electronegativity



 I'm searching for values of electronegativities for some functional groups.
 I'm doing investigations concerning EN vs. bond lenth etc. The ligands in the
 systems are
 	F OH Cl NH2 Br I CH3 H
 This would be the "right" order, if you take into account only the EN
 of the atoms. Some other suggestions or literature?
 				Bye, AHG...
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