Chemisorption of biomolecules on a metal surface and its role in anomalously intensive Raman scattering

Journal Article · Sun Sep 01 00:00:00 EDT 1985 · Sov. Phys. J. (Engl. Transl.); (United States)

DOI:https://doi.org/10.1007/BF00895905· OSTI ID:5715860

Nabiev, I R; Chumanov, G D; Manykin, E A

This paper discusses the use of amino acids and their derivatives as an example to study the mechanism of enhancement of the Raman spectra of molecules adsorbed on silver hydrosols. It is shown that adsorption occurs as the result of unshared electron pairs of nitrogen and oxygen atoms in amino and carboxyl groups, as well as a result of the formation of pi-electron bonds between aromatic rings and adsorption centers on the surface of the metal. It is shown that only the groups of atoms in direct contact with the metal undergo enhancement; i.e., the enhancement mechanism is local in character. A model of the bonding of amino acids with the metal surface is presented.

• Research Organization: Moscow Physical Engineering Institute, Moscow
• OSTI ID: 5715860
• Journal Information: Sov. Phys. J. (Engl. Transl.); (United States), Vol. 28:3; Other Information: Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 3, pp. 33-37, March, 1985
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
AMINO ACIDS
RAMAN SPECTRA
SILVER COMPOUNDS
SURFACES
ADSORPTION
AROMATICS
ATOMS
BINDING ENERGY
CHEMICAL BONDS
CHEMISORPTION
COLLOIDS
ELECTRON PAIRS
MOLECULES
NITROGEN
OXYGEN
RAMAN EFFECT
SCATTERING
SORPTIVE PROPERTIES
CARBOXYLIC ACIDS
CHEMICAL REACTIONS
DISPERSIONS
ELEMENTS
ENERGY
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
SEPARATION PROCESSES
SORPTION
SPECTRA
SURFACE PROPERTIES
TRANSITION ELEMENT COMPOUNDS
640301* - Atomic
Molecular & Chemical Physics- Beams & their Reactions