- For Each Of The 7 Types Of Reactions Addition Dissociation Oxidative Addition Reductive Elimination 1 2 Migratory I 1 (102.68 KiB) Viewed 21 times
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For each of the 7 types of reactions (addition, dissociation, oxidative addition, reductive elimination, 1,2-migratory insertion, B-elimination, and carbonyl insertion), assess how the following properties change (if at all) in order to answer questions a-i below: Coordination number Oxidation state of the metal Total electron count around the metal 1. Addition: a. olefin CR2 L M + R2C=CR2 L M -11 CR2 b. CO LM + CO L M- CO c. phosphine L M + PR3 L M- PR3 2. Dissociation a. CO L M СО LM + CO b. phosphine L M- PR3 LM + PR3
Oxidative Addition a. RH (H2) -R (H) L,M + R-H (H—H) → L M H - The addition product may be in cis or trans configuration, based on the mechanism involved (concerted or stepwise). We will not cover the mechanism. b. RX (HX) -R (H) L M + R-X (H—X) - LM X - The addition product may be in cis or trans configuration, based on the mechanism involved (concerted or stepwise). We will not cover the mechanism. Reductive Elimination a. RH (H2) -R (H) L.M H LM + R-H (H-H) - The ligands (-R, -H) may be in cis or trans configuration, based on the mechanism involved (concerted or stepwise). We will not cover the mechanism. b. RX (HX) -R (H) LM X L M + R-X ( HX) - The ligands (-R, -X) may be in cis or trans configuration, based on the mechanism involved (concerted or stepwise). We will not cover the mechanism.
1,2-Migratory Insertion 1CR2 R R LM 2CR2 LM 11 C2—H H R R - The ligands (H and C2R4) must be in cis configuration. B-Elimination R R CR2 IL CR2 LEM 0- C-H LM H R R Carbonyl Insertion CR3 L M < L M C CR3 CO - The ligands (CO and -CR3) must be in cis configuration.