# Organometallic chemistry!!!! 3. The 'HNMR spectrum of a solution of CH,Mn(CO)s in THF-d consists of a...

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Organometallic chemistry!!!!

3. The 'HNMR spectrum of a solution of CH,Mn(CO)s in THF-d consists of a singlet at -0.10. When the solution of CH3Mn(CO)s is mixed with an equimolar quantity of NalMn(COS], the new solution possesses IH NMR signals at -0.10 and at 2.81. The relative intensities of the two singlets change upon dilution; the peak at -0.10 growing larger at the expense of the lower-field peak as more solvent is added to the mixture. The infrared spectrum of the mixture shows a stretching absorption at 1560 cm in addition to complex absorptions at higher frequencies in the carbonyl regions. Explain these observations.

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