interpret fragment ion peaks in the mass
spectra of simple organic compounds, eg the
difference between propanal and propanone
deduce functional groups present in
organic compounds and predict infrared
absorptions, given wavenumber data, due
to familiar functional groups.
i C–H stretching absorptions in
alkanes, alkenes and aldehydes
ii O–H stretching absorption in
alcohols and carboxylic acids iii
N–H stretching absorption in
amines iv C=O stretching
absorption in aldehydes and
ketones v C–X stretching
absorption in halogenoalkanes vi
as an analytical tool to show the
change in functional groups
during the oxidation of an alcohol
to a carbonyl
understanding that only molecules
which change their polarity as they
vibrate can absorb infrared
radiation
understanding that H2O, CO2, CH4 and NO
molecules absorb IR radiation and are greenhouse
gases, whilst O2 and N2 are not.