Exercícios de Espectroscopia

Exercícios de Espectroscopia

IR Spectrum (KBr disc) 1600

Problem21

60 en

30 Mass Spectrum

No significant UV absorption above 220 nm

13C NMR

Spectrum (100.0 MHz,

,1.'.' • ".OJ ••:...,/.".' ......." ....... h, I 4.... t ,cart. , "~ .....,

proton decoupled

1H NMR Spectrum (400 MHz, 020 solution)

Note: there are 3 protons H20 and HOD which exchange with in solvent

the 020 solventI

expansions

IR Spectrum (liquid film)

100 Mass Spectrum M+' 108

j j, 93 20 l C7HaO

UV Spectrum Amax 269 nm (I091QE 3.2) solvent: methanol

13C NMR Spectrum (100 MHz, CDCI3 solution)

proton decoupled 200

1H NMR Spectrum (400 MHz, CDCI3 solution) expansion lJJ

o(ppm)

IR Spectrum (liquid film)

Problem 23

UV Spectrum

Amax 268nm (10910£ 1.9) solvent: ethanol

800 Mass Spectrum m/e

60 en

13CNMR Spectrum (100 MHz, CDCI3 solution) solvent proton decoupled 129 128 127 ppm

1H NMR Spectrum (400 MHz. CDCI3 solution) expansion Exchanges with

j TMS

Problem24

IR Spectrum (liquid film)

C7H 7Br 1.5

UV spectrum

0.917 mg 110 mls path length: 0.20 cm solvent: hexane

I I I 13C NMR Spectrum

(50.0 MHz, CDCI3 solution) proton decoupled

I I ~expansion I i expansion ~ I i solvent • ppm

I ppm

I o s (ppm)

1H NMR Spectrum (200 MHz, CDCI3 solution) t I I I I I I I I I I I I

IR Spectrum (liquid film)

Problem25

M+" =117 Mass Spectrum

I I I I I I I I r T T I 13C NMR Spectrum expansion

(100.0 MHz, CDCI3solution) ~

DEPT CHz' CH3t CHt expansion I

~ do

Iproton decoupled 129 ppm I solvent •

1H NMR Spectrum (400 MHz, CDCI3 solution)

13C NMR Spectrum l"'~"'"(100 MHz, CDCI3 solution)

DEPT CH21CHJ CHt 129 128 127 ppm

I l"'~""solvent

1H NMR Spectrum

(400 MHz, CDCI3 solution) Exchanges with D20 expansion 1

Mass Spectrum UV Spectrum M+" 107

Amax 256 nm 2.2) solvent: ethanolJ 91

" J C7HgN

-J, 20

IR Spectrum (liquid film)

Problem 26

7.2 ppm

Problem 27

IR Spectrum (liquid film)

20 I, J ,I·· I path length: 1.0 cm

CaH100 solvent: ethanol

I I I li-13C NMR Spectrum expansion (100.0 MHz, , ,

DEPT CH2f CH3t CHt I'::lL , , , solvent

lH NMR Spectrum (400 MHz, CDCI3 solution)

expansion

Exchanges with D20

IR Spectrum (liquid film)

Problem 28

104 Mass Spectrum .><

UV spectrum

5.815 mg/10mls path length: 1.0 cm solvent: ethanol

250 300 A. (nm)

1.5 u

o.Q

I I I I I I I I I I I 13C NMR Spectrum

(100.0 MHz, COCI3 solution)

DEPT CH2, CH3t CHt solvent

1H NMR Spectrum (400 MHz, COCI3 solution) expansions

Exchangeswith 02°

Problem 29

IR Spectrum 1715(liquid film)

I I I I I I I I I I I I 13C NMR Spectrum

(50.0 MHz, CDCI3 solution)

DEPT CH21CH3t CHt I I r proton decoupled ~ solvent I...-J I

1H NMR Spectrum (200 MHz, CDC'3 solution)

Problem 30

IR Spectrum (liquid film)

Mass Spectrum 0.5

M+" 1.0 UV spectrum 134 1.075 mg /10 mls

1 path length: 0.10cm

CgH1QO solvent: ethanol1.5 c- 60

13e NMR Spectrum (20.0 MHz,CDCI3 solution) off-resonance decoupled solvent

(100 MHz, CDC'3 solution) I TMS

~~ LJ L v; I I I I I I I I I

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