2. What part of the electromagnetic spectrum (wavelength range)
occupies the infrared region and from it which specific range is
used with the organic molecules. ?
3. In general, how do you compare the radiations of IR with UV,
X-ray and microwave radiation in terms of energy? Organize in
increasing order.
4. What causes exposure or proximity in humans: a) to an IR lamp,
b) spending an hour under the sun, c) taking a plate with X-rays or
obtaining an MRI? Explain in detail and then justify the why?
Describe in detail the effect that an a) IR, b) UV and c) microwave
radiation has on an organic compound?
6. The Planck equation, Delta E = hv, allows to calculate the
energy of any type of radiation, however in the IR for convenience
and easy handling of the energy value it is preferred to use the
inverse of the wavelength in cm-1, which is known as the wave
number. What is the expression for the Planck equation as a
function of the wave number? Apply it to calculate the energy when
the wavelength equals 3.0 μ. Emphasize the units and express the
result in calories
7. What is required so that the absorption of energy by a
functional group can be observed in the IR spectrum?
8. What kind of vibration provides more information about the
presence or absence of a functional group in IR?
9. What is taken into consideration when analyzing an IR
spectrum?
10. What is the equation that allows to determine the position of
any functional group, its meaning and the units that each variable
has?
11. The functional groups that show absorptions dependent on the
substituents and the degree of symmetry around them are:
12. What are the 4 functional groups that always present
absorptions with easily recognizable shape, position and intensity?
Explain.13. What type of vibration requires more energy to produce,
one of stretching or one of bending?
14. How is a (CH3) 2CH- group recognized by IR? Refer to a specific
compound that is not an alkane.
15. Which C = O aliphatic group absorbs more to the right of the IR
spectrum? Show an example and explain the reason.
16. What families of compounds show characteristic absorptions in
the region of traces of the IR spectrum? Provide a molecule for
each case.
Here you go:
2) The Infrared region is around 10-5 meter wavelength region or 500 - 15000 cm-1 wavenumber region. Wave number in case of IR is more popular. Organic molecules basically lie in the 660-4000 cm-1 region or 1.5*10-5 - 2.5*10-6 meter wavelength region.
3) Energy is inversely proportional to the wavelength and thus the increasing energy trend is as follows: Microwave<Infrared<UV<X-ray.
According to Chegg answering policy, I can't answer the rest of the question and please post it separately. Thank You!!
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