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Versatile Micropatterns of N‐Heterocyclic Carbenes on Gold Surfaces: Increased Thermal and Pattern Stability with Enhanced Conductivity
Author(s) -
Nguyen D. Thao,
Freitag Matthias,
Körsgen Martin,
Lamping Sebastian,
Rühling Andreas,
Schäfer Andreas H.,
Siekman Martin H.,
Arlinghaus Heinrich F.,
van der Wiel Wilfred G.,
Glorius Frank,
Ravoo Bart Jan
Publication year - 2018
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201807197
Subject(s) - carbene , surface modification , materials science , monolayer , conductivity , nanotechnology , thermal stability , microcontact printing , chemical engineering , adduct , combinatorial chemistry , polymer chemistry , chemistry , organic chemistry , catalysis , engineering
Patterned monolayers of N‐heterocyclic carbenes (NHCs) on gold surfaces were obtained by microcontact printing of NHC–CO 2 adducts and NHC(H)[HCO 3 ] salts. The NHC‐modified areas showed an increased conductivity compared to unmodified gold surface areas. Furthermore, the remaining surface areas could be modified with a second, azide‐functionalized carbene, facilitating further applications and post‐printing modifications. Thorough elucidation by a variety of analytical methods offers comprehensive evidence for the viability of the methodology reported here. The protocol enables facile access to versatile, microstructured NHC‐modified gold surfaces with highly stable patterns, enhanced conductivity, and the option for further modification.