Synthesis and characterisation of monocyclopentadienyl dithiolato complexes of niobium and tantalum; crystal structures of [Nb2(μ-O)(μ-η2∶η2-S2C2H4)(η5-C5H4Me)2Cl4] and [Nb2(μ-η1∶η2-S2C2H4)2(η5-C5H4Me)2O(S2C2H4)] †

Reactions of α,ω-dithiolate ligands with bis(cyclopentadienyl)molybdenum dichloride; crystal structures of Mo(η-C5H5)2{S(CH2)nS)} (n=2, 3) and a layered hydrate, Mo(η-C5H5)2(SCH2CH2O)·4.5H2O

“…In recent years we have been studying cyclopentadienyl derivatives of the early transition metals with dithiolate ligands, including complexes of titanium [23], niobium [24,25] and tantalum [24]. a,x-Dithiolates form dithiometallacycles with interesting ring conformations and solid-state structures; rings containing additional thioether or ether linkages have potential for further coordination either to the existing metal [25] or, as a macrocyclic ligand, to an added metal centre.…”