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Question 10 [time = 10 minutes] a) Consider the following reaction: [M(OH₂)6]²+ +L→ [M(L)(OH₂)4]²+ + 2H₂O where Mhigh spin Co(II) or Ni(II) or Mn(II) or Fe(II) and L= a charge neutral bidentate igand. Jse the Irving-Williams series to match the following formation constants with the metal ion. Kr=log 5.7; Kr=log 3.0; Kr-log 7.3; Kr= log 4.0 b) The following stability constants (log K) refer to a single metal ion, 'M', forming complexes with different halides. Use the data below to classify 'M' as a hard, soft or intermediate 'acid' and justify your answer: log K (MF3) = 6.0; log K (MC13) = 1.0; log K (MBrs) = 0.2. Page 11 of 20 CHEM20018 Reactions and Synthesis c) Consider the ligand substitution reaction below where an aqua ligand is exchanged for either L¹, L² or L³. Experiments show that the mechanism of these reactions is Interchange Associative (I). List the ligands in the order of their reactions rates (fastest to slowest). 7²+ 2+ HN HN N H₂ NH₂ +L¹-→ OH₂ NH₂ L1-3 H + H₂O

Question 10 [time = 10 minutes] a) Consider the following reaction: [M(OH₂)6]²+ +L→ [M(L)(OH₂)4]²+ + 2H₂O where Mhigh spin Co(II) or Ni(II) or Mn(II) or Fe(II) and L= a charge neutral bidentate igand. Jse the Irving-Williams series to match the following formation constants with the metal ion. Kr=log 5.7; Kr=log 3.0; Kr-log 7.3; Kr= log 4.0 b) The following stability constants (log K) refer to a single metal ion, 'M', forming complexes with different halides. Use the data below to classify 'M' as a hard, soft or intermediate 'acid' and justify your answer: log K (MF3) = 6.0; log K (MC13) = 1.0; log K (MBrs) = 0.2. Page 11 of 20 CHEM20018 Reactions and Synthesis c) Consider the ligand substitution reaction below where an aqua ligand is exchanged for either L¹, L² or L³. Experiments show that the mechanism of these reactions is Interchange Associative (I). List the ligands in the order of their reactions rates (fastest to slowest). 7²+ 2+ HN HN N H₂ NH₂ +L¹-→ OH₂ NH₂ L1-3 H + H₂O

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Question 10 [time = 10 minutes] a) Consider the following reaction: [M(OH₂)6]2+ +L→ [M(L)(OH₂)4]2+ + 2H₂O where M = high spin Co(II) or Ni(II) or Mn(II) or Fe(II) and La charge neutral bidentate ligand. Use the Irving-Williams series to match the following formation constants with the metal ion. Kr=log 5.7; Kr=log 3.0; Kr=log 7.3; Kr=log 4.0 b) The following stability constants (log K) refer to a single metal ion, 'M', forming complexes with different halides. Use the data below to classify 'M' as a hard, soft or intermediate 'acid' and justify your answer: log K (MF3) = 6.0; log K (MC13) = 1.0; log K (MBr) = 0.2. Page 11 of 20 CHEM20018 Reactions and Synthesis c) Consider the ligand substitution reaction below where an aqua ligand is exchanged for either L¹, L² or L³. Experiments show that the mechanism of these reactions is Interchange Associative (I). List the ligands in the order of their reactions rates (fastest to slowest). 7²+ 2+ HN, HN + H₂O Pt N₂ H NH₂ +L¹.9-> H OH₂ 'N H₂ NH₂ L13 H
Transcribed Image Text:Question 10 [time = 10 minutes] a) Consider the following reaction: [M(OH₂)6]2+ +L→ [M(L)(OH₂)4]2+ + 2H₂O where M = high spin Co(II) or Ni(II) or Mn(II) or Fe(II) and La charge neutral bidentate ligand. Use the Irving-Williams series to match the following formation constants with the metal ion. Kr=log 5.7; Kr=log 3.0; Kr=log 7.3; Kr=log 4.0 b) The following stability constants (log K) refer to a single metal ion, 'M', forming complexes with different halides. Use the data below to classify 'M' as a hard, soft or intermediate 'acid' and justify your answer: log K (MF3) = 6.0; log K (MC13) = 1.0; log K (MBr) = 0.2. Page 11 of 20 CHEM20018 Reactions and Synthesis c) Consider the ligand substitution reaction below where an aqua ligand is exchanged for either L¹, L² or L³. Experiments show that the mechanism of these reactions is Interchange Associative (I). List the ligands in the order of their reactions rates (fastest to slowest). 7²+ 2+ HN, HN + H₂O Pt N₂ H NH₂ +L¹.9-> H OH₂ 'N H₂ NH₂ L13 H
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