Preparation.2C structure.2C reactions Pentamethylcyclopentadienyl rhodium dichloride dimer

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the compound more conveniently prepared reaction of rhodium trichloride trihydrate , pentamethylcyclopentadiene in hot methanol, product precipitates:



2 cp*h   +   2 rhcl3(h2o)3  






→



ch

3





oh


 / Δ







{\displaystyle {\ce {->[{\ce {ch3oh}}{\text{ / Δ}}]}}}

  [cp*rhcl2]2   +   2 hcl   +   6 h2o

the rh-μ-cl bonds labile , cleave en route variety of adducts of general formula cp*rhcl2l. treatment silver ions in polar solvents causes precipitation of silver(i) chloride, leaving solution containing dications of form [cp*rhl3] (l = h2o, mecn).


the chemistry similar of iridium analog, pentamethylcyclopentadienyl iridium dichloride dimer.








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