
Concept explainers
Interpretation: The colour of the octahedral complexes such as CrX3+6 and CrY3+6 are being different. From this information, the stronger field ligand has to be found out among the neutral ligands X and Y.
Concept Introduction:
Strong field ligands:
- Gives larger splitting.
- So, splitting energy Δo will be large.
- As a consequence electrons do not get transmitted to the higher energy level due to the large energy gap in between. So, remains paired up in the lower energy level.
- Thus, results in low-spin complexes.
- The wavelength of absorption corresponding to the large splitting energy Δo will be of larger wavelength.
- Hence, the wavelength of absorption has a low frequency and lower energy.
Weak field ligands:
- Gives smaller splitting.
- So, splitting energy Δo will be small.
- As a consequence electrons will easily get transmitted to the higher energy level due to the small energy gap in between. So, remains unpaired by occupying the higher energy level.
- Thus, results in high-spin complexes.
- The wavelength of absorption corresponding to the small splitting energy Δo will be of smaller wavelength.
- Hence, the wavelength of absorption has a high frequency and higher energy.
So, if the colour of a given complex is of larger wavelength, then the complex is said to be a high-spin complex with the weak field ligand, since the larger wavelength gives the smallest splitting due to its smaller energy.
In contrast, if the colour of a given complex is of smaller wavelength, then the complex is said to be a low-spin complex with the strong field ligand, since the smaller wavelength gives the largest splitting due to its greater energy.

Want to see the full answer?
Check out a sample textbook solution
Chapter 23 Solutions
Loose Leaf for Chemistry
- Identify and provide an explanation that distinguishes a qualitative and quantitative chemical analysis. Provide examples.arrow_forwardIdentify and provide an explanation of the operational principles behind a Atomic Absorption Spectrometer (AAS). List the steps involved.arrow_forwardInstructions: Complete the questions in the space provided. Show all your work 1. You are trying to determine the rate law expression for a reaction that you are completing at 25°C. You measure the initial reaction rate and the starting concentrations of the reactions for 4 trials. BrO³¯ (aq) + 5Br¯ (aq) + 6H* (aq) → 3Br₂ (l) + 3H2O (l) Initial rate Trial [BrO3] [H*] [Br] (mol/L) (mol/L) | (mol/L) (mol/L.s) 1 0.10 0.10 0.10 8.0 2 0.20 0.10 0.10 16 3 0.10 0.20 0.10 16 4 0.10 0.10 0.20 32 a. Based on the above data what is the rate law expression? b. Solve for the value of k (make sure to include proper units) 2. The proposed reaction mechanism is as follows: i. ii. BrО¸¯ (aq) + H+ (aq) → HBrO3 (aq) HBrO³ (aq) + H* (aq) → H₂BrO3* (aq) iii. H₂BrO³* (aq) + Br¯ (aq) → Br₂O₂ (aq) + H2O (l) [Fast] [Medium] [Slow] iv. Br₂O₂ (aq) + 4H*(aq) + 4Br(aq) → 3Br₂ (l) + H2O (l) [Fast] Evaluate the validity of this proposed reaction. Justify your answer.arrow_forward
- a. H3C CH3 H, 1.0 equiv. Br2arrow_forwardH3C. H3C CH 3 CH 3 CH3 1. LDA 2. PhSeCl 3. H2O2arrow_forwardPlease predict the products for each of the following reactions: 1.03 2. H₂O NaNH, 1. n-BuLi 2. Mel A H₂ 10 9 0 H2SO4, H₂O HgSO4 Pd or Pt (catalyst) B 9 2 n-BuLi ♡ D2 (deuterium) Lindlar's Catalyst 1. NaNH2 2. EtBr Na, ND3 (deuterium) 2. H₂O2, NaOH 1. (Sia)2BH с Darrow_forward
- in the scope of ontario SCH4U grade 12 course, please show ALL workarrow_forwardIs the chemical reaction CuCl42-(green) + 4H2O <==> Cu(H2O)42+(blue) + 4Cl- exothermic or endothermic?arrow_forwardIf we react tetraethoxypropane with hydrazine, what is the product obtained (explain its formula). State the reason why the corresponding dialdehyde is not used.arrow_forward
- Principles of Modern ChemistryChemistryISBN:9781305079113Author:David W. Oxtoby, H. Pat Gillis, Laurie J. ButlerPublisher:Cengage LearningChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningChemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning





