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Describe the [3,3] sigmatographic rearrangement as a simmetry of the orbital.
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- Using the Internet, find a Hckel determinant solver and determine the relative energies of the molecular orbitals for a the butadiene molecule, which has four electrons and b the cyclobutadiene molecule, which also has four electrons. Can you explain why cyclobutadiene is labeled with the word antiaromatic?Assign the following molecules to point groups: a. HF, b. IF5, c. XeO2F2What is the point group resulting from adding the inversion operation to C2v ?
- draw all the possible phasing combination for the conpound [Ir(H)6]3- for the 6s orbital being surrounded by 6 1s hydrogen orbitals. for example) fully bonded in phase representation (shown below)Determine the point group of the following ions/molecules: a) 1,3-bromochlorobenzene b) BClF2use vsepr rules to determine the shapes of each of the following species. then establish their rotation axes and mirror planes and hence identify the point group to which they belong. hint: constructing a molecular model will help (a) phosphine, ph3; (b) the carbonate ion, co3^2-; (c) the sulfate ion, so4^2-; (d) the hexafluorophosphate ion, pf 6-
- What irreducible representations do the four H1s orbitals of CH4 span? Are there s and p orbitals of 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 H1s orbitals?7-Decrease the group in Trans-AB4C2 molecule with changing one atom and determine the group symmetry before and after the changing.Consider the octahedral species CrCl63- (point group Oh). What point group results by (a) removing one Cl (b) replacing one Cl with one Br (c) removing two trans Cl’s