Explain the latter stretching mode in the infrared spectrum

Assignment Help Chemistry
Reference no: EM13532046

In trans-1,2-dibenzoylethylene, even though the conjugated C=O group frequency coincides directly with the expected C=C stretching frequency, we would not have expected to observe the latter stretching mode in the infrared spectrum. Why?

Reference no: EM13532046

Questions Cloud

Fire can be helpful to an ecosystem by : The crictical environmental problems of today can ultimatelybe traced to. fire can be helpful to an ecosystem by
The heat needed to raise the temperature of a large cup : The heat required to raise the temperature of a large cup of water (for coffee) from room temperature to boiling is approximately 100 kJ. Express this quantity of heat in kilocalories and British thermal units.
How high will the car go on the last hill : a frictionless roller coaster car of mass m tops the first hill with speed v0 at height h. How high will the car go on the last hill
Compute sales taxes payable and make the entry : All sales are subject to a 6% sales tax. Compute sales taxes payable and make the entry to record sales taxes payable and sales.
Explain the latter stretching mode in the infrared spectrum : In trans-1,2-dibenzoylethylene, even though the conjugated C=O group frequency coincides directly with the expected C=C stretching frequency, we would not have expected to observe the latter stretching mode in the infrared spectrum. Why
How much work is done on the object by the force : A constant force of magnitude F makes an angle ? (measured counterclockwise) with the positive x direction as it acts on an object of mass m moving in the xy plane. How much work is done on the object by the force
Prepare the journal entry to record the redemption : Claremont decides to redeem these bonds at 102 after paying annual interest. Prepare the journal entry to record the redemption on July 1, 2012.
Explaination for the origin of organelles : the most widely accpeted explaination for the origin of organelles is, which of the following is true of commercially grownmushroom?
Interview an appropriate manager from a business : Interview an appropriate manager from a business in your home town.Describe the methods that they use for forecasting. What factors drivemost of their forecasts?

Reviews

Write a Review

Chemistry Questions & Answers

  Find out the actual volumetric flow rate

Using the generalized compressibility charts, determine the actual volumetric flow rate. Assuming this answer is the correct, what is the % error of the answer from part

  What is the molarity of the solution

If you have 24.0 g of NaCl dissolved in 306 mL, what is the molarity of the solution

  Explain reaction in acidic solution phases are optional

In a particular redox reaction, ClO2- is oxidized to ClO4- and Fe3 is reduced to Fe2 . Complete and balance the equation for this reaction in acidic solution. Phases are optional.

  Explain the h3o+ concentration in diet cola than in milk

Diet cola drinks have a pH of about 3.0, while milk has a pH of about 7.0. How many times greater is the H3O+ concentration in diet cola than in milk

  How many moles did she collect

If a chemistry student collected 834 mL of gas at 25 degrees C and 8.00 x 10^2 torr, how many moles did she collect?

  Explain at high temperatures phosgene cocl2 decomposes

In a typical experiment, 0.631 g of COCl2 is injected into a flask of volume 472 cc. When equilibrium is established, it is found that the total pressure is 2.175 atm. Calculate K for the reaction.

  Explain solids are hard and have high melting points

understand that covalent-network solids are hard and have high melting points and that molecular solids are soft and have low melting points, but how do I determine the difference if given an chemical formula?

  Define phosphorus pentachloride decomposes

Phosphorus pentachloride decomposes to phosphorus trichloride at high temperatures according to the equation: PCl5(g) ? PCl3(g) + Cl2(g) At 250° 0.375 M PCl5 is added to the flask. If Kc = 1.80, what are the equilibrium concentrations of each gas?

  Explain how many mmole of methyl oleate did you weigh out

You have weighed out 520 mg of methyl oleate. Knowing that the sample you received only contains 70 % of methyl oleate, how many mmole of methyl oleate did you weigh out

  Estimate the rotational partition function

The rotational constant of CO is 1.931 cm-1. Evaluate the rotational partition function (without approximation) and plot its value as a function of temperature.

  Explain low concentraion on the outside of a cell to a high

Which of the following means of transport would be used to move a medium sized molecule (like an amino acid) from a low concentraion on the outside of a cell to a high concentraion

  How many grams of solute will separate

If a saturated solution of NH4NO3 at 70 °C is cooled to 10 °C, how many grams of solute will separate if the quantity of the solvent is 94.0 g?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd