Synergism in multicomponent self-propagating molecular assemblies

Leila Motiei, Mauro Sassi, Revital Kaminker, Guennadi Evmenenko, Pulak Dutta, Mark A. Iron, Milko van der Boom

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Multicomponent self-propagating molecular assemblies (SPMAs) have been generated from an organic chromo-phore, a redox-active polypyridyl complex, and PdCl2. The structure of the multicomponent SPMA is not a linear combination of two assemblies generated with a single molecular constituent. Surface-confined assemblies formed from only the organic chromophore and PdCl2 are known to follow linear growth, whereas the combination of polypyridyl complexes and PdCl2 results in exponential growth. The present study demonstrates that an iterative deposition of both molecular building blocks with PdCl2 results in an exponentially growing assembly. The nature of the assembly mechanism is dictated by the polypyridyl complex and overrides the linear growth process of the organic component. Relatively smooth, multicomponent SPMAs have been obtained with a thickness of ∼20 nm on silicon, glass, and indium-tin oxide (ITO) coated glass. Detailed information of the structure and of the surface-assembly chemistry were obtained using transmission optical (UV/Vis) spectroscopy, ellipsometry, atomic force microscopy (AFM), synchrotron X-ray reflectivity (XRR), and electrochemistry.

Original languageEnglish
Pages (from-to)1319-1325
Number of pages7
JournalLangmuir
Volume27
Issue number4
DOIs
Publication statusPublished - Feb 15 2011

Fingerprint

assemblies
assembly
glass
electrochemistry
indium oxides
chromophores
tin oxides
ellipsometry
synchrotrons
Glass
atomic force microscopy
chemistry
Ellipsometry
Electrochemistry
Silicon
reflectance
Chromophores
Light transmission
Tin oxides
Ultraviolet spectroscopy

ASJC Scopus subject areas

  • Electrochemistry
  • Condensed Matter Physics
  • Surfaces and Interfaces
  • Materials Science(all)
  • Spectroscopy

Cite this

Motiei, L., Sassi, M., Kaminker, R., Evmenenko, G., Dutta, P., Iron, M. A., & van der Boom, M. (2011). Synergism in multicomponent self-propagating molecular assemblies. Langmuir, 27(4), 1319-1325. https://doi.org/10.1021/la103936t

Synergism in multicomponent self-propagating molecular assemblies. / Motiei, Leila; Sassi, Mauro; Kaminker, Revital; Evmenenko, Guennadi; Dutta, Pulak; Iron, Mark A.; van der Boom, Milko.

In: Langmuir, Vol. 27, No. 4, 15.02.2011, p. 1319-1325.

Research output: Contribution to journalArticle

Motiei, L, Sassi, M, Kaminker, R, Evmenenko, G, Dutta, P, Iron, MA & van der Boom, M 2011, 'Synergism in multicomponent self-propagating molecular assemblies', Langmuir, vol. 27, no. 4, pp. 1319-1325. https://doi.org/10.1021/la103936t
Motiei L, Sassi M, Kaminker R, Evmenenko G, Dutta P, Iron MA et al. Synergism in multicomponent self-propagating molecular assemblies. Langmuir. 2011 Feb 15;27(4):1319-1325. https://doi.org/10.1021/la103936t
Motiei, Leila ; Sassi, Mauro ; Kaminker, Revital ; Evmenenko, Guennadi ; Dutta, Pulak ; Iron, Mark A. ; van der Boom, Milko. / Synergism in multicomponent self-propagating molecular assemblies. In: Langmuir. 2011 ; Vol. 27, No. 4. pp. 1319-1325.
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