Chemistry, Physics and Technology of Surface, 2014, 5 (3), 275-283.

STM study of organization of diarylethene molecules on the Au(111) surface



S. V. Snegir, A. L. Kapitanchuk, O. O. Koshova, A. A. Marchenko

Abstract


The self-organisation of terphenylthiazole based diarylethene on Au(111) is studied using scanning tunnelling microscopy (STM). The observations of thickness variation of monolayer of molecules revealed process of molecular geometry changing on Au (111). The signs of molecular ordering on the basis of regularly repeated protrusions are detected. The unit cell of molecular packing is found to be equivalent for monolayers build by molecules in open- and closed-ring forms. For the purpose of interpretation of STM images, quantum chemical calculations of the spatial and electronic structures of the free molecule in neutral state are performed.


Keywords


diarylethene; self-organisation; STM; monolayer; Au(111)

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References


1. Russew M., Hecht S. Photoswitches: from molecules to materials  .  Adv. Mater. - 2010. - XX. - P. 1-13.

2. Gahl C., Schmidt R., Brete D. et al. Structure and excitonic coupling in self-assembled monolayers of azobenzene-functionalized alkanethiols.  J. Am. Chem. Soc. - 2010. - V. 132. - P. 1831-1838.

3. Coumans R., Elemans J., Rowan A., Nolte R. Interlocked porphyrin switches.  Chemistry. - 2013. - V. 19(24). - P. 7758-7770.

4. Liljeroth P., Repp J., Meyer G. Current-induced hydrogen tautomerization and conductance switching of naphthalocyanine molecules.  Science. - 2007. - V. 317. - P. 1203-1206.

5. Masahiro I. Photochromism of diarylethene molecules and crystals.  Proc. Jpn. Acad. Ser. B. - 2010. - V. 86. - P. 472-483.

6. Snegir S., Marchenko A., Yu P. et al. STM observation of open- and closed-ring forms of functionalized diarylethene molecules self-assembled on a Au(111) surface.  J. Phys. Chem. Lett. - 2011. - V. 2. - P. 2433-2436.

7. Arramel T., Pijper C., Kudernac C. et al. Reversible light induced conductance switching of asymmetric diarylethenes on gold: surface and electronic studies.  Nanoscale. - 2013. - V. 5. - P. 9277-9282.

8. Dulić D., Van der Molen S., Kudernac T. et al. One-Way Optoelectronic switching of photochromic molecules on gold.  J. Phys. Rev. Lett. - 2003. - V. 91. - P. 207402–207406.

9. Katsonis N., Kudernac T., Walko M. et al. Reversible conductance switching of single diarylethenes on a gold surface.  Adv. Mater. - 2006. - V. 18. - P. 1397-1400.

10. Becke J. Density-functional thermochemistry. III. The role of exact exchange.  Chem. Phys. - 1993. - V. 98. - P. 5642-5648.

11. Lee C., Yang W., Parr R. Development of the Colle-Salvetti correlation-energy formula into a functional of the electron density.  Phys. Rev. B. - 1988. - V. 37. - P. 785–789.

12. Bhushan B., Kawata S. Applied Scanning Probe Methods VI: Characterization. – Springer, 2009. - 224 p.

13. Marchenko A., Naumovets A., Taraschenko D., Cherepanov V. STM investigations of self-ordered n-octane acid films on Au(111) surface.  Ukr. J. Phys. - 2009. - V. 54. - P. 1-2.




Copyright (©) 2014 S. V. Snegir, A. L. Kapitanchuk, O. O. Koshova, A. A. Marchenko

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