Five Color Electrochromicity Using Prussian Blue and Nafion/Methyl Viologen Layered Films
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Synthesis and characterization of octaacetonitriledimolybdenum(II) tetrafluoroborate
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSynthesis and characterization of octaacetonitriledimolybdenum(II) tetrafluoroborateF. Albert Cotton and Kenneth J. WiesingerCite this: Inorg. Chem. 1991, 30, 4, 871–873Publication Date (Print):February 1, 1991Publication History Published online1 May 2002Published inissue 1…
Nonequilibrium molecular dynamics calculation of self-diffusion in a non-Newtonian fluid subject to a Couette strain field
Molecular dynamics simulations have been performed on a simple fluid in the non-Newtonian regime in order to study the nature of diffusion in the presence of shear stress. The nonequilibrium molecular dynamics (NEMD) sllod algorithm is used to generate a homogeneous boundary driven Couette flow. The elements of the te…
Preparation of La 2 Zr 2 O 7 by Sol—Gel Route
The La 2 Zr 2 O 7 phase was prepared from metal acetylacetonates by a sol—gel route without any intermediate phase formation. X‐ray peaks appeared at a temperature as low as 500°C at the positions expected for La 2 Zr 2 O 7 , although they were broad. The crystal structure of La 2 Zr 2 O 7 was found to be of the fluor…
Single-crystal spectroscopic studies of Fe(SR)42- (R = 2-(Ph)C6H4): electronic structure of the ferrous site in rubredoxin
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTSingle-crystal spectroscopic studies of Fe(SR)42- (R = 2-(Ph)C6H4): electronic structure of the ferrous site in rubredoxinMatthew S. Gebhard, Stephen A. Koch, Michelle Millar, Frank J. Devlin, Philip J. Stephens, and Edward I. SolomonCite this: J. Am. Chem. Soc. 1991, 113, 5…
Elucidation of the order of oxidations and identification of an intermediate in the multistep clavaminate synthase reaction
The enzyme clavaminate synthase (CS) catalyzes the formation of the first bicyclic intermediate in the biosynthetic pathway to the potent beta-lactamase inhibitor clavulanic acid. Our previous work has led to the proposal that the cyclization/desaturation of the substrate proclavaminate proceeds in two oxidative steps…
Oxidative activation of wood surfaces for glue bonding
This paper reviews and interprets the available literature and practical experience related to the activation of wood surfaces by oxidative pretreatment to improve adhesive bonding. Prior experiments on paper and wood surfaces are reviewed, along with commercial experience with activation of paper surfaces by corona,…
Decakis(2,6-diethylphenyl)decastanna[5]prismane: characterization and molecular structure
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDecakis(2,6-diethylphenyl)decastanna[5]prismane: characterization and molecular structureLawrence R. Sita and Isamu KinoshitaCite this: J. Am. Chem. Soc. 1991, 113, 5, 1856–1857Publication Date (Print):February 1, 1991Publication History Published online1 May 2002Published i…
Clay Mineral Diagenesis in Core KM-3 of Searles Lake, California
Abstract Core KM-3 at Searles Lake, California, comprises 693.4 m of lacustrine sediments deposited over the past 3.2 m.y. The lake water evolved from moderately saline, slightly alkaline, and dominated by Na, Ca, Cl, SO 4 , and HCO 3 + CO 3 to a highly alkaline brine dominated by Na and CO, ions. Sediments are chiefl…
High‐resolution monochromated XPS of poly(methyl methacrylate) thin films on a conducting substrate
Abstract Experiments directed towards obtaining high‐resolution XPS data for spin‐cast thin films of poly(methylmethacrylate) (PMMA) on a silicon substrate are described. Thickness‐dependent charging and the effect of vertical differential charging on spectral resolution are demonstrated, and the conditions required f…
Raman spectroscopy of sulphur‐containing amino acids and their derivatives adsorbed on silver
