Homework Answers
structure of D-arabinose
clearly says it all . The C1 which is directly attached to oxygen
by double bond is very much dishielded and gives a shift near 170
ppm , the carbon next to carbonyl carbon is also deshielded but not
as much as carbonyl carbon remaining carbons comes under 50 ppm
bonded to other carbons and deshielding decreases as distance
decreases .
Similarly in H NMR the aldehyde proton is very much deshielded due to electron withdrawing property of carbonyl group . The next desheilded proton is the alpha proton which will give doublet . Hydrogen bonded to C3 will show double doublet and shift will be less than alpha proton . The hydrogen bonded to remaining carbon will show decrease in chemical shift with their corresponding coupling according to the number of neighboring hydrogen atom near 2 ppm . The OH protons resonate at different frequency above 5 ppm
Add Answer to:
D-Arabinose, can someone please analyze its Carbon and Proton NMR?
abundance 170.0 160.0 150.0 140.0 130.0...
Is this unknown beta d-glucose based on these NMR's? PLEASE help me analyze the Carbon NMR...
Is
this unknown beta d-glucose based on these NMR's?
PLEASE help me analyze the Carbon NMR and the H NMR!
abundance 170.0 160.0 150.0 140.0 130.0 120.0 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 170.650 170.507 a170.135 169.878 969 691 77.299 77.041 76.793 68 352 68.085 62.028 61.742 20.794 20.660- 20.593 per Million : 130 abundance T 2.28 2.26 2.24 2.22 2.2 TTTTTTTTTTTTTTTTTTT 2.18 2.16 2.14 2.12 2.1 2.08 2.06 2.04 2.02 2.0 1.98 .96 1.94 1.92...
Assign each unknown to the correct carbon nmr spectra. *choices* cycloheptanol, 1-methylcyclohexanol, cyclohexanol, or...
Assign each unknown to the correct carbon nmr spectra. *choices*
cycloheptanol, 1-methylcyclohexanol, cyclohexanol, or
cyclopentanol. Correctly assign all peaks
Unknown A MW=68.1 100.0 0.0 BOLO Top X.parts per Minion 13C U B CARDON-jar UK-B MW= 82.1 N 190.0 1960 1960 1960 vso 160 1909 1960 wako nao meso 180 m 80.0 170.0 160.0 50.0 140.0 130 120.0 110.0 100.0 90.0 0.0 *********, pro 100 min 0.0 0.0 0.0 0 0.4 UK-C 77 ppm Coc, 0.3 en el www. WWWWWWWW W...
Which unknown from the list represents the NMR below: -cycloheptanol -1-methylcyclohexanol -cyclohexanol -cyclopentanol -4-methylcyclohexanol 0 0....
Which unknown from the list represents the NMR below:
-cycloheptanol
-1-methylcyclohexanol
-cyclohexanol
-cyclopentanol
-4-methylcyclohexanol
0 0. 8 0.7 UK-D 0.6 0.5 0.4 0.3 0.2 abundance 0.1 0 90.0 80.0 70.0 60.0 50.0 10.0 190.0 180.0 170.0 160.0 150.0 140.0 130.0 120.0 110.0 100.0 132.3 X: parts per Million : 13C 40.0 323 30.0 20.0 298 27.5
Characterization of product by H and C NMR spectrum analysis. Hi I just finished the Benzocaine synthesis for chem lab. I need help analyzing my NMR data for benzocaine. I've attached the proton a...
Characterization of product by H and C NMR spectrum analysis. Hi
I just finished the Benzocaine synthesis for chem lab. I need help
analyzing my NMR data for benzocaine. I've attached the proton and
carbon NMR spectrum for benzocaine above. Please include as much
infomation as possible and indicate if the results and reaction was
a success.
1 andol 220.0 210.0 200.0 190.0 180.0 170.0 160.0 150.0 140.0 130.0 120.0 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0...
Help me find this Aldose Unknown based on its HNMR, CNMR, and optical rotation. This unknown...
Help me find this Aldose Unknown based on its HNMR, CNMR, and
optical rotation.
