of a bismuthoxide Schiff-base complex derived from salen-like ligands bismuth(<sc>iii</sc>) salt.
Abstract Novel 4,4′‐dichloro‐2,2′‐[ethylenedioxybis(nitrilomethylidyne)]diphenol (H 2 L) and its complexes [CuL] {[CoL(THF)] (OAc) Co} have been synthesized characterized by elemental analyses, IR, 1 H‐NMR X‐ray crystallography. forms a mononuclear structure which may be stabilized the intermolecular contacts between copper atom (Cu) oxygen (O3) to form head‐to‐tail dimer. In Co}, two acetates coordinate three cobalt ions through CoOCOCo bridges four µ‐phenoxo atoms from [CoL(THF)] units...
Abstract The design and synthesis of homochiral double helicates are reported that constructed by means Ag‐induced supramolecular self‐sorting saddle‐shaped cyclooctatetrathiophene‐based pyridine ligands ( 1 2 ). intramolecular S⋅⋅⋅N interaction ensures the thiophene rings in coplanar syn ‐locked structures. In presence Ag + , racemic only afforded helicates, indicating effective chiral process under influence interaction. X‐ray crystal structure reveals a pair R,R,R,R )‐ S,S,S,S ....
Abstract Cyclooctatetrathiophene ( COTh ) shows a novel saddle‐shaped molecular structure, which has been applied in organic synthesis and material science. In this paper, the design of s their derivatives were described. The include mainly four types. One is isomer with different sequences thiophene rings; second oligomer such as dimmer dendrimer; third derivative functionalized by substituent groups at α positions; last one planarized sulfur, silicon or sulfone bridges. applications...
Abstract C 17 H 14 Cl 3 N 2 O 4 , orthorhombic, Fdd 2, a = 32.980(2) Å, b 24.6827(18) c 4.4872(3) V 3652.8(4) Å Z 8, R gt (F) 0.0783, wR ref (F ) 0.1862, T 293(2) K.
Two new Schiff‐base bismuth (III) complexes were prepared by an equivalent reaction between ligand and Bi (NO 3 ) •5H 2 O with the assistance of Mannitol. The chemical structures two characterized spectroscopic studies (FT‐IR, NMR, MS), elemental analysis, single‐crystal X‐ray diffraction. ligand‐to‐metal ion ratio was found to be 1:1 in complexes. During formation complexes, Schiff bases changed from amidic forms iminol forms, resulting tautomers could coordinate ions produce dinuclear III...
To compare the clinical efficacy of unilateral biportal endoscopy technology (UBE) with anterior cervical discectomy and fusion(ACDF)for treatment single-segment spondylotic radiculopathy (CSR). Retrospective analysis 60 patients CSR, which 30 were treated ACDF (group A) UBE B). Cision length, operation time, intraoperative blood loss, hospitalization duration, postoperative complications preoperative VAS, NDI scores, height stability liability gap compared between two groups. Compared A...