Published April 1988 | Version v1
Journal article Metadata-only

Real-time atomic-resolution imaging of polymorphic changes in ruthenium clusters

Creators

  • 1. National Center for High Resolution Electron Microscopy, Lund (Sweden)
  • 2. Arizona State Univ., Tempe (USA). Center for Solid State
  • 3. Essen Univ. (Gesamthochschule) (Germany, F.R.). Inst. fuer Anorganische Chemie

Description

The existence of a quasi fluid state of very small metal particles at high temperatures was the quintessential result of high-resolution electron-microscopic video recordings of Ru microcrystals, which form from [Ru55(PtBu3)12Cl20] upon bombardment with electrons. The HREM video recording of a 3-nm Ru crystal shows that both cubic and hexagonal close-packed structures exist simultaneously in the same crystal. (orig.)

Abstract (German)

Dass sich kleinste Metallpartikel bei hoeheren Temperaturen in einem quasi-fluessigen Zustand befinden koennen, das ist die Quintessenz hochaufgeloester elektronenmikroskopischer Videoaufzeichungen von Ru-Mikrokristallen, die aus [Ru55(PtBu3)12Cl20] bei der Bestrahlung mit Elektronen entstehen. Dass in einem Kristall kubisch dichteste und hexagonal dichteste Packung nebeneinander vorliegen koennen, zeigt die HREM-Aufnahme eines 3 nm grossen Ru-Kristalls. (orig.)

Additional details

Additional titles

Original title (German)
Atomar aufgeloeste Echtzeit-Abbildung polymorpher Aenderungen bei Ruthenium-Clustern

Publishing Information

Journal Title
Angew. Chem.
Journal Volume
100
Journal Issue
4
Series
Angew. Chem.
Journal Page Range
580-583
ISSN
0044-8249
CODEN
ANCEA

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
19087057
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ATOMS; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTAL-PHASE TRANSFORMATIONS; ELECTRON BEAMS; ELECTRON MICROSCOPY; MICROSTRUCTURE; PHYSICAL RADIATION EFFECTS; RUTHENIUM; RUTHENIUM COMPOUNDS; SOLID CLUSTERS
Descriptors DEC
BEAMS; ELEMENTS; LEPTON BEAMS; METALS; MICROSCOPY; PARTICLE BEAMS; PHASE TRANSFORMATIONS; PLATINUM METALS; RADIATION EFFECTS; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS