Dongfeng Li、Sean Parkin、Guangbin Wang 等 5 位作者2006-02-09Inorganic Chemistry
The synthesis and spectroscopic and magnetic characterization of several hydridotris(3,5-dimethylpyrazol-1yl)borate (Tp*) iron(II) and iron(III) tricyanide complexes, a rectangular cluster, and a one-dimensional chain of squares are described. Treatment of [NEt4][(Tp*)Fe(III)(CN)3] (3) with manganese(II) triflate in d…
Magnetism in coordination complexesLanthanide and Transition Metal ComplexesOrganic and Molecular Conductors Research
Yongchun Zhang、Jacob P. Sizemore、Michael F. Doherty2006-02-09AIChE Journal
Abstract A novel method for modeling the shape evolution of 3‐dimensional (3‐D) faceted crystals has been developed in which the normal distances to each face from an origin inside the crystal are represented by a system of ordinary differential equations. The model is initialized from an arbitrary initial seed shape…
Liquid Crystal Research AdvancementsMaterial Dynamics and PropertiesCrystallization and Solubility Studies
Hikmat Najafov、Ivan Biaggio、Vitaly Podzorov 等 5 位作者2006-02-09Physical Review Letters
By simultaneously measuring the excitation spectra of transient luminescence and transient photoconductivity after picosecond pulsed excitation in rubrene single crystals, we show that free excitons are photoexcited starting at photon energies above 2.0 eV. We observe a competition between photoexcitation of free exci…
Photorefractive and Nonlinear OpticsLuminescence and Fluorescent MaterialsMechanical and Optical Resonators
Kosmas L. Tsakmakidis、Christian Hermann、Andreas Klaedtke 等 5 位作者2006-02-09Physical Review B
We present a detailed analytical study of surface plasmon polaritons (SPPs) in generalized asymmetric slab waveguides with a core of negative permittivity and permeability. Profiting from the duality principle, we confine ourselves to the analysis of $p$-polarized (TM) SPP eigenmodes, which also occur in thin metallic…
Metamaterials and Metasurfaces ApplicationsPlasmonic and Surface Plasmon ResearchPhotonic Crystals and Applications
Shengfu Chen、Lingyun Liu、Shaoyi Jiang2006-02-09Langmuir
In this work, we demonstrate the strong resistance of oligo(phosphorylcholine) (OPC) self-assembled monolayers (SAMs) to protein adsorption and cell adhesion. OPC SAMs were characterized using X-ray photoelectron spectroscopy (XPS), and protein adsorption was measured using a surface plasmon resonance (SPR) sensor. Re…
Quantum Dots Synthesis And PropertiesPolymer Surface Interaction StudiesMolecular Junctions and Nanostructures
Michael J. Ahrens、Michael J. Tauber、Michael R. Wasielewski2006-02-09The Journal of Organic Chemistry
1,6- and 1,7-bis(n-octylamino)perylene-3,4:9,10-bis(dicarboximide) were synthesized by reaction of n-octylamine with the corresponding dibromo compounds. These compounds display intense charge-transfer optical transitions in the visible spectrum (approximately 550-750 nm) and fluoresce weakly (Phi(F) < 0.06). Cyclic v…
Organic Electronics and PhotovoltaicsConducting polymers and applicationsPhotochemistry and Electron Transfer Studies
Winyu Tanthapanichakoon、Amornvadee Veawab、Bryce McGarvey2006-02-09Industrial & Engineering Chemistry Research
Amine treating plants have long encountered the problem of solvent degradation associated with nonregenerable heat-stable salts. This work investigated the effect of six heat-stable salts on corrosion of process equipment made of carbon steel 1018 and stainless steel 304. The investigation was done by conducting elect…
Corrosion Behavior and InhibitionFuel Cells and Related MaterialsCarbon Dioxide Capture Technologies
Lixin Feng、Xiaoming Tang、Yueyue Yan 等 6 位作者2006-02-09physica status solidi (a)
Abstract We have developed a novel route to reduce the dielectric loss of CaCu 3 Ti 4 O 12 (CCTO) material based on the internal‐barrier‐layer‐capacitance (IBLC) model. By the partial La‐for‐Ca substitution the dielectric loss was suppressed re‐markably while the giant dielectric constant still remains. The sample of…
Ferroelectric and Piezoelectric MaterialsMultiferroics and related materialsDielectric properties of ceramics
Donavon M. Delozier、Kent A. Watson、Joseph G. Smith 等 5 位作者2006-02-09Macromolecules
Novel aromatic/aliphatic polyimides were prepared from 2,7-diamino-9,9‘-dioctylfluorene (AFDA) and aromatic dianhydrides. Upon investigating the effectiveness of these polyimides for debundling single wall carbon nanotubes (SWNTs) in solution, three were discovered to aid in the dispersion of SWNTs in N,N -dimethylace…
Carbon Nanotubes in CompositesSynthesis and properties of polymersTribology and Wear Analysis
Rongyan Wang、Dianzeng Jia、Zhang Li 等 7 位作者2006-02-09Advanced Functional Materials
Abstract A novel and convenient method—solid‐state chemical reaction at room temperature—is reported for the synthesis of amino acid polyoxometalate nanotubes. As a convenient synthesis method for nanomaterials, it may open up a new pathway for the fabrication of organic–inorganic hybrid materials with nanotubular str…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsAdvanced Nanomaterials in Catalysis
Christina Keith、R. Amaranatha Reddy、Anton Hauser 等 5 位作者2006-02-09Journal of the American Chemical Society
Polyphilic molecules composed of a bent aromatic core, oligo(siloxane) units, and alkyl segments were synthesized, and the self-organization of these molecules was investigated. Most materials organize into polar smectic liquid crystalline phases. The switching process of these mesophases changes from antiferroelectri…
Liquid Crystal Research AdvancementsPorphyrin and Phthalocyanine ChemistrySynthesis and Properties of Aromatic Compounds
Lixue Zhang、Xuping Sun、Yonghai Song 等 6 位作者2006-02-09Langmuir
Didodecyldimethylammonium bromide (DDAB) lipid bilayer-protected gold nanoparticles (AuNPs), which were stable and hydrophilic, were synthesized by in situ reduction of HAuCl(4) with NaBH(4) in an aqueous medium in the presence of DDAB. As-prepared nanoparticles were characterized by UV-vis spectra, transmission elect…
Gold and Silver Nanoparticles Synthesis and ApplicationsPolymer Surface Interaction StudiesNanocluster Synthesis and Applications
Libai Huang、Todd D. Krauss2006-02-09Physical Review Letters
Auger-like exciton-exciton annihilation in isolated single-walled carbon nanotubes (SWNTs) has been studied by femtosecond transient absorption spectroscopy. We observe a quantization of the Auger recombination process and extract dynamics for 2 and 3 electron-hole pair excited states. We further demonstrate that Auge…
Carbon Nanotubes in CompositesFullerene Chemistry and ApplicationsMechanical and Optical Resonators
Virgil Percec、Andrés E. Dulcey、Mihai Peterca 等 7 位作者2006-02-09Proceedings of the National Academy of Sciences
The self-assembly of the dendritic dipeptides (4-3,4-3,5)nG2-CH2-Boc-L-Tyr-L-Ala-OMe and their achiral dendritic alcohol (4-3,4-3,5)nG2-CH2OH precursors, both with n = 1-16, where n represents the number of methylenic units in the alkyl groups of the dendron, are reported. All chiral dendritic dipeptides and achiral d…
Metal-Organic Frameworks: Synthesis and ApplicationsSupramolecular Self-Assembly in MaterialsDendrimers and Hyperbranched Polymers
Soji Shimizu、Atsuhiro Osuka2006-02-09European Journal of Inorganic Chemistry
Abstract meso ‐Aryl‐substituted expanded porphyrins are structural analogues of meso ‐aryl‐substituted porphyrins. They exhibit rich and novel coordination behaviors, including multi‐metal chelation due to the large cavities, spin–spin interaction arising from the proximity of metal centers, and large changes in their…
Supramolecular Chemistry and ComplexesPorphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent Materials
Alicia Toscano、Maria M. Santore2006-02-09Langmuir
Using AFM (atomic force microscopy) to probe protein conformation and arrangement, and TIRF (total internal reflectance fluorescence) to monitor kinetics, fibrinogen adsorption on three different silica-based surfaces was studied: the native oxide on silicon, acid-etched microscope slides, and acid-etched polished gla…
Polymer Surface Interaction StudiesForce Microscopy Techniques and ApplicationsBlood properties and coagulation
Feng Shi、Yan‐Yan Song、Jianjun Niu 等 6 位作者2006-02-09Chemistry of Materials
This paper describes the use of galvanic cell reaction as a facile method to chemically deposit Ag nanostructures on the p -silicon wafer on a large scale. When the Ag covered silicon wafer is further modified with a self-assembled monolayer of n -dodecanethiol, a superhydrophobic surface can be obtained with a contac…
Surface Modification and SuperhydrophobicityAdvanced Sensor and Energy Harvesting MaterialsElectrohydrodynamics and Fluid Dynamics
Z. Q. Li、G. M. Wang、N. Sai 等 8 位作者2006-02-09arXiv
We report on infrared (IR) spectro-microscopy of the electronic excitations in nanometer-thick accumulation layers in FET devices based on poly(3-hexylthiophene). IR data allows us to explore the charge injection landscape and uncovers the critical role of the gate insulator in defining relevant length scales. This wo…
Materials ScienceSoft Condensed Matter
Aaron Fleet、Darren Dale、Arthur R. Woll 等 5 位作者2006-02-09Physical Review Letters
We grew SrTiO3 on SrTiO3(001) by pulsed laser deposition, using x-ray scattering to monitor the growth in real time. The time-resolved small-angle scattering exhibits a well-defined length scale associated with the spacing between unit-cell high surface features. This length scale imposes a discrete spectrum of Fourie…
Advancements in Photolithography TechniquesX-ray Diffraction in CrystallographySurface Roughness and Optical Measurements
Chunyan Bao、Ran Lu、Ming Jin 等 8 位作者2006-02-09Chemistry - A European Journal
We report on the synthesis and self-assembly of a new series of discotic molecules containing triphenylbenzene as the core and alkoxy side chain with varying length. It was found that compounds 3 a-c, 4 b and 5 b could form stable gels in several apolar solvents. Transmission electron microscopy (TEM) images revealed…
Luminescence and Fluorescent MaterialsSupramolecular Self-Assembly in MaterialsPolydiacetylene-based materials and applications