What are reversible and irreversible electrochemical processes? How do they appear in a cyclic voltammogram? Indicate on the CV whether the processes observed are reversible or irreversible.
What are reversible and irreversible electrochemical processes? How do they appear in a cyclic voltammogram? Indicate on the CV whether the processes observed are reversible or irreversible.
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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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![The following pertains to the study of an
iron complex with structure as shown
below. A cyclic voltammogram (CV) of
the complex is
shown at the right.
The complex
designated as 1 is
the 2+ ion, 2 is the 1+
ion, and 3 is the
23
40x10
Scan Rate (mVis)
10
25
50
-72T1
-20
100
200
Ar-
1, 88%
Ar = 3,5-Me,Ph
20 -
2 €3
0.6
-0.8
-1.0
1.2
1.4
-1.6
-1.8
-2.0
neutral species. [Billups, J.; Fokakis, Z.;
Creutz, S. Octahedral Iron Complexes of Pyrazine(diimine) Pincers: Ligand Electronic Effects
and Protonation. Inorg. Chem. 2020, 59, 15228-15239].
Potential (V vs. Fc/Fc+)
What are reversible and irreversible electrochemical processes? How do they appear in a
cyclic voltammogram? Indicate on the CV whether the processes observed are reversible
or irreversible.
Current (A)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fff016fc4-12f6-43e3-9033-f3481f70585f%2Ffd6aab30-4905-4c82-a0d8-db2eef862b69%2F4qm2aao_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The following pertains to the study of an
iron complex with structure as shown
below. A cyclic voltammogram (CV) of
the complex is
shown at the right.
The complex
designated as 1 is
the 2+ ion, 2 is the 1+
ion, and 3 is the
23
40x10
Scan Rate (mVis)
10
25
50
-72T1
-20
100
200
Ar-
1, 88%
Ar = 3,5-Me,Ph
20 -
2 €3
0.6
-0.8
-1.0
1.2
1.4
-1.6
-1.8
-2.0
neutral species. [Billups, J.; Fokakis, Z.;
Creutz, S. Octahedral Iron Complexes of Pyrazine(diimine) Pincers: Ligand Electronic Effects
and Protonation. Inorg. Chem. 2020, 59, 15228-15239].
Potential (V vs. Fc/Fc+)
What are reversible and irreversible electrochemical processes? How do they appear in a
cyclic voltammogram? Indicate on the CV whether the processes observed are reversible
or irreversible.
Current (A)
![d. Using the reduction potentials evident in the CV above, calculate the K. for the series of
complex ions [(+-OM²P²DI),Fe]* and then compare it to the K. value for a similar series of
complexes of formula [(+-OM PDI)2Fe]a+ which has a AE=0.35V. (AE=RT InK/nF)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fff016fc4-12f6-43e3-9033-f3481f70585f%2Ffd6aab30-4905-4c82-a0d8-db2eef862b69%2Fkf2s1zk_processed.jpeg&w=3840&q=75)
Transcribed Image Text:d. Using the reduction potentials evident in the CV above, calculate the K. for the series of
complex ions [(+-OM²P²DI),Fe]* and then compare it to the K. value for a similar series of
complexes of formula [(+-OM PDI)2Fe]a+ which has a AE=0.35V. (AE=RT InK/nF)
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