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Vibrational characterization and gas chemisorption of solid films and monolayers of dysposium and holmium bisphthalocyanines
Author(s) -
Souto J.,
Aroca R.,
DeSaja J. A.
Publication year - 1991
Publication title -
journal of raman spectroscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.748
H-Index - 110
eISSN - 1097-4555
pISSN - 0377-0486
DOI - 10.1002/jrs.1250220609
Subject(s) - monolayer , raman spectroscopy , raman scattering , dysprosium , chemisorption , analytical chemistry (journal) , molecule , chemistry , infrared spectroscopy , thin film , infrared , materials science , inorganic chemistry , organic chemistry , optics , nanotechnology , adsorption , physics
Evaporated thin solid films and Langmuir‐Blodgett monolayers of dysprosium and holmium bisphthalocyanine complexes were prepared and characterized using Raman scattering (RS), surface‐enhanced (resonance) Raman scattering, infrared and visible absorption spectroscopy. The spectroscopic evidence for molecular organization and molecular aggregation in the films is discussed. An empirical vibrational assignment of the observed fundamentals is proposed. Spectroscopic data on chemically oxidized films and films exposed to NO x (NO 2 /N 2 O 4 ) were collected to determine the nature of the interaction between the MPc 2 molecule and the NO 2 .