#4. For a methane molecule, find the irreducible representations using the four C-H bonds as a basis.
Answer the following questions based on this questions:
Continued from Problem 4 in Homework #2.
(a) What orbitals on the central C atom will be used to form the ?
bonds in CH4?
(b) Could d orbitals on the C atom play a role in orbital formation
in CH4? Explain why or why not.
(c) In SiH4, could d orbitals be used to form the ? bonds? If so,
which d orbitals?
#4. For a methane molecule, find the irreducible representations using the four C-H bonds as a...
What irreducible representations do the four H 1s orbitals on CH4 span? Are there s and p orbitals on the central C atom that may form molecular orbitals with them? In SiH4, where 3d orbitals might be available, could these orbitals play a role in forming molecular orbitals by overlapping with the H 1s orbitals?
4. The planar molecule SO3 shown below has Dzh symmetry. Oos- a) Determine the irreducible representations of the oxygen o orbital combinations. b) Construct a qualitative MO diagram for SO3 using the oxygen o orbitals and the 3s and 3p valence orbitals on the sulphur. c) Which sulphur orbital is not involved in o bonding with the oxygens? d) Determine the irreducible representations of the six oxygen a orbital combinations. e) Which d orbitals on sulphur can undergo i bonding...
4. Draw an MO diagram for CN- including: a. The irreducible representations describing each basis orbital. b. The relative energies of the basis orbitals. c. The relative energies of the product orbitals. d. The irreducible representations describing each product molecular orbital. e. The electron occupancy of each product molecular orbital.
11. The molecule methane, representation of the four C-H bonds is formed T2 irreducible representation. How predict and Raman active C-H stretching vibratio 33 to the Ta point group (found below). The reducible our C-H bonds is formed from one A irreducible representation and one presentation. How many infrared active C-H stretching vibrations would you Raman active C-H stretching vibrations would you predict for CHA? (4 points) Character table for T, point group Esc, 3c, 6s, 600 A1 1 1...
please answer the following wuestion and explain why.
Pago < 3 of 3 0 - 200 4. The molecule BrFs can be prepared by directly reacting Br with Fz at high temperature. (a) Draw a Lewis structure using Br as the central atom. (b) Identify the point group of this molecule. (C) Use the 2s orbitals of the F4 square arrangement of atoms to forma reducible representation in the point group from part d. (d) Reduce this representation to its...
2) HO adopts C2v symmetry (a) Create SALCs for the H atoms and, using the Czv character table on the attached sheet, derive representations for each SALC and then assign the appropriate symmetry. (b) Assign the symmetry for the orbitals on the central O atom, again using the character table (c) Create a reasonable MO diagram for H O and label appropriately (02s:-32 eV O2p:-16 eV, Hls 4 cV) You may assume the s-orbital on O is functionally non-bonding. (d)...
Could you show how to do (d) step by step, please?
AO = Atomic orbital
MO = Molecular orbital
(L)GO= (Ligand) Group orbital
2. TaHs has a square pyramidal geometry and a Cev symmetry. (a) Assign x, y, z coordinates on the atoms: - Z axis on central Ta atom is the principal rotation axis (z axes on other atoms are colinear) - X, y axes on central Ta atom match Ta-H bonds (x, y axes on other atoms are...
Let's regard the mighty methane molecule (CH4) as a rigid tetrahedron, with the C atom at its center, and CH bond lengths of 1.1 Å (a) Find the position of the center of mass of the molecule. (c) What is the moment of inertia about an axis which is one of the CH bonds'? (d) Show that the moment of inertia about either of the two perpendicular axes is the same. Thus the moment of inertia is independent of the...
Dow lewis electron-dot structures for the following compounds and calculate the formal charge on each atom. (15 pts) b. Brod d. XeO3 2. Predict the molecular shapes and geometries for the compounds in problem 1. (10 pts) 3. What hybrid orbitals would be used by the central atom for o-bonding in each compound in problem 1. (10 pts) 4. Consider a molecule with a formula of ABe, that has a trigonal prism geometry. Using the Dan character table, determine the...
Question #4 & #5?
3) Using Early and Late Molecular Orbitals, draw the two M.O. diagrams for NO , determine which is most stable; calculate and state bond order of each, state diamagnetic or paramagnetioc d if paramagnetic and by how many electrons. an 4) If four hydrogens, each with its 1s orbital, and two carbons, each with its one 2s and three 2p orbitals, form a molecule, then how many molecular orbitals will there be? How many bonding orbitals,...