Self-assembled monolayers of oligo(ethylene glycol)-terminated and amide group containing alkanethiolates on gold

Authors
Valiokas, R Svedhem, S Svensson, SCT Liedberg, B
Citation
R. Valiokas et al., Self-assembled monolayers of oligo(ethylene glycol)-terminated and amide group containing alkanethiolates on gold, LANGMUIR, 15(10), 1999, pp. 3390-3394
Citations number
30
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
LANGMUIR
ISSN journal
07437463 → ACNP
Volume
15
Issue
10
Year of publication
1999
Pages
3390 - 3394
Database
ISI
SICI code
0743-7463(19990511)15:10<3390:SMOOGA>2.0.ZU;2-N
Abstract
Self-assembly of oligo(ethylene glycol)-terminated and amide group containi ng alkanethiols (HS(CH2)(15)CONH-EG(n); n = 1, 2, 4, 6) on gold are investi gated by contact angle goniometry, ellipsometry, and infrared reflection-ab sorption spectroscopy. The compounds are shown to form highly ordered monol ayers. The molecular conformation of the oligo(ethylene glycol) sublayer is found to depend on the oligomer chain length and intermolecular interactio ns within the layer, as evidenced by a sharp increase in the amount of heli cal conformers for n = 6.