Draw the Lewis structure and describe the bonding in Cr2(CH3COO)4(H2O)2 using MO theory. In the Raman spectrum an intensive line at 556 cm-1 is observed. Assign this band and calculate the force constant using the approach that only two atoms are involved in this vibration. (For comparison: Cd22+ 111 N/m and Hg22+ 169 N/m) - Please answer without copying solutions

Draw the Lewis structure and describe the bonding in Cr2(CH3COO)4(H2O)2 using MO theory. In the Raman spectrum an intensive line at 556 cm-1 is observed. Assign this band and calculate the force constant using the approach that only two atoms are involved in this vibration. (For comparison: Cd22+ 111 N/m and Hg22+ 169 N/m) - Please answer without copying solutions

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter21: Surface Characterization By Spectroscopy And Microscopy

Section: Chapter Questions

Problem 21.6QAP

See similar textbooks

Similar questions

Why is 133C-133C spin-spin splitting not observed in ordinary organic compounds?
Draw the Lewis structure and describe the bonding in Cr2(CH3COO)4(H2O)2 using MO theory. In the Raman spectrum an intensive line at 556 cm-1 is observed. Assign this band and calculate the force constant using the approach that only two atoms are involved in this vibration. (For comparison: Cd22+ 111 N/m and Hg22+ 169 N/m)
Use group theory to predict the number of v(CO) stretching vibrations you would expect to observe in the IR and Raman spectra of cis and trans isomers of Mo(CO)4(PPh3)2. Can these isomers be differentiated by vibrational spectroscopy? (ii) Can these isomers be differentiated by 31P{H} and 13C {¹H} spectroscopy? Fully explain your answer in both cases explaining what you would expect to see in each spectrum. (iii) Reaction of both isomers with more PPh3 affords mixtures of fac and mer isomers of [Mo(CO)3 (PPh3)3]. Give the point groups for each. Can they be distinguished by IR spectroscopy? Please give me all answers
Draw the lewis structure and describe the bondong in Cr2(CH3COO)4(H2O)2 using MO theory. In the Raman spectrum an intensive line at 556 cm-1 is observed. Assign this band and calculate the force constant using the approach that only two atoms are involved in this vibration.
In the characterization of the acid content of petroleum crude, a scientist found the acidic carbonyl (C=0) bond at 1685 cm-1 in the measured Raman spectra. If a blue laser line at 488 nm was used, calculate the laser frequency the absolute frequency of the C3DO stretching mode. iii) If a red laser at 633 nm was used for the analysis, what is the laser frequency and what is the absolute frequency of the C=0 at this wavelength?
Vibrational spectroscopy has played a role in supporting the pentagonal bipyramidal structure of the ion IO2F5 2-. Raman spectroscopy of the tetramethylammonium salt of this ion shows a single absorption in the region expected for I=O stretching vibrations, at 789 cm-1 . Is a single Raman band consistent with the proposed trans orientation of the oxygen atoms?
When CHCl3 is cooled to liquid N2 temperatures (frozen) and a Raman spectrum taken, some of the peaks split into a variety of multiplets. Give a rational explanation for this behaviour. Refer to Cl35 and Cl37 isotopes
Explain the origin of (a) absorption, (b) phosphorescence, and (c) Raman spectra. You may draw the Jablonski diagram to enhance your explanation.
Use the Analytical procedures in analytical chemistry to gain qualitative and quantitative information about palm oil adulterated with Sudan IV dye. Use the Raman spectroscopy as the analytical method.
In the infrared spectrum of He79Br, there is an intense line at 2559 cm−1 . Calculate the force constant of He^79 Br and the period of vibration of He^79 Br.
The protein haemerythrin (Her) is responsible for binding and carrying O2 in some invertebrates. Each protein molecule has two Fe2+ ions that are in very close proximity and work together to bind one molecule of O2, form ing an Fe2O2 group. (a) The Raman spectrum of oxygenated haemerythrinobtained with laser excitation at 500 nm has a band at 844 cm-1 which has been attributed to the O-O stretching mode of bound 16O2. Why is Raman spectroscopy and not infrared spectroscopy the method of choice for the study of the binding of O2 to haemerythrin? (b) Proof that the 844 cm-1band in the Raman spectrum of oxygenated haemerythrin arises from a bound O2 species may be obtained by conducting experiments on samples of haemerythrin that have been mixed with 18O2, instead of 16O2 . Predict the fundamental vibrational wavenumber of the 18O-18O stretching mode in a sample of haemerythrin that has been treated with 18O2. (c) The fundamental vibrational wavenumbers for the O-O stretching modes of O2,…
5. Predict the ESR spectrum of pentafluorooxovanadium(IV), VOF, . For v, I=7/2 with explanation. 6. Show how an ESR spectrum having three lines could arise by (a) hyperfine coupling to two nuclei with spin I= ½ and (b) hyperfine coupling to a nuclear spin 1. How can these two possibilities be distinguished?