Clusters

News Clusters

• Closer to reality

  Heterogeneous gas-solid catalyst reactions occur on the atomic scale and there is increasing evidence single atoms and very small clusters can act as primary active sites in chemical reactions. When studying the reactions taking place at the catalyst surface, scientists usually have to look into ide more

• The dance of the atoms
  

  Catalysts can stop working when atoms on the surface start moving. At the Vienna University of Technology, this dance of the atoms could now be observed and explained. Lone people standing in a ballroom don’t tend to move a lot. It’s only when they find a suitable dance partner that rapid motion set more

• Researchers discover a new class of magic atomic clusters called superhalogens

  An international team of researchers has discovered a new class of magnetic superhalogens – a class of atomic clusters able to exhibit unusual stability at a specific size and composition, which may be used to advance materials science by allowing scientists to create a new class of salts with magne more

White papers Clusters

• Structural and Chemical 3D Imaging with AFM and Raman.
  

  In the Life Sciences and Bio-medical Research, the characterization of chemical compounds within cells or tissues is one of the most important and difficult tasks for researchers to perform. The development of pharmaceuticals such as drug delivery coatings or capsules also requires as much information as possible about their chemical and structural compositions. For the fields of nanotechnology and materials science, a thorough knowledge of the samples' surface morphology on a sub-micron scale is essential more

• Particle sizing with static laser scattering
  

  When determining particle sizes a wide variety of techniques are used in which sieving may be the most popular. Sieving is a relatively simple technique, despite the fact that of course different instrumental approaches can be used. The main advantages of sieving are the low price of the instrumentation and the fact that different fractions of the original sample can be prepared for further use. On the other hand, sieving is very time consuming and yields results only for a very limited number of particle sizes. Results from sieving typically vary due to several factors: the method of moving the sieve, the period of operation, the number of particles on the sieve and some physical properties such as shape or stickiness of the sample. In addition, the actual size of the mesh gaps of the sieves can have large variations from the nominal size more

Publications Clusters

• Femtisecond single-mole infrared spectroscopy of molecular clusters

  The sensitivity limitations of Fourier transform infrared (FTIR) spectroscopy for the detection of molecular clusters formed in rarefied gas expansions can be overcome by synchronizing intense gas pulses at a low duty cycle with rapid interferometer scans. This turns the broadband FTIR approach into more

• Series of Dinuclear and Tetranuclear Lanthanide Clusters Encapsulated by Salen-Type and [small beta]-Diketionate Ligands: Single-Molecule Magnet and Fluorescence Properties

  Three dinuclear [Ln2H2OL12(acac)2]•solvent (1, Ln = Gd, solvent = 2CH2Cl2; 2, Ln = Tb, no solvent; 3, Ln = Er, solvent = one diethyl ether), and two tetranuclear lanthanide clusters [Ln4(μ3-OH)2L22(acac)6]•2(solvent) (4, Ln = Tb, solvent = CH3OH; 5, Ln = Dy, solvent = CH3CN) were structurally, fluor more

• Two chiral multinuclear palladium(II) complexes comprising alternatively arranged isomerous hexanuclear clusters

  Two new chiral hexanuclear palladium(II) complexes [Pd6(Cys)4(CysH)4][Pd6(CysH)8]Cl4•24H2O (1) and [Pd6(HCys)10](NO3)2 •11H2O (2) are prepared through careful control of the reaction conditions. Both complexes comprise two alternatively arranged isomerous hexanuclear Pd(II) clusters. As supported by more

Market studies Clusters

• Saudi Arabia Petrochemicals Report Q4 2012

  The Q412 Saudi Arabia petrochemicals report examines the declining profitability of the Saudi downstream industry and assesses whether the diversification of the country’s production portfolio will help overcome the immediate challenges. The report analyses how trends in Asian markets will affect st more

• Saudi Arabia Petrochemicals Report Q2 2012

  Saudi Arabia is set to overcome its dependence on commodity petrochemicals by developing high performance and speciality-grade petrochemicals, which can add value to exports and put the industry in direct competition with producers in Japan and other more mature markets, according to BMI’s latest Sa more

• United Arab Emirates Petrochemicals Report Q2 2011

  Ethane availability and feedstock pricing will remain key to the future growth of the UAE’s petrochemical industry, according to BMI’s latest UAE Petrochemicals Report. The country will be at a disadvantage compared with Qatar and Saudi Arabia, which have based their rapid and continuing expansion o more

Websites Clusters