Abstract: | [7,7-(PMe2Ph)2-9-(η6-isoPrC6H4Me)-7,9-PtRuB9H11] has a formal closo Wadian cluster-electron count, but a nido geometry, whereas [1-(η6-isoPrC6H4Me)-4,4-(PMe2Ph)2-1-4-RuPtB9H9], which does have a closo geometry, has a formal sub-closo cluster electron count; both compounds are formed in the reaction between [6-(η6-isoPrC6H4Me)-nido-6 RuB9H13], KH and [PtCl2(PMe2Ph)2]. |