Arene Ruthenium Cages: Boxes Full of Surprises

Abstract

Self-assembly of polypyridyl ligands with dinuclear arene ruthenium building blocks bridged by chlorido, oxalato or benzoquinonato ligands has allowed the construction of a wide range of cationic metalla complexes possessing different architectures and functionalities: (i) metalla-rectangles showing host-guest possibilities and allowing intramolecular template-controlled photochemical [2 + 2] dimerisation reactions; (ii) metalla-prisms allowing encapsulation of molecules

O,N‐Bidentate Ruthenium Azo Complexes as Catalysts for Olefin Isomerization Reactions

“…[3][4][5][6] Except for isomerization, the catalytic properties of these complexes have been investigated in various fields ranging from hydrogen transfer [7][8][9][10][11] to ring-closing metathesis, [4,[12][13][14] etc. The extension of the catalytic activities towards isomerization depends on the metal itself and its structure.…”

“…[1] Today, the available catalysts have proven their value in many conditions, some of them are even frequently used, for example, the Wilkinson catalyst [(PPh 3 ) 3 RhCl] is employed in the isomerization of allylic ethers. [2] However, there is still a high request for cheaper, readily available and highly selective transition metal systems.…”

Coordination chemistry of 2,4,6-tri(pyridyl)-1,3,5-triazine ligands

“…13. The hydrophobic cavity of these cationic hexanuclear assemblies has been used to act as a microreactor for catalytic reactions [55] 2 ] 6þ (arene ¼ p-cymene, hexamethylbenzene), in which the two arene ruthenium 3-tpt panels are linked together in a face-to-face arrangement by chloro bridges have been recently described [59]. [59].…”

“…Wells [68], Robson and his co-workers have generated over the last 15 years several coordination networks by combining 4- 2 ] n $2nMeOH [70]. Similarly, a coordination network with interlocking lattices and double helices involving bimetallic Rh 2 (DAniF) 2 (DAniF ¼ N,N 0 -di-p-anisylformamidinate) building blocks and 4-tpt has been described by Cotton and Murillo [71].…”

“…Many polypyridyl derivatives are commercially available and many others are straightforward to synthesise, which undeniably make them very popular in coordination chemistry. Among these polypyridyl ligands, we have been particularly interested in 2,4,6-tri(pyridyl)-1,3,5-triazine derivatives [2].…”