Heterolytic bond activation at gold: evidence for gold(iii) H-B, H-Si complexes, H-H and H-C cleavage.

ABSTRACT: The coordinatively unsaturated gold(iii) chelate complex [(C^N-CH)Au(C₆F₅)]⁺ (1 ⁺) reacts with main group hydrides H-BPin and H-SiEt₃ in dichloromethane solution at -70 °C to form the corresponding σ-complexes, which were spectroscopically characterized (C^N-CH = 2-(C₆H₃Bu ^t )-6-(C₆H₄Bu ^t )pyridine anion; Pin = OCMe₂CMe₂O). In the presence of an external base such as diethyl ether, heterolytic cleavage of the silane H-Si bond leads to the gold hydrides [{(C^N-CH)AuC₆F₅}₂(μ-H)]⁺ (2 ⁺) and (C^N-CH)AuH(C₆F₅) (5), together with spectroscopical

SUBMITTER: Rocchigiani L 

PROVIDER: S-EPMC6425858 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature