Materials Literature
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Gut organisiert! Eine neue Klasse phosphoreszierender Materialien entstand durch Kuppeln Trialkylgallat-funktionalisierter Alkine an eine planare PtII-Terpyridin-Einheit. Pt⋅⋅⋅Pt-Wechselwirkungen führen bei diesen Komplexen zur Bildung intensiv farbiger Organogele und columnarer Flüssigkristalle (siehe Bild). Amidgrup…
Intense synchrotron radiation produces specific structural and chemical damage to crystalline proteins even at 100 K. Carboxyl groups of acidic residues (Glu, Asp) losing their definition is one of the major effects observed. Here, the susceptibilities to X-ray damage of acidic residues in tetrameric malate dehydrogen…
It is well known that the durability of tool steel could be improved by deep cryogenic treatment. It has been assumed that the increase of service life of tool steel caused by decrease of retained austenite and/or by formation of nano-scale fine η-carbide. But the principles of deep cryogenic treatment remain unclear…
Abstract Metal isobutylsilsesquioxanes (M‐POSS) with Ti IV and V V metal centres have been prepared by direct corner‐capping of trisilanolisobutyl‐POSS ( 1 ). The synthetic procedure has been followed in solution by FTIR spectroscopy and samples have been characterised by 29 Si{ 1 H} NMR, FTIR, FT‐Raman and UV/Vis spe…
We show that magnetoelectric (ME) laminate composites have characteristics of a previously conjectured, but unfound, fifth network circuit element—the Tellegen gyrator. Our findings establish that ME laminate composites (i) are nonreciprocal electrical elements, (ii) have significant nondissipative I-V conversion near…
In this work the study of oleic acid and oleylamine-capped gold nanoparticles is presented. The structural characterization of the sample shows 6.7 nm gold nanoparticles with a narrow size distribution. The experimental optical absorption spectrum has a maximum at 2.35 eV. The calculated optical absorption spectrum is…
This paper presents results on the electro-thermo-mechanical behavior of piezoelectric materials for use in actuator applications with an emphasis on durability performance. The objective of this study was to compare the performance of different commercially available actuator systems and to determine the properties n…
Six new oligomeric nematic liquid crystals are reported consisting of a triphenylene-based core attached to which are six 4-cyanobiphenyl units via flexible alkyl spacers.
New covalent bonded polymer–calcium silicate hydrate (C–S–H) composites were prepared. For this purpose, two sets of hydrosoluble copolymers, both containing trialkoxysilane (T-silane) and/or methyldialkoxysilane (D-silane) functions, were synthesized. The addition of these polymers during the synthesis of C–S–H by th…
New bifunctional H(4)dota-like ligands with three acetic acid and one phosphinic acid pendant arms and propionate (H(5)do3ap(PrA)) or 4-aminobenzyl (H(4)do3ap(ABn)) reactive groups bound to the phosphorus atom were investigated. Potentiometric studies showed that the ligands have a similar basicity to the parent H(4)d…
We have synthesized a new azobenzene compound hexahexanoyl 4,4‘-dimelaminoazobenzene (He-Diazine-Azo) with self-complementary quadruple hydrogen bonds. The azobenzene in He-Diazine-Azo can undergo trans−cis photoisomerization efficiently. Using such a building block, we prepared azobenzene-containing supramolecular po…
Silver nanorods and nanowires have been synthesized by using a microwave (MW)-polyol method. When AgNO 3 was reduced by ethylene glycol (EG) in the presence of Pt seeds and a long chain length of poly(vinylpyrrolidone) (PVP: Mw = 360 k), mixtures of one-dimensional (1-D) silver nanorods and nanowires and three-dimensi…
High Resolution Image Download MS PowerPoint Slide The selective and stable conversion of ethene to propene, 3C 2 H 4 → 2C 3 H 6, was found on Ni-loaded mesoporous silica catalysts in a continuous gas-flow system at around 673 K and atmospheric pressure. The one-path conversion of ethene was 68%, and the propene selec…
Aluminum trihydride (alane) is one of the most promising among the prospective solid hydrogen-storage materials, with a high gravimetric and volumetric density of hydrogen. In the present work, the alane, crystallizing in the gamma-AlH3 polymorphic modification, was synthesized and then structurally characterized by m…
Single-phase CamCenFexCo4−xSb12 compounds filled by Ca and Ce were synthesized by using melting-quench-diffusion annealing reaction method. The structure and thermoelectric properties of double atoms filled skutterudite compounds were investigated. The results of Rietveld refinement indicate high reliabilities of fill…
The reactivity of several Pd-O species toward CO oxidation was compared experimentally, making use of chemically, structurally and morphologically different model systems such as single-crystalline Pd(111) covered by adsorbed oxygen or a Pd(5)O(4) surface oxide layer, an oriented Pd(111) thin film on NiAl oxidized tow…
Reactions of 1,4,7-triazacyclononane-1,4,7-triyl-tris(methylenephosphonic acid) [notpH(6), C(9)H(18)N(3)(PO(3)H(2))3] with different lanthanide salts result in four types of Ln-notp compounds: [Ln{C(9)H(20)N(3)(PO(3)H)(2)(PO(3))}(NO(3))(H(2)O)].4H2O (1), [Ln = Eu (1 Eu), Gd (1 Gd), Tb (1 Tb)], [Ln{C(9)H(20)N(3)(PO(3)H…
The optical properties, Raman spectra, and magnetization of Zn 1− x Co x O (0≤ x <0.1) thin films are reported. Optical transmission spectra confirm the substitution of Co 2+ cations for Zn 2+ ions at the tetrahedral sites of ZnO. Raman spectra of films annealed in air show an additional broad vibrational mode, attrib…
In the present work we report multiferroic behavior in lead zirconate titanate (PZT)–cobalt iron oxide (CFO) composite thin films. It is found that upon annealing, the multilayered structures are intermixed at least partially, and CFO is phase separated into PZT matrix to form a composite film. The phase separation be…
Functionalized silver nanoparticles (NPs) were synthesized with a cyano probe and utilized to label the surface of HeLa cells expressing a recombinant transmembrane domain of the platelet-derived growth factor receptor. Optical imaging, high-resolution Raman imaging, and scanning electron microscopy (SEM) were used to…