Image of the Month

March 2008

1,3,5-BTB acid on HOPG

institution

Microscope:
Homebuilt STM

Controls:
SPM 1000 Control System featuring XPMProTM

Description :
Self-assembled monolayer of 1,3,5-benzenetribenzoic acid. The STM image was obtained in-situ at the liquid-graphite interface with nonanoic acid as solvent. Intermolecular hydrogen bonds facilitate the formation of a nano-porous supramolecular network, which can be utilized for the lateral ordering of nanoscale objects. The lattice parameter amounts to 3.2 nm and the cavity diameter is 2.8 nm.

(further reading: J. Phys. Chem B 110, 10829-10836 (2006))

Courtesy of:
Dr. Lorenz Kampschulte and Dr. Markus Lackinger, Department for Earth and Environmental Science, Ludwig-Maximilians-University Munich