Principles of Instrumental Analysis
7th Edition
ISBN: 9781305577213
Author: Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 16, Problem 16.6QAP
Interpretation Introduction
Interpretation:
For the N-H stretch, the wavelength and wave number of the fundamental band should be determined.
Concept introduction:
In an
The wave number can be defined as the wavelength per unit distance. The wave number is expressed in
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
The fundamental vibrational wavenumber of 1H19F is 4141.3 cm-1. Predict the fundamental vibrational wavenumber of the deuterium fluoride.
This question pertains to vibrational spectroscopy.
Which of the following molecules would have a pure vibrational spectrum and why? HCl, CO2, N2, H2O
What is the selection rule for vibrational spectroscopy?
The wavenumber of the fundamental vibrational transition of Cl2 is 565 cm-1. Calculate the force constant of the bond.
The vibrational transtion from v=0 to v=1 in CO occured at wavenumber= 2143.4 cm-1 calculate the force constant of CO
Chapter 16 Solutions
Principles of Instrumental Analysis
Knowledge Booster
Similar questions
- The fundamental vibrational wavenumber, ?, of the H19F molecule is at 4138.3 cm-1. Calculate the force constant of the H-F bond in units of N m-1.arrow_forwardSuppose the C=O group in a peptide bond can be regarded as isolated from the rest of the molecule. Given the force constant of the bond in a carbonyl group is 908 N m-1, calculate the vibrational wavenumber of (a) 12C=16O.(b) 13C=16O.arrow_forwardConsider the vibrational mode of CH4 that corresponds to the compression of one C-H bond while the other three C-H bonds stretch. Is it (a) Raman. (b) infrared active?arrow_forward
- For both (i) and (ii) give a qualitative justification for each molecule which of these molecules are rotational Raman active and pure rational microwave absorption spectrum (a) H2O (b) CO2 (c) NH3 (d) N2O (e) Benzene (f) Cl2 give a qualitative justification for each moleculearrow_forwardFunctional groups such as anhydride, carboxylate (but not carboxylic acid), nitro, primary amino give two stretching vibrational bands in the infrared spectrum. What is the origin of these two bands ?arrow_forwardThe vibrations of the methane CH4 molecule belong to the following symmetries: A1 + E + 2T2 while those of the deuterated methane CH3D belong to: 3A1 and 3E. How many bands are active in IR and Raman in each moleculearrow_forward
- What is the vibrational wavenumber for carbon dioxide? Explain how you got this answer.arrow_forwarda.) The spacings of the rotational fine structure lines of carbon dioxide 12C16O2 are determined from IR spectroscopy to be 0.7604 cm-1. Calculate the C=O bond length of the molecule (given masses: m(12C) = 12 amu, m(16O) = 15.9949 amu).Ans = ______ Angstroms b.) Suppose that the wavenumber of the J = 1 ← 0 rotational transition of 1H79Br considered as a rigid rotor was measured to be 17.89 cm-1, what is the bond length? Ans = ____ Angstroms When the moment of interia is 3.132x10^-47 kg*m^2(Given the isotopic masses:(m(79Br) = 78.9183 amu, m(81Br) = 80.9163 amu)arrow_forwardFor 1H35Cl molecule, (N1/N0) ratio at 300 K is 6.091 x 10^-2. Calculate the wavenumber ( in cm^-1 ) for J=2→J=3 transition in the microwave spectrum of the molecule.arrow_forward
- Could you use a compact fluorescent light (CFL) bulb to perform UV-visible absorption spectroscopy? Why/why not? Predict the maximum absorption wavelength for 2,4-heptadien-6-one using Woodward-Fieser rules.arrow_forwardEstimate the vibrational frequency and rotational constant for DBr. Provide a numerical answer in cm-1. Assume the bond length is 1.945 Å and the reduced mass is 1.95 amu.arrow_forwardThe H-Cl stretching frequency occurs at approximately 2870 cm-1. If the hydrogen is substituted with a deuterium, predict approximately the absorption wavenumber of the DCl stretch.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Principles of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Physical Chemistry
Chemistry
ISBN:9781133958437
Author:Ball, David W. (david Warren), BAER, Tomas
Publisher:Wadsworth Cengage Learning,