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What is the term symbol of free Fe2+ in the ground state?
When oxygen binds , what change should be made to the bond lenght and angle for Fe--N?
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- The photoelectron spectrum of HBr has two main groups of peaks. The first has ionization energy 11.88 eV. The next peak has ionization energy 15.2 eV, and it is followed by a long progression of peaks with higher ionization energies. Identify the molecular orbitals corresponding to these two groups of peaks.The stable molecular ion H3+ is triangular, with HH distances of 0.87 Å. Sketch the molecule and indicate the region of greatest electron density of the lowest energy MO.The molecular ion HeH+ has an equilibrium bond length of 0.774 Å. Draw an electron correlation diagram for this molecule, indicating the occupied MOs. If the lowest energy MO has the form C11sH+C21sH , do you expect C2 to be larger or smaller than C1 ?
- Why is the measured H-C-O bond angle for CH2O larger than what is predicted by VSEPR?A research student used a new software package to calibrate the electronic map using a material containing only gallium and bromine bonds, Ga and Br. On which atoms might you expect to see the highest electron density?Write the valence-bond wavefunction for the triple bond in N2.
- Is the electron density consistentwith equal contributions from the tworesonance structures for O3? Explain.For the following molecules: A. XeO2F2 (neutron diffraction experiment by Peterson, Willett and Huston.[1] showed that F-Xe-F bond angle is 180o) B. ClF3 (1) Draw the valid Lewis structure, identify the (2) molecular group geometry, (3) electron group geometry, (4) polarity of the bonds, (5) over-all polarity, (6) number of lone pairs, and (7) number of bonding pairs.The wavelength at which the O2 molecule most stronglyabsorbs light is approximately 145 nm. (a) In which regionof the electromagnetic spectrum does this light fall?(b) Would a photon whose wavelength is 145 nm haveenough energy to photodissociate O2 whose bond energy is495 kJ/mol? Would it have enough energy to photoionize O2?
- Write simple valence bond wave functions for the bonds inNH3. What geometry does the VB model predict for NH3?(hydrogen iodide, the superscripts represent the atomic mass number) HI has the bond energy of 3.06 eV. Applying the parabolic approximation to estimate the longest distance in which H and I atoms can be stretched before the dissociation of the molecular bondPredict the ground state electronic configurations of CF, CH, CH+, and CN-. Do any of them have unpaired electrons?