Difference between revisions of "Chem341:NMR workshop/Ethyl 2-chloropropanoate"

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<quiz>
 
<quiz>
{ Try to give predictions for chemical shift, integration (no. of Hs) and multiplicity (neighbors+1), then assign the peaks (1, 2, 3, 4) to a particular hydrogen type (a, b, c, d). You may well want to refer to the [[#Tables_of_chemical_shifts|chemical shifts table]].
+
{ Try to give predictions for chemical shift, integration (no. of Hs) and multiplicity (neighbors+1), then assign the peaks (1, 2, 3, 4) to a particular hydrogen type (A, B, C, D).  
[[File:Ethyl2chloropropanoate.png|200px|right]]
 
 
|type="{}"}
 
|type="{}"}
Hydrogen Type '''a'''
+
Hydrogen Type '''A'''
 
{ 0.9-1.9 _3 } Predicted &delta;
 
{ 0.9-1.9 _3 } Predicted &delta;
 
{ 3 _1 }    Integration
 
{ 3 _1 }    Integration
 
{ 2 _1 }    Multiplicity
 
{ 2 _1 }    Multiplicity
 
{ 3 _1 }    Assignment
 
{ 3 _1 }    Assignment
Hydrogen Type '''b'''
+
Hydrogen Type '''B'''
 
{ 3.7-4.7 _3 } Predicted &delta;
 
{ 3.7-4.7 _3 } Predicted &delta;
 
{ 1 _1 }    Integration
 
{ 1 _1 }    Integration
 
{ 4 _1 }    Multiplicity
 
{ 4 _1 }    Multiplicity
 
{ 1 _1 }    Assignment
 
{ 1 _1 }    Assignment
Hydrogen Type '''c'''
+
Hydrogen Type '''C'''
 
{ 3.6-4.6 _3 } Predicted &delta;
 
{ 3.6-4.6 _3 } Predicted &delta;
 
{ 2 _1 }    Integration
 
{ 2 _1 }    Integration
 
{ 4 _1 }    Multiplicity
 
{ 4 _1 }    Multiplicity
 
{ 2 _1 }    Assignment
 
{ 2 _1 }    Assignment
Hydrogen Type '''d'''
+
Hydrogen Type '''D'''
 
{ 0.9-1.6 _3 } Predicted &delta;
 
{ 0.9-1.6 _3 } Predicted &delta;
 
{ 3 _1 }    Integration
 
{ 3 _1 }    Integration
 
{ 3 _1 }    Multiplicity
 
{ 3 _1 }    Multiplicity
 
{ 4 _1 }    Assignment
 
{ 4 _1 }    Assignment
 
 
</quiz>
 
</quiz>
  
 
Once you have completed this, you can [[Chem341:NMR workshop|return to the main NMR workshop page]].
 
Once you have completed this, you can [[Chem341:NMR workshop|return to the main NMR workshop page]].

Latest revision as of 12:52, 26 October 2009

Proton NMR of ethyl 2-chloropropanoate

<quiz> { Try to give predictions for chemical shift, integration (no. of Hs) and multiplicity (neighbors+1), then assign the peaks (1, 2, 3, 4) to a particular hydrogen type (A, B, C, D). |type="{}"} Hydrogen Type A { 0.9-1.9 _3 } Predicted δ { 3 _1 } Integration { 2 _1 } Multiplicity { 3 _1 } Assignment Hydrogen Type B { 3.7-4.7 _3 } Predicted δ { 1 _1 } Integration { 4 _1 } Multiplicity { 1 _1 } Assignment Hydrogen Type C { 3.6-4.6 _3 } Predicted δ { 2 _1 } Integration { 4 _1 } Multiplicity { 2 _1 } Assignment Hydrogen Type D { 0.9-1.6 _3 } Predicted δ { 3 _1 } Integration { 3 _1 } Multiplicity { 4 _1 } Assignment </quiz>

Once you have completed this, you can return to the main NMR workshop page.