Format:
1 Online-Ressource (8 Seiten)
Content:
S−F-bond activation of sulfur tetrafluoride at [Rh(Cl)(tBuxanPOP)] (1; tBuxanPOP=9,9-dimethyl-4,5-bis-(di-tert-butylphosphino)-xanthene) led to the formation of the cationic complex [Rh(F)(Cl)(SF2)(tBuxanPOP)][SF5] (2 a) together with trans-[Rh(Cl)(F)2(tBuxanPOP)] (3) and cis-[Rh(Cl)2(F)(tBuxanPOP)] (4) which both could also be obtained by the reaction of SF5Cl with 1. In contrast to that, the conversion of SF4 at the methyl complex [Rh(Me)(tBuxanPOP)] (5) gave the isolable and room-temperature stable cationic λ4-trifluorosulfanyl complex [Rh(Me)(SF3)(tBuxanPOP)][SF5] (6). Treatment of 6 with the Lewis acids BF3 or AsF5 produced the dicationic difluorosulfanyl complex [Rh(Me)(SF2)(tBuxanPOP)][BF4]2 (8 a) or [Rh(Me)(SF2)(tBuxanPOP)][AsF6]2 (8 b), respectively. Refluorination of 8 a was possible with the use of dimethylamine giving [Rh(Me)(SF3)(tBuxanPOP)][BF4] (9). A reaction of 6 with trichloroisocyanuric acid (TClCA) gave the fluorido complex [Rh(F)(Cl)(SF2)(tBuxanPOP)][Cl] (2 b) together with chloromethane and SF5Cl.
Content:
Peer Reviewed
In:
Weinheim : Wiley-VCH, 28,33
Language:
English
DOI:
10.1002/chem.202200626
URN:
urn:nbn:de:kobv:11-110-18452/26885-4
URL:
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