Maxwell J. Crossley、Paul J. Sintic、James A. Hutchison 等 4 位作者2005-01-01Organic & Biomolecular Chemistry
Tris-porphyrin and tetrakis-porphyrin arrays 1 and 2 are proposed as models for the arrangement of the chromophores that constitute photosynthetic reaction centres (PRC's). Their porphyrinic chromophores are similar in distance apart to the key chromophores of PRC's and the C2 symmetric arrangement of the macrocycles…
Photosynthetic Processes and MechanismsPorphyrin and Phthalocyanine ChemistryPhotochemistry and Electron Transfer Studies
А. И. Кривчиков、V. G. Manzheliı̆、O. A. Korolyuk 等 5 位作者2005-01-01Physical Chemistry Chemical Physics
The thermal conductivity of tetrahydrofuran hydrate has been measured in the temperature region 2-220 K by the steady-state potentiometric method. The temperature dependence of the thermal conductivity exhibits behavior typical of amorphous substances. It is shown that above 100 K the mean free path of the phonons is…
Methane Hydrates and Related PhenomenaAdvanced NMR Techniques and ApplicationsSolid-state spectroscopy and crystallography
Xi Lin、Ju Li、Elisabeth Smela 等 4 位作者2005-01-01International Journal of Quantum Chemistry
Abstract Ab initio calculations show that a neutral polypyrrole chain in the ground state assumes a helical shape resulting from a novel bending mechanism, while upon oxidation the chain becomes planar within the polarons, an effect due to enhanced inter‐ring π bonding. This polaron‐induced conformation change leads t…
Molecular Sensors and Ion DetectionConducting polymers and applicationsLuminescence and Fluorescent Materials
D. Haertle、Andrea Guarino、Jaroslav Hajfler 等 5 位作者2005-01-01Optics Express
We report on the refractive indices of Sn2P2S6 crystals in the wavelength range 550 - 2300 nm. The measurements are performed at room temperature using the minimum deviation method. The dispersion is described by a two oscillator model yielding the oscillator energies and strengths (Sellmeier parameters) for all polar…
Crystal Structures and PropertiesSolid-state spectroscopy and crystallographyOptical and Acousto-Optic Technologies
Haiyan Lu、Wei Xu、Deqing Zhang 等 4 位作者2005-01-01Chemical Communications
A neutral electrochemical chemosensor based on TTF exhibited high selectivity for H2PO4- over a wide range of anions and the significant C-H...O hydrogen bonding between C=C-H of the TTF unit and H2PO4- played an important role in regulating the selectivity.
Molecular Sensors and Ion DetectionOrganic and Molecular Conductors ResearchSolid-state spectroscopy and crystallography
Roy Copping、Andrew J. Gaunt、Iain May 等 8 位作者2005-01-01Dalton Transactions
We report the syntheses and crystal structures of (NH4)11[Ln(III)(PMo11O39)2.xH2O (where Ln = every trivalent lanthanide cation except promethium) in which two lacunary [PMo11O39]7- anions sandwich an 8-coordinate Ln(III) cation to yield the complex anion, [LnIII(PMo11O39)2]11-. The 14 salts crystallise in two differe…
Metal-Organic Frameworks: Synthesis and ApplicationsPolyoxometalates: Synthesis and ApplicationsChemical Synthesis and Characterization
Lidia Adamczyk、Paweł J. Kulesza、Krzysztof Miecznikowski 等 6 位作者2005-01-01Journal of The Electrochemical Society
Electrodeposition and electrochemical charging of hybrid organic/inorganic films composed of the poly(3,4-ethylenedioxythiophene), PEDOT, conducting polymer matrix, and Keggin type polyoxometallate, phosphododecamolybdate or phosphododecatungstate redox centers, are described under conditions of aqueous solutions. The…
Electrochemical sensors and biosensorsConducting polymers and applicationsPolyoxometalates: Synthesis and Applications
Riichi Miyamoto、R. Santo、Toshio Matsushita 等 7 位作者2005-01-01Dalton Transactions
A complete series of copper(ii) halide complexes [CuX(tptm)](X = F (), Cl (), Br (), I (); tptm = tris(2-pyridylthio)methyl) with a novel Cu(II)-C(sp(3)) bond has been prepared by the reactions of [Cu(tptm)(CH(3)CN)]PF(6)(.PF(6)) with corresponding halide sources of KF or n-Bu(4)NX (X = Cl, Br, I), and the trigonal bi…
Organometallic Complex Synthesis and CatalysisMagnetism in coordination complexesN-Heterocyclic Carbenes in Organic and Inorganic Chemistry
Alexander A. Doinikov、Richard Manasseh、Andrew Ooi2005-01-01The Journal of the Acoustical Society of America
Damping constants of free oscillations of coupled gas bubbles change considerably when time delays due to the finite speed of sound in the surrounding liquid are taken into account. This effect is illustrated analytically by the example of a two-bubble system and numerically by the example of a bubble chain. By compar…
Methane Hydrates and Related PhenomenaUnderwater Acoustics ResearchUltrasound and Cavitation Phenomena
Havagiray Chitme、Ramesh Chandra、Sadhna Kaushik2005-01-01Phytotherapy Research
The roots of Calotropis gigantea have been used in leprosy, eczema, syphilis, elephantiasis, ulceration and cough in the Indian system of traditional medicine. The present communication evaluated its antipyretic activity by using yeast-induced and TAB (Typhoid) vaccine-induced pyrexia in rats and rabbits. In both yeas…
Essential Oils and Antimicrobial ActivityEthnobotanical and Medicinal Plants StudiesPhytochemistry and Bioactive Compounds
Hema D. Samachetty、Neil R. Branda2005-01-01Chemical Communications
The ability of a pyridine ligand on the photoresponsive 1,2-dithienylethene backbone to coordinate to a ruthenium porphyrin is modulated by interconverting the compound between its electronically insulated ring-open and electronically connected ring-closed form.
