2. Consider a hypothetical trigonal bipyramidal Fe(III) complex [FeF2(OH)3]². We need to divide the five donor atoms of the ligands into two groups: 2F and 30. F HO FeOH F OH (a) Identify the point group of the complex and assign x, y, and z to it. (b) Indicate the symmetries of the Fe valence orbitals, i.e., 3d, 4s, and 4p. (c) Derive the symmetries and expressions of the two F σ-SALCs, considering that each F. atom contributes one 2p orbital with a lone pair to form the σ-SALCs. (d) Derive the symmetries and expressions of the three σ-SALCs on the OH ligands, considering that each O atom contributes one 2p orbital with a lone pair to form the σ- SALCs. (e) Draw a σ bonding-only MO energy level diagram for the complex, mark the MOs with symmetry labels, and fill the MOS with the valence electrons. (f) Consider each O atom contributing one perpendicular 2p orbital to form π-SALCs. Derive the symmetries of the three л-SALCS. (g) Identify the MOs in (e) with which the O л-SALCs interact, and discuss the effect of these interactions.
2. Consider a hypothetical trigonal bipyramidal Fe(III) complex [FeF2(OH)3]². We need to divide the five donor atoms of the ligands into two groups: 2F and 30. F HO FeOH F OH (a) Identify the point group of the complex and assign x, y, and z to it. (b) Indicate the symmetries of the Fe valence orbitals, i.e., 3d, 4s, and 4p. (c) Derive the symmetries and expressions of the two F σ-SALCs, considering that each F. atom contributes one 2p orbital with a lone pair to form the σ-SALCs. (d) Derive the symmetries and expressions of the three σ-SALCs on the OH ligands, considering that each O atom contributes one 2p orbital with a lone pair to form the σ- SALCs. (e) Draw a σ bonding-only MO energy level diagram for the complex, mark the MOs with symmetry labels, and fill the MOS with the valence electrons. (f) Consider each O atom contributing one perpendicular 2p orbital to form π-SALCs. Derive the symmetries of the three л-SALCS. (g) Identify the MOs in (e) with which the O л-SALCs interact, and discuss the effect of these interactions.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter21: Transition Metals And Coordination Chemistry
Section: Chapter Questions
Problem 108IP: a. In the absorption spectrum of the complex ion Cr(NCS)63, there is a band corresponding to the...
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![2. Consider a hypothetical trigonal bipyramidal Fe(III) complex [FeF2(OH)3]². We need to
divide the five donor atoms of the ligands into two groups: 2F and 30.
F
HO FeOH
F
OH
(a) Identify the point group of the complex and assign x, y, and z to it.
(b) Indicate the symmetries of the Fe valence orbitals, i.e., 3d, 4s, and 4p.
(c) Derive the symmetries and expressions of the two F σ-SALCs, considering that each F.
atom contributes one 2p orbital with a lone pair to form the σ-SALCs.
(d) Derive the symmetries and expressions of the three σ-SALCs on the OH ligands,
considering that each O atom contributes one 2p orbital with a lone pair to form the σ-
SALCs.
(e) Draw a σ bonding-only MO energy level diagram for the complex, mark the MOs with
symmetry labels, and fill the MOS with the valence electrons.
(f) Consider each O atom contributing one perpendicular 2p orbital to form π-SALCs. Derive
the symmetries of the three л-SALCS.
(g) Identify the MOs in (e) with which the O л-SALCs interact, and discuss the effect of these
interactions.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fcaac65c6-fbc3-4d23-bc38-da6bda30c023%2Ff4aea9ae-df76-41c3-97b8-00e2bbe4560e%2F8t3t29_processed.jpeg&w=3840&q=75)
Transcribed Image Text:2. Consider a hypothetical trigonal bipyramidal Fe(III) complex [FeF2(OH)3]². We need to
divide the five donor atoms of the ligands into two groups: 2F and 30.
F
HO FeOH
F
OH
(a) Identify the point group of the complex and assign x, y, and z to it.
(b) Indicate the symmetries of the Fe valence orbitals, i.e., 3d, 4s, and 4p.
(c) Derive the symmetries and expressions of the two F σ-SALCs, considering that each F.
atom contributes one 2p orbital with a lone pair to form the σ-SALCs.
(d) Derive the symmetries and expressions of the three σ-SALCs on the OH ligands,
considering that each O atom contributes one 2p orbital with a lone pair to form the σ-
SALCs.
(e) Draw a σ bonding-only MO energy level diagram for the complex, mark the MOs with
symmetry labels, and fill the MOS with the valence electrons.
(f) Consider each O atom contributing one perpendicular 2p orbital to form π-SALCs. Derive
the symmetries of the three л-SALCS.
(g) Identify the MOs in (e) with which the O л-SALCs interact, and discuss the effect of these
interactions.
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