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Preparation and Crystal Structures of Binuclear Copper(II) Complexes of N,N′,N″,N'″-Tetrakis(2-aminoethyl)1,4,8,11-tetraazacyclotetradecane Containing Azide, Cyanate, or Thiocyanate Ion

Masahiro Mikuriya、Sigeo Kida、Ichiro Murase1987-04-01Bulletin of the Chemical Society of Japan

Abstract Three binuclear copper(II) complexes of N,N′,N″,N'″-tetrakis(2-aminoethyl)-1,4,8,11-tetraazacyclotetradecane (taec), [Cu2(taec)N3](ClO4)3 (1), [Cu2(taec)(NCO)](ClO4)3 (2), and [Cu2(taec)(NCS)2](ClO4)2·H2O (3), were prepared and characterized. The crystal structures of these complexes were determined by single…

Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes

Formation of manganese(IV)-oxo-porphyrin derivatives by decomposition of peroxycarbonate complexes

M. Schappacher、R. Weiss1987-04-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTFormation of manganese(IV)-oxo-porphyrin derivatives by decomposition of peroxycarbonate complexesM. Schappacher and R. WeissCite this: Inorg. Chem. 1987, 26, 8, 1189–1190Publication Date (Print):April 1, 1987Publication History Published online1 May 2002Published inissue 1…

Electrochemical sensors and biosensorsPorphyrin and Phthalocyanine ChemistryPhotodynamic Therapy Research Studies

Preparation and properties of surface-conductive polyimide films via in situ codeposition of metal salts

Jean Rancourt、Larry T. Taylor1987-04-01Macromolecules

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPreparation and properties of surface-conductive polyimide films via in situ codeposition of metal saltsJ. D. Rancourt and L. T. TaylorCite this: Macromolecules 1987, 20, 4, 790–795Publication Date (Print):April 1, 1987Publication History Published online1 May 2002Published…

Conducting polymers and applicationsMolecular Junctions and NanostructuresSynthesis and properties of polymers

ELECTRONIC STATES OF QUASIPERIODIC SYSTEMS: FIBONACCI AND PENROSE LATTICES

Mahito Kohmoto1987-04-01International Journal of Modern Physics B

Since the experiment of Shechtman et al. which suggests the crystal with the pentagonal symmetry (quasicrystal), there has been a lot of interest in the quasiperiodic systems. These can be regarded as being intermediate between ordered and disordered systems, and novel physical properties are expected. In fact, the qu…

Quasicrystal Structures and PropertiesAdvanced Mathematical Theories and Applications

Photocatalytic oxidation of hydrocarbons by (5,10,15,20-tetraphenylporphyrinato)manganese(II) perchlorate and periodate

Kenneth S. Suslick、Francis V. Acholla、Bruce R. Cook1987-04-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhotocatalytic oxidation of hydrocarbons by (5,10,15,20-tetraphenylporphyrinato)manganese(II) perchlorate and periodateKenneth S. Suslick, Francis V. Acholla, and Bruce R. CookCite this: J. Am. Chem. Soc. 1987, 109, 9, 2818–2819Publication Date (Print):April 1, 1987Publicati…

Porphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer StudiesMetal-Catalyzed Oxygenation Mechanisms

Spectroscopic study of poly(ethylene terephthalate)/poly(amide‐6,6) blends

Lilianna Z. Pillon、L. A. Utracki、D. W. Pillon1987-04-01Polymer Engineering and Science

Abstract Fourier transform infrared (FT‐IR) studies of poly(ethylene terephthalate) (PET)/poly/(amide‐6,6) (PA) blends are presented. The blends were prepared in the molten state and in solution with trifluoroacetic acid (TFA) as the solvent. The PET/PA blend is a complex system containing, two crystallizable polymers…

Polymer crystallization and propertiesbiodegradable polymer synthesis and propertiesPolymer Foaming and Composites

Surface Crystallography: An Introduction to Low Energy Electron Diffraction

L.J. Clarke、Paul Marcus1987-04-01Physics Today

Low Energy Electron Diffraction (LEED) is one of the most commonly used techniques for crystal surface characterization at the atomic level, but is frequently only used as a monitor of surface order. The full potential of LEED as a tool for surface crystallography is not often exploited, primarily because the method h…

Electron and X-Ray Spectroscopy Techniques

Method for measuring complex permeability at radio frequencies

Ron Goldfarb、H. E. Bussey1987-04-01Review of Scientific Instruments

An established method for measuring complex rf magnetic permeability is based on the change in inductance and resistance of a coaxial transmission line upon insertion of a sample toroid. It is not necessary to wind coils on the toroid or correct for geometric demagnetization factors. The use of modern commercial imped…

Magnetic Properties and Synthesis of FerritesMagnetic Properties and ApplicationsMagnetic Field Sensors Techniques

Sedimentation equilibrium in macromolecular solutions of arbitrary concentration. I. Self‐associating proteins

Ronald C. Chatelier、Allen P. Minton1987-04-01Biopolymers

Abstract Relations describing sedimentation equilibrium in solutions of self‐associating macromolecules at arbitrary concentration are presented. These relations are obtained by using scaled‐particle theory to calculate the thermodynamic activity of each species present at a given radial distance. The results are expe…

Phase Equilibria and ThermodynamicsMaterial Dynamics and PropertiesThermodynamic properties of mixtures

Azoalkanes as electron donors in charge-transfer complexes. Molecular structures with sacrificial (.pi.*,.sigma.*) and increvalent (v) electron acceptors

Silas C. Blackstock、Jay K. Kochi1987-04-01Journal of the American Chemical Society

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAzoalkanes as electron donors in charge-transfer complexes. Molecular structures with sacrificial (.pi.*,.sigma.*) and increvalent (v) electron acceptorsS. C. Blackstock and J. K. KochiCite this: J. Am. Chem. Soc. 1987, 109, 8, 2484–2496Publication Date (Print):April 1, 1987…

Magnetism in coordination complexesPhotochemistry and Electron Transfer StudiesOrganic and Molecular Conductors Research

Corrosion of N80-Type Steel by CO2/Water Mixtures

Raymond Jasinski1987-04-01CORROSION

The initial high corrosion rates of low-alloy carbon steel in CO2/brine mixtures are mitigated by the subsequent generation of loosely adherent iron carbide surface films, iron carbonate surface films, and, in the case of unbuffered waters, by a significant increase in pH caused by the loss of acid to the corrosion pr…

Corrosion Behavior and InhibitionHydrogen embrittlement and corrosion behaviors in metalsMaterial Properties and Failure Mechanisms

Effects of Antimony Oxide on the Characteristics of ZnO Varistors

Taketoshi Takemura、Masahiro Kobayashi、Yoshio Takada 等 4 位作者1987-04-01Journal of the American Ceramic Society

The breakdown voltage, the upturn voltage, and the nonlinearity of the ZnO varistors are significantly influenced by the Sb 2 O 3 and SiO 2 contents, as well as by the β→γ transition of the Bi 2 O 3 phase. The lattice parameter of spinel is influenced by the coexisting Bi 2 O 3 phase. Antimony oxide disperses into the…

ZnO doping and propertiesMagnetic Properties and Synthesis of FerritesMagneto-Optical Properties and Applications

The theory of the excitation of atomic inner-shells in crystals by fast electrons

D. K. Saldin、Peter Rez1987-04-01Philosophical Magazine B

We review the theory of the excitation of electrons from atomic inner shells in crystals as relevant to microanalysis in the transmission electron microscope and suggest several improvements and generalizations. The orthodox theory, originating with Kainuma, represents the fast electrons as Bloch waves and the core an…

Advanced Electron Microscopy Techniques and ApplicationsX-ray Spectroscopy and Fluorescence AnalysisElectron and X-Ray Spectroscopy Techniques

Viscosity Measurement in Ferroelectric Liquid Crystals Using a Polarization Switching Current

Satoshi Kimura、Shin‐Ichi Nishiyama、Yukio Ouchi 等 5 位作者1987-04-01Japanese Journal of Applied Physics

