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Published on: September 28, 2020
The influence of ortho-methyl substitution in organometallic self-assembly - a comparative study on Cu(111) vs.
Massimo Fritton1, Katrin Otte, Jonas Björk
1Deutsches Museum, Museumsinsel 1, 80538 Munich, Germany. markus@lackinger.org.
Abstract:
Metal surface-induced dehalogenation of precursors is known to initiate self-assembly of organometallic networks, where tectons are connected via carbon-metal-carbon (C-M-C) bonds. Even though reversibility of the C-M-C bonds facilitates structural equilibration, defects associated with highly bent organometallic linkages are still commonly observed. By introducing a steric hindrance to reduce the C-M-C bond angle flexibility, we find well ordered organometallic networks of an ortho-methyl substituted 1,3,5-tris(p-bromophenyl)benzene analogue on Cu(111) after room-temperature (RT) deposition and on Ag(111) after annealing.
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