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Infrared Spectroscopy

Infrared Spectroscopy

Infrared Spectroscopy. Electromagnetic radiation. Ultraviolet 190 nm to 400 nm Electronic transitions s to s * p to p * Visible 400 nm to 700 nm Electronic transitions involving molecular orbitals. Electromagnetic Radiation. Infrared 800 nm to 2500 nm Near infrared

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970 views • 23 slides
Diazonium salts synthesis

Diazonium salts synthesis

Diazonium salts synthesis. benzenediazonium ion. Diazonium salts, reactions Coupling to form azo dyes Replacements a) -Br, -Cl, -CN b) -I c) -F d) -OH e) -H f) etc. coupling to form azo dyes. Sandmeyer. Ar-N 2 + + CuCl ? Ar-Cl + N 2

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1.26k views • 20 slides
SURVEY OF SPECTRA

SURVEY OF SPECTRA

O-H 3600 N-H 3400 C-H 3000 C=N 2250 C=C 2150 C=O 1715 C=C 1650 C-O 1100. =. =. EFFECTS OF CONJUGATION AND RING SIZE ON C=O. ALKENES AND AROMATICS. ( C=C STRETCHING). SURVEY OF SPECTRA. CONJUGATION. Conjugation of C=O with C=C.

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401 views • 15 slides
Phenols

Phenols

Phenols. Phenol. The antiseptic property of phenol was discovered in 1865 by Joseph Lister, a physician in Scotland. Listerine, named after him, contains phenol as the active ingredient.

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1.36k views • 15 slides
Spectroscopy of Aldehydes and Ketones

Spectroscopy of Aldehydes and Ketones

Spectroscopy of Aldehydes and Ketones. IR Spectrum of Acetone. C=O. IR Spectrum of Acetophenone. C=O. IR Spectrum of Acetaldehyde. Ald. C-H. C=O. IR Spectrum of p-Tolualdehyde. Ald. C-H. Ald. C-H. C=O. C=O. Summary of Spectral Features.

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955 views • 12 slides
Spectroscopy of Aldehydes and Ketones

Spectroscopy of Aldehydes and Ketones

Spectroscopy of Aldehydes and Ketones. IR Spectrum of Acetone. C=O. IR Spectrum of Acetophenone. C=O. IR Spectrum of Acetaldehyde. Ald. C-H. C=O. IR Spectrum of p-Tolualdehyde. Ald. C-H. Ald. C-H. C=O. C=O. Summary of Spectral Features.

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1.13k views • 12 slides
Problem 1

Problem 1

Problem 1. 3 peaks (8 C) means considerable symmetry peak at 83 ppm is likely C bonded to O. HRMS gives a mass of 130.1358 which corresponds to C8H18O. IR shows peaks at 2900 and 1060 cm-1. IR indicates only C-O stretch at 1060 cm -1. Problem 2. 6 peaks (6 C) means no symmetry

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247 views • 7 slides

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