Porphyrin and Phthalocyanine ChemistryPhotochromic and Fluorescence ChemistryPhotoreceptor and optogenetics research
Andrew Miles、Frank Wien、Jonathan Lees 等 4 位作者2005-01-01Journal of Spectroscopy
Circular dichroism (CD) spectroscopy is an important tool in structural biology, especially for protein secondary structure analyses. Synchrotron radiation circular dichroism (SRCD) spectroscopy is a modified version of the technique that uses the intense light from a synchrotron source to enable the collection of dat…
Protein Structure and DynamicsGlycosylation and Glycoproteins ResearchEnzyme Structure and Function
Ille C. Gebeshuber、H. Stachelberger、Manfred Drack2005-01-01Journal of Nanoscience and Nanotechnology
Tribology is the branch of engineering that deals with the interaction of surfaces in relative motion (as in bearings or gears): their design, friction, adhesion, lubrication and wear. Continuous miniaturization of technological devices like hard disc drives and biosensors increases the necessity for the fundamental u…
Force Microscopy Techniques and ApplicationsCalcium Carbonate Crystallization and InhibitionDiatoms and Algae Research
S. Langa、Jürgen Carstensen、M. Christophersen 等 7 位作者2005-01-01Journal of The Electrochemical Society
Morphology is one of the basic characteristics of porous layers.For electrochemically grown pores, morphology is strongly dependent on the starting phase of pore growth, the so-called nucleation phase.This paper addresses uniform and nonuniform nucleation of pores on the surface and consequently the development of por…
Silicon Nanostructures and PhotoluminescenceNanowire Synthesis and ApplicationsAnodic Oxide Films and Nanostructures
Hubert S. Gill、Isaac Finger、Ivana Božidarević 等 5 位作者2005-01-01New Journal of Chemistry
A three-step, one-pot procedure provides meso-aryl-α,β-unsubstituted bisdipyrrinato nickel complexes; oxidative coupling of these ligands followed by demetallation affords an unprecedented class of meso-aryl-α,β-unsubstituted bidipyrrins.
Porphyrin and Phthalocyanine ChemistryLuminescence and Fluorescent MaterialsNeonatal Health and Biochemistry
Jason A. Bennett、Yoshiyuki Show、Shihua Wang 等 4 位作者2005-01-01Journal of The Electrochemical Society
The pulsed galvanostatic deposition of nanometer-sized Pt particles on electrically conducting microcrystalline and nanocrystalline diamond thin-film electrodes is reported. The deposition was studied as a function of pulse number (10-50) and current density at the two morphologically different forms of diamond. The d…
Diamond and Carbon-based Materials ResearchForce Microscopy Techniques and ApplicationsElectronic and Structural Properties of Oxides
Qing‐Zheng Yang、Olivier Siri、Pierre Braunstein2005-01-01Chemical Communications
A new and very efficient one-pot synthesis, in water, of 6 pi + 6 pi electron zwitterionic benzoquinonemonoimines involves the first examples of transamination reactions in quinonoid chemistry and allows the introduction of functionalities to, and the fine-tuning of the properties of, a large family of molecules with…
Porphyrin and Phthalocyanine ChemistryBioactive Compounds and Antitumor AgentsOrganic Chemistry Cycloaddition Reactions
Nelly Flores‐Ramírez、Eduardo A. Elizalde‐Peña、Salomón R. Vásquez-García 等 8 位作者2005-01-01Journal of Biomaterials Science Polymer Edition
The synthesis, characterization and degradation of a hybrid chitosan (CTS)/glycidyl methacrylate (GMA) material are reported. These versatile materials (natural-synthetic materials) are potential candidates for dental restoratives. All materials were characterized by infrared spectroscopy (FT-IR), X-ray diffraction an…
Nanocomposite Films for Food PackagingPolymer Surface Interaction StudiesAdvanced Drug Delivery Systems
Pierre F. P. Poudeu、Mercouri G. Kanatzidis2005-01-01Chemical Communications
Sb4Te3 and Sb8Te9 are members of the homology (Sb2Te3)m.(Sb2)n, with structures consisting of Sb2- and Sb2Te3-type slabs stacked along [001]; electrical conductivity and thermopower are reported for several members of this family.
Crystal Structures and PropertiesSolid-state spectroscopy and crystallographyInorganic Chemistry and Materials
Christina Keith、R. Amaranatha Reddy、Carsten Tschierske2005-01-01Chemical Communications
A dimethylsiloxane diluted polysiloxane side chain co-polymer with non-chiral banana-shaped mesogenic units shows an optically isotropic ferroelectric switching polar smectic C phase (SmCPF) consisting of a conglomerate of homogeneously chiral domains with opposite handedness.
Liquid Crystal Research AdvancementsSynthesis and Properties of Aromatic CompoundsMolecular spectroscopy and chirality