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- W1503073996 abstract "Bis(borinato)cobalt complexes Co(C5H5BR2 (R = CH3, C6H5) can be reduced by sodium amalgam to give Na[Co(C5H5BR)2] compounds containing sandwich-type 20-electron anions. The phenyl derivative has an effective magnetic moment μeff 2.97 ± 0.1 BM in THF solution. Metathesis with [P(C6H5)4]Br affords the stable crystalline salt [P(C6H5)4][Co(C5H5BC6H5)2] having μeff 2.85 ± 0.05 BM. Reactions with electrophiles are described. Thermal decomposition of the anions in presence of suitable ligands L gives complexes of the type CoL2(C5H5BR) such as Co(cod)(C5H5BC6H5)(cod = 1,5-cyclooctadiene) and Co(nbd)(C5H5BC6H5) (nbd = norbornadiene). Bis(borinato)cobalt-Komplexe Co(C5H5BR)2 (R = CH3, C6H5) können mit Natriumamalgam zu den Verbindungen Na[Co(C5H5BR)2] reduziert werden welche 20-Elektronen-Anionen vom Sandwichtyp enthalthen. Das Phenyl-Derivat hat in THF-Lösung ein effektives magnetisches Moment μeff 2.97 ± 0.1 BM. Metathese mit [P(C6H5)4]Br liefert das stabile kristalline Salz [P(C6H5)4][Co(C5H5BC6H5)2] mit μeff 2.85 ± 0.05 BM. Reaktionen mit Elektrophilen werden beschrieben. Thermische Zersetzung der Anionen in Gegenwart geeigneter Liganden L ergibt Komplexe des Typs CoL2(C5H5BR) wie z.B. Co(COD)(C5H5BC6H5) (COD = 1,5-Cycloocatadien) und (Co(NBD)(C5H5BC6H5) (NBD = Norbornadien)." @default.
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- W1503073996 date "1978-10-01" @default.
- W1503073996 modified "2023-10-17" @default.
- W1503073996 title "Derivative des borabenzols" @default.
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- W1503073996 doi "https://doi.org/10.1016/s0022-328x(00)91193-8" @default.
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