Control of Crystallinity and Porosity of Covalent Organic Frameworks by Managing Interlayer Interactions Based on Self-Complementary π-Electronic Force

被引：271

作者：

Chen, Xiong ^{[1
]}

Addicoat, Matthew ^{[2
]}

Irle, Stephan ^{[2
]}

Nagai, Atsushi ^{[1
]}

Jiang, Donglin ^{[1
,3
]}

机构：

[1] Natl Inst Nat Sci, Inst Mol Sci, Dept Mat Mol Sci, Okazaki, Aichi 4448787, Japan

[2] Nagoya Univ, Grad Sch Sci, Dept Chem, Chikusa Ku, Nagoya, Aichi 4648601, Japan

[3] Japan Sci & Technol Agcy JST, PRESTO, Chiyoda Ku, Tokyo 1020075, Japan

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 02期

基金：

中国国家自然科学基金;

关键词：

TRIAZINE-BASED FRAMEWORKS; PHASE-BEHAVIOR; STACKING; DELAMINATION; COMPLEXES;

D O I：

10.1021/ja3100319

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

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 pi-electronic forces. Fluoro-substituted and nonsubstituted aromatic units at different molar ratios were integrated into the edge units that stack to trigger self-complementary pi-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.

引用

页码：546 / 549

页数：4

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