This unknown was very dark in color and it was optically
active. The five options are listed below:
22._ 170. 0 160.0 150.0 40.0 130.0 120.0 110.0 100. 0 90.0 80.0 700 60.0 50.0 40.0 30.0 20.0 A A A 70.650 7170 507 170.135 169878 909 77.299 77.041 76.799 68352 6R ONS 62038 61.70 20 794 20 600 20:59 per Million 70 15.02 60 50 40...
Given the C-NMR, H-HNMR and IR spectrum, what is this compound? It has a melting point...
Given the C-NMR, H-HNMR and IR
spectrum, what is this compound? It has a melting point of 134
degrees celsius and is in deuterated chloroform
solvent.
#40-B C NMR 0.5 abundance 18010 170.0 1600 150.0 140.0 130.0 1200 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 173.1580 147.4781 140.9673 129.7718 118.2608 9ISSILL 77.1310 76.7103 18.8397 X: parts per Million : 13C CD bundance 7.0 8.0 X: parts per Million: 1H 7.3613 7.3270 7. 98 7.2766 6.2053 6.1962 6.1824...
(C++ please. Make sure it works in Visual Studios if possible) Functions or classes are ok....
(C++ please. Make sure it works in Visual Studios if possible) Functions or classes are ok. Please read data into program from descending_mostly_sorted.txt and store into an array. Implement Selection Sort to sort the values in ascending order. Least → Greatest Measure the time it takes to execute the sort in milliseconds or even nanoseconds. Please run the sort 3 times. Data for descending_mostly_sorted.txt {1001000.0, 10000.0, 9990.0, 9980.0, 9970.0, 9960.0, 9950.0, 9940.0, 9930.0, 9920.0, 9910.0, 9900.0, 9890.0, 9880.0, 9870.0, 9860.0,...
PART 1 Initialize the array from the Values.txt Mostly Sorted Descending. (VALUES ARE GIVEN BELOW) (YOU CAN...
PART 1 Initialize the array from the Values.txt Mostly Sorted Descending. (VALUES ARE GIVEN BELOW) (YOU CAN COPY AND PASTE THE ARRAY VALUES INTO YOUR PROGRAM) Task 1: Functions or classes are ok. Initialize the array from the Values.txt Mostly Sorted Descending. Implement Selection sort to sort the values in ascending order. Least → Greatest Measure the time it takes to execute the sort in milliseconds. Please run the sort 3 times. Attach Photos of Source Code and Output Task 2:...
fix my code please. program should output the original array and sorted array then time taken...
fix my code please. program should output the original array and
sorted array then time taken for sorting. there's no error in my
code but it keeps presenting 0.0 or some weird values as output.
just edit my code please. c++
#include <iostream>
#include <string>
//string
#include <fstream> //file
buffer
#include <iomanip>
//setprecision
using namespace std;
class BubbleSort
{
private:
float array[1000];
public:
void read()
{
string str;
string s;...
Is
this unknown beta d-glucose based on these NMR's?
PLEASE help me analyze the Carbon NMR and the H NMR!
abundance 170.0 160.0 150.0 140.0 130.0 120.0 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 170.650 170.507 a170.135 169.878 969 691 77.299 77.041 76.793 68 352 68.085 62.028 61.742 20.794 20.660- 20.593 per Million : 130 abundance T 2.28 2.26 2.24 2.22 2.2 TTTTTTTTTTTTTTTTTTT 2.18 2.16 2.14 2.12 2.1 2.08 2.06 2.04 2.02 2.0 1.98 .96 1.94 1.92...
Assign each unknown to the correct carbon nmr spectra. *choices*
cycloheptanol, 1-methylcyclohexanol, cyclohexanol, or
cyclopentanol. Correctly assign all peaks
Unknown A MW=68.1 100.0 0.0 BOLO Top X.parts per Minion 13C U B CARDON-jar UK-B MW= 82.1 N 190.0 1960 1960 1960 vso 160 1909 1960 wako nao meso 180 m 80.0 170.0 160.0 50.0 140.0 130 120.0 110.0 100.0 90.0 0.0 *********, pro 100 min 0.0 0.0 0.0 0 0.4 UK-C 77 ppm Coc, 0.3 en el www. WWWWWWWW W...
