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Long Range Metal‐Metal Interactions Along Fe−NC−Ru−CN−Fe Chains
Author(s) -
Sheng Tianlu,
Vahrenkamp Heinrich
Publication year - 2004
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200300656
Subject(s) - chemistry , metal , ruthenium , pyridine , crystallography , transition metal , copper , spectral line , inorganic chemistry , medicinal chemistry , catalysis , organic chemistry , physics , astronomy
Trinuclear complexes with linear Fe II −NC−Ru II −CN−Fe II arrays were obtained by attachment of FeCp(dppe) units to the cyanoruthenium complexes trans ‐[Ru(CN) 2 (Py) 4 ] (Py = pyridine, 4‐methylpyridine, 4‐ethylpyridine) . From their cyclic voltammograms it can be concluded that there are long‐range metal−metal interactions between their external iron centers. Partial oxidation led to the isolation of the corresponding mixed‐valent Fe II −NC−Ru II −CN−Fe III complexes. For these the long range metal−metal interactions are evident from a broad MMCT band in the NIR spectra. The MMCT properties were quantified by an analysis using the Hush formalism. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2004)