1C_Lecture_18

1C_Lecture_18 - field splitting. The spectrochemical series...

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Chapter 19: Transition Metals and Coordination Chemistry Octahedral Complexes: In crystal field theory one assumes that the ligands can be represented by negative point charges and that the metal is a positive point charge located at the center of the system. One then examines how these negative point charges interact with the d orbitals. Crystal Field Theory 1 t 2g -orbitals e g -orbitals Which orbitals are lower in energy? Energy
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Chapter 19: Transition Metals and Coordination Chemistry Crystal Field Theory Tetrahedral Complexes: 2 t 2g -orbitals e g -orbitals Which orbitals are lower in energy? Energy
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Chapter 19: Transition Metals and Coordination Chemistry Crystal Field Theory Different ligands affect the d orbitals of a given metal atom or ion to different degrees and thus produce different values of the ligand
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Unformatted text preview: field splitting. The spectrochemical series arranges ligands according to the relative magnitudes of the ligand field splitting that they produce. 3 Large Splitting Small Splitting Chapter 19: Transition Metals and Coordination Chemistry Student Question Crystal Field Theory Predict the number of unpaired electrons of an octahedral d 6 complex with a strong field ligands and weak field ligands respectively. a) 4, 0 b) 0, 4 c) None of the above 4 Chapter 19: Transition Metals and Coordination Chemistry Crystal Field Theory 5 ~ Wavelength Color 800-620 nm Red 620-580 nm Orange 580-560 nm Yellow 560-490 nm Green 490-430 nm Blue 420-400 nm Violet Observed Adsorbed Red Green Orange Blue Yellow Violet Green Red Blue Orange Violet Yellow Electromagnetic Spectrum Determining Color Absorbed...
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1C_Lecture_18 - field splitting. The spectrochemical series...

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