By Cleavage of the Quadruple Bond in Mo , ( 0 , Ccf
نویسنده
چکیده
Addition of an excess of t-butyl isocyanide to solid Mo2 (0, CCF3 )4 or MO?_ (0, CMe)4 gives (t-BuNC), Mo(Oz CCF3 )* or (t-BuNC), Mo(Oz CMe), , respectively. The quadruple bond in K4 MO* Cl8 or Cl4 MO, (n-Bus P)4 also can be cleaved by an excess of t-butyl isocyanide to yield (t-BuNC), MoCl, _ The anionic ligands can be exchanged with ammonium hexafluorophosphate in presence of excess t-BuNC to give the known [(t-BuNC), MO] [PFB ] z . t-Butyl isocyanide also cleaves the quadruple metal-metal bond in Re, (0, CMe)4 Cl* to give (t-BuNC)S ReCl.
منابع مشابه
Reaction of Binuclear Carboxylate Complexes of Molybdenum, Rhenium, Ruthenium, and Rhodium with tert-Butyl Isocyanide: Metal-Metal Bond Cleavage vs. Bond Retention
terr-Butyl isocyanide cleaves the quadruple metal-metal bonds in Moz(02CMe),, MoZ(OzCCF3),, or K,MozCls to give the mononuclear, seven-coordinate species MO(?-BUNC)~(O~CM~)~ or [Mo(t-B~Nc)~x] [XI, where X is OZCCF3 or C1. These diamagnetic, 18-electron complexes may be converted into the known binary dication [Mo(t-BuNC),] [PF,], by action of NH4PF6 and excess r-BuNC or into the polyoxoanion co...
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