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Hierarchical Self‐Assembly of Supramolecular Spintronic Modules into 1D‐ and 2D‐Architectures with Emergence of Magnetic Properties
Author(s) -
Ruben Mario,
Ziener Ulrich,
Lehn JeanMarie,
Ksenofontov Vadim,
Gütlich Philipp,
Vaughan Gavin B. M.
Publication year - 2004
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200400584
Subject(s) - supramolecular chemistry , spintronics , superstructure , self assembly , materials science , ligand (biochemistry) , ion , nanotechnology , supramolecular assembly , crystallography , chemistry , physics , condensed matter physics , crystal structure , ferromagnetism , receptor , organic chemistry , thermodynamics , biochemistry
Hierarchical self‐assembly of complex supramolecular architectures allows for the emergence of novel properties at each level of complexity. The reaction of the ligand components A and B with Fe II cations generates the [2×2] grid‐type functional building modules 1 and 2 , presenting spin‐transition properties and preorganizing an array of coordination sites that sets the stage for a second assembly step. Indeed, binding of La III ions to 1 and of Ag I ions to 2 leads to a 1D columnar superstructure 3 and to a wall‐like 2D layer 4 , respectively, with concomitant modulation of the magnetic properties of 1 and 2 . Thus, to each of the two levels of structural complexity generated by the two sequential self‐assembly steps corresponds the emergence of novel functional features.