Spin-orbit coupling controlled spin chemistry of Ru(bpy)32+ photooxidation: Detection of strong viscosity dependence of in-cage backward electron transfer rate
Abstract
Materials Literature
文献浏览
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
Comparative Tribology Studies of Hard Ceramic and Composite Metal-DLC Coatings in Sliding Friction Conditions
The design of anti-friction coatings able to perform well in different wear conditions without lubricants requires a combination of adequate hardness and toughness, good adhesion, a low friction coefficient and a low wear rate. Recently introduced metal-diamond-like carbon (DLC) coatings can be a major step towards th…
Hydrogen-bonded liquid crystals from alkoxystilbazoles and 3-cyanophenols: structural control of mesomorphism. Molecular structure of the complex between 4-cyanophenol and 4-octyloxystilbazole
Complexes formed between 4-alkoxystilbazoles and 3-cyanophenol show liquid crystal mesophases. Compared to the mesomorphism of similar complexes formed between stilbazoles and 4-cyanophenol, the mesophases are more stable and are enantiotropic.
An actively cooled 120 kW coaxial winding transformer for fast charging electric vehicles
A 120 kW coaxial winding transformer has been built and tested to verify previous indications that a high power transformer is feasible with the key attributes of this novel design, namely: low leakage inductance, minimal effect of leakage field on core losses, low copper losses, and a convenient "nesting" structure w…
Temperature- and frequency-dependent dielectric studies of p-fluorophenylacetonitrile–methanol mixtures using time-domain reflectometry
Using picosecond time-domain reflectometry, dielectric relaxation studies have been carried out for p-fluorophenylacetonitrile(FPA)–methanol(MeOH) mixtures over the frequency range 10 MHz–10 GHz at various temperatures. The relaxation in these systems can be described by a single relaxation time using the Debye model.…
Encapsulation of Vincristine in Liposomes Reduces its Toxicity and Improves its Anti-Tumor Efficacy
Vincristine is a potent therapeutic agent with activity against a variety of tumor types. It is a cell-cycle specific agent which has exhibited enhanced anti-tumor activity when delivered in liposomal form. Vincristine can be encapsulated into large unilamellar vesicles in response to a transmembrane pH gradient with…
Photosynthesis of CH4 at a TiO2 surface from gaseous H2O and CO2
UV irradiation of the gas/solid interface of microcrystalline TiO2 in the presence of water and carbon dioxide in the gas phase at 343 K leads to photoreduction of carbon dioxide to form carbon monoxide, hydrogen and methane.
The effect of V/sub 2/O/sub 5/ on the sintering of NiCuZn ferrite
Various amounts of vanadium pentoxide (V/sub 2/O/sub 5/) were introduced to the NiCuZn ferrite to reduce the sintering temperature. The V/sup +5/ cations entered the crystal lattice of the ferrite and improved the initial permeability and quality factor, 0.5 mol% of V/sub 2/O/sub 5/ was required to form the liquid pha…
[60]Fullerene and TCNQ donor–acceptor crystals of octakis(dimethylamino) porphyrazine
Reaction of octakis(dimethylamino) porphyrazine 1 with [60]fullerene gives a crystalline 2:1 charge-transfer (CT) complex as a three-dimensional network of chains; in contrast, reaction of 1 with tetracyanoquinodimethane (TCNQ) gives a crystalline 1:1 charge transfer salt as one-dimensional integrated stacks.
Structural Analysis of Orthorhombic Hafnia by Neutron Powder Diffraction
The crystal structure of orthorhombic HfO 2 synthesized at 600°C and 6 GPa was investigated by a time‐of‐flight neutron powder diffraction experiment. Rietveld analysis of these data revealed that the space group of this phase is Pbca. The refined lattice parameters are a 0 = 1.00177, b 0 = 0.52276, and c 0 = 0.50599…
Use of Neural Nets for Determining the Spinnability of Fibres
It is very important for a spinner to be able to predict the degree of spinnability of a given fibre quality. Certain process conditions must be taken into account here. This paper describes how the spinnability or a given fibre quality on a rotor and ring spinning machine can be predicted with a reliability of 95% by…
Bond Strength Trends in Halogenated Methanols: Evidence for Negative Hyperconjugation?
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBond Strength Trends in Halogenated Methanols: Evidence for Negative Hyperconjugation?William F. Schneider, Barbara I. Nance, and Timothy J. WallingtonCite this: J. Am. Chem. Soc. 1995, 117, 1, 478–485Publication Date (Print):January 1, 1995Publication History Published onli…
Molecular symmetry, melting temperatures and melting enthalpies of substituted benzenes and naphthalenes
Thermodynamic parameters of melting for mono- and di-substituted benzenes and naphthalenes have been examined. Correlations with molecular structural parameters are discussed. With very few exceptions, ortho- and meta-disubstituted benzenes melt at lower temperatures than para-isomers, an enthalpic effect related to c…
The enzymatic hydrolysis of a synthetic biomembrane: A new substrate for cholesterol and carboxyl esterases
With the introduction of artificial implant devices, a new host of biomembrane-like structures have been introduced into the bio-media made up of the synthetic matrix, adsorbed proteins and lipids. Lysosomal hydrolases, e.g. cholesterol esterase (CE), are implicated during the tissue response near the tissue-implant i…
Hydrothermal Synthesis of (Ph4P)2[Hg2As4S9] and (Me4N)[HgAs3S6]. Extended Chains and Layers Based on the Condensation of [AsS3]3- Units
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTHydrothermal Synthesis of (Ph4P)2[Hg2As4S9] and (Me4N)[HgAs3S6]. Extended Chains and Layers Based on the Condensation of [AsS3]3- UnitsJun-Hong Chou and Mercouri G. KanatzidisCite this: Chem. Mater. 1995, 7, 1, 5–8Publication Date (Print):January 1, 1995Publication History P…
Preisach model study of the connection between magnetic and microstructural properties of soft magnetic materials
The application of Preisach modelling to the study of the microstructure-hysteresis interplay in soft magnetic materials is reviewed. It is shown that mean-field effects are mainly due to the change of the total domain wall surface energy along the hysteresis loop. The reconstruction of the Preisach distribution from…
The Evolutionary Process during Pyrolytic Transformation of Poly(N‐methylsilazane) from a Preceramic Polymer into an Amorphous Silicon Nitride/Carbon Composite
The pyrolytic evolution of poly(N‐methylsilazane), –[H 2 SiN‐Me] x –, from preceramic polymer to ceramic product is followed by heating samples of the partially cross‐linked polymer, in 200°C increments, from ambient temperature to 1400°C. The intermediate products are characterized by chemical analysis, diffuse refle…
Synthesis of some 2,4- and 2,5-disubstituted thiophene systems and the effect of the pattern of substitution on the refractive indices, optical anisotropies, polarisabilities and order parameters in comparison with those of the parent biphenyl and dithienyl systems
The refractive indices, optical anisotropies, polarisabilities and order parameters of a number of phenylthiophenes and the parent dithienyl and biphenyl compounds with butylsulfanyl and cyano substituents have been measured. The presence of a thiophene ring leads to: (i) increased values of n∥ and n⊥ with the latter…
Relationship between Particle Size of Barium Glass Filler and Water Sorption of Light-cured Composite Resin
The reaction of barium glass filler with water was determined by investigation of the effects of the particle size of barium glass filler on the water sorption rate and the mechanical properties of composite resin. Barium glass and quartz were milled to obtain powders with different average particle sizes. These powde…
The crystal structures of [NMe4]2[(PhPO3){MoO(O2)2}2-{MoO(O2)2(H2O)}] and [NBun 4]2[W4O6(O2)6(OH2)(H2O)2] and their use as catalytic oxidants
The new trinuclear heteropolyperoxo complexes [NMe4]2[(RPO3){MO(O2)2}2{MO(O2)2(H2O)}](R = Ph, M = Mo 1 or W 2) have been isolated and the crystal structure of the molybdenum complex is reported. A series of analogous molybdenum complexes (R = Me, Et, Bun or But; M = Mo) have also been synthesised and characterised. Th…