Dario Braga, Paul J. Dyson, Fabrizia Grepioni, Brian F. G. Johnson, Caroline M. Martin, Laura Scaccianoce and Alexander Steiner
The reaction of [Ru3(CO)12] with cycloheptatriene affords [Ru4(CO)7(µ-C7H7)2 ] an example of a new class of sandwich cluster which is characterised in the solid-state by single-crystal X-ray diffraction and shown to contain an unusual arrangement of two parallel edge-bridging organic rings.