The Structural and Functional Roles of Rhodium(<scp>II</scp>)–Rhodium(<scp>II</scp>) Dimers in Multinuclear Ruthenium(<scp>II</scp>) Complexes

Abstract

Giving in to templation: Coordination of acid-functionalized {Ru(tpy)2}2+ units (tpy=2,2′:6′,2′′-terpyridine) to a tetracarboxylato rhodium dimer leads to multinuclear polypyridylruthenium(II) complexes (see crystal structure, orange: Ru, purple: Rh, blue: N, red: O). Efficient energy transfer from the Ru-based MLCT levels to the lower-lying level involving the Rh dimer takes place at room temperature. Supporting information for this article (1H NMR spectra for complexes 1–3, electrochemical studies of some representative compounds, details on the preparation and chromatographic separation of the compounds, elemental analysis, ESI-MS, and crystallographic data) is available on the WWW under http://www.wiley-vch.de/contents/jc_2002/2005/z500392_s.pdf or from the author. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.