Every molecule is assigned to a point group (that describes the symmetry) depending on which symmetry elements (axis of rotation, plane of symmetry, center of inversion are present). What are the point groups for each molecule of the following elements based on their symmetry elements? NH3, C6H6, p-dichlorobenzene, cos PtCl2(NH2)2?

Every molecule is assigned to a point group (that describes the symmetry) depending on which symmetry elements (axis of rotation, plane of symmetry, center of inversion are present). What are the point groups for each molecule of the following elements based on their symmetry elements? NH3, C6H6, p-dichlorobenzene, cos PtCl2(NH2)2?

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter13: Introduction To Symmetry In Quantum Mechanics

Section: Chapter Questions

Problem 13.22E: Figure 13.27 shows the structure of the molecule porphine. Figure 13.27 The structure of porphine....

See similar textbooks

Similar questions

In your own words, explain why an object that has more symmetry elements is said to have higher symmetry than an object with fewer symmetry elements.
Figure 13.27 shows the structure of the molecule porphine. Figure 13.27 The structure of porphine. Determine the symmetry elements present in the molecule, and its point group. Does the point group change if an Fe2+ ion is substituted for the two hydrogen atoms in the center of the porphine ring?
Identify the symmetry elements present in the following objects. a The Eiffel Tower. You may have to look up a picture of it if you dont remember its shape b Any book ignore the printing. c An octagonal wood block. d A jack from the set of jacks pictured here: Note that some of the points end differently.
Structural isomers can have very different point groups. There are three isomers of dichlorobenzene. Identify the point groups of the three isomers.
Determine the point groups of the following molecules. a Fe(CO)5, which has a trigonal bipyramidal structure, b CO32, which has three resonance structures that contribute to its overall shape, c The perfectly staggered conformation of ethane, d The perfectly eclipsed conformer of ethane.
Explain why a molecule with a center of inversion cannot have a dipole moment.
Construct the symmetry-adapted linear combination molecular orbitals for hydrogen sulfide, H2S.
Identify the symmetry elements present in the following objects. a A ream of blank paper, no holes. b A ream of blank three-holed paper. c A round pencil, unsharpened, with cylindrical eraser. d A round pencil, sharpened, with cylindrical eraser.
Determine which single symmetry operation of the following point groups is equivalent to the given combination of multiple symmetry operations. a In C2v, C2v=? b In C2h, iC2=? c In D6h, C6h=? d In D2d, C2C2=? e In Oh, iS4=?
Determine the symmetry species of the D3h point group for the sp2 hybrid orbitals, assuming that the C3 axis is coincident with the z-axis and that one of the orbitals lies along the positive x-axis. See Example 13.16.
Linearly polarized light can be assigned a specific irreducible representation of a symmetry point group. If the electronic ground state of methane has A1g symmetry and x- polarized light has the label T2, what are the symmetry labels of allowed excited electronic states? Use the Td character table in Appendix 3.
Identify all the symmetry elements present in the tetrahedron, the cube, and the octahedron.