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“Nanoobjects” by Self‐Assembly Concomitant with Modifications under Alterable Boundary Conditions: Incorporation of Paramagnetic Metal Centers (Cu 2+ ) in Ring‐Shaped Molybdenum‐Oxide Based Clusters
Author(s) -
Müller Achim,
Krickemeyer Erich,
Bögge Hartmut,
Schmidtmann Marc,
Kögerler Paul,
Rosu Christina,
Beckmann Eike
Publication year - 2001
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/1521-3773(20011105)40:21<4034::aid-anie4034>3.0.co;2-r
Subject(s) - molybdenum , ring (chemistry) , molybdenum oxide , oxide , concomitant , metal , paramagnetism , materials science , self assembly , nanotechnology , crystallography , chemistry , metallurgy , physics , organic chemistry , condensed matter physics , medicine
Are adaptations in the nanocosmos observable? Or in other words, can formation or self‐assembly of nanoparticles be achieved with a variety of characteristic modifications of a parent structure based solely on the variation of boundary conditions? This possibility exists for the ring‐shaped nanostructured giant molybdenum clusters—known as “big wheels” (see picture)—in which well‐defined transformations and reactions can be observed at various well‐defined positions on the surface and even internally. The integration of magnetic copper centers into cavities (violet tetrahedra) of exactly the right size is described.