Materials Literature
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Glucose is released from the diboronic acid ‘clef’3 when a metal ‘sandwich’ is formed by two 15-crown-5 rings; the binding events are sensitively monitored by changes in the fluorescence intensity.
Several homologues of two structurally different types of mesogenic difluoroterphenyls have been prepared. One set of compounds contains two inner-core fluoro-substituents and the other set possesses both an inner-core and an outer-core fluoro-substituent. The use of various types of palladium-catalysed cross-coupling…
Arg-Gly-Asp peptides (RGD) were synthesized and chemically coupled to the bulk of N-(2-hydroxypropyl) methacrylamide-based polymer hydrogels. Fourier Transform Infrared Spectroscopy (FTIR) and amino acid analysis confirmed the peptide coupling to the polymer. Activated and control (unmodified) polymer matrices were st…
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTStructural and Spectroscopic Properties of Antiferromagnetically Coupled FeIIIMnII and FeIIMnII ComplexesTheodore R. Holman, Zhigang Wang, Michael P. Hendrich, and Lawrence QueCite this: Inorg. Chem. 1995, 34, 1, 134–139Publication Date (Print):January 1, 1995Publication His…
Arylalkanes are oxidized by dithiocyanato- and dibromo-[4,4′-di(tert-butyl)-2,2′-bipyridyl]molybdenum(VI) dioxo complexes either thermally or under UV irradiation.
Small-angle X-ray scattering (SAXS) together with nitrogen adsorption, have been employed to analyse the pore-structure evolution behaviour, on the nanometre scale, by varying solvent-exchange treatment for silica gels having bicontinuous interconnected macropores. For the gels prepared in the system containing poly(a…
Ab initio quantum chemical calculations on short-chain model compounds have been used to study the conformation, valence electron density, and chain flexibility of halogen-substituted poly-(thionylphosphazenes) (PTPs) [(NSOX)(NPCl&], (X = F or Cl), which are representatives of a new class of inorganic sulfur(vI)-n…
Approximate density functional theory calculations have been used to investigate the trans influence in five- and six-co-ordinate transition-metal nitride complexes. The geometries of [OsNX4]–(X = Cl, Me or SMe) and [OsNCl5]2– were optimized in the C4v point group. The agreement between calculated and experimental geo…
Nickel(II) ions template the formation of the first macrocycle to incorporate both phenol and thiophenol head units; the structure of [Ni2L(MeCN)2][ClO4]21, with adjacent square-planar and octahedral nickel(II) ions, is described.
Journal Article SYMMETRIC GROUP BLOCKS OF DEFECT TWO Get access JOANNA SCOPES JOANNA SCOPES 117 Limes Road Hardwick Cambridge CB37XU Search for other works by this author on: Oxford Academic Google Scholar The Quarterly Journal of Mathematics, Volume 46, Issue 2, June 1995, Pages 201–234, https://doi.org/10.1093/qmath…
29 Si NMR experiments on C-S-H formed during the two kinetic steps of C 3 S hydration reveal the presence of Q 1 and Q 2 signals. For a very low percentage of the reaction, a Q 0 signal is also observed. However, this signal is not believed to be induced by C-S-H and has been attributed to C 3 S,h (C 3 S superficially…
Sintering behavior of SiC with oxide additives is controlled by SiO2 content and particle size of starting powders at temperatures below 1900°C and chemical reactions, which evolve gaseous products (possibly SiO, Al2O, CO), between SiC, free carbon, SiO2 on SiC and oxide additives at temperatures above 1900°C.The high…
The binary system PbO–BiVO4 exhibits two new phases, Pb4BiVO8 and Pb2BiVO6. They both melt congruently at 780 °C. They have been identified by single-crystal and powder X-ray diffraction. Pb4BiVO8 crystallizes with a triclinic cell, a= 6.221(2)Å, b= 7.603(5)Å, c= 10.457(4)Å, α= 100.40(3)°, β= 102.18(2)°, γ= 90.03(3)°…
A critical but non exhaustive review of the aqueous corrosion fatigue mechanisms is proposed with a particular emphasis on the corrosion-deformation interactions, The limits of the classical approaches of corrosion fatigue crack initiation and propagation predictions from the electrochemical point of view are pointed…
Novel steroidal glycosides 2-4, 6-11, 13-19 and 20 were isolated from the roots of Cynanchum caudatum M. (Asclepiadaceae). The structures of these steroidal glycosides were determined on the basis of spectral and chemical evidence. All of these glycosides contain 2, 6-dideoxyhexopyranoses as component sugars, and thei…
The phase resolved partial discharge detection technique (or 'PD pattern recording technique') is applicable to field measurements, particularly if combined with disturbance rejection techniques and non-conventional pick-up circuits. Electromagnetic disturbances can be eliminated by filtering in the time dom…
A wide range of conjugated organic compounds undergo anodic electropolymerisation to produce polymers of high conductivity. However, electrooxidation does not always result in the formation of electroactive materials, since some reactions produce insulating films or soluble oligomers. Density functional theory (DFT) h…
The new segmental ligand L2, which possesses a terminal N,N′-diethylcarboxamido group, reacts with EuIII and ZnII to give the highly stable and strongly luminescent self-assembled helical heterodinuclear d–f complex [EuZn(L2)3]5+.
Collagen-based materials can be designed for use as scaffolds for connective tissue reconstruction. The goal of the present study was to evaluate the behavior of collagen materials as well as cell and tissue reactions after the conjugation of activated polyethylene glycols (PEGs) with collagen. It is known that protei…
Plasma polymerization of ethylene and ammonia gas mixtures is used to obtain uniform polymer coatings on the surface of AS4 graphite fibers. The polymer deposition rates were determined for processing parameters such as composition of the monomer mix, monomer flow rate, chamber pressure, and power input of the radio f…