Electric-Field-Mediated Reversible Transformation between Supramolecular Networks and Covalent Organic Frameworks

Zhen-Feng Cai; Gaolei Zhan; Lakshya Daukiya; Samuel Eyley; Wim Thielemans; Kay Severin; Steven De Feyter

doi:10.1021/jacs.9b05265

Electric-Field-Mediated Reversible Transformation between Supramolecular Networks and Covalent Organic Frameworks

J Am Chem Soc. 2019 Jul 24;141(29):11404-11408. doi: 10.1021/jacs.9b05265. Epub 2019 Jul 10.

Authors

Zhen-Feng Cai¹, Gaolei Zhan¹, Lakshya Daukiya¹, Samuel Eyley², Wim Thielemans², Kay Severin³, Steven De Feyter¹

Affiliations

¹ Department of Chemistry, Division of Molecular Imaging and Photonics , KU Leuven , Celestijnenlaan 200F , B-3001 Leuven , Belgium.
² Department of Chemical Engineering, Renewable Materials and Nanotechnology Group, Campus Kortrijk , KU Leuven , Etienne Sabbelaan 53 , 8500 Kortrijk , Belgium.
³ Institut des Sciences et Ingénierie Chimiques , Ecole Polytechnique Fédérale de Lausanne (EPFL) , 1015 Lausanne , Switzerland.

PMID: 31280563
DOI: 10.1021/jacs.9b05265

Abstract

By using an oriented electric field in a scanning tunneling microscope, one can locally control the condensation of boronic acids at the liquid/solid interface. The phase transition between self-assembled molecular networks and covalent organic frameworks is controlled by changing the polarity of the applied bias. The electric-field-induced phase transformation is reversible under ambient conditions.