Synthesis and structural characterization of a diruthenium pentalene complex, [Cp*Ru{(Cp*Ru)(2)B6H14}(Cp*Ru)]

Benson Joseph (1) , Subrat Kumar Barik (1) , Soumya Kumar Sinha (1) , Thierry Roisnel (2) , Sundargopal Ghosh (1)

1 IIT Madras - Indian Institute of Technology Madras
2 ISCR - Institut des Sciences Chimiques de Rennes

Treatment of nido-[1,2-(Cp*Ru)(-H)BH], 1 with five equivalents of Te powder led to the isolation of diruthenium pentalene analogue , 2 and a metal indenyl complex ], 3. The ] fragment in 2 may be considered as a true metal-boron analogue of --pentalene ligand ( and ] fragment in 3 is an analogue of -indenyl ligand. The solid-state X-ray structures were unambiguously determined by crystallographic analysis of compounds 2 and 3. Further, the density functional theory (DFT) calculations were performed to investigate the bonding and the electronic properties of 2a (Cp analogue of 2). The frontier molecular orbital analysis of both 2a and 2b (Cp analogue of reveals a lower HOMO-LUMO gap indicating less thermodynamic stability. SYNOPSIS Treatment of nido-[1,2-(CpRu)-H)BH] with Te powder led to the isolation of diruthenium pentalene analogue and a metal indenyl complex ].

Keywords: Ruthenium; boron; pentalene; indenyl; metallaborane

Domains: Chemical Sciences

Benson Joseph, Subrat Kumar Barik, Soumya Kumar Sinha, Thierry Roisnel, Sundargopal Ghosh. Synthesis and structural characterization of a diruthenium pentalene complex, [Cp*Ru{(Cp*Ru)(2)B6H14}(Cp*Ru)]. Journal of Chemical Sciences, 2018, 130 (7), pp.89. ⟨10.1007/s12039-018-1479-3⟩. ⟨hal-01861411⟩