Which unknown from the list represents the NMR below:
-cycloheptanol
-1-methylcyclohexanol
-cyclohexanol
-cyclopentanol
-4-methylcyclohexanol
0 0. 8 0.7 UK-D 0.6 0.5 0.4 0.3 0.2 abundance 0.1 0 90.0 80.0 70.0 60.0 50.0 10.0 190.0 180.0 170.0 160.0 150.0 140.0 130.0 120.0 110.0 100.0 132.3 X: parts per Million : 13C 40.0 323 30.0 20.0 298 27.5
Characterization of product by H and C NMR spectrum analysis. Hi
I just finished the Benzocaine synthesis for chem lab. I need help
analyzing my NMR data for benzocaine. I've attached the proton and
carbon NMR spectrum for benzocaine above. Please include as much
infomation as possible and indicate if the results and reaction was
a success.
1 andol 220.0 210.0 200.0 190.0 180.0 170.0 160.0 150.0 140.0 130.0 120.0 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0...
Help me find this Aldose Unknown based on its HNMR, CNMR, and
optical rotation.
This unknown was very dark in color and it was optically
active. The five options are listed below:
22._ 170. 0 160.0 150.0 40.0 130.0 120.0 110.0 100. 0 90.0 80.0 700 60.0 50.0 40.0 30.0 20.0 A A A 70.650 7170 507 170.135 169878 909 77.299 77.041 76.799 68352 6R ONS 62038 61.70 20 794 20 600 20:59 per Million 70 15.02 60 50 40...
Given the C-NMR, H-HNMR and IR
spectrum, what is this compound? It has a melting point of 134
degrees celsius and is in deuterated chloroform
solvent.
#40-B C NMR 0.5 abundance 18010 170.0 1600 150.0 140.0 130.0 1200 110.0 100.0 90.0 80.0 70.0 60.0 50.0 40.0 30.0 20.0 173.1580 147.4781 140.9673 129.7718 118.2608 9ISSILL 77.1310 76.7103 18.8397 X: parts per Million : 13C CD bundance 7.0 8.0 X: parts per Million: 1H 7.3613 7.3270 7. 98 7.2766 6.2053 6.1962 6.1824...
fix my code please. program should output the original array and
sorted array then time taken for sorting. there's no error in my
code but it keeps presenting 0.0 or some weird values as output.
just edit my code please. c++
#include <iostream>
#include <string>
//string
#include <fstream> //file
buffer
#include <iomanip>
//setprecision
using namespace std;
class BubbleSort
{
private:
float array[1000];
public:
void read()
{
string str;
string s;...
Most questions answered within 3 hours.
-
In the Metric System, the basic unit of measurement for length
is ___
In the Metric...
asked 3 minutes ago -
A spatially uniform electric field varies in time according
to E = Eo + 3000 t,...
asked 4 minutes ago -
A sample of C3H8 has 1.60×1024 H atoms.
How many carbon atoms does the sample contain?...
asked 10 minutes ago -
Discuss the sales orders process module(s) in the Enterprise
Resource Planning system. How does it contribute...
asked 12 minutes ago -
The position in an object as a function of time is given as ?
(?) =...
asked 13 minutes ago -
Design a class for python named PersonData with the following
member variables:
lastName
firstName
address
city...
asked 27 minutes ago -
How does use of the risk/need/responsivity model impact
effective rehabilitation services?
asked 31 minutes ago -
Your rich uncle has just given you a high school graduation
present of $900,000. The present,...
asked 33 minutes ago -
1=Write a program in C to get 16-bit data from Port-D and send
it to ports...
asked 32 minutes ago -
Calculate Ecell for the following reaction and conditions: 0.50
M Br2 (aq), 0.10 M Pb+2 (aq),...
asked 52 minutes ago -
There can be more than one correct answer.
Hypophysiotropic hormones:
A. released by the hypothalamus
B....
asked 58 minutes ago -
Scott Ruskin is the CEO of Decatur Materials. The company has
been struggling for the last...
asked 56 minutes ago