Surface-controlled self-assembly of chiral sexithiophenes

P.E.L.G. Leclère; M. Surin; R. Lazzaroni; A.F.M. Kilbinger; O. Henze; P. Jonkheijm; F. Biscarini; M. Cavallini; W.J. Feast; E.W. Meijer; A.P.H.J. Schenning

doi:10.1039/b316399g

Surface-controlled self-assembly of chiral sexithiophenes

P.E.L.G. Leclère, M. Surin, R. Lazzaroni, A.F.M. Kilbinger, O. Henze, P. Jonkheijm, F. Biscarini, M. Cavallini, W.J. Feast, E.W. Meijer, A.P.H.J. Schenning

Research output: Contribution to journal › Article › Academic › peer-review

51 Citations (Scopus)

Abstract

We report on the self-assembly of two enantiomeric sexithiophenes in soln. and on surfaces. Circular dichromism of aggregated sexithiophenes and drop-cast films reveals, as expected, mirror image spectra for both enantiomers. The aggregation in thin deposits from sexithiophenes molecularly dispersed in a soln. on different types of substrates was investigated by at. force microscopy (AFM). On graphite, one-dimensional objects (nanowires) are formed while on mica platelets are generated. Remarkably, we found that both enantiomers form left-handed helixes on silicon. This observation depends on the hydrophilicity of the silicon. Furthermore, the achiral sexithiophene did not form helical aggregates suggesting that the stereocenter is required to obtain chirality in the fibers

Original language	English
Pages (from-to)	1959-1963
Number of pages	5
Journal	Journal of Materials Chemistry
Volume	14
Issue number	13
DOIs	https://doi.org/10.1039/b316399g
Publication status	Published - 2004

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title = "Surface-controlled self-assembly of chiral sexithiophenes",

abstract = "We report on the self-assembly of two enantiomeric sexithiophenes in soln. and on surfaces. Circular dichromism of aggregated sexithiophenes and drop-cast films reveals, as expected, mirror image spectra for both enantiomers. The aggregation in thin deposits from sexithiophenes molecularly dispersed in a soln. on different types of substrates was investigated by at. force microscopy (AFM). On graphite, one-dimensional objects (nanowires) are formed while on mica platelets are generated. Remarkably, we found that both enantiomers form left-handed helixes on silicon. This observation depends on the hydrophilicity of the silicon. Furthermore, the achiral sexithiophene did not form helical aggregates suggesting that the stereocenter is required to obtain chirality in the fibers",

author = "P.E.L.G. Lecl{\`e}re and M. Surin and R. Lazzaroni and A.F.M. Kilbinger and O. Henze and P. Jonkheijm and F. Biscarini and M. Cavallini and W.J. Feast and E.W. Meijer and A.P.H.J. Schenning",

year = "2004",

doi = "10.1039/b316399g",

language = "English",

volume = "14",

pages = "1959--1963",

journal = "Journal of Materials Chemistry",

issn = "0959-9428",

publisher = "Royal Society of Chemistry",

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}

Surface-controlled self-assembly of chiral sexithiophenes. / Leclère, P.E.L.G.; Surin, M.; Lazzaroni, R.; Kilbinger, A.F.M.; Henze, O.; Jonkheijm, P.; Biscarini, F.; Cavallini, M.; Feast, W.J.; Meijer, E.W.; Schenning, A.P.H.J.

In: Journal of Materials Chemistry, Vol. 14, No. 13, 2004, p. 1959-1963.

Research output: Contribution to journal › Article › Academic › peer-review

TY - JOUR

T1 - Surface-controlled self-assembly of chiral sexithiophenes

AU - Leclère, P.E.L.G.

AU - Surin, M.

AU - Lazzaroni, R.

AU - Kilbinger, A.F.M.

AU - Henze, O.

AU - Jonkheijm, P.

AU - Biscarini, F.

AU - Cavallini, M.

AU - Feast, W.J.

AU - Meijer, E.W.

AU - Schenning, A.P.H.J.

PY - 2004

Y1 - 2004

N2 - We report on the self-assembly of two enantiomeric sexithiophenes in soln. and on surfaces. Circular dichromism of aggregated sexithiophenes and drop-cast films reveals, as expected, mirror image spectra for both enantiomers. The aggregation in thin deposits from sexithiophenes molecularly dispersed in a soln. on different types of substrates was investigated by at. force microscopy (AFM). On graphite, one-dimensional objects (nanowires) are formed while on mica platelets are generated. Remarkably, we found that both enantiomers form left-handed helixes on silicon. This observation depends on the hydrophilicity of the silicon. Furthermore, the achiral sexithiophene did not form helical aggregates suggesting that the stereocenter is required to obtain chirality in the fibers

AB - We report on the self-assembly of two enantiomeric sexithiophenes in soln. and on surfaces. Circular dichromism of aggregated sexithiophenes and drop-cast films reveals, as expected, mirror image spectra for both enantiomers. The aggregation in thin deposits from sexithiophenes molecularly dispersed in a soln. on different types of substrates was investigated by at. force microscopy (AFM). On graphite, one-dimensional objects (nanowires) are formed while on mica platelets are generated. Remarkably, we found that both enantiomers form left-handed helixes on silicon. This observation depends on the hydrophilicity of the silicon. Furthermore, the achiral sexithiophene did not form helical aggregates suggesting that the stereocenter is required to obtain chirality in the fibers

U2 - 10.1039/b316399g

DO - 10.1039/b316399g

M3 - Article

VL - 14

SP - 1959

EP - 1963

JO - Journal of Materials Chemistry

JF - Journal of Materials Chemistry

SN - 0959-9428

IS - 13

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