10) For carbon disulfide, all vibrations that are Raman active are IR inactive and vice-versa. But for nitrous oxide (N₂O) the vibrations are simultaneously (both) Raman and IR active. What can be concluded about the geometries (shape) of CS2 and N₂O ?

10) For carbon disulfide, all vibrations that are Raman active are IR inactive and vice-versa. But for nitrous oxide (N₂O) the vibrations are simultaneously (both) Raman and IR active. What can be concluded about the geometries (shape) of CS2 and N₂O ?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Consider a trigonal bipyramidal molecule Fe(CO)5. please answer all thank you with all your reasinings from the basics (ii) How many normal modes and how many CO stretching vibrations belong this molecule possesses including which point group does it belong to? (iii) Determine the irreducible representations of CO stretching vibrations of a Fe(CO)5 molecule. Clearly show all your work. (iv) Which of the stretching vibrations of a Fe(CO)5 molecule are active in IR and which in Raman spectra? Justify your choice.
Magnetic Resonance Imaging (MRI) is a medical technology that allows us to create three dimensional detailed anatomical images. MRI uses a strong magnetic field to excite and detect changes in the direction of the rotational axis of protons. Contrasting agents are often used in MRI imaging. They work by creating a local magnetic field that shortens the relaxation time for the excited hydrogen nuclei. To do this, the element used as a contrasting agent needs to be very paramagnetic (i.e. have strong intrinsic magnetic properties). To be paramagnetic, an atom must have orbitals with unpaired electrons. The more unpaired electrons present, the more paramagnetic it is. Q1. Write the electron configurations for the following elements, Ar, Mn, Ca. Q2. Draw an orbital diagram for each of the elements above. Q3. Which element would make the best contrasting agent, why?
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According to free-electron molecular orbital theory, the electrons in molecular are regarded as independent particle that in a box with the length L. (a)Draw two molecular orbital shape occupied at butadiene predicted by this model and predict the minimum excitation energy of the molecular. Tetraene can be considered a box with the length 8R, R is 140pm.(b)Calculate the minimum excitement energy and draw HOMO and LUMO.please explain the problem (a) and (b).
(a) to (c)
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