Chemistry: Principles and Reactions
8th Edition
ISBN: 9781305079373
Author: William L. Masterton, Cecile N. Hurley
Publisher: Cengage Learning
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Chapter 19, Problem 46QAP
Interpretation Introduction
Interpretation: To determine the wavelength of maximum absorption for
Concept introduction: The energy difference between the two group of d-orbitals formed as a result of approach of ligand towards the central metal atom for the formation of an octahedral complex is known as crystal field splitting energy. Depending upon the magnitude of crystal field spilling energy, two different types of complexes are formed − high spin and low spin.
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When water ligands in [Ti(H2O)6]3+ are replaced by CN- ligands to give [Ti(CN)6]3-, the maximum absorption shifts from 500 nm to 450 nm. Is this shift in the expected direction? Explain.
[CoF6]3- absorbs 700 nm (red) radiation whereas [Co(H2O)6]3+ absorbs 600 nm (orange) radiation.
Please draw the crystal field splitting of the above two complexes. Clearly label the orbitals and show the electron occupation.
[CoF6]3- absorbs 700 nm (red) radiation whereas [Co(H2O)6]3+ absorbs 600 nm (orange) radiation.
What are the colors (appearance) of the above complexes?
Chapter 19 Solutions
Chemistry: Principles and Reactions
Ch. 19 - Prob. 1QAPCh. 19 - Prob. 2QAPCh. 19 - Prob. 3QAPCh. 19 - Platinum(II) forms many complexes, among them...Ch. 19 - Prob. 5QAPCh. 19 - What is the coordination number of the central...Ch. 19 - Prob. 7QAPCh. 19 - Prob. 8QAPCh. 19 - Prob. 9QAPCh. 19 - Prob. 10QAP
Ch. 19 - Prob. 11QAPCh. 19 - Prob. 12QAPCh. 19 - What is the mass percent of sulfur in the...Ch. 19 - Prob. 14QAPCh. 19 - There are four iron atoms in each hemoglobin...Ch. 19 - Vitamin B12 is a coordination compound with cobalt...Ch. 19 - Prob. 17QAPCh. 19 - Prob. 18QAPCh. 19 - Name the following ions or compounds (a)...Ch. 19 - Name the following ions or compounds (a)...Ch. 19 - Prob. 21QAPCh. 19 - Prob. 22QAPCh. 19 - Sketch the geometry of (a)...Ch. 19 - Sketch the geometry of (a) tans-[Cu(Br)2(H2O)4]...Ch. 19 - Prob. 25QAPCh. 19 - Prob. 26QAPCh. 19 - Which of the following octahedral complexes show...Ch. 19 - Prob. 28QAPCh. 19 - Prob. 29QAPCh. 19 - Prob. 30QAPCh. 19 - Prob. 31QAPCh. 19 - Prob. 32QAPCh. 19 - Write an abbreviated orbital diagram and determine...Ch. 19 - Prob. 34QAPCh. 19 - Give the electron distribution in low-spin and/or...Ch. 19 - Prob. 36QAPCh. 19 - Prob. 37QAPCh. 19 - Prob. 38QAPCh. 19 - Prob. 39QAPCh. 19 - Prob. 40QAPCh. 19 - Give the number of unpaired electrons in...Ch. 19 - Prob. 42QAPCh. 19 - Ti(NH3)63+ has a d-orbital electron transition at...Ch. 19 - has a crystal field splitting energy, o, of...Ch. 19 - Prob. 45QAPCh. 19 - Prob. 46QAPCh. 19 - Prob. 47QAPCh. 19 - Prob. 48QAPCh. 19 - Prob. 49QAPCh. 19 - Indicate whether each of the following is true or...Ch. 19 - A child eats 10.0 g of paint containing 5.0% Pb....Ch. 19 - A certain coordination compound has the simplest...Ch. 19 - Prob. 53QAPCh. 19 - In the [Ti(H2O)63+] ion, the splitting between the...
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- Classify each ligand as monodentate, bidentate, and so on. (a) (CH3)3P (b) H2N(CH2)2NH(CH2)2NH2 (c) H2Oarrow_forwardGive the number of unpaired electrons in octahedral complexes with strong-field ligands for (a) Rh3+ (b) Mn3+ (c) Ag+ (d) Pt4+ (e) Au3+arrow_forwardFour different octahedral chromium coordination compounds exist that all have the same oxidation state for chromium and have H2O and Cl as the ligands and counterions. When 1 mole of each of the four compounds is dissolved in water, how many moles of silver chloride will precipitate upon addition of excess AgNO3?arrow_forward
- Platinum(II) forms many complexes, among them those with the following ligands. Give the formula and charge of each complex. (a) two ammonia molecules and one oxalate ion (C2O42-) (b) two ammonia molecules, one thiocyanate ion (SCN-), and one bromide ion (c) one ethylenediamine molecule and two nitrite ionsarrow_forwardhas a crystal field splitting energy, o, of 2.60102 kJ/mol. What is the wavelength responsible for this energy?arrow_forwardIn both [Fe(H2O)6]2+ and [Fe(CN)6]4- ions, the iron is present as Fe(II); however, one of these complexes is paramagnetic, whereas the other is diamagnetic. Please write the electronic configuration of d-orbital for these two complexes and explain this difference.arrow_forward
- Draw the octahedral crystal field d orbital splitting diagrams for [Fe(OH2)6] 2+ and [Fe(CN)6] 3. Indicate if the diagrams are high spin and low spin. give the names of the d-orbitals (dxz, dxy, dzy, dz2, dx2 - y2) label the appropriate orbital sets eg* and t2g and show how the electrons populate the diagram. (Hint: Pairing energy for 3d orbitals Fe 2+ = 29875 cm-1, Fe 3+ = 19150 cm-1; delta OH for Fe(OH2)6]2+ = 14300 cm-1 and delta OH for [Fe(CN)6]3 - is 35000 cm-1arrow_forwardCalculating the LSFE of [Fe(H2O)6]Cl2, knowing that Δo = 10,400 cm–1 and P = 17,600 cm–1Hints: Calculate the oxidation state of the metal. Decide whether the complex will be high or low spin using the splitting and pairing energies. Use the appropriate equation.arrow_forward3. Consider the blue-colored compound, [Cr(H₂O)]3³ and the yellow-colored compound, [Cr(CN)6]³. Calculate their magnetic moments and discuss their magnetic properties and their color.arrow_forward
- [Fe(CN)6]3- ion has magnetic moment of 1.73 B.M. whereas [Fe(H2O)6]3+ has a magnetic moment of 5.92 B.M. Explain and provide the hybridization of Fe in both complexes.arrow_forwardThe self exchange electron-transfer reaction between [Co(en)3]3+ and [Co(en)3]2+ is rather slow. Explain this observation on the basis of d-orbital occupations.arrow_forwardPredict the number of unpaired spins in:- [Cr(en)3]2+ (ethylenediamine is a strong field ligand). - [Mn(H2O)6]2+ (water is a weak field ligand).arrow_forward
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