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Dynamic Complex-to-Complex Transformations of Heterobimetallic Systems Influence the Cage Structure or Spin State of Iron(II) Ions.
Hardy, Matthias; Struch, Niklas; Holstein, Julian J; Schnakenburg, Gregor; Wagner, Norbert; Engeser, Marianne; Beck, Johannes; Clever, Guido H; Lützen, Arne.
Afiliação
  • Hardy M; Rheinische Friedrich-Wilhelms-Universität Bonn, Kekulé-Institut für Organische Chemie und Biochemie, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
  • Struch N; Rheinische Friedrich-Wilhelms-Universität Bonn, Kekulé-Institut für Organische Chemie und Biochemie, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
  • Holstein JJ; Current address: Arlanxeo Netherlands B.V., Urmonderbaan 24, 6167 RD, Geleen, The Netherlands.
  • Schnakenburg G; Technische Universität Dortmund, Fakultät für Chemie und Chemische Biologie, Otto-Hahn-Straße 6, 44227, Dortmund, Germany.
  • Wagner N; Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
  • Engeser M; Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
  • Beck J; Rheinische Friedrich-Wilhelms-Universität Bonn, Kekulé-Institut für Organische Chemie und Biochemie, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
  • Clever GH; Institut für Anorganische Chemie, Rheinische Friedrich-Wilhelms-Universität Bonn, Gerhard-Domagk-Straße 1, 53121, Bonn, Germany.
  • Lützen A; Technische Universität Dortmund, Fakultät für Chemie und Chemische Biologie, Otto-Hahn-Straße 6, 44227, Dortmund, Germany.
Angew Chem Int Ed Engl ; 59(8): 3195-3200, 2020 Feb 17.
Article em En | MEDLINE | ID: mdl-31788925
ABSTRACT
Two new heterobimetallic cages, a trigonal-bipyramidal and a cubic one, were assembled from the same mononuclear metalloligand by adopting the molecular library approach, using iron(II) and palladium(II) building blocks. The ligand system was designed to readily assemble through subcomponent self-assembly. It allowed the introduction of steric strain at the iron(II) centres, which stabilizes its paramagnetic high-spin state. This steric strain was utilized to drive dynamic complex-to-complex transformations with both the metalloligand and heterobimetallic cages. Addition of sterically less crowded subcomponents as a chemical stimulus transformed all complexes to their previously reported low-spin analogues. The metalloligand and bipyramid incorporated the new building block more readily than the cubic cage, probably because the geometric structure of the sterically crowded metalloligand favours the cube formation. Furthermore it was possible to provoke structural transformations upon addition of more favourable chelating ligands, converting the cubic structures into bipyramidal ones.
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Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article

Texto completo: 1 Base de dados: MEDLINE Idioma: En Ano de publicação: 2020 Tipo de documento: Article