BioNMR
NMR aggregator & online community since 2003
BioNMR    
Learn or help to learn NMR - get free NMR books!
 

Go Back   BioNMR > Educational resources > NMR Questions and Answers
Advanced Search



Jobs Groups Conferences Literature Pulse sequences Software forums Programs Sample preps Web resources BioNMR issues


Webservers
NMR processing:
MDD
NMR assignment:
Backbone:
Autoassign
MARS
UNIO Match
PINE
Side-chains:
UNIO ATNOS-Ascan
NOEs:
UNIO ATNOS-Candid
UNIO Candid
ASDP
Structure from NMR restraints:
Ab initio:
GeNMR
Cyana
XPLOR-NIH
ASDP
UNIO ATNOS-Candid
UNIO Candid
Fragment-based:
BMRB CS-Rosetta
Rosetta-NMR (Robetta)
Template-based:
GeNMR
I-TASSER
Refinement:
Amber
Structure from chemical shifts:
Fragment-based:
WeNMR CS-Rosetta
BMRB CS-Rosetta
Homology-based:
CS23D
Simshift
Torsion angles from chemical shifts:
Preditor
TALOS
Promega- Proline
Secondary structure from chemical shifts:
CSI (via RCI server)
TALOS
MICS caps, β-turns
d2D
PECAN
Flexibility from chemical shifts:
RCI
Interactions from chemical shifts:
HADDOCK
Chemical shifts re-referencing:
Shiftcor
UNIO Shiftinspector
LACS
CheckShift
RefDB
NMR model quality:
NOEs, other restraints:
PROSESS
PSVS
RPF scores
iCing
Chemical shifts:
PROSESS
CheShift2
Vasco
iCing
RDCs:
DC
Anisofit
Pseudocontact shifts:
Anisofit
Protein geomtery:
Resolution-by-Proxy
PROSESS
What-If
iCing
PSVS
MolProbity
SAVES2 or SAVES4
Vadar
Prosa
ProQ
MetaMQAPII
PSQS
Eval123D
STAN
Ramachandran Plot
Rampage
ERRAT
Verify_3D
Harmony
Quality Control Check
NMR spectrum prediction:
FANDAS
MestReS
V-NMR
Flexibility from structure:
Backbone S2
Methyl S2
B-factor
Molecular dynamics:
Gromacs
Amber
Antechamber
Chemical shifts prediction:
From structure:
Shiftx2
Sparta+
Camshift
CH3shift- Methyl
ArShift- Aromatic
ShiftS
Proshift
PPM
CheShift-2- Cα
From sequence:
Shifty
Camcoil
Poulsen_rc_CS
Disordered proteins:
MAXOCC
Format conversion & validation:
CCPN
From NMR-STAR 3.1
Validate NMR-STAR 3.1
NMR sample preparation:
Protein disorder:
DisMeta
Protein solubility:
camLILA
ccSOL
Camfold
camGroEL
Zyggregator
Isotope labeling:
UPLABEL
Solid-state NMR:
sedNMR


Reply
Thread Tools Search this Thread Rate Thread Display Modes
  #1  
Unread 06-18-2005, 05:30 AM
Junior Member
 
Join Date: Jun 2005
Posts: 1
Points: 12, Level: 1
Points: 12, Level: 1 Points: 12, Level: 1 Points: 12, Level: 1
Level up: 23%, 38 Points needed
Level up: 23% Level up: 23% Level up: 23%
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
NMR Credits: 0
NMR Points: 12
Downloads: 0
Uploads: 0
Default Answered: help with chemical shifts and NMR in Organic Chem?

What would my skeletal structure look like if I have C4 H7 ClO2Singlet @ 6.17 ppmQuartet @ 2.29 ppmTriplet @1.14 ppmPlease help....I'm new at this and have homework due in a few hours...the professor kind of put us on a crash course and the text does not help much!Thanks for anything you can contribute
Reply With Quote


Did you find this post helpful? Yes | No
Best Answer - Posted by Dr OChem0949
CH3CH2CO2CH2ClEven though you left off the integral, this will work. Triplet and quartet means two and three adjacent hydrogens. That means there are two hydrogen left to place on a single carbon, a CH2. It must be attached to an oxygen because it is shifted so far downfield. No more hydrogens and a missing C=O group. Place it between the CH2 and the OCH2Cl.

Content provided by Yahoo Answers.

  #2  
Unread 06-18-2005, 05:30 AM
Junior Member
 
Join Date: Jun 2005
Posts: 1
Points: 2, Level: 1
Points: 2, Level: 1 Points: 2, Level: 1 Points: 2, Level: 1
Level up: 3%, 48 Points needed
Level up: 3% Level up: 3% Level up: 3%
Activity: 0%
Activity: 0% Activity: 0% Activity: 0%
NMR Credits: 100
NMR Points: 2
Downloads: 0
Uploads: 0
Provided Answers: 1
Default help with chemical shifts and NMR in Organic Chem?

CH3CH2CO2CH2ClEven though you left off the integral, this will work. Triplet and quartet means two and three adjacent hydrogens. That means there are two hydrogen left to place on a single carbon, a CH2. It must be attached to an oxygen because it is shifted so far downfield. No more hydrogens and a missing C=O group. Place it between the CH2 and the OCH2Cl.

Content provided by Yahoo Answers.
Reply With Quote


1 out of 1 members found this post helpful. Did you find this post helpful? Yes | No
Reply
Similar Threads
Thread Thread Starter Forum Replies Last Post
19F chemical shifts.jpg
http://upload.wikimedia.org/wikimedia/commons/thumb/2/2e/19F_chemical_shifts.jpg/300px-19F_chemical_shifts.jpg Uploaded by user "Artb33" on Sun, 06 Mar 2011 14:16:00 UTC Added to category on Sun, 06 Mar 2011 14:16:18 UTC Original image: 11812×8197 pixel; 1.905.499 bytes. Licensing : CC-BY-SA,GFDL 19F chemical shifts.jpg More...
nmrlearner NMR pictures 0 03-06-2011 03:35 PM
19F chemical shifts.tif
http://upload.wikimedia.org/wikimedia/commons/thumb/2/22/19F_chemical_shifts.tif/300px-19F_chemical_shifts.tif Uploaded by user "Artb33" on Sun, 06 Mar 2011 14:07:00 UTC Added to category on Sun, 06 Mar 2011 14:07:36 UTC Original image: 11812×8197 pixel; 79.932 bytes. Licensing : CC-BY-SA,GFDL 19F chemical shifts.tif More...
nmrlearner NMR pictures 0 03-06-2011 03:35 PM
[NMR tweet] Three hour organic chem test about Infrared Spectroscopy, Nuclear Magnetic Resonance
Three hour organic chem test about Infrared Spectroscopy, Nuclear Magnetic Resonance and Carbon spectroscopy...done. Cedar City here I come! Published by vrow21 (Ashley Laurence) on 2010-10-14T03:51:35Z Source: Twitter
nmrlearner Twitter NMR 0 10-14-2010 04:18 AM


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



BioNMR advertisements to pay for website hosting and domain registration. Nobody does it for us.



Powered by vBulletin® Version 3.7.3
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Copyright, BioNMR.com, 2003-2013
Search Engine Friendly URLs by vBSEO 3.6.0

All times are GMT. The time now is 08:03 AM.


Map