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Current Chemistry News of the Week



Molecular Banister
Chemists Build a Molecular Banister

Chemists at the University of Basel in Switzerland have succeeded in twisting a molecule by combining molecular strands of differing lengths.

Image: Based on the strands of different lengths (blue and gray), the new helical molecule (right) adopts a spatial arrangement (schematic diagram in the center) that resembles the banister of a spiral staircase [Credit, Illustration: University of Basel, Department of Chemistry].



Buckyball Molecules Grow
Buckyballs: Live Images from the Nano-cosmos

Researchers watch layers of football molecules grow.

 

Image:

This is an artist's impression of the multilayer growth of buckyballs.

[Credit: Nicola Kleppmann/Technical University Berlin, Germany]



Normalized activity
Decay rates of radioactive substances are constant

Precise activity measurements on Cl-36 samples refute a dependence of the decay rate on the distance between the Earth and the Sun.

Image: The normalized activity as a function of time shows no dependence on the season in PTB's data, contrary to the data obtained at the Ohio State University Research Reactor (OSURR) [Image credit: PTB].



Strongest material
Carbon's New Champion

Rice University theorists calculate atom-thick carbyne chains may be strongest material ever.

 

Image:

Rice University researchers have determined from first-principle calculations that carbyne would be the strongest material yet discovered.

The carbon-atom chains would be difficult to make but would be twice as strong as two-dimensional graphene sheets.

[Credit: Vasilii Artyukhov, Rice University].



Biomass catalytic tandem reaction
A Tandem for Biomass

Catalytic tandem reaction for the conversion of lignin and bio-oil by hydroxylation of phenols to form arenes.

Image: The conversion of lignin into low-boiling-point arenes instead of high-boiling-point phenols could greatly facilitate conventional refinery processes. A new procedure for the depolymerization of lignin and simultaneous conversion phenols into arenes is described.

[Source: Angewandte Chemie]







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H He
Li Be B C N O F Ne
Na Mg Al Si P S Cl Ar
K Ca Ga Ge As Se Br Kr
Rb Sr In Sn Sb Te I Xe
Cs Ba Tl Pb Bi Po At Rn
Fr Ra Uut Fl Uup Lv Uus Uuo

Sc Ti V Cr Mn Fe Co Ni Cu Zn
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La Ce Pr Nd Pm Sm Eu Gd
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Ac Th Pa U Np Pu Am Cm
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