47 Result(s)
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Article
A study on the kinetics of thermal decomposition of CaCO3
By means of TG, the thermal decomposition of the powdered CaCO3 was tested with its various dispersities, range of size, and the different content of CO2 in flowing nitrogen. Formulae for calculating the rate and...
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Article
Purity evaluation and influence of carbon nanotube on carbon nanotube/graphite thermal stability
High resolution thermogravimetry has been used to evaluate the carbonaceous content in a commercial sample of single-walled carbon nanotube (SWNT). The content of SWNTs in the sample was found to be at least 7...
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Article
In vivo biological behavior of 99mTc(CO)3 labeled fullerol
The mass production and extensive applications of nanomaterials may have potential negative effects on health of human beings. Research on the in vivo behavior of fullerene, the most representative nanomateria...
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Article
3D Binary copper(I) 3,5-dibutyl-1,2,4-triazolate: Synthesis, Structure and Topology
Binary copper(I) 3,5-dibutyl triazolate has been prepared from 3,5-dibutyl triazole and Cu(NO3)2 under hydrothermal condition. This complex crystallizes in tetragonal I41/a with a = b = 17.622(3) Å, c = 15.842(3)...
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Article
2D d10 Metal Assembly Frameworks: Construction of Metal–organic Architecture with Metal Thiocyanate and Dipyridyl Spacer
A new coordination polymer based on Group IB metal thiocyanates, [Ag 2 I (NCS)2(dpds)2]n (1) (dpds = 2,2′-dipyridyldisulfide), has been synthesized by th...
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Article
A DSC study of paeonol-encapsulated liposomes, comparison the effect of cholesterol and stigmasterol on the thermotropic phase behavior of liposomes
Thermotropic phase behaviors of paeonol-encapsulated liposomes containing stigmasterol or cholesterol have been investigated by differential scanning calorimetry. We compared the thermotropic phase behavior of...
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Article
Thermal, phase transition, and thermal kinetics studies of carbamazepine
The thermal, phase transition of carbamazepine dihydrate and the solid-state transformation of carbamazepine from form III to form I were performed by Differential scanning calorimetry (DSC), Thermo gravimetry...
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Article
Thermodynamic analysis of lipoic acid crystallized with additives
Differential scanning calorimetry (DSC) was used as a screening technique to study the interaction between lipoic acid and amino acids. The samples containing lipoic acid and amino acids were prepared by two d...
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Article
Adsorption kinetic, isotherm and thermodynamic studies of Sr2+ onto hexagonal tungsten oxide
Hexagonal tungsten oxide (hex-WO3) with exchangeable sodium and ammonium cations located in hexagonal channel was synthesized by a facile hydrothermal treatment of sodium tungstate dihydrate in concentrated HCl s...
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Article
Dispersive liquid-liquid microextraction for simultaneous determination of six parabens in aqueous cosmetics
A simple and rapid sample preparation method of dispersive liquid-liquid microextraction(DLLME) was applied in the simultaneous determination of six parabens in the aqueous cosmetics. The analysis was performe...
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Article
An eco-friendly Co(OAc)2-catalyzed aerobic oxidation of 4-benzylphenols into 4-hydroxybenzophenones
An undecorated Co(OAc)2-catalyzed aerobic oxidation system has been reported that enables direct transformation of 4-benzylphenols into the corresponding 4-hydroxybenzophenones. The procedure is especially suitab...
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Article
A ligand-free, powerful, and practical method for methoxylation of unactivated aryl bromides by use of the CuCl/HCOOMe/MeONa/MeOH system
A ligand-free, powerful, and practical method for mono and polymethoxylation of unactivated aryl bromides has been developed; CuCl was used as catalyst, HCOOMe as cocatalyst, and methanolic MeONa as both nucle...
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Article
Synthesis, Crystal Structures and their Utilities in Tishchenko Reaction of N,O-Bidentate Aluminum Compounds
Deprotonolysis of the N,O-bidentate pyridyl functionalized alkoxy ligands, 1,1-dimethyl-2-(pyridin-2-yl)ethanol (L 1 H), 1-phenyl-2-(pyridin-2-yl)ethanol...
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Article
A practical ligand-free copper(I) bromide-catalyzed fluoroalkoxylation of unactivated aryl bromides
An efficient ligand-free fluoroalkoxylation of unactivated aryl bromides has been developed, with special attention focused on practicability of the reaction. Without precious metal and organic ligand, the rea...
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Article
Stability and dehydration kinetics of the monohydrate racemic tartaric acid
Racemic tartaric acid (race-TA) exists in the solid state as a monohydrate and an anhydrous. There is a large difference in their bioavailability and product performance. In this paper, the stability of monohy...
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Article
Metal-Cation-Directed Assembly of Two M–I (M = Cu, Ag) Clusters: Structures, Thermal Behaviors, Theoretical Studies, and Luminescence Properties
Two new M–I (M = Cu, Ag) clusters, {[Ce(DMF)8][Cu8I11]·C2H5OH} n (1) (DMF = dimethylfomamide) and {[Co(DMF)6]4[Ag7I11]2} (2), were synthesized with the direction of solvent-asso...
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Article
Two Ag(I)–Ni(II) Heterobimetallic Coordination Polymers Based on Metalloligand and Bridging Ligands: Syntheses, Structures and Luminescence Properties
Two new one-dimensional heterobimetallic coordination polymers, {[Ni(2-pytpy)2][Ag2(SCN)4]}n (2-pytpy = 4′-(4-pyridyl)-2,2′:6′,2′′-terpyridine) and {[Ni(2-pytpy)2][Ag2(N(CN)2)3(NO3)DMSO]}n (DMSO = dimethyl sulfox...
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Article
Metalloligand-induced Synthesis of Two Cu(I)–M (M=Ni, Co) Heterobimetallic Coordination Polymers: Structures, Thermal and Luminescence Properties
Two interesting heterobimetallic coordination polymers (CPs), {[Ni(4-pytpy)2]2[Cu4(N(CN)2)7](NO3)(DMF)(DMSO)(H2O)4}n (1) and {[Co(4-pytpy)(N(CN)2)]2[Cu2(N(CN)2)4]}n (2), have been synthesized based on different m...
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Article
Ligand-Assisted Conformation of Three Interesting Ni–M (M = Ag, Cu) Heterobimetallic Coordination Polymers: Syntheses, Structures, Thermal and Luminescence Properties
Three new heterobimetallic coordination polymers (CPs), {[Ni(4-pytpy)2][Ag(CH3CN)(NO3)](NO3)2(H2O)2}n 1 (4-pytpy = 4′-(4-pyridyl)- 2,2′:6′,2′′-terpyridine), {[Ni(4-pytpy)2][Ag2(4,4′-bipy)...
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Article
Coordination investigation of rhenium with MAG3 using LC-MS and UV spectrometer and the simple radiolabelling process
Due to the low concentration of 188Re-radiopharmaceuticals, identity confirmation of the complex is generally performed only indirectly by assessment of their retention time on HPLC. Herein, LC-MS and UV spectrom...
