Hexonic Acid Hexanoamide Hexanal Methyl Hexanode Hexanal Chloride Hex-3-en-2-one
Spartan Vibrational frequencies:
Compound
Frequencies (in )
2-Hexanone
1934
Hexanoic Anhydride
1946
Hexonic Acid
1964
Hexanoamide
1895
Hexanal
1918
Methyl Hexanode
1940
Hexanal Chloride
1968
Hex-3-en-2-one
1916
Frequencies from the IR spectrophotometer:
Compound
Frequencies (in )
2-Hexanone
1716.2
Hexanoic Anhydride
1816.7
Hexonic Acid
1708.7
Hexanoamide
1628.3
Hexanal
1725.1
Methyl Hexanode
1742.4
Hexanal Chloride
1800.8
Hex-3-en-2-one
1672.3
Discussion:
We are going to investigate the functional group’s bond type and strength by 3 different method, resonance theory, Spartan 3D modeling program, and the IR spectrophotometer. By resonance theory, we are going to draw out Lewis structure for each compound, then based on the numbers of the resonance we are able to create to determine the bond strength for each functional group. As for second method, we are using the Spartan modeling software, where we are able to draw out each of the functional group and have the software calculate the theoretical bond strength for us. And lastly, the IR spectroscopy are used is this experiment to measure the bond strength of each compound, and all the significant data are being collected in our lab notebook in order to further compare with theoretical bond strength. IR spectrophotometer reads off the amount of electromagnetic spectrum being absorbed by the compound then project the frequency IR graph on the computer.
Based on resonance theory frequency ranking of compound are as follow (low to high):
Based on Spartan modeling software frequency ranking of compound are as follow (low to high):
Based on IR spectroscopy frequency ranking of compound are as follow (low to high):
Theoretical Frequency is the highest among all the method.