Single-molecule optoelectronics

Article Abstract:

A direct reporter of nanoscale charge injection and transport through discrete energy levels, bright Ag(sub n) electroluminescence is harnessed to create single-molecule light-emitting diodes (LEDs) and optoelectronic logic gates and even to demonstrate full addition operations. With discrete states, several-atom Ag(sub n) nanoclusters exhibit molecule-like behavior with strong visible fluorescence and robust optical properties.

Gold, Silver, Analysis, Electric properties, Electroluminescence, Optoelectronics

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Organolanthanide-catalyzed hydroamination

Article Abstract:

The study develops sterically less encumbered ligand design to improve reaction rates, a metallocene and non-metallocene chiral lanthanide complexes and have been synthesized for enantioselective hydroamination. Analogous non-amine hydroelementation results reveal both similarities to and differences from hydroamination, extending knowledge of lanthanide catalytic chemistry.

Nonferrous Metals NEC, Amines, Chemical synthesis, Rare earth metals

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How to hide zinc in a small protein

Article Abstract:

Small cysteine-rich proteins and related domains of some large proteins bind tri- and tetranuclear zinc clusters with topologies resembling fragments of Zn(super II) sulfide minerals, which is hidden and inert toward Zn or Cd exchange. It is found that proteins can exert fine control over both the thermodynamics and kinetics of zinc binding in thiolate clusters.

Secondary nonferrous metals, Protein research, Zinc, Zinc (Metal), Atomic properties, Chemical thermodynamics

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