Backscatter Fe-57 Mossbauer studies of iron(II) phthalocyanine

Phthalocyanines are established gas sensitive materials. We have successfully recorded backscatter conversion electron Mossbauer spectra (CEMS) of iron(ll) phthalocyanine. Further, we have shown that the introduction of nitrogen dioxide, a typical analyte for these materials, into the detector system can be achieved without deleterious effects. The method allows surface sensitive spectra of these materials to be recorded under normal sensor operating conditions of temperature and pressure. The high vacuum conditions of other surface sensitive techniques used to study materials of this type are not required by this method. (C) 2002 Elsevier Science Ltd. All rights reserved.