Homework Help is Here – Start Your Trial Now!
Science
Chemistry
The molecule 2,2'-bipyridine (1) forms a complex with the Ru²* ion. Ruthenium(II) tris-(2,2'-bipyridyl), Ru(bipy)* (2), has a strong metal-to-ligand charge transfer (MLCT) transition (Section 14.2) at 450 nm. The quenching of the *Ru(bipy);* excited state by Fe(H,O);* in acidic solution was monitored by meas- uring emission lifetimes at 600 nm. Determine the quenching rate constant for this reaction from the following data: N. N 12,2-Bipyridine (bipy 그2+ (Fe(H,O);"]/(10-4 mol dm³) t/(10-7 s) ㅇ 1.6 4.7 9.4 6 4.05 3.37 2.96 2.17

The molecule 2,2'-bipyridine (1) forms a complex with the Ru²* ion. Ruthenium(II) tris-(2,2'-bipyridyl), Ru(bipy)* (2), has a strong metal-to-ligand charge transfer (MLCT) transition (Section 14.2) at 450 nm. The quenching of the *Ru(bipy);* excited state by Fe(H,O);* in acidic solution was monitored by meas- uring emission lifetimes at 600 nm. Determine the quenching rate constant for this reaction from the following data: N. N 12,2-Bipyridine (bipy 그2+ (Fe(H,O);"]/(10-4 mol dm³) t/(10-7 s) ㅇ 1.6 4.7 9.4 6 4.05 3.37 2.96 2.17

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
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question

Question is in image. 

### Quenching of Ru(bipy)32+ Excited State by Fe(H2O)63+ in Acidic Solution #### Overview The molecule 2,2'-bipyridine (1) forms a complex with the Ru²⁺ ion. The complex, Ruthenium(II) tris-(2,2'-bipyridyl), designated as Ru(bipy)₃²⁺ (2), exhibits a strong metal-to-ligand charge transfer (MLCT) transition at 450 nm. The quenching of the *Ru(bipy)₃²⁺ excited state by Fe(H₂O)₆³⁺ in an acidic solution was monitored through emission lifetimes measured at 600 nm. The objective is to determine the quenching rate constant for this reaction based on the provided data. #### Chemical Structures - **2,2'-Bipyridine (bipy):** ![2,2'-Bipyridine](data:image/png;base64,...) - **Ru(bipy)₃²⁺:** ![Ru(bipy)₃²⁺](data:image/png;base64,...) #### Data The table below displays the measured emission lifetimes as a function of the concentration of Fe(H₂O)₆³⁺: | [Fe(H₂O)₆³⁺] (x10⁻⁴ mol dm⁻³) | 0 | 1.6 | 4.7 | 7 | 9.4 | |---------------------------------|-----|-----|-----|-----|-----| | t (x10⁻⁷ s) | 6 | 4.05| 3.37| 2.96| 2.17| #### Explanation of Graphs/Diagrams - **Chemical structures:** The chemical structure of 2,2'-bipyridine is depicted, showing two pyridine rings connected by a carbon-carbon bond. The structure of Ru(bipy)₃²⁺ is also shown, illustrating the tris-complex formed between ruthenium (II) and three 2,2'-bipyridine ligands. The provided data should be used to calculate the quenching rate constant, which represents how efficiently the Fe(H₂O)₆³⁺ molecule quenches the excited state of Ru(bipy
Transcribed Image Text:### Quenching of Ru(bipy)32+ Excited State by Fe(H2O)63+ in Acidic Solution #### Overview The molecule 2,2'-bipyridine (1) forms a complex with the Ru²⁺ ion. The complex, Ruthenium(II) tris-(2,2'-bipyridyl), designated as Ru(bipy)₃²⁺ (2), exhibits a strong metal-to-ligand charge transfer (MLCT) transition at 450 nm. The quenching of the *Ru(bipy)₃²⁺ excited state by Fe(H₂O)₆³⁺ in an acidic solution was monitored through emission lifetimes measured at 600 nm. The objective is to determine the quenching rate constant for this reaction based on the provided data. #### Chemical Structures - **2,2'-Bipyridine (bipy):** ![2,2'-Bipyridine](data:image/png;base64,...) - **Ru(bipy)₃²⁺:** ![Ru(bipy)₃²⁺](data:image/png;base64,...) #### Data The table below displays the measured emission lifetimes as a function of the concentration of Fe(H₂O)₆³⁺: | [Fe(H₂O)₆³⁺] (x10⁻⁴ mol dm⁻³) | 0 | 1.6 | 4.7 | 7 | 9.4 | |---------------------------------|-----|-----|-----|-----|-----| | t (x10⁻⁷ s) | 6 | 4.05| 3.37| 2.96| 2.17| #### Explanation of Graphs/Diagrams - **Chemical structures:** The chemical structure of 2,2'-bipyridine is depicted, showing two pyridine rings connected by a carbon-carbon bond. The structure of Ru(bipy)₃²⁺ is also shown, illustrating the tris-complex formed between ruthenium (II) and three 2,2'-bipyridine ligands. The provided data should be used to calculate the quenching rate constant, which represents how efficiently the Fe(H₂O)₆³⁺ molecule quenches the excited state of Ru(bipy
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
UV and Visible Spectroscopy
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS