A5102128992- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Crystallography and molecular interactions
- Magnetism in coordination complexes
- Metal-Organic Frameworks: Synthesis and Applications
- Metal complexes synthesis and properties
- Lanthanide and Transition Metal Complexes
- Silicone and Siloxane Chemistry
- Crystal structures of chemical compounds
- Polymer Nanocomposites and Properties
- Polymer composites and self-healing
- Synthesis and properties of polymers
- Crystal Structures and Properties
- Molecular Sensors and Ion Detection
- Inorganic Fluorides and Related Compounds
- biodegradable polymer synthesis and properties
- Luminescence and Fluorescent Materials
- Biopolymer Synthesis and Applications
- Synthetic Organic Chemistry Methods
- Metal and Thin Film Mechanics
- Advanced Polymer Synthesis and Characterization
- Flame retardant materials and properties
- Natural Fiber Reinforced Composites
- Carbon dioxide utilization in catalysis
- Photopolymerization techniques and applications
Chengdu University of Traditional Chinese Medicine
2024
Chongqing University of Arts and Sciences
2013-2020
Chongqing University
2012
East China University of Science and Technology
2006-2011
Dalian Maritime University
2010
University of Science and Technology Beijing
2002
Nankai University
2000-2001
Chongqing University of Education
2001
Centre National de la Recherche Scientifique
1986-1988
Université de Bordeaux
1988
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructure and magnetism of the first alternating bimetallic chain compound MnCu(obp)(H2O)3.cntdot.H2O (obp = oxamidobis(propionato))Yu Pei, Olivier Kahn, Jorunn Sletten, Jean Pierre Renard, Roland Georges, Claude Gianduzzo, Jacques Curely, Qiang XuCite this: Inorg. Chem. 1988, 27, 1, 47–53Publication Date (Print):January 1988Publication History Published online1 May 2002Published inissue 1 January...
Silicon carbide (SiC), a wide-bandgap semiconductor, is gaining importance in quantum technologies due to its promising color centers. Among SiC polytypes, 4H-SiC stands out with wide bandgap and low impurities, making it ideal for center research. Femtosecond laser direct writing enables precise creation of centers, offering nanoscale accuracy. This study explores the optical properties structural changes induced by writing. Techniques such as Raman spectroscopy, atomic force microscopy,...
A series of polyurethaneurea (PUU) aqueous dispersions, which were stable at ambient temperature for more than 1 year, prepared with C 36 ‐dimer‐fatty‐acid‐based polyester polyol, isophorone diisocyanate, dimethylol propionic acid, and ethylenediamine. The particle size all these PUU (DPU) dispersions (<100 nm) was less that comparable specimens, is, poly‐(neopentyl glycol adipate) polyester‐polyol‐based (APU) the polydispersity index very narrow (≤1.13). films DPU exhibited excellent...
Europium (III), acrylic acid and 1,10-phenanthroline three ternary complexes was synthesized with (AA) as the first ligand second ligand. Tri-cellulose acetate (TCA)/Eu 3 Phen hybrid material prepared by method of solution blend, dimethyl sulfoxide (DMSO) mutual solvent. The Fourier transform infrared spectroscopy (FT-IR) results confirmed molecular structure Eu complex formation doping TCA/Eu material.
Stable one component heat cured polyurethane-acrylate (PUA) sealants were synthesized using dicumyl peroxide (DCP) as an initiator with high decomposition temperature. The PUA through the reaction of hexamethylene diisocyanate (HDI) poly(ethylene buthlene glycol adipate) and 2-hydroxyethyl methacrylate (HEMA), stably stored under accelerated aging test at 60°C . structure polyurethane prepolymer, sealant its film characterized by FT-IR, 1 H-NMR Raman spectra.
A new poly(ester amide)s (PEA) derived from L-lactic acid and L- phenylalanine have been synthesized by melting copolymerization with p-toluenesulfonic (TSA), stannous chloride (SnCl2) as catalyst. The products were analyzed NMR, FT IR. effects of the content L-phenylalanine on copolymers structure studied. Being phosphate buffered saline (pH=7.2) degradation solution, it had found that rate speed up increasing phenylalanine.
Abstract Preparation of second‐order nonlinear optical (NLO) materials based on cellulose diacetate and melamine derivatives was attempted. The NLO chromophore DR19 incorporated into the crosslinking network resulting from reaction with trimethylolmelamine or hexamethylolmelamine. poled cured exhibited electrooptic coefficient ( r 13 ) values 1.11 1.03 pm/V, respectively, at a laser wavelength 1550 nm, modulation frequency 12.7 kHz. decreased to 80 81.5% initial after 4 days. transmission...
The crystal structure of the title compound, [CoCl-(C16H26N6)]ClO4, consists discrete [CoCl(C16H26N6)]+ cations and perchlorate anions. five-coordinate CoII atom has four nitrogen donors from new mesocyclic ligand 1,5-bis(1-methyl-1H-imidazol-2-ylmethyl)-1,5-diazacyclooctane [Co—N 2.046 (3)–2.214 (4) Å], a chloride anion at apical site [Co—Cl 2.3184 (13) Å]. coordination geometry complex is essentially square pyramidal. takes boat–chair configuration two imidazole pendants are not...
