Re–Re bond breaking of (μ-H)3Re3(CO)11(NCMe) upon reaction with PPh2(o-C6H4)(CH2NMeCH)C60 to generates monorhenium and dirhenium phosphino–fullerene complexes

Abstract

Reaction of PPh₂(o-C₆H₄)(CH₂NMeCH)C₆₀ (1) and (μ-H)₃Re₃(CO)₁₁(NCMe) in refluxing chlorobenzene affords the monorhenium complex HRe(CO)₃(η³-PPh₂(o-C₆H₄)(CH₂NMeCH)C₆₀) (2), and the dirhenium complexes (μ-H)Re₂(CO)₇(μ,η³-PPh(o-C₆H₄)₂(CH₂NMeCH)C₆₀) (3) and (μ-H)Re₂(CO)₅(μ-SSOH)(μ,η⁵-PPh₂(o-C₆H₄)(CH₂NMeCH)C₆₀) (4). The structures of 2–4 have been determined by an X-ray diffraction study. The oxatrisulfanyl (–SSOH) ligand of 4 likely arises from decomposition of CS₂ on silica gel during the purification processes.