Nanocylindrical confinement imparts highest structural order in molecular self-assembly of organophosphonates on aluminum oxide.
Nanocylindrical confinement imparts highest structural order in molecular self-assembly of organophosphonates on aluminum oxide.
复制标题
纳米圆柱限制赋予有机膦酸酯在氧化铝上的分子自组装最高的结构秩序
作者:
Pathak;Anshuma;Achyut;Braunschweig;Björn;Meltzer;Christian;Hongdan;Lemmens;Winfried;Schwartz;Jeffrey;Tornow
We report the impact of geometrical constraint on intramolecular interactions in self-assembled monolayers (SAMs) of alkylphosphonates grown on anodically oxidized aluminum (AAO). Molecular order in these films was determined by sum frequency generation (SFG) spectroscopy, a more sensitive measure of order than infrared absorption spectroscopy. Using SFG we show that films grown on AAO are, within detection limits, nearly perfectly ordered in an all-trans alkyl chain configuration. In marked contrast, films formed on planar, plasma-oxidized aluminum oxide or α-Al2O3 (0001) are replete with gauche defects. We attribute these differences to the nanocylindrical structure of AAO, which enforces molecular confinement.
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影响因子:
4
作者:
A. Bora;A. Pathak;Kung;M. Vexler;A. Kuligk;A. Cattani;B. Meinerzhagen;G. Abstreiter;J. Schwartz;M. Tornow
通讯作者:
M. Tornow
DOI:
10.1088/0953-8984/28/9/094008
发表时间:
2016
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
作者:
Pathak;Anshuma;Achyut;Kung-Ching;Schmolke;Hannah;Klages;Claus-Peter;Schwartz;Jeffrey;Tornow
通讯作者:
Tornow
影响因子:
15
作者:
Meltzer, Christian;Paul, Jonas;Peukert, Wolfgang
通讯作者:
Peukert, Wolfgang
影响因子:
56.9
作者:
MASUDA, H;FUKUDA, K
通讯作者:
FUKUDA, K
影响因子:
3.9
作者:
Cattani-Scholz, Anna;Liao, Kung-Ching;Tornow, Marc
通讯作者:
Tornow, Marc