Tetradecylferrocene: ordered molecular array of an organometallic amphiphile in the crystal and in a two-dimensional assembled structure on a surface.
Tetradecylferrocene (4, Fc-(CH2)13CH3) was synthesized via lithiation of ferrocene by treatment with tert-butyl lithium, followed by alkylation with 1-bromotetradecane. Complex 4 forms a physisorbed ordered molecular monolayer on the surface of highly oriented pyrolytic graphite (HOPG) that was analyzed by scanning tunneling microscopy (STM). It features a lamellar structure with single rows of ferrocenyl moieties separating connecting areas formed by the long alkyl chains which are arranged parallel to each other. The ordering principle of 4 on the surface can be related to the arrangement of Fc-(CH2)13CH3 molecules in the three-dimensional crystal lattice.
Organisch-Chemisches Institut der Universität Münster, Corrensstr. 40, 48149 Münster, Germany.
Katrin
K
Wedeking
Zhongcheng
Z
Mu
Gerald
G
Kehr
Roland
R
Fröhlich
Gerhard
G
Erker
Lifeng
L
Chi
Harald
H
Fuchs