What functional groups are responsible for the absorptions above 1500 cm-1 in compounds Aand B?(a) Compound A3.(b) Compound B4000 3500 3000 25004000 3500 3000 2500 2000Wavenumber (cm-)to 0n2000 1500 1000 500Wavenumber (cm-)edictions: On% Transmittance50% Transmittance

What functional group is responsible for absorption above 1500 cm- list of its given below.

Answered: What functional groups are responsible…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

ChapterL3: Carbon (13c) Nmr Spectroscopy

Section: Chapter Questions

Problem 9CTQ

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Imine compounds usually show stretching bands in the IR in the range of 1690-1649cm-1 and aromatic amines show a C-N stretch at 1340-1265cm-1. A related compound, N-benzylideneaniline, does not show tautomerism and has a C-N stretch at 1678cm-1 while H2SB-1(2-(2-hydroxybenzylideneamino)phenol ) shows a C-N stretch of 1590 cm-1. Given this information, does H2SB-1 show some C-N single bond character.
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The 1H NMR spectrum of methylbenzene (C6H5CH3) recorded on a 500 Mhz spectrometer consists of signals at chemical shifts of 2.21 parts per million and 7.10 ppm. calculate the frequency, downfield of TMS, of each absorption.
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a. An oxygen-containing compound shows an absorption band at ~1700 cm-1 and no absorption bands at ~3300 cm-1, ~2700 cm-1, or ~1100 cm-1. What class of compound is it? b. A nitrogen-containing compound shows no absorption band at ~3400 cm-1 and no absorption bands between ~1700 cm-1 and ~1600 cm-1 or between 2260 cm-1 and 2220 cm-1. What class of compound is it?
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A signal is seen at 600 Hz from the TMS signal in an NMR spectrometer with a 300-MHz operating frequency. a. What is the chemical shift of the signal? b. What is its chemical shift in an instrument operating at 500 MHz? c. How many hertz from the TMS signal is the signal in a 500-MHz spectrometer?

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What functional groups are responsible for the absorptions above 1500 cm-1 in compounds A and B? (a) Compound A 3. (b) Compound B 4000 3500 3000 2500 4000 3500 3000 2500 2000 Wavenumber (cm-) to 0n 2000 1500 1000 500 Wavenumber (cm-) edictions: On % Transmittance 50 % Transmittance