Professor JIANG Donglin

photo of Prof Loh KP

Ph. D (The University of Tokyo)
Postdoc (The University of Tokyo)

Contact Information

Department of Chemistry, NUS 
3 Science Drive 3 
Singapore 117543 

Office: MD1-17-03E
Tel: (65)-6516-6774
Fax: (65)-6779-1691


Personal website under construction (refer to research content:;
We are recruiting outstanding Ph. D candidates from April 2018, please drop an email or visit MD1-17-03E.

Research Interests

1. Two-dimensional organic polymers including their design, synthesis, functions and applications

2. Covalent organic frameworks including their chemistry, physics and materials

Selected examples of our work:

1. The general strategy for designing 2D organic polymers and covalent organic frameworks.

Covalent organic frameworks (COFs) are a class of crystalline porous polymers that allow the atomically precise integration of organic units into extended structures with periodic skeletons and ordered nanochannels. One significant feature of COFs is that they are predesignable for combining the geometry and dimension of building blocks to direct the topological evolution of structural periodicity. The diversity of building blocks, scope of covalent linkages, and variety of topology schemes make COFs an emerging materials platform for structural control and functional design. Indeed, COF architectures offer confined molecular space for the interplay with photons, excitons, electrons, holes, spins, ions, and guest molecules, thereby enabling various unique properties and functions. We summarize the major progress in the COFs field and recent achievements in developing new design principles and synthetic strategies. We highlight cutting-edge functional explorations and identify fundamental issues that need to be addressed in conjunction with future research directions from chemistry, physics, and materials perspectives (Nature Reviews Materials 1, 16068 (2016).


2. Two-dimensional fully π-conjugated sp2-carbon covalent organic frameworks

We synthesized a two-dimensional (2D) crystalline covalent organic framework (sp2c-COF) that was designed to be fully π-conjugated and constructed from all sp2-carbons by C=C condensation reactions of tetrakis(4-formylphenyl)pyrene and 1,4-phenylenediacetonitrile. The C=C linkages topologically connect pyrene knots at regular intervals into a 2D lattice with π-conjugations extended along both x and y directions, and develop an eclipsed layer framework rather than the more conventionally obtained disordered structures. The sp2c-COF is a semiconductor with a discrete band gap of 1.9 eV and can be chemically oxidized to enhance conductivity by 12 orders of magnitude. The generated radicals are confined on the pyrene knots, enabling the formation of a paramagnetic carbon structure with high spin density. The sp2-carbon framework induces ferromagnetic phase transition to develop spin-spin coherence and align spins unidirectionally across the material (Science 357, 673-676 (2017).

Selected Recent Publications

  • Two-Dimensional sp2 Carbon-Conjugated Covalent Organic Frameworks
    Enquan Jin, Mizue Asada, Qing Xu, Sasanka Dalapati, Matthew A. Addicoat, Michael A. Brady, Hong Xu, Toshikazu Nakamura, Thomas Heine, Qiuhong Chen, and Donglin Jiang*
    Science 357, 673-676 (2017).
    DOI: 10.1126/science.aan0202

  • Covalent Organic Frameworks: A Materials Platform for Structural and Functional Designs
    Ning Huang, Ping Wang, and Donglin Jiang*
    Nature Reviews Materials 1, 16068 (2016).
    DOI: 10.1038/natrevmats.2016.68

  • Multiple-Component Covalent Organic Frameworks
    Ning Huang, Lipeng Zhai, Damien E. Coupry, Matthew A. Addicoat, Keiko Okushita, Katsuyuki Nishimura, Thomas Heine, and Donglin Jiang*
    Nature Communications 7, 12325 (2016).
    DOI: 10.1038/ncomms12325

  • Proton Conductions in Crystalline and Porous Covalent Organic Frameworks
    Hong Xu, Shanshan Tao, and Donglin Jiang*
    Nature Materials 15, 722-727 (2016).
    DOI: 10.1038/NMAT4461

  • Stable, Crystalline, Porous, Covalent Organic Frameworks as A Platform for Chiral Organocatalysts
    Hong Xu, Jia Gao, and Donglin Jiang*
    Nature Chemistry, 7, 905-912 (2015).
    DOI: 10.1038/NCHEM2352

  • Rational Design of Crystalline Supermicroporous Covalent Organic Frameworks with Triangular Topologies
    Sasanka Dalapati, Matthew Addicoat, Shangbin Jin, Tsuneaki Sakurai, Jia Gao, Hong Xu, Stephan Irle, Shu Seki, and Donglin Jiang*
    Nature Communications, 6, 7786 (2015).
    DOI: 10.1038/ncomms8786.

  • Covalent Organic Frameworks: Crossing the Channel
    Hong Xu and Donglin Jiang*
    Nature Chemistry 6, 564-566 (2014).

  • Conjugated Organic Framework with Three-Dimensionally Ordered Stable Polymer with 
    Delocalized π Clouds
    Jia Guo, Yanhong Xu, Shangbin Jin, Long Chen, Toshihiko Kaji, Yoshihito Honsho, Matthew A. Addicoat, Jangbae Ki, Akinori Saeki, Hyotcherl Ihee, Shu Seki, Stephan Irle, Masahiro Hiramoto, Jia Gao, and Donglin Jiang*
    Nature Commun. 4: 2736 doi: 10.1038/ncomms3736 (2013).

