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Oligoethylene Chains Terminated by Ferrocenyl End Groups: Synthesis, Structural Properties, and Two‐Dimensional Self‐Assembly on Surfaces
Author(s) -
Wedeking Katrin,
Mu Zhongcheng,
Kehr Gerald,
Cano Sierra Jesus,
Mück Lichtenfeld Christian,
Grimme Stefan,
Erker Gerhard,
Fröhlich Roland,
Chi Lifeng,
Wang Wenchong,
Zhong Dingyong,
Fuchs Harald
Publication year - 2006
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200500552
Subject(s) - highly oriented pyrolytic graphite , materials science , olefin metathesis , crystallography , metathesis , pyrolytic carbon , graphite , monolayer , chain (unit) , catalysis , chemistry , nanotechnology , organic chemistry , polymer , polymerization , composite material , physics , astronomy , pyrolysis
A series of unsaturated long‐chain‐bridged diferrocenes Fc‐(CH 2 ) n ‐CHCH‐(CH 2 ) n ‐Fc ( 4 a – e ) was synthesized by means of olefin metathesis. Subsequent catalytic hydrogenation furnished the saturated α,ω‐bis‐ferrrocenyl oligoethylene products Fc‐(CH 2 ) m ‐Fc ( 5 ). Members of both series formed highly ordered laminar structures at the highly oriented pyrolytic graphite (HOPG) solid/liquid interface or on the Ag(110) surface, which were characterized by STM. Details of the structural features of these ordered physisorbed surface assemblies of 4 and 5 were analyzed by comparison with DFT calculations on model systems and with the characteristic packing modes of these systems in the crystal.