A new method to evaluate rotational viscosity η in ferroelectric liquid crystals is proposed. This method is based on the measurement of a polarization switching current upon field reversal. It is shown that a full width at half-maximum of the current peak t w is equal to 1.76η/ P s E , while the area gives twice the…

Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesOptical Polarization and Ellipsometry

Models for met-hemocyanin derivatives: structural and spectroscopic comparisons of analogous phenolate and X (X = OH-, OMe-, N3-, Cl-, OAc-, OBz-) doubly bridged dinuclear copper(II) complexes

Kenneth D. Karlin、Amjad Farooq、Jon C. Hayes 等 7 位作者1987-04-01Inorganic Chemistry

ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTModels for met-hemocyanin derivatives: structural and spectroscopic comparisons of analogous phenolate and X (X = OH-, OMe-, N3-, Cl-, OAc-, OBz-) doubly bridged dinuclear copper(II) complexesKenneth D. Karlin, Amjad Farooq, Jon C. Hayes, Brett I. Cohen, Theresa M. Rowe, Ekk…

Porphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation MechanismsFree Radicals and Antioxidants

Tribological Advantages of White Layers Produced by Machining

Brian Griffiths、D. C. Furze1987-04-01Journal of Tribology

Research Papers Tribological Advantages of White Layers Produced by Machining B. J. Griffiths, B. J. Griffiths Brunel University, Uxbridge, Middlesex, United Kingdom Search for other works by this author on: This Site PubMed Google Scholar D. C. Furze D. C. Furze Brunel University, Uxbridge, Middlesex, United Kingdom…

Advanced Surface Polishing TechniquesAdvanced Machining and Optimization TechniquesMetal Alloys Wear and Properties

Structure determination by use of pattern decomposition and the Rietveld method on synchrotron X-ray and neutron powder data; the structures of Al2Y4O9and T2O4

M. S. Lehmann、A. Nørlund Christensen、Helmer Fjellvåg 等 5 位作者1987-04-01Journal of Applied Crystallography

High-resolution synchrotron powder X-ray data have been used to solve the structures of I2O4 and Al2Y4O9 by profile decomposition into individual structure amplitudes, followed by application of standard Patterson and direct methods. The data were obtained from a series of spectra recorded with a small linear position…

Crystallography and molecular interactionsThermal and Kinetic AnalysisX-ray Diffraction in Crystallography

Reactions on colloidal semiconductor particles

A. Henglein、A. Fojtík、Horst Welter1987-04-01Berichte der Bunsengesellschaft für physikalische Chemie

Abstract Inorganic colloids such as cadmium sulfide are often used as sensitizers and catalysts for photochemical reactions. In these reactions, which are described in terms of the concepts developed in electrode kinetics, electrons are transferred between the particles and molecules in the solution. Extremely small p…

Quantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsElectrochemical Analysis and Applications

Crack Deflection as a Toughening Mechanism in SiC‐Whisker‐Reinforced MoSi 2

David H. Carter、G.F. Hurley1987-04-01Journal of the American Ceramic Society

Crack propagation in SiC‐whisker‐reinforced MoSi 2 was studied. In particular, the deflection angles of the cracks were examined to determine the degree to which they are affected by the whisker reinforcement. The composite studied was hot‐pressed MoSi 2 with 20 vol% vapor‐liquid‐solid β‐SiC whiskers. A substantial di…

Advanced ceramic materials synthesisAluminum Alloys Composites PropertiesIntermetallics and Advanced Alloy Properties

Biomaterial surfaces

Buddy D. Ratner、Anne B. Johnston、Thomas J. Lenk1987-04-01Journal of Biomedical Materials Research

The nature of a biomaterial surface governs the processes involved in biological response. Surface properties such as surface chemistry, surface energy, and morphology may be measured in order to understand the surface region of a biomaterial. In this article, we describe the surface characteristics of a few common bi…

Surface Modification and SuperhydrophobicityPolymer Surface Interaction StudiesAdhesion, Friction, and Surface Interactions