Synthesis and structural characterisation of tetraruthenium µ4-nitrene clusters containing tolylacetylene (HC2Tol). Molecular structures of [Ru4(CO)9(µ-CO)2(µ4-NH)(µ4-η2-HC2Tol)] and [Ru4(CO)9(µ-CO)2{µ4-NC(O)OMe}(µ4-η2-HC2Tol)]

Abstract

Two structurally characterized tetraruthenium carbonyl clusters, [Ru₄(CO)₉(µ-CO)₂(µ₄-NH)(µ₄-η²-HC₂Tol)] 1 and [Ru₄(CO)₉(µ-CO)₂{µ₄-NC(O)OMe}(µ₄-η²-HC₂Tol)] 2, have been isolated from the reaction between [Ru₃(CO)₉(µ₃-CO)(µ₃-NOMe)] and tolylacetylene (HC₂Tol) in refluxing n-octane.