Reactions of the borole complex CpRh(eta(5)-C4H4BPh) with monocationic organometallic fragmentsстатья
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Аннотация:The B-phenylborole complex CpRh(η5-C4H4BPh) (1) reacts with [ML]+ fragments to give the arene-type cationic complexes [CpRh(μ-η5:η6-C4H4BPh)ML]+ (ML = RuCp∗ (3), Co(C4Me4) (4), Rh(cod) (5), and Ir(cod) (6)). Cation 4 undergoes a reversible rearrangement into the triple-decker complex [CpRh(μ-η5:η5-C4H4BPh)Co(C4Me4)]+ (7) under visible light irradiation in CH2Cl2 solution. DFT calculations revealed greater stability of arene-type complexes over triple-decker isomers. The structure of [3]BF4 was determined by X-ray diffraction.