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15.19—Data from 13C NMR spectroscopy to: i predict the different environments for carbon atoms present in a molecule, given values

Syllabus
2017
Objective
15.19
Level
A2

—Data from 13C NMR spectroscopy to: i predict the different environments for carbon atoms present in a molecule, given values

Be able to use data from 13C NMR spectroscopy to: i predict the different environments for carbon atoms present in a molecule, given values of chemical shift, δ ii justify the number of peaks present in a 13C NMR spectrum in terms of the number of carbon atoms in different environments.

Use —data from 13c nmr spectroscopy to: i predict the different environments for carbon atoms present in a molecule, given values to connect the rule to the data and decision in the question.

This matters because —data from 13c nmr spectroscopy to: i predict the different environments for carbon atoms present in a molecule, given values determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply —data from 13c nmr spectroscopy to: i predict the different environments for carbon atoms present in a molecule, given values to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: —Data from 13C NMR spectroscopy to: i predict the different environments for carbon atoms present in a molecule, given values is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.

ConceptA-Level Edexcel Chemistry A2