Abstract
Fourier transform infrared reflection-absorption spectroscopy (FT-IRAS) has been used to study the orientation and coordination of glycine, L-phenylalanine and L-histidine on gold and copper surfaces. It was found that glycine and L-histidine were weakly adsorbed (physisorbed) in the zwitterionic form on gold. The surface chemical bonding of L-histidine and L-phenylalanine to copper were chemical rather than physical by nature. Conclusive evidence was obtained for coordination to copper through both the amino-nitrogen and carboxylate-oxygen atoms.
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Carlsson, C., Liedberg, B. Fourier transform infrared reflection-absorption spectroscopy of amino acids adsorbed on metal surfaces. Mikrochim Acta 94, 149–152 (1988). https://doi.org/10.1007/BF01205858
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DOI: https://doi.org/10.1007/BF01205858