2) Identify the products of the following reactions, and give the electron count and oxidation state...
2) Identify the products of the following reactions, and give the electron count and oxidation state of the metal in the reactant and product: a) PH2 C Rh— co + CH, Oxidative Addition HzÇ PPh: 1,1-insertion PhzP— Re--CO- PPh PhP Co PPh3 B-elimination oś —CH2 Reductive elimination CH3 Php
2) Identify the products of the following reactions, and give the electron count and oxidation state of the metal in the reactant and product: PHE C R - co + CHE Oxidative Addition PHY HEÇ PPhg Php-Reco 1,1-insertion PP, PhyP Co PPhg CIOs CH2 B-elimination Reductive elimination CH3 PnP
UESTION 1 Consider the following five transition metal complexes A - E: PPhz CO CO Cl В PPh3 CO Cl/ CH CH CH 2 Ph2P 2 143 CO CO CH a) Assign electron count and formal oxidation states to each of the five complexes b) Which of the complexes (if any) are likely to undergo the following types of reaction? In each case, give the main product expected (i)Oxidative addition (ii)1,2 insertion ("alkene" insertion) (iii) Reductive elimination
Please give a detailed explanation.
18.15 The Wilkinson catalyst chlorotris(triphenylphosphine)rhodium(I), CIRh(PPha), brings about the catalytic hydrogenation of an alkene in homogeneous solution: R R CIRh(PPh3)3 C=C + H - RCH CHR (18.41) HH (a) Using the following mechanistic steps as your guide, draw structures of the transition-metal complexes involved in each step. Give the electron count and the metal oxidation state at each step. 1. oxidative addition of H, to the catalyst 2. ligand substitution of one PPhz by the...
4. Determine the metal oxidation state, d electron count, and total electron count for the following compounds: a. Cp2TiCl2 b. [Cp2Co]+ c. [Mo(N2)2(dmpe)2] d. [ReO2(CO)4]+ ZEZ Ph2 Ph2 L PINTIMO Mome * Re nel ZEZ- Ph = phenyl
7. Write balance chemical
equations that illustrate the following types of reactions. For
reactants choose only from the following lists of reactants. Please
limit yourselves to only reactants in the following lists. Use each
reactant in only one of the reactions you write. You must identify
the appropriate products. List of reactants: Ir(CO)Cl(PPh3)2, C2H6,
CN-, [NiBr4]2-, CH3I, [Cr(H2O)6]2+, CH3CH2Re(CO)5, [Fe(CN)6]3-,
PPh3, [PtBr6]2-, [(C2H4)PtCl3]-,[Co(NH3)5N3]2+, a) Migratory
Insertion.b) Ligand Substitution. c) Oxidative Addition. d)
Inner-Sphere Electron Transfer.
7. Write balance chemical equations...
4. Classify each of the following reactions as: Acid/ Base, Addition, Elimination, Reduction, Oxidation, Condensation, or Hydrolysis. (7 points each) a. CH3CH2OH [O] + CH3-CH (H2) [O] P → CH-E-OH (+0) (conc. Acid and heat) b. CH3-CH2-CH2-OH CH3-CH=CH2 + H2O (Pt cat) c. CH3-CH=CH2 + H2 → CH3CH2CH3
For each of the following complexes draw the structure, determine the electron count at the metal centre (use the neutral ligand method) and give the oxidation state of the metal (0) [Tan-CsHs)-(CH3)3] (11) [Ni(n-C3Hs)(PPh3>(CO)2] (111) [Mn(n-CHS)(CO)3]* [Ru(PMe3)2(CHPh)C12] (v) [Co(H2-COXCO);}2 Assume a direct Co-Co bond in (v) Explain, using suitable diagrams, the Berry pseudorotation mechanism
Question 3 [2 Marks] A. Name the following reactions as reduction, oxidation, substitution, elimination reactions. (1 Mark) CH Na/NH, i) Học = | CH - NaNH » H=": Н3С. H3C H2SO4 H3COH - 70°C C H3C CH2 + H2O H3C CH3 heat CH3 CH3 -C-CH3 + HCI- OH CH3-C-CH3 + H2O CH3 CH2 CH3 + 502 — >3CO2 + 4H20
2. For each of the following compounds, 1) write the formal oxidation state of the transition metal and 2) the corresponding number of d electrons. 3) State whether or not each one is likely to be stable enough to be characterized. (a) [Re(CO)5] (b) [Cr(η6 -C6H6)2] (c) [Mo(CO)3(PPh3)3] (d) [Fe(η2 -C2H4)(CO)4] (e) [Zr(η5 -C5H5)Cl(OH)] (f) [Co(η5 -C5H5)2] 3. Identify the first-row transition metal (M) that follows the 18-electron rule for each of the following compounds (show how you arrived at...