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3. Square planar Ir complexes have been widely studied in organometallic catalysis. Provided the following isomers answer the following questions: CN CN ***...... Cl......... Ir Ir ........ CI 'CN NC CI Isomer A Isomer B а. What is the point group of each isomer? Isomer A: Isomer B:

3. Square planar Ir complexes have been widely studied in organometallic catalysis. Provided the following isomers answer the following questions: CN CN ***...... Cl......... Ir Ir ........ CI 'CN NC CI Isomer A Isomer B а. What is the point group of each isomer? Isomer A: Isomer B:

Chemistry
Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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### Study of Square Planar Ir Complexes in Organometallic Catalysis In the field of organometallic catalysis, square planar iridium (Ir) complexes have been extensively studied. The following discussion focuses on two isomers of such complexes: #### Diagram Description - **Isomer A**: This isomer consists of an Iridium (Ir) center bonded to two chloride (Cl) ligands and two cyanide (CN) groups arranged in a neutral square planar configuration. - **Isomer B**: Similar to Isomer A, this structure features an Ir center, but with a different arrangement of the CN and Cl groups. #### Questions for Consideration a. **Point Group Determination** - Identify the point group for each isomer. - Isomer A: __________ - Isomer B: __________ b. **CN Stretching in Isomer A** - Determine the reducible and irreducible representations for the CN stretching vibrations in Isomer A. c. **CN Stretching in Isomer B** - Similarly, analyze the reducible and irreducible representations for the CN stretching vibrations in Isomer B. d. **Distinction Using IR Spectroscopy** - Based on the analyses from sections a–c, discuss if IR spectroscopy can distinguish between these two isomers. This exercise aims to enhance understanding of molecular symmetry and its implications for spectroscopic techniques in chemical research.
Transcribed Image Text:### Study of Square Planar Ir Complexes in Organometallic Catalysis In the field of organometallic catalysis, square planar iridium (Ir) complexes have been extensively studied. The following discussion focuses on two isomers of such complexes: #### Diagram Description - **Isomer A**: This isomer consists of an Iridium (Ir) center bonded to two chloride (Cl) ligands and two cyanide (CN) groups arranged in a neutral square planar configuration. - **Isomer B**: Similar to Isomer A, this structure features an Ir center, but with a different arrangement of the CN and Cl groups. #### Questions for Consideration a. **Point Group Determination** - Identify the point group for each isomer. - Isomer A: __________ - Isomer B: __________ b. **CN Stretching in Isomer A** - Determine the reducible and irreducible representations for the CN stretching vibrations in Isomer A. c. **CN Stretching in Isomer B** - Similarly, analyze the reducible and irreducible representations for the CN stretching vibrations in Isomer B. d. **Distinction Using IR Spectroscopy** - Based on the analyses from sections a–c, discuss if IR spectroscopy can distinguish between these two isomers. This exercise aims to enhance understanding of molecular symmetry and its implications for spectroscopic techniques in chemical research.
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