Homework Answers
Molecular ion peak is 124
IR Strong peak of C=O at 1669 cm-1 may be ketone
Strong peak of C=C at 1618 cm-1
1HNMR 6 proton singlet at 2.1 is for 2 CH3CO
2 proton singlet 2CH
13CNMR
Peak at 20 is for CH3, 112 is for CH=C, 165 is for C=CH, 180 is CO
Compound is CH3COCH=C=CHCOCH3 keten
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Find the compound. We do not have the molecular formula.
Sample 3 Mw# 124 100- 80...
You are provided with the molecular formula for each compound. calculate the unsaturation index f...
You are provided with the molecular formula for each compound. calculate the unsaturation index for each problem. -u2C+2+N-X-H For IR, determine the functional groups present and annotate the absorbances that confirm the functional group (including finger print region absorbances). 2 . For 1H NMR, label each signal (a, b, c,.... starting from the right (0.0 PPM). Draw the structure of the compound in the spectra and annotate. 13C NMR spectra is provided for information. Annotation of the 13C NMR is...
For the following unknown, annotate the corresponding spetras and determine the molecular formula and lewis structure....
For the following unknown, annotate the corresponding spetras
and determine the molecular formula and lewis structure.
Anknown IR/HNMR/CNMR MW=122 : 124 AMU 1:1 D 3000 1000 00 RYENUEERI D, 6 M, 1 10 7 4 1 HP-03-172 Ppm N 10 120 60 100 80 40 20 200 180 160 140 ppm CDS-00-26O
6) Use the provided NMR and IR Information to identify a compound with molecular formula CHNO....
6) Use the provided NMR and IR Information to identify a compound with molecular formula CHNO. (20 points) PPM w 3 M EN 180 180 140 120 100 POPIM 80 00 40 220 2 을은 IM 1000 19900 200 not 6) Use the provided NMR and IR information to identify a compound with molecular formula CH19NO2. (20 points) 6 ili 5 PPM لر AA Au لللب H 180 160 140 120 100 PPM 80 60 40 20 26 을은 100...
4) Use the provided NMR information to identify a compound with molecular formula CuHo. (20 points)...
4) Use the provided NMR information to identify a compound with molecular formula CuHo. (20 points) PPM 180 160 140 120 100 PPM 80 60 40 20 Po We were unable to transcribe this image
28. A compound with the molecular formula of C3H.ON shows 1H NMR and 13C NMR as...
28. A compound with the molecular formula of C3H.ON shows 1H NMR and 13C NMR as below. Give the most plausible structure in the box. 2H, 3 peaks 2H, 3 peaks 1H, 1 peak PPM 180 160 140 120 100 80 60 40 20 PPM
For the following unknown, annotate the corresponding spetras and determine the molecular formula and lewis structure....
For the following unknown, annotate the corresponding spetras
and determine the molecular formula and lewis structure.
Unknown # s IR/HNMR/CNMR 1 MW= 88 AMU AVENUE S, 3 T, 1, 2] Broads, Ppm 200 160 140 180 120 80 40 60 20 ó 100 rpm
Determine the structure of the assigned acyl chloride. Find molecular formula, lable peaks and stuctures. Acyl...
Determine the structure of the assigned acyl chloride. Find
molecular formula, lable peaks and stuctures.
Acyl Chloride #1 d-1.303 g/mL 100004-025 M+ 160 80 60 40 M+2 162 20 20 40 60 8100 120 140 160 180 200 m/z Hint: aromatic ring is a thiophene 11 10 5 432 ppm All singlets (6 total signals) Three peaks 200 180 160 140 120 100 60 420 CDS-05-174
A variety of spectra for an organic compound with molecular formula C10H16O are presented below. The experimental accurate mass using (+) APCI source is 153.1280 u. The 1H, 13C, COSY, HSQC and HMBC NM...
A variety of spectra for an organic compound with molecular
formula C10H16O are presented below. The
experimental accurate mass using (+) APCI source is 153.1280 u. The
1H, 13C, COSY, HSQC and HMBC NMR spectra are given in the following
slides. Propose a structure for this unknown and answer or address
the following questions or requirements:
a. Using the most abundant isotopes of C, H and O, what are the
errors in ppm and milli-Daltons for the experimental accurate
mass?...
need molecular formula, compound name and assign at least 2 13C signals 10 20 30 40...
need molecular formula, compound name and assign at
least 2 13C signals
10 20 30 40 50 60 70 80 90 100 110 120 2 Signals 80 60 40 20 0 200 180 160 140 120 100 ppm m, 5 H t, 3 H CHz t, 2H t, 2H t, 2 H m, 2 H
Compound D C6H12O2 6H 2H 3H 1H. ull PPM 180 160 140 120 100 80 60...
Compound D C6H12O2 6H 2H 3H 1H. ull PPM 180 160 140 120 100 80 60 40 20 PPM
You are provided with the molecular formula for each compound. calculate the unsaturation index for each problem. -u2C+2+N-X-H For IR, determine the functional groups present and annotate the absorbances that confirm the functional group (including finger print region absorbances). 2 . For 1H NMR, label each signal (a, b, c,.... starting from the right (0.0 PPM). Draw the structure of the compound in the spectra and annotate. 13C NMR spectra is provided for information. Annotation of the 13C NMR is...
For the following unknown, annotate the corresponding spetras
and determine the molecular formula and lewis structure.
Anknown IR/HNMR/CNMR MW=122 : 124 AMU 1:1 D 3000 1000 00 RYENUEERI D, 6 M, 1 10 7 4 1 HP-03-172 Ppm N 10 120 60 100 80 40 20 200 180 160 140 ppm CDS-00-26O
6) Use the provided NMR and IR Information to identify a compound with molecular formula CHNO. (20 points) PPM w 3 M EN 180 180 140 120 100 POPIM 80 00 40 220 2 을은 IM 1000 19900 200 not 6) Use the provided NMR and IR information to identify a compound with molecular formula CH19NO2. (20 points) 6 ili 5 PPM لر AA Au لللب H 180 160 140 120 100 PPM 80 60 40 20 26 을은 100...
4) Use the provided NMR information to identify a compound with molecular formula CuHo. (20 points) PPM 180 160 140 120 100 PPM 80 60 40 20 Po We were unable to transcribe this image
28. A compound with the molecular formula of C3H.ON shows 1H NMR and 13C NMR as below. Give the most plausible structure in the box. 2H, 3 peaks 2H, 3 peaks 1H, 1 peak PPM 180 160 140 120 100 80 60 40 20 PPM
For the following unknown, annotate the corresponding spetras
and determine the molecular formula and lewis structure.
Unknown # s IR/HNMR/CNMR 1 MW= 88 AMU AVENUE S, 3 T, 1, 2] Broads, Ppm 200 160 140 180 120 80 40 60 20 ó 100 rpm
Determine the structure of the assigned acyl chloride. Find
molecular formula, lable peaks and stuctures.
Acyl Chloride #1 d-1.303 g/mL 100004-025 M+ 160 80 60 40 M+2 162 20 20 40 60 8100 120 140 160 180 200 m/z Hint: aromatic ring is a thiophene 11 10 5 432 ppm All singlets (6 total signals) Three peaks 200 180 160 140 120 100 60 420 CDS-05-174
A variety of spectra for an organic compound with molecular
formula C10H16O are presented below. The
experimental accurate mass using (+) APCI source is 153.1280 u. The
1H, 13C, COSY, HSQC and HMBC NMR spectra are given in the following
slides. Propose a structure for this unknown and answer or address
the following questions or requirements:
a. Using the most abundant isotopes of C, H and O, what are the
errors in ppm and milli-Daltons for the experimental accurate
mass?...
need molecular formula, compound name and assign at
least 2 13C signals
10 20 30 40 50 60 70 80 90 100 110 120 2 Signals 80 60 40 20 0 200 180 160 140 120 100 ppm m, 5 H t, 3 H CHz t, 2H t, 2H t, 2 H m, 2 H
Compound D C6H12O2 6H 2H 3H 1H. ull PPM 180 160 140 120 100 80 60 40 20 PPM
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