2007
DOI: 10.1590/s0100-40422007000400047
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Esquema geral para elucidação de substâncias orgânicas usando métodos espectroscópico e espectrométrico

Abstract: Recebido em 21/8/06; aceito em 6/10/06; publicado na web em 28/5/07 GENERAL SCHEME FOR ELUCIDATING THE STRUCTURE OF ORGANIC COMPOUNDS USING SPECTROSCOPIC AND SPECTROMETRIC METHODS. This work describes a systematic method to be applied in undergraduate courses of organic chemistry, correlating infrared spectra, hydrogen and carbon-13 nuclear magnetic resonance, and mass spectra. To this end, a scheme and a table were developed to conduct the elucidation of the structure of organic compounds initially using infr… Show more

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Cited by 14 publications
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“…Furthermore, bands located around 2900 cm −1 and 1100 cm −1 are characteristic of the hydroxyl groups and C‐O bond, from carboxylic acid and ester chemical functions, respectively . Absorption peaks placed at 3300–3100 cm −1 and 1700–1600 cm −1 , typical of amide bonds, might be expected in the functionalized materials if chemical bonding had occurred . However, the obtained spectra of functionalized particles (Figure ‐b) did not reveal the existence of these bands, confirming functionalization through adsorption of BSA.…”
Section: Resultsmentioning
confidence: 92%
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“…Furthermore, bands located around 2900 cm −1 and 1100 cm −1 are characteristic of the hydroxyl groups and C‐O bond, from carboxylic acid and ester chemical functions, respectively . Absorption peaks placed at 3300–3100 cm −1 and 1700–1600 cm −1 , typical of amide bonds, might be expected in the functionalized materials if chemical bonding had occurred . However, the obtained spectra of functionalized particles (Figure ‐b) did not reveal the existence of these bands, confirming functionalization through adsorption of BSA.…”
Section: Resultsmentioning
confidence: 92%
“…FT‐IR analysis were performed before and after functionalization with BSA. Initial spectra (Figure ‐a) showed the existence of intense absorption peaks around 1720 cm −1 , which can be assigned to the carbonyl group of carboxylic acid and ester chemical groups . Furthermore, bands located around 2900 cm −1 and 1100 cm −1 are characteristic of the hydroxyl groups and C‐O bond, from carboxylic acid and ester chemical functions, respectively .…”
Section: Resultsmentioning
confidence: 99%
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