Mono‐ and Heterodimetallic Fe II and Ru II Complexes Based on a Novel Heteroditopic 4′‐{Bis(phosphanyl)aryl}‐2,2′:6′,2″‐terpyridine Ligand (Eur. J. Inorg. Chem. 15/2007)

The cover picture shows , with the help of a heteroditopic tpy‐pincer building block, the preparation of heterodimetallic complexes through the “complex as ligand” approach. Even with such small building blocks the construction of large molecular assemblies will eventually be possible. A beautiful example of small building blocks leading to large constructions is the Aquaduct Segovia, a masterpiece of classical Roman architecture. Details of the synthesis and structures of the heterodimetallic complexes are described in the article by G. van Koten et al. on p. 2111 ff.