Control of Crystallinity and Porosity of Covalent Organic Frameworks by Managing Interlayer Interactions Based on Self-Complementary π-Electronic Force
- 31 December 2012
- journal article
- Published by American Chemical Society (ACS) in Journal of the American Chemical Society
- Vol. 135 (2), 546-549
- https://doi.org/10.1021/ja3100319
Abstract
Crystallinity and porosity are crucial for crystalline porous covalent organic frameworks (COFs). Here we report synthetic control over the crystallinity and porosity of COFs by managing interlayer interactions based on self-complementary π-electronic forces. Fluoro-substituted and nonsubstituted aromatic units at different molar ratios were integrated into the edge units that stack to trigger self-complementary π-electronic interactions in the COFs. The interactions improve the crystallinity and enhance the porosity by maximizing the total crystal stacking energy and minimizing the unit cell size. Consequently, the COF consisting of equimolar amounts of fluoro-substituted and nonsubstituted units showed the largest effect. These results suggest a new approach to the design of COFs by managing the interlayer interactions.This publication has 49 references indexed in Scilit:
- Covalent Organic Frameworks with High Charge Carrier MobilityChemistry of Materials, 2011
- Enhanced Hydrolytic Stability of Self-Assembling Alkylated Two-Dimensional Covalent Organic FrameworksJournal of the American Chemical Society, 2011
- Exceptional ammonia uptake by a covalent organic frameworkNature Chemistry, 2010
- A Photoconductive Covalent Organic Framework: Self‐Condensed Arene Cubes Composed of Eclipsed 2D Polypyrene Sheets for Photocurrent GenerationAngewandte Chemie-International Edition, 2009
- A Belt‐Shaped, Blue Luminescent, and Semiconducting Covalent Organic FrameworkAngewandte Chemie-International Edition, 2008
- Covalent Organic Frameworks as Exceptional Hydrogen Storage MaterialsJournal of the American Chemical Society, 2008
- Tailoring Microporosity in Covalent Organic FrameworksAdvanced Materials, 2008
- Reticular Synthesis of Microporous and Mesoporous 2D Covalent Organic FrameworksJournal of the American Chemical Society, 2007
- Facile Synthesis of a Highly Crystalline, Covalently Linked Porous Boronate NetworkChemistry of Materials, 2006
- Porous, Crystalline, Covalent Organic FrameworksScience, 2005