Toward Two-Dimensional pi-Conjugated Covalent Organic Radical Frameworks

Wu, Shaofei1; Li, Minchan2; Phan, Hoa1; Wang, Dingguan1; Herng, Tun Seng3; Ding, Jun3; Lu, Zhouguang2; Wu, Jishan1

2018-07-02

10.1002/anie.201801998

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   影响因子和分区

1433-7851

1521-3773

Reported is the synthesis, characterization, and material properties of the first pi-conjugated two-dimensional covalent organic radical framework (CORF), PTM-CORF, based on the stable polychlorotriphenylmethyl (PTM) radical. The covalent organic framework (COF) precursor (PTM-H-COF) was first synthesized by liquid/liquid interfacial acetylenic homocoupling of a triethynylpolychlorotriphenylmethane monomer, and showed crystalline features with a hexagonal diffraction pattern matching that of A-B-C stacking. Subsequent deprotonation and oxidation of the PTM units in PTM-H-COF gave PTM-CORF. Magnetic measurements revealed that the neighboring PTM radicals in the PTM-CORF are anti-ferromagnetically coupled each other, with a moderate exchange interaction (J = -375 cm(-1)). The PTM-CORF has a small energy gap (ca. 0.88 eV) and a low-lying LUMO energy level (-4.72 eV), and exhibits high electrocatalytic activity and durability toward the oxygen reduction reaction.

covalent organic frameworks materials science oxygen reduction reaction radicals structure elucidation

SCI ; EI ; IC

英语

NI论文

其他

MOE Tier 3 programme[MOE2014-T3-1-004]

Chemistry

Chemistry, Multidisciplinary

WOS:000436402100010

WILEY-V C H VERLAG GMBH

20182305272482

Materials science ; Pattern matching

Ore Treatment:533.1 ; Materials Science:951

CHEMISTRY

Web of Science

1.Natl Univ Singapore, Dept Chem, 3 Sci Dr 3, Singapore 117543, Singapore
2.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
3.Natl Univ Singapore, Dept Mat Sci & Engn, Singapore 119260, Singapore

Wu, Shaofei,Li, Minchan,Phan, Hoa,et al. Toward Two-Dimensional pi-Conjugated Covalent Organic Radical Frameworks[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2018,57(27):8007-8011.

Wu, Shaofei.,Li, Minchan.,Phan, Hoa.,Wang, Dingguan.,Herng, Tun Seng.,...&Wu, Jishan.(2018).Toward Two-Dimensional pi-Conjugated Covalent Organic Radical Frameworks.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,57(27),8007-8011.

Wu, Shaofei,et al."Toward Two-Dimensional pi-Conjugated Covalent Organic Radical Frameworks".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 57.27(2018):8007-8011.