Cyclohexyl isocyanide metal complexes

Some infrared data on these catalytic systems also support the intermediate complex formation (123). For a heterogeneous system of Cu metal and cyclohexyl isocyanide one observes, in solution, a vcn absorption at 2180 cm , compared to 2140 cm for the free isocyanide. Absorptions at 2181 and 2192 cm for the systems with CujO and CuCl, respectively, are measured. The solutions in each case have catalytic activity. The suggestion is made that either a copper(O) complex (from Cu metal) or copper(I) isocyanide complex (from CU2O or CuCl) is the catalytic species present. 

Aumann and Fischer (7), as part of a larger project on carbene-metal complexes, have investigated the reaction of Cr(CO)5C(OCHj)CH3 and cyclohexyl isocyanide. They describe an initial 1 1 adduct of these reagents, to which they ascribe structure (XX) it is interesting to note that neither... 

The PMRs of several triscyclopentadienyl-lanthanide metal complexes of cyclohexyl isocyanide (C5H5)3MCNCgH, (M = Pr, Nd, Ho, Tm, Yb) are reported 159, 160). 

Carbon-transition metal bonds can also be formed by cocondensing transition-metal atoms with isonitriles. Thus, using Ni and Fe with t-butyl isocyanide, methyl isocyanide, cyclohexyl isocyanide and vinyl isocyanide the NiL4 and FeL, complexes are formed. Palladium cocondensed with isonitriles yields PdLj polymeric structures with terminal and bridged isonitrile ligands ... 

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