Self-assembled monolayers of alkaneselenolates on (111) gold and silver

A. Shaporenko, Abraham Ulman, A. Terfort, M. Zharnikov

Research output: Contribution to journalArticle

Abstract

Self-assembled monolayers (SAMs) formed from didodecyl diselenide (C12SeSeC12) and didodecyl selenide (C12SeC12) on (111) Au and Ag substrates were extensively characterized by several complementary techniques. C12SeSeC12 was found to form contamination-free, densely packed, and well-ordered C12Se SAMs on both substrates, whereas the adsorption of C12SeC12 occurred only on Au and resulted in the formation of a SAM-like C12SeC12 film with a low packing density and a conformational disorder. The properties of the C12Se SAMs were compared with those of dodecanethiolate (C12S) SAMs. The packing density, orientational order, and molecular inclination in C12Se/Au and C12S/Au were found to be very similar. In contrast, C12Se/Ag exhibited significantly lower packing density, a lower degree of the conformational and orientational order, and a larger molecular inclination than C12S/Ag. The results suggest a sp 3 bonding configuration for the selenium atom on Au and Ag and indicate a larger corrugation of the headgroup-substrate binding energy surface in C12Se/Ag than in C12S/Ag.

Original languageEnglish (US)
Pages (from-to)3898-3906
Number of pages9
JournalJournal of Physical Chemistry B
Volume109
Issue number9
DOIs
StatePublished - Mar 10 2005

Fingerprint

packing density
Self assembled monolayers
Silver
Gold
silver
gold
inclination
selenides
selenium
Substrates
contamination
binding energy
disorders
Selenium
Binding energy
adsorption
configurations
Contamination
atoms
Adsorption

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

Self-assembled monolayers of alkaneselenolates on (111) gold and silver. / Shaporenko, A.; Ulman, Abraham; Terfort, A.; Zharnikov, M.

In: Journal of Physical Chemistry B, Vol. 109, No. 9, 10.03.2005, p. 3898-3906.

Research output: Contribution to journalArticle

Shaporenko, A. ; Ulman, Abraham ; Terfort, A. ; Zharnikov, M. / Self-assembled monolayers of alkaneselenolates on (111) gold and silver. In: Journal of Physical Chemistry B. 2005 ; Vol. 109, No. 9. pp. 3898-3906.
@article{5aa6a37c0e2b445a9efdab11ae87812b,
title = "Self-assembled monolayers of alkaneselenolates on (111) gold and silver",
abstract = "Self-assembled monolayers (SAMs) formed from didodecyl diselenide (C12SeSeC12) and didodecyl selenide (C12SeC12) on (111) Au and Ag substrates were extensively characterized by several complementary techniques. C12SeSeC12 was found to form contamination-free, densely packed, and well-ordered C12Se SAMs on both substrates, whereas the adsorption of C12SeC12 occurred only on Au and resulted in the formation of a SAM-like C12SeC12 film with a low packing density and a conformational disorder. The properties of the C12Se SAMs were compared with those of dodecanethiolate (C12S) SAMs. The packing density, orientational order, and molecular inclination in C12Se/Au and C12S/Au were found to be very similar. In contrast, C12Se/Ag exhibited significantly lower packing density, a lower degree of the conformational and orientational order, and a larger molecular inclination than C12S/Ag. The results suggest a sp 3 bonding configuration for the selenium atom on Au and Ag and indicate a larger corrugation of the headgroup-substrate binding energy surface in C12Se/Ag than in C12S/Ag.",
author = "A. Shaporenko and Abraham Ulman and A. Terfort and M. Zharnikov",
year = "2005",
month = "3",
day = "10",
doi = "10.1021/jp045052f",
language = "English (US)",
volume = "109",
pages = "3898--3906",
journal = "Journal of Physical Chemistry B Materials",
issn = "1520-6106",
publisher = "American Chemical Society",
number = "9",

}

TY - JOUR

T1 - Self-assembled monolayers of alkaneselenolates on (111) gold and silver

AU - Shaporenko, A.

AU - Ulman, Abraham

AU - Terfort, A.

AU - Zharnikov, M.

PY - 2005/3/10

Y1 - 2005/3/10

N2 - Self-assembled monolayers (SAMs) formed from didodecyl diselenide (C12SeSeC12) and didodecyl selenide (C12SeC12) on (111) Au and Ag substrates were extensively characterized by several complementary techniques. C12SeSeC12 was found to form contamination-free, densely packed, and well-ordered C12Se SAMs on both substrates, whereas the adsorption of C12SeC12 occurred only on Au and resulted in the formation of a SAM-like C12SeC12 film with a low packing density and a conformational disorder. The properties of the C12Se SAMs were compared with those of dodecanethiolate (C12S) SAMs. The packing density, orientational order, and molecular inclination in C12Se/Au and C12S/Au were found to be very similar. In contrast, C12Se/Ag exhibited significantly lower packing density, a lower degree of the conformational and orientational order, and a larger molecular inclination than C12S/Ag. The results suggest a sp 3 bonding configuration for the selenium atom on Au and Ag and indicate a larger corrugation of the headgroup-substrate binding energy surface in C12Se/Ag than in C12S/Ag.

AB - Self-assembled monolayers (SAMs) formed from didodecyl diselenide (C12SeSeC12) and didodecyl selenide (C12SeC12) on (111) Au and Ag substrates were extensively characterized by several complementary techniques. C12SeSeC12 was found to form contamination-free, densely packed, and well-ordered C12Se SAMs on both substrates, whereas the adsorption of C12SeC12 occurred only on Au and resulted in the formation of a SAM-like C12SeC12 film with a low packing density and a conformational disorder. The properties of the C12Se SAMs were compared with those of dodecanethiolate (C12S) SAMs. The packing density, orientational order, and molecular inclination in C12Se/Au and C12S/Au were found to be very similar. In contrast, C12Se/Ag exhibited significantly lower packing density, a lower degree of the conformational and orientational order, and a larger molecular inclination than C12S/Ag. The results suggest a sp 3 bonding configuration for the selenium atom on Au and Ag and indicate a larger corrugation of the headgroup-substrate binding energy surface in C12Se/Ag than in C12S/Ag.

UR - http://www.scopus.com/inward/record.url?scp=15544372624&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=15544372624&partnerID=8YFLogxK

U2 - 10.1021/jp045052f

DO - 10.1021/jp045052f

M3 - Article

VL - 109

SP - 3898

EP - 3906

JO - Journal of Physical Chemistry B Materials

JF - Journal of Physical Chemistry B Materials

SN - 1520-6106

IS - 9

ER -