Short questions, all-or-nothing. There may be more than one answer per question. axial 3- CN NC Ni CN NC CN equatorial For the square base pyramidal complex [Ni(CN)s]³ shown above, of Cav point group, consider the rotation axes: 2C4 and C2. If the axial CN ligand was substituted by CO, forming [Ni(CO)(CN).]?, maintaining the square pyramidal geometry, which symmetry elements would а. be retained: i. Both C4 and C2. ii. Only the C2. iii. Only the C4. iv. None of the above b. Looking at the symmetry planes: 20v, 20a; Wwhat symmetry elements would be retained if the Co substitution would occur on an equatorial CN ligand (forming again [Ni(CO)(CN).]?) instead? The dihedral planes in this case is the mirror plane that bisects the square planar bonds. i. All gv 2.

Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter8: Bonding In Transition Metal Compounds And Coordination Complexes
Section: Chapter Questions
Problem 31P
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2.
Short questions, all-or-nothing. There may be more than one answer per question.
axial
3-
CN
NC
Ni CN
CN equatorial
NC
а.
For the square base pyramidal complex [Ni(CN)s]3 shown above, of Cav point group, consider
the rotation axes: 2C4 and C2. If the axial CN ligand was substituted by CO, forming
[Ni(CO)(CN)4]?, maintaining the square pyramidal geometry, which symmetry elements would
be retained:
i. Both C4 and C2.
ii. Only the C2.
iii. Only the C4.
iv.
None of the above
b. Looking at the symmetry planes: 20v, 20d; what symmetry elements would be retained if the
Co substitution would occur on an equatorial CN ligand (forming again [Ni(CO)(CN)4]?)
instead? The dihedral planes in this case is the mirror plane that bisects the square planar
bonds.
i. All ov
ii. All od
iii. At least 1 od
iv. At least 1 oy
Transcribed Image Text:2. Short questions, all-or-nothing. There may be more than one answer per question. axial 3- CN NC Ni CN CN equatorial NC а. For the square base pyramidal complex [Ni(CN)s]3 shown above, of Cav point group, consider the rotation axes: 2C4 and C2. If the axial CN ligand was substituted by CO, forming [Ni(CO)(CN)4]?, maintaining the square pyramidal geometry, which symmetry elements would be retained: i. Both C4 and C2. ii. Only the C2. iii. Only the C4. iv. None of the above b. Looking at the symmetry planes: 20v, 20d; what symmetry elements would be retained if the Co substitution would occur on an equatorial CN ligand (forming again [Ni(CO)(CN)4]?) instead? The dihedral planes in this case is the mirror plane that bisects the square planar bonds. i. All ov ii. All od iii. At least 1 od iv. At least 1 oy
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