D. Braga et al., A TETRANUCLEAR CLUSTER SANDWICHED BETWEEN EDGE-BRIDGING CYCLOHEPTATRIENYL RINGS - THE SYNTHESIS AND CHARACTERIZATION OF [RU4(CO)(7)(MU-C7H7)(2)], Chemical communications, (14), 1997, pp. 1259-1260
The reaction of [Ru-3(CO)(12)] with cycloheptatriene affords [Ru-4(CO)
(7)(mu-C7H7)(2)] an example of a new class of sandwich cluster which i
s characterised in the solid-state by single-crystal X-ray diffraction
and shown to contain an unusual arrangement of two parallel edge-brid
ging organic rings.