  • Pore Surface Engineering in Covalent Organic Frameworks
    Atsushi Nagai, Zhaoqi Guo, Xiao Feng, Shangbin Jin, Xiong Chen, Xuesong Ding, and Donglin Jiang*
    Nature Commun. 2:536 doi: 10.1038/ncomms1542 (2011).

  • Covalent Organic Frameworks
    Xiao Feng, Xuesong Ding, and Donglin Jiang*
    Chem. Soc. Rev. 41, 6010-6022 (2012).

  • Ionic Covalent Organic Frameworks: Design of a Charged Interface Aligned on 1D Channel Walls and Its Unusual Electrostatic Functions
    Ning Huang, Ping Wang, Matthew A. Addicoat, Thomas Heine, and Donglin Jiang*
    Angew. Chem. Int. Ed. 56, 4982-4986 (2017).
    DOI: 10.1002/anie.201611542

  • Stable Covalent Organic Frameworks for Exceptional Mercury Removal from Aqueous Solutions
    Ning Huang, Lipeng Zhai, Hong Xu, and Donglin Jiang*
    J. Am. Chem. Soc. 139, 2428-2434 (2017).
    DOI: 10.1021/jacs.6b12328

  • Highly Emissive Covalent Organic Frameworks
    Sasanka Dalapati, Enquan Jin, Matthew Addicoat, Thomas Heine, and Donglin Jiang*
    J. Am. Chem. Soc.138, 5797-5800 (2016).
    DOI: 10.1021/jacs.6b02700

  • Porous Organic Polymers with Tunable Work Functions and Selective Hole and Electron Conductions for Energy Conversions
    Cheng Gu, Ning Huang, Youchun Chen, Huanhuan Zhang, Shitong Zhang, Fenghong Li, Yuguang Ma, and Donglin Jiang*
    Angew. Chem., Int. Ed. 55, 3049-3053 (2016).
    DOI: 10.1002/anie.201510723

  • π-Conjugated Microporous Polymer Films: Designed Synthesis, Conducting Properties and Photoenergy Conversions
    Cheng Gu, Ning Huang, Youchun Chen, Leiqiang Qin, Hong Xu, Shitong Zhang, Fenghong Li, Yuguang Ma, and Donglin Jiang*
    Angew. Chem., Int. Ed. 54, 13594-13598 (2015). (Hot Paper)
    DOI: 10.1002/anie.201506570

  • Tailor-Made Pore Surface Engineering in Covalent Organic Frameworks: Systematic Functionalization for Performance Screening
    Ning Huang, Rajamani Krishna, and Donglin Jiang*
    J. Am. Chem. Soc. 137, 7079-7082 (2015).
    DOI: 10.1021/ja5b04300

  • Creation of Superheterojunction Polymers via Direct Polycondensation: Segregated and Bicontinuous Donor-Acceptor π-Columnar Arrays in Covalent Organic Frameworks for Long-Lived Charge Separation
    Shangbin Jin, Mustafa Supur, Matthew Addicoat, Ko Furukawa, Long Chen, Toshikazu Nakamura, Shunichi Fukuzumi,* Stephan Irle,* and Donglin Jiang*
    J. Am. Chem. Soc. 137, 7817-7828 (2015).
    DOI: 10.1021/ja5b03553

  • A Photoresponsive Smart Covalent Organic Framework
    Ning Huang, Xuesong Ding, Jangbae Kim, Hyotcherl Ihee, and Donglin Jiang*
    Angew. Chem., Int. Ed. 54, 8704-8707 (2015). (VIP)
    DOI: 10.1002/anie.201503902

  • Radical Covalent Organic Frameworks: A General Strategy to Immobilize Open-Accessible Polyradicals and High-Performance Capacitive Energy Storage
    Fei Xu , Hong Xu, Xiong Chen, Dingcai Wu, Yang Wu, Hao Liu, Cheng Gu, Ruowen Fu, and Donglin Jiang*
    Angew. Chem., Int. Ed. 54, 6814-1818 (2015).
    DOI: 10.1002/anie.201501706

  • Locking Covalent Organic Frameworks with Hydrogen Bonds: General and Remarkable Effects on Crystalline Structure, Physical Properties, and Photochemical Activities
    Xiong Chen, Matthew Addicoat, Enquan Jin, Lipeng Zhai, Hong Xu, Ning Huang, Zhaoqi Guo, Lili Liu, Stephan Irle, and Donglin Jiang*
    J. Am. Chem. Soc. 137, 3241-3247 (2015).
    DOI: 10.1021/ja509602c

  • Two-Dimensional Covalent Organic Frameworks for Carbon Dioxide Capture via Channel-Wall Functionalization
    Ning Huang, Xiong Chen, Rajamani Krishna, and Donglin Jiang*
    Angew. Chem., Int. Ed. 54, 2986-2990 (2015).
    DOI: 10.1002/anie.201411262 (2015).