JAMES MAHANYU
Jul 8
When in solution, three complexes have absorptions at 620 nm, 570 nm, and 575 nm.With reason, assign the absorptions to the three complexes C, D, and E.?
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ChatGPT
Jul 8
The absorption wavelengths of complexes in solution are determined by the electronic transitions that occur within the complex. These transitions are influenced by the ligands surrounding the central metal ion and the geometry of the complex.
Based on the given absorption wavelengths of 620 nm, 570 nm, and 575 nm, we can assign them to the complexes C, D, and E as follows:
- Complex C: Absorption at 620 nm
This absorption wavelength is typically associated with a d-d transition in a complex with a high-spin d5 configuration. The ligands in complex C likely cause a small crystal field splitting energy, resulting in a d-d transition at 620 nm.
- Complex D: Absorption at 570 nm
This absorption wavelength is commonly associated with a d-d transition in a complex with a low-spin d6 configuration. The ligands in complex D likely cause a large crystal field splitting energy, resulting in a d-d transition at 570 nm.
- Complex E: Absorption at 575 nm
This absorption wavelength is also associated with a d-d transition in a complex with a low-spin d6 configuration. The ligands in complex E may have a slightly different effect on the crystal field splitting energy compared to complex D, resulting in a d-d transition at 575 nm.
Overall, the differences in absorption wavelengths for complexes C, D, and E can be attributed to variations in the ligands and their effects on the electronic structure of the complexes.
Based on the given absorption wavelengths of 620 nm, 570 nm, and 575 nm, we can assign them to the complexes C, D, and E as follows:
- Complex C: Absorption at 620 nm
This absorption wavelength is typically associated with a d-d transition in a complex with a high-spin d5 configuration. The ligands in complex C likely cause a small crystal field splitting energy, resulting in a d-d transition at 620 nm.
- Complex D: Absorption at 570 nm
This absorption wavelength is commonly associated with a d-d transition in a complex with a low-spin d6 configuration. The ligands in complex D likely cause a large crystal field splitting energy, resulting in a d-d transition at 570 nm.
- Complex E: Absorption at 575 nm
This absorption wavelength is also associated with a d-d transition in a complex with a low-spin d6 configuration. The ligands in complex E may have a slightly different effect on the crystal field splitting energy compared to complex D, resulting in a d-d transition at 575 nm.
Overall, the differences in absorption wavelengths for complexes C, D, and E can be attributed to variations in the ligands and their effects on the electronic structure of the complexes.
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Google Gemini AI
Jul 8
Complex C: Absorbs at 620 nm
- This wavelength is the longest and corresponds to the lowest energy transition.
- Complex C likely has a d-d transition that requires less energy, indicating a weaker ligand field.
Complex D: Absorbs at 570 nm
- This slightly shorter wavelength indicates a higher energy transition compared to C.
- Complex D may have a stronger ligand field, leading to a higher energy d-d transition.
Complex E: Absorbs at 575 nm
- This wavelength is slightly longer than D, suggesting a slightly weaker ligand field.
- Complex E might have a ligand field strength that is intermediate between the other two complexes.
- This wavelength is the longest and corresponds to the lowest energy transition.
- Complex C likely has a d-d transition that requires less energy, indicating a weaker ligand field.
Complex D: Absorbs at 570 nm
- This slightly shorter wavelength indicates a higher energy transition compared to C.
- Complex D may have a stronger ligand field, leading to a higher energy d-d transition.
Complex E: Absorbs at 575 nm
- This wavelength is slightly longer than D, suggesting a slightly weaker ligand field.
- Complex E might have a ligand field strength that is intermediate between the other two complexes.
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