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Questions and Answers
What type of intermediate can undergo concerted reductive elimination of ethane if the I− concentration is low?
What type of intermediate can undergo concerted reductive elimination of ethane if the I− concentration is low?
The reactive five-coordinate intermediate
What is the shape of the intermediate formed after ligand dissociation from M(R)(X)L2?
What is the shape of the intermediate formed after ligand dissociation from M(R)(X)L2?
Three-coordinate M(R)(X)L
What is required for reductive elimination to occur in trans-M(R)(X)L2 complexes?
What is required for reductive elimination to occur in trans-M(R)(X)L2 complexes?
Initial trans to cis isomerization to bring R and H close together
What type of complexes show a variety of RE mechanisms?
What type of complexes show a variety of RE mechanisms?
What type of bonds can be formed through reductive elimination in octahedral d6 species?
What type of bonds can be formed through reductive elimination in octahedral d6 species?
What is the reverse of the mechanism for reductive elimination in octahedral d6 species?
What is the reverse of the mechanism for reductive elimination in octahedral d6 species?
What type of pathways exist for the reductive elimination of Ar−N{tolyl}2 in trans-[PdAr(N{tolyl}2)(PPh3)2]?
What type of pathways exist for the reductive elimination of Ar−N{tolyl}2 in trans-[PdAr(N{tolyl}2)(PPh3)2]?
Who has analyzed the kinetics for reductive elimination in certain complexes?
Who has analyzed the kinetics for reductive elimination in certain complexes?
What is the typical order of the reactions shown in Equation 6.7?
What is the typical order of the reactions shown in Equation 6.7?
What is the approximate entropy of activation (ΔS‡) for the reactions in Equation 6.7?
What is the approximate entropy of activation (ΔS‡) for the reactions in Equation 6.7?
How do electron-releasing ligands affect the reactions in Equation 6.7?
How do electron-releasing ligands affect the reactions in Equation 6.7?
What is the orientation of the C–H bond as it approaches the metal?
What is the orientation of the C–H bond as it approaches the metal?
What is the consequence of the OA mechanism on the stereochemistry at carbon?
What is the consequence of the OA mechanism on the stereochemistry at carbon?
Why do H–H and hydrocarbon C–H bonds readily oxidatively add to metals?
Why do H–H and hydrocarbon C–H bonds readily oxidatively add to metals?
What drives the reaction in Equation 6.8?
What drives the reaction in Equation 6.8?
What favors the OA of the C–C bond in Equation 6.9?
What favors the OA of the C–C bond in Equation 6.9?
What is the effect of wide ligand bite angles on the reaction mechanism in chelates?
What is the effect of wide ligand bite angles on the reaction mechanism in chelates?
What determines whether OA or RE will dominate in a reaction?
What determines whether OA or RE will dominate in a reaction?
What is the typical outcome of the reaction in Eq. 6.22 when X = alkyl or aryl and Y = H?
What is the typical outcome of the reaction in Eq. 6.22 when X = alkyl or aryl and Y = H?
What is the configurations of carbon center in radical binuclear HHal?
What is the configurations of carbon center in radical binuclear HHal?
What is the role of polar solvents in OA reactions?
What is the role of polar solvents in OA reactions?
What is the characteristic feature of reductive elimination (RE) products?
What is the characteristic feature of reductive elimination (RE) products?
What is the notable feature of reactions involving H in OA?
What is the notable feature of reactions involving H in OA?
What is the possible intermediate in some OA reactions?
What is the possible intermediate in some OA reactions?
What is the common characteristic of first row metals that prefer binuclear oxidative addition?
What is the common characteristic of first row metals that prefer binuclear oxidative addition?
What is the significance of Eq. 6.24 and Eq. 6.25 in the context of binuclear reductive elimination?
What is the significance of Eq. 6.24 and Eq. 6.25 in the context of binuclear reductive elimination?
Why do reductive eliminations of C–F, –O, and –N have a higher kinetic barrier than those of C–H or C–C?
Why do reductive eliminations of C–F, –O, and –N have a higher kinetic barrier than those of C–H or C–C?
What is the significance of the Buchwald-Hartwig coupling procedure in the context of reductive elimination?
What is the significance of the Buchwald-Hartwig coupling procedure in the context of reductive elimination?
What is the alternate route that apparent OA/RE sequences can take?
What is the alternate route that apparent OA/RE sequences can take?
Why is OA forbidden in d0 early metal complexes?
Why is OA forbidden in d0 early metal complexes?
What is the reaction equation that demonstrates the σ-bond metathesis mechanism?
What is the reaction equation that demonstrates the σ-bond metathesis mechanism?
What is the significance of path b or c in Fig. 6.3?
What is the significance of path b or c in Fig. 6.3?
What is the primary difference between the reactivity of complex A and complex B with respect to MeOSO2Me and i-PrI?
What is the primary difference between the reactivity of complex A and complex B with respect to MeOSO2Me and i-PrI?
Which complex would be more likely to react with MeI and why?
Which complex would be more likely to react with MeI and why?
What further tests could be applied to confirm the mechanism of oxidative addition for complex A and complex B?
What further tests could be applied to confirm the mechanism of oxidative addition for complex A and complex B?
What is the significance of the difference in reactivity between complex A and complex B with respect to MeOSO2Me and i-PrI?
What is the significance of the difference in reactivity between complex A and complex B with respect to MeOSO2Me and i-PrI?
How do the reactivities of complex A and complex B with MeOSO2Me and i-PrI relate to the general principles of oxidative addition?
How do the reactivities of complex A and complex B with MeOSO2Me and i-PrI relate to the general principles of oxidative addition?
What would be the expected outcome of reacting complex A with i-PrI, and why?
What would be the expected outcome of reacting complex A with i-PrI, and why?
What is the significance of the reactivity of complex B with i-PrI, but not with MeOSO2Me?
What is the significance of the reactivity of complex B with i-PrI, but not with MeOSO2Me?
How do the mechanisms of oxidative addition for complex A and complex B relate to the general principles of organometallic chemistry?
How do the mechanisms of oxidative addition for complex A and complex B relate to the general principles of organometallic chemistry?
What would be the expected outcome of reacting complex B with MeOSO2Me, and why?
What would be the expected outcome of reacting complex B with MeOSO2Me, and why?
What is the importance of understanding the mechanisms of oxidative addition for complex A and complex B?
What is the importance of understanding the mechanisms of oxidative addition for complex A and complex B?