Question 16 The molecular orbital diagram on the left shows the frontier molecular orbitals for cyclobutadiene (a rare example of an organic compound with a triplet ground state electronic configuration). Based on your knowledge of the molecular symmetry and of selection rules: Determine the point group for cyclobutadiene Determine the symmetry labels for the molecular orbitals 11, 12/3, and t4. b) c) Determine if any of the electronic transitions below are Laporte allowed T2/3 → T4

Question 16 The molecular orbital diagram on the left shows the frontier molecular orbitals for cyclobutadiene (a rare example of an organic compound with a triplet ground state electronic configuration). Based on your knowledge of the molecular symmetry and of selection rules: Determine the point group for cyclobutadiene Determine the symmetry labels for the molecular orbitals 11, 12/3, and t4. b) c) Determine if any of the electronic transitions below are Laporte allowed T2/3 → T4

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 13.26E: Determine the point groups of the following molecules. a Hydrogen peroxide, H2O2 it is not planar. b...

See similar textbooks

Similar questions

Determine the point group of the following molecules. a cis1,2 Dichloroethylene b trans1,2 Dichloroethylene c Toluene, C6H5CH3 d 1,3-Cyclohexadiene.
Determine the point groups of the following molecules. a Hydrogen peroxide, H2O2 it is not planar. b Allene, CH2=C=CH2 c D-alanine Its absolute stereochemistry can be found in any good organic or biochemistry textbook. d L-alanine, and compare with part c above.
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.
a In the Td point group, an S41 improper rotation is equivalent to what other improper rotation? b In the D6h point group, the symmetry operation labeled C21 is equivalent to what other symmetry operation?
Q4) What two types of orbitals are interacting here (just use letter designations) and what would the symmetry relationship for an interaction between the following two orbitals be?
Please help me I beg you
1. Pyridine (shown below) is a planar delocalized molecule Similar to benzene H 1) Identify its principal rotation axis (draw it it on picture) 11) Determine its point group and give your resoning / explainin H H C IC H 。 H and label 1211
(i) Determine the point group for each compound below. O2N O,N -NO2 -NO2 -NO2 O2N (ii) Using symmetry considerations, state whether each compound in part (i) can have a permanent dipole moment, explaining your reasoning.
ASAP please
Determine the point group symmetry for following molecules a) SF-Cl b) trans-[CoBr2C14]³- c) CH3Br d) [NbAss]³- Nb
3. Determine the point group for the following molecules or objects. Draw the molecule or object and show all symmetry elements explicitly. • a wine glass • cis-platin (cis-[PtCl2(NH3)4] (draw but ignore the H atoms in the symmetry operations) BFCIBR • Fe2(CO), (see figure) • a tennis ball (neglect imperfections in the covering and the label, concentrate on the design of the seam.) OC, Fe CO OC Fé OC CO ad direl > Generative Painting by Miguel Ángel Vidal; Buenos Aires Museo Moderno
1. For each of the following molecules, list the symmetry elements present and assign its point group. (а) CH3 Cú (assume planar, ignore Hs) H3C (b) SFSCI (c) BFCIBr (planar molecule) (d) CI `CI (e) NH3 CHPT-CI NH3 (f) NH3 CHPt-NH3 CI