Dieter Wöhrle、B. W. Schulte1988-06-01Die Makromolekulare Chemie
Abstract Alkylenedioxy bridged polymeric phthalocyanines 3a – d were synthesized by the reaction of the tetracarbonitriles 2a–d with copper(II) chloride or copper in bulk. As compared with other tetracarbonitriles the reactions applying 2a – d, which contain a flexible alkylene chain, run at relatively low reaction te…
Porphyrin and Phthalocyanine ChemistryMetal-Catalyzed Oxygenation MechanismsOxidative Organic Chemistry Reactions
Daniel L. Reger、Jeffrey A. Lindeman、Lukasz Lebioda1988-06-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis, x-ray crystal structure, and multinuclear NMR study of the dynamic behavior of tris[dihydrobis(1-pyrazolyl)borato]yttrium(III); a molecule with three three-center, two-electron bondsDaniel L. Reger, Jeffrey A. Lindeman, and Lukasz LebiodaCite this: Inorg. Chem. 19…
Metal complexes synthesis and propertiesMagnetism in coordination complexesLanthanide and Transition Metal Complexes
YuCheng Chen、Isao Ishibashi、James T. Jenkins1988-06-01Géotechnique
A torsional simple shear-resonant column device was used to perform experiments on hollow cylindrical samples consisting of glass spheres with two different diameters. The purpose of the investigat...
Textile materials and evaluationsStructural Analysis and OptimizationStructural Analysis of Composite Materials
Andréa Caneschi、Dante Gatteschi、J Laugier 等 6 位作者1988-06-01Inorganic Chemistry
Two new bis adducts were obtained by reaction of manganese hexafluoroacetylacetonate, Mn(hfac),, with the nitronyl nitroxide ligands 2,4,4,5,5-pentamethyl-4,5-dihydr1oH-- imidazolyl- 1-oxy 3-oxide, NITMe, and 2-phenyl-4,4,5,5-tetramethyl-4,5-dihydro- 1H-imidazolyl-1-oxy 3-oxide, NITPh. The X-ray crystal structure show…
Metal complexes synthesis and propertiesMagnetism in coordination complexesElectron Spin Resonance Studies
Bruce J. Ackerson、Jos van der Werff、C. G. de Kruif1988-06-01Physical Review A
Small-scattering-wave-vector structure-factor measurements have been made for model hard-sphere suspensions undergoing a steady linear shear flow. The samples are comprised of sterically stabilized silica particles in cyclohexane and have been well characterized previously by rheological, light scattering, and neutron…
Material Dynamics and PropertiesGranular flow and fluidized bedsGeological formations and processes
Antoni Planes、J.L. Macqueron、Jordi Ortı́n1988-06-01Philosophical Magazine Letters
The thermoelastic martensitic transformation in shape-memory alloys is studied thermodynamically. Calorimetric experiments on the Cu─Zn─A1 alloy system reveal that the transformation takes place with a practically negligible entropy production. The usual hysteretic subloop behaviour during partial cycling is obtained…
Shape Memory Alloy TransformationsPiezoelectric Actuators and ControlThermoelastic and Magnetoelastic Phenomena
Fred F. Lange、Takashi Yamaguchi、B. I. Davis 等 4 位作者1988-06-01Journal of the American Ceramic Society
The sinterability of Al 2 O 3 /ZrO 2 composite powder compacts containing 2 and 10 vol% ZrO 2 was compared to the sinterability of their single‐phase constituents through constant‐heating‐rate experiments. The ZrO 2 inclusion phase delayed the initiation of bulk shrinkage and the temperature of maximum strain rate by…
Advanced ceramic materials synthesisAdvanced materials and compositesPowder Metallurgy Techniques and Materials
Jean‐Jacques Jutier、Even Lemieux、Robert E. Prud’homme1988-06-01Journal of Polymer Science Part B Polymer Physics
Abstract The miscibility of polyester/nitrocellulose blends was investigated by differential scanning calorimetry and Fourier‐transform infrared (FTIR) spectroscopy. Two nitrocelluloses (NC) derived from wood and having different nitrogen contents (12.62 and 13.42%) were used. On the basis of the glass transition temp…
Polymer crystallization and propertiesAdvanced Cellulose Research Studiesbiodegradable polymer synthesis and properties
R. S. Venkatachalam、F. J. Boerio、P. G. Roth1988-06-01Journal of Raman Spectroscopy
Abstract Surface‐enhanced Raman scattering (SERS) from p ‐aminobenzoic acid (PABA) adsorbed on silver island films was investigated. PABA reacted very quickly to form p , p′ ‐azodibenzoate when exposed to atmospheric moisture and laser light. This was evidenced by the appearance of a strong band near 1460 cm −1 and a…
Gold and Silver Nanoparticles Synthesis and ApplicationsQuantum Dots Synthesis And PropertiesMercury impact and mitigation studies
Richard R. Schrock、M. Wesolek、Alan Liu 等 5 位作者1988-06-01Inorganic Chemistry
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTThiolato dinitrogen (or hydrazido(4-)) complexes, [Ta(SAr)3(THF)]2(.mu.-N2) (Ar = 2,6-C6H3-iso-Pr2, 2,4,6-C6H2-iso-Pr3), and phenoxide analogs. A structural comparison of [Ta(S-2,6-C6H3-iso-Pr2)3(THF)]2(.mu.-N2), and [Ta(O-2,6-C6H3-iso-Pr2)3(THF)]2(.mu.-N2)R. R. Schrock, M.…
Organometallic Complex Synthesis and CatalysisMagnetism in coordination complexesLanthanide and Transition Metal Complexes
D. E. Amory、M. Genet、Paul G. Rouxhet1988-06-01Surface and Interface Analysis
Abstract Yeast cells, Saccharomyces cerevisiae and carlsbergensis , have been analysed by XPS. A preparation and analysis procedure was developed in order to minimize contamination and re‐arrangements of the cell surface. The use of an external standard of silica permitted the absolute surface concentrations to be est…
Analytical chemistry methods developmentPolymer Surface Interaction StudiesDiatoms and Algae Research
Sushil K. Misra、Czesław Rudowicz1988-06-01physica status solidi (b)
Abstract Room‐temperature X‐band EPR data for Gd 3+ ‐doped isostructural rare‐earth trichloride hexahydrates are analyzed using a rigorous least‐squares‐fitting procedure. Discussion of the three forms of spin Hamiltonian corresponding to the orientations of the two‐fold monoclinic symmetry axis C 2 parallel to the ma…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesSolid-state spectroscopy and crystallography
Rolf Gleiter、Michael Kärcher1988-06-01Angewandte Chemie International Edition in English
How bridging can markedly change the reactivity of a compound is demonstrated by the tricyclo[4.2.0.02.5]octadiene derivative 1. Its thermal and photochemical behavior is completely different from that of the parent compound. Upon warming, 1 undergoes a degenerate Cope rearrangement and, upon irradiation, the fourfold…
Porphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer StudiesMolecular spectroscopy and chirality
Hiroki Takahashi、K. Fujimoto、Masaichi Nagayama1988-06-01Journal of The Electrochemical Society
The composition of anodic oxide films anodically formed on aluminum in phosphate solutions with different p H's was examined by chemical sectioning in a sulfuric acid solution combined with impedance measurements, solution analysis, and electron microscopy. The oxide films were found to consist of two layers: an outer…
Concrete Corrosion and DurabilityAnodic Oxide Films and NanostructuresSmart Materials for Construction
H. A. Al‐Salah、Hong Xiao、John A. McLean 等 4 位作者1988-06-01Journal of Polymer Science Part A Polymer Chemistry
Abstract Polyurethane (PU) cationomers have been synthesized by quaternizing tertiary amine‐containing linear polyurethanes using different quaternizers containing acid groups. The effect of chemical structure of PU cationomers on the physical properties was studied. The mechanical properties of PU cationomers were im…
Polymer Nanocomposites and PropertiesPolymer composites and self-healingLignin and Wood Chemistry
Hans J. Heilmann、Hans J. Mägert、Hans Günter Gassen1988-06-01European Journal of Biochemistry
A gene encoding glucose dehydrogenase of Bacillus megaterium M1286 was isolated from a lambda-EMBL3 phage library. It is transcribed and translated in cells of the heterologous organism Escherichia coli by own control regions. The gene is located on a 1126-bp HindIII fragment. Its nucleotide sequence contains 220 bp i…
Bacterial Genetics and BiotechnologyRNA and protein synthesis mechanismsEnzyme Structure and Function
Benjamin Podányi、R. Stephen Reid1988-06-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNMR study of the conformations of free and lanthanide-complexed glutathione in aqueous solutionBenjamin. Podanyi and R. Stephen. ReidCite this: J. Am. Chem. Soc. 1988, 110, 12, 3805–3810Publication Date (Print):June 1, 1988Publication History Published online1 May 2002Publis…
Lanthanide and Transition Metal ComplexesSulfur Compounds in BiologyElectron Spin Resonance Studies
Laarni Laguren‐Davidson、Chiem Van Pham、H. Zimmer 等 5 位作者1988-06-01Journal of The Electrochemical Society
This investigation is concerned with the effect of thiophene monomer structures on the electrochemical behavior and physical characteristics of electropolymerized poly(thiophenes) and various poly(3‐methylthiophenes). These variations in polymer structure were achieved by employing thiophene and 3‐methylthiophene olig…
Organic Electronics and PhotovoltaicsConducting polymers and applicationsElectrochemical Analysis and Applications
Xuehai Zhang、Qingshan Zhou、William P. Weber 等 6 位作者1988-06-01Macromolecules
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTAnionic ring-opening polymerization of sila- and germacyclopent-3-enesXuehai Zhang, Qingshan Zhou, William P. Weber, Raymond F. Horvath, T. H. Chan, and Georges ManuelCite this: Macromolecules 1988, 21, 6, 1563–1566Publication Date (Print):June 1, 1988Publication History Pub…
Organometallic Complex Synthesis and Catalysisbiodegradable polymer synthesis and propertiesSynthesis and characterization of novel inorganic/organometallic compounds
Ioannis Constantinidis、James D. Satterlee1988-06-01Journal of the American Chemical Society
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTUV-visible and carbon NMR studies of chloroquine binding to urohemin I chloride and uroporphyrin I in aqueous solutionsI. Constantinidis and James D. SatterleeCite this: J. Am. Chem. Soc. 1988, 110, 13, 4391–4395Publication Date (Print):June 1, 1988Publication History Publis…
Porphyrin and Phthalocyanine ChemistryRetinoids in leukemia and cellular processesMolecular spectroscopy and chirality