10.04.2013 | Abhimanew Dhir; Chullikkattil P. Pradeep; Manisha Devi, Dalton Transactions, 2013

New melamine based ligand 3 with pyrene as fluorophore is synthesized and characterized. The sequential addition of Au3+ ions and ascorbic acid to the solution of 3 in EtOH:H2O (9.5:0.5 v/v) generates gold micro particles (AuMPs). However, the particle size distribution and fluorescence ...

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10.04.2013 | Korneel Cats; Inés González-Jiménez; Yijin Liu; Johanna Nelson; Douglas van Campen; Florian Meirer; Ad M.J. van der ..., Chemical Communication, 2013

Transmission X-ray microscopy has been used to investigate individual Co/TiO2 Fischer-Tropsch (FT) catalyst particles in 2-D and 3-D with 30 nm spatial resolution. Tomographic elemental mapping showed that Co is heterogeneously concentrated in the centre of the catalyst particles. In ...

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10.04.2013 | Bernd Johannes Plietker; Johannes Klein; Burkhard Miehlich; Johannes Kaestner, Dalton Transactions, 2013

The mechanism of carbonylation of alkyl halides using [Fe(CO)3(NO)]- has been studied using density functional theory (DFT). Our results suggest an SN2 mechanism for the alkylation event followed by a well-defined oxidative addition and alkyl migration. An experimentally elusive common ...

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10.04.2013 | Heinz-Bernhard Kraatz; Farkhondeh Fathi; yitao long; Cong Kong; Yueqiang Wang; Yongshu Xie, Analyst, 2013

The substituted phorphyrin 2-cyano-3-(2′-(5′,10′,15′,20-tetraphenyl porphyrinato zinc-(II))yl) acrylic acid was used to modify nanostructured Ag surfaces. This porphyrin-modified surface exhibits photocurrent when exposed to a source of light that are modulated in the presence of nucleotides. ...

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10.04.2013 | Durocher, J; Cahoon, J R; Richards, N L, Materials Science and Technology, 2013

Abstract: The baseline metallography of single crystal alloy N5 was compared with laser welded material to evaluate the effect of the welding process on cracking behaviour. In addition, baseline thermomechanical fatigue data were compared with the fatigue properties of welded ...

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10.04.2013 | Ko, Y G; Lee, J S; Loorentz, Materials Science and Technology, 2013

Abstract: The microstructural evolution and mechanical properties of ultrafine grained interstitial free steel fabricated by multipass differential speed rolling (DSR) technique were investigated. A series of DSR operations were performed up to four passes under a roll speed ratio of ...

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10.04.2013 | Chang, Yongmin; Ho Lee, Gang; Kim, Tae-Jeong; Chae, Kwon-Seok, Current Topics in Medicinal Chemistry, 2013

Abstract: Magnetic resonance imaging (MRI) contrast agents have been used routinely for more than 20 years in order to increase sensitivity and specificity of lesion detection. MRI contrast agents (CAs) are usually categorized according to their magnetic behavior, biodistribution, and ...

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10.04.2013 | Taher, A; Jarjoura, G; Kipouros, G J, Corrosion Engineering, Science and Technology, 2013

Abstract: Alloying elements including aluminium, chromium, cobalt, indium, molybdenum, titanium and vanadium were added to a synthetic 90/10 Cu‐Ni alloy and its behaviours in natural sea water and in artificial saline solutions (containing 2·86 wt-%NaCl and 0 or 2260 ppm sulphate) were ...

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10.04.2013 | Fatah, M C; Ismail, M C; Wahjoedi, B A, Corrosion Engineering, Science and Technology, 2013

Abstract: The objective of this work is to study the effect of sulphide ion on the corrosion behaviour of X52 steel in the simulated solution containing sulphate reducing bacteria metabolic products species. Linear polarisation resistance and electrochemical impedance spectroscopy ...

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10.04.2013 | Xiaozhan Cui; Shulin Wang; Yuwei Zhang; Qun Qian; Wei Deng; Hegui Gong, Organic & Biomolecular Chemistry, 2013

This paper highlights Ni-catalyzed allylation of electron-rich aryl bromides with a variety of substituted allylic carbonates using zinc as the terminal reductant, affording E-alkenes regioselectively in good to excellent yields by addition of aryl to the less hindered allylic carbon. The ...

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