lab11-disc - Experiment 11: Optical Properties of...

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Experiment 11: Optical Properties of Transition Metal Complexes Name: Fletcher Dostie Experiment Performed: 3/30/09 Turned in: 4/6/09 “I commit to uphold the ideals of honor and integrity by refusing to betray the trust bestowed upon me as a member of the Georgia Tech community.”
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The color of the transition metal complexes was caused by d-d electron transitions. The color of the compound depended on the wavelength absorbed, which was based on the energy difference between the d-d orbitals. Light with energy similar to the energy gap between these orbitals was likely to be absorbed by an electron, promoting it from the lower to the higher energy level. The strength of this crystal field splitting changes with the metal ion in the complex, causing the different complexes to absorb different wavelengths. However, the absorption could only occur if there was a space for the electron to take in the upper orbital, and it was much more likely to occur if no electron had to flip its spin to be promoted. Complexes
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This note was uploaded on 04/16/2009 for the course CHEM 1312 taught by Professor Bottomley during the Spring '07 term at Georgia Institute of Technology.

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lab11-disc - Experiment 11: Optical Properties of...

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