Abstract Surface‐enhanced Raman scattering (SERS) of sulphur‐containing amino acids and peptides ( L ‐cysteine, L ‐cystine, L ‐methionine, L ‐methionylglycine and glycyl‐ L ‐methionine) in silver sol was investigated. The Raman signal was enhanced by a factor of about 10 5 . In the pH range 5–11, L ‐cysteine was found…
Shape anisotropy and ordered phases in reversibly assembling lyotropic systems
When a fluid composed of sufficiently asymmetric hard particles is compressed, purely entropic effects give rise to phases possessing long-range orientational and, in some cases, translational order. The various ordered phases observed in conventional lyotropic liquid-crystal systems are commonly described in terms of…
Temperature- or Pressure-Induced Structure Changes of a Spin Crossover Fe(II) Complex; [Fe(bpy)2(NCS)2]
Abstract The crystal structures of polymorph II of diisothiocyanatobis(2,2′-bipyridine)iron(II), [Fe(bpy)2(NCS)2], in the high- (298 K) and low-spin states (175, 110 K) were determined by an X-ray diffraction method. The crystal is orthorhombic, space group Pcnb and Z=4 over the entire temperature range. At 298 K, a=1…
[Cu3(.mu.3-.eta.1-C.tplbond.CPh)2(.mu.-Ph2PCH2PPh2)3][BF4], a triangulo copper(I) complex with an unprecedented bicapping system of two asymmetric .mu.3-.eta.1-acetylide ligands
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXT[Cu3(.mu.3-.eta.1-C.tplbond.CPh)2(.mu.-Ph2PCH2PPh2)3][BF4], a triangulo copper(I) complex with an unprecedented bicapping system of two asymmetric .mu.3-.eta.1-acetylide ligandsJosefina Diez, M. Pilar Gamasa, Jose Gimeno, Angel Aguirre, and Santiago Garcia-GrandaCite this: O…
Effects of Some Additives on Thermoelectric Properties of FeSi 2 Thin Films
Effects of some additives (V, Cr, Mn, Co, Ni, Pd, Pt) on thermoelectric properties of FeSi 2 thin films were studied. V, Cr or Mn-doped FeSi 2 films were of p-type semiconductor and Co, Ni, Pd and Pt-doped FeSi 2 films of n-type semiconductor. It was indicated that V or Cr are more suitable additives in thermoelectric…
Phenyl substituents and excited-state lifetimes in ruthenium(II) terpyridyls
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTPhenyl substituents and excited-state lifetimes in ruthenium(II) terpyridylsClark R. Hecker, Ann. K. I. Gushurst, and David R. McMillinCite this: Inorg. Chem. 1991, 30, 3, 538–541Publication Date (Print):February 1, 1991Publication History Published online1 May 2002Published…
Diadamantylsilylene and its stereochemistry of addition
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTDiadamantylsilylene and its stereochemistry of additionDong Ho Pae, Manchao Xiao, Michael Y. Chiang, and Peter P. GasparCite this: J. Am. Chem. Soc. 1991, 113, 4, 1281–1288Publication Date (Print):February 1, 1991Publication History Published online1 May 2002Published inissu…
Preparation of Tetragonal Barium Titanate Thin Film on Titanium Metal Substrate by Hydrothermal Method
Tetragonal BaTiO 3 thin films were prepared directly on Ti metal substrates in Ba(OH) 2 solutions by a hydrothermal method at temperatures 400° to 800°C for 5 to 240 min. The film thickness estimated from weight gain of Ti plate was in the range from 0.5 to 2.5 μm, and it increased with increasing treatment temperatur…
Light-induced dioxygen reduction at thin film electrodes of various porphyrins
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTLight-induced dioxygen reduction at thin film electrodes of various porphyrinsD. Schlettwein, M. Kaneko, A. Yamada, D. Woehrle, and N. I. JaegerCite this: J. Phys. Chem. 1991, 95, 4, 1748–1755Publication Date (Print):February 1, 1991Publication History Published online1 May…
Control of back electron transfer from charge-transfer ion pairs by zeolite supercages
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTControl of back electron transfer from charge-transfer ion pairs by zeolite supercagesS. Sankararaman, K. B. Yoon, T. Yabe, and Jay K. KochiCite this: J. Am. Chem. Soc. 1991, 113, 4, 1419–1421Publication Date (Print):February 1, 1991Publication History Published online1 May…