Synthesis and characterization of bridged and chelated diphosphine coordinated transition metal chalcogenide clusters, [(CO)18Fe6(μ3-Te)4{μ-PPh2(CH2)2PPh2}] and [(CO)nFe2(μ3-Y)2M{PPh2-R-PPh2}], [Y = Se, Te; M = Pd, Fe; n = 6, 8; R = {(η5-C5H4)

► Chemistry of transition metal clusters containing main group atoms. ► Synthesis and characterization of diphosphine bridged metal clusters. ► Transition metal chalcogenide clusters containing ferrocenyl species.