Abstract
Scanning tunneling microscopy and x-ray absorption spectroscopic results at the Fe K edge of Fe phthalocyanine (FePc) thin films grown on Au substrates, together with theoretical calculations, allow us to refine the structure of the film. In particular, we show that the columnar stacking of the FePc molecules is different from that found in bulk α and β phases. Moreover, the molecules do not lay parallel to the surface of the substrate. These structural findings are relevant to understand magnetism of FePc films.
Highlights
The columns are formed by molecules parallel to each other with central metal ions forming the axis of the column
Scanning tunneling microscopy and x-ray absorption spectroscopic results at the Fe K edge of Fe phthalocyanine (FePc) thin films grown on Au substrates, together with theoretical calculations, allow us to refine the structure of the film
In the a-phase, the adjacent molecule is shifted by dxy 1⁄4 61.69 Aalong the (1,1,0) axis, so that its Fe atom is near the center of one of the pyrrolic rings of the molecules above and below
Summary
The columns are formed by molecules parallel to each other with central metal ions forming the axis of the column. FePc exhibits two monoclinic phases with a columnar stacking structure, differing in the tilt angle h of the normal to the molecular plane with the stack axis: h is 26:5 for the a phase, while in the b phase h 1⁄4 44:8.1,2
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.