Local electronic structure of functional groups in glycine as anion, zwitterion, and cation in aqueous solution.
Nitrogen and oxygen K emission spectra of glycine in the form of anions, zwitterions, and cations in aqueous solution are presented. It is shown that protonation has a dramatic influence on the local electronic structure and that the functional groups give a distinct spectral fingerprint.
Gråsjö
Johan
J
Department of Pharmacy, Uppsala University, Box 580, SE-751 23 Uppsala, Sweden.
Andersson
Egil
E
Forsberg
Johan
J
Duda
Laurent
L
Henke
Ev
E
Pokapanich
Wandared
W
Björneholm
Olle
O
Andersson
Joakim
J
Pietzsch
Annette
A
Hennies
Franz
F
Rubensson
Jan-Erik
JE
D004583:Electrons; D005998:Glycine / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D009584:Nitrogen / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry; D012996:Solutions; D013052:Spectrometry, X-Ray Emission; D014867:Water / Q000737:chemistry*
D012996:Solutions; D014867:Water; D009584:Nitrogen; D010100:Oxygen; D005998:Glycine