Fabrication of bilayer tetrathiafulvalene integrated surface covalent organic frameworks†
Abstract
A bilayer covalent organic framework (COF) of TTF-based building blocks was obtained by imine reaction between tetrathiafulvalene tetraaldehyde (4ATTF) and p-phenylenediamine (PPDA). Direct evidence for the eclipsed stacking of bilayer structure via π–π interaction between TTF units is provided by high resolution scanning tunneling microscopy.
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