Abstract C 22 H 30 N 2 O 4 S , monoclinic, P 1 / c a = 13.6316(5) Å, b 5.7462(2) 14.1562(5) β 91.758(4)°, V 1108.33(7) Å 3 Z 2, R gt (F) 0.0464, wR ref (F ) 0.1249, T 293 K.
Abstract C 18 H 13 N 5 , monoclinic, P 2 1 / n a = 10.2582(4) Å, b 13.6507(4) c 20.7982(9) β 101.194(4)°, V 2857.01(19) Å 3 Z 8, R gt ( F ) 0.0594, wR ref 0.1536, T 173 K.
Abstract C 46 H 32 Cu 2 N 8 O 12 , monoclinic, P 1 / c a = 9.5638(9)Å, b 20.2142(19) Å, 12.0825(11) β 94.696(1)°, V 2328.0(4) Å 3 Z 2, R gt ( F ) 0.0273, wR ref 0.0711, T 100 K.
Abstract C 10 H 24 Cl 2 N 4 NiO 8 , orthorhombic, Cmc2 1 (no. 36), a = 9.657(2) Å, b 14.916(4) c 24.599(8) V 3543.3 Å 3 Z 8, R gt (F) 0.0351, wR ref (F ) 0.0899, T 293 K.
The title complex, [Zn2(C13H19N2O)2Cl2]·2C3H6O, resides on a crystallographic inversion center. two ZnII centers bridged by the phenoxo groups are in pentacoordinated distorted square-pyramidal coordination environments with an intramolecular Zn⋯Zn distance of 3.175 (3) Å. mesocyclic ligand takes boat–chair conformation and H atom from 1,5-diazacyclooctane ring effectively blocks axial site opposite Cl to form ZnN2O2Cl geometry. crystal structure is stabilized N—H⋯O hydrogen bond between...
Abstract A penta‐coordinated Ni(II) complex with a 1,5‐diazacyclooctane (DACO) ligand functionalized by two imidazole donor pendants, [NiL 1 Cl] (ClO 4 ) H 2 O (1) (where L = 1,5‐bis (imidazol‐4‐ylmethyl)‐l,5‐diazacyclooctane) has been synthesized and characterized X‐ray diffraction, infrared spectra, elemental analyses, conductance, thermal analyses UV‐Vis techniques. Complex crystallizes in triclinic crystal system, P‐l space group 0.74782(7), b 1.15082 (10), c 1.23781(11) nm, α 82.090(2),...
Poly (ethylene terephthalate) (PET)/SiO2/TiO2 hybrid composites were prepared via the Sol-gel method that involves two steps: as-prepared PET was dissolved into mixed solution of phenol and dichloroethane by adjusting pH value reaction system to 2～3 using acetic acid; then both tetraethylorthosilicate (TEOS) tetrabutyltitanate (TBT) successively added followed Sol-Gel reactions at strong stirring form three PET/SiO2/TiO2 with cohydrolysis-condensation reaction. The intrinsic viscosity...
The ethylene-propylene polymer (PP) was modified by using a rare earth β-nucleating agent (WBG-II). crystallization characteristics of PP induced WBG-II were investigated through the wide-angle X-ray diffraction (WAXD). effect on mechanical property under low temperature also researched. results confirmed that can change crystal structure and induce β-form crystals in to develop. Moreover, room temperature, with increment WBG-II, tensile strength, bending strength modulus increase, but...
Abstract C 20 H 16 CuN 10 O 2 , tetragonal, I 4 1 / a (no. 88), = 8.8634(6) Å, c 27.731(4) V 2178.5(4) Å 3 Z 4, R gt ( F ) 0.0541, wR ref 0.1521, T 296 K.
Abstract A new dinuclear Cu(II) complex, [Cu 2 L(N 3 ) ](ClO 4 1 . 5 (OH) 4.5 · 2H O 0.5C H OH (1), of a bis‐macrocyclic ligand, 2,6‐bis(l,4,7,10‐tetraazacyclododecan‐10‐ylmethyl)‐methoxybenzene (L), has been synthesized, characterized and structurally determined by X‐ray diffraction analysis. Complex crystallizes in orthorhombic crystal system, Pca2(l) space group with = 1.5371(3), b 1.6641(3), c 3.0950(6) nm, V 7.917(3) nm , F w 904.62, Z =8, D 1.529 g/cm final R 0.0568, wR 0.1406 for...
Abstract C 28 H 22 N 2 O 4 Zn, tetragonal, P 1 (no. 92), a = 10.986(5) Å, b c 18.187(8) V 2195(2) Å 3 , Z 4, R gt (F) 0.0440, wR ref (F ) 0.0942, T 293 K.
Abstract C 26 H 20 Br 4 N 8 NiO 3 , monoclinic, P 2/ c (no. 13), a = 13.760(4) Å, b 14.079(4) 16.317(5) β 98.604(6)°, V 3125.5(16) Å Z 4, R gt (F) 0.0719, wR ref (F 2 ) 0.1376, T 293 K.