Mapping the Sequential Self-Assembly of Heterometallic Clusters: From a Helix to a Grid

Two iron/cobalt mixed‐valence clusters were synthesized using multidentate polypyridyl ligands (see picture: FeII orange, FeIII yellow, CoII blue, O red). A heptanuclear helix and a [3×3] grid complex form depending on the metal ion stoichiometry. ESI‐MS measurements suggest that the helical cluster...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2011-05, Vol.50 (21), p.4844-4848
Main Authors: Newton, Graham N., Onuki, Tatsuya, Shiga, Takuya, Noguchi, Mao, Matsumoto, Takuto, Mathieson, Jennifer S., Nihei, Masayuki, Nakano, Motohiro, Cronin, Leroy, Oshio, Hiroki
Format: Article
Language:English
Subjects:
cobalt
iron
mass spectrometry
self-assembly
spin states
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Summary:Two iron/cobalt mixed‐valence clusters were synthesized using multidentate polypyridyl ligands (see picture: FeII orange, FeIII yellow, CoII blue, O red). A heptanuclear helix and a [3×3] grid complex form depending on the metal ion stoichiometry. ESI‐MS measurements suggest that the helical cluster is an intermediate to the grid complex.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.201007388