Skip to main content
Skip to main menu


Ladderizing Functional Organic pi-Systems

Prof. Lei Fang
Prof. Lei Fang
Department of Chemistry
Texas A&M University
Chemistry Building, Room 400
Organic Seminar

The main research focus of the Fang group is conjugated ladder molecules and macromolecules, in which the entire molecular backbone is fused and π-conjugated. The structures of these ladder-type systems mimic the constitution of graphene nanoribbons, endowing them with promising electronic, optical, and mechanical properties. These unique fused-ring constitutions, however, also impose formidable synthetic and processing challenges on the development and application of ladder polymers. To resolve this dilemma, we aimed to integrate the synthetic versatility and processability of conventional synthetic polymers with the seemingly incompatible features of rigid ladder polymers, through innovative fundamental chemistry and molecular engineering approaches. These strategies include the formation of dynamic covalent bonds, the installation and cleavage of labile function-masking groups, and the employment of non-covalent intramolecular interactions. Through these approaches, we have achieved the efficient synthesis and property investigation of defect-free, benzo[k]tetraphene-derived ladder oligomers and polymers, solution-processing and application of solvent resistant quinacridone-derived ladder polymers, boron-nitrogen coordinate bond-bridged ladder type small molecules, as well as the synthesis and gas storage application of porous ladder polymer networks. Development of these new chemistries enabled the applications of ladder type organic materials on multiple fronts.

Support Us

We appreciate your financial support. Your gift is important to us and helps support critical opportunities for students and faculty alike, including lectures, travel support, and any number of educational events that augment the classroom experience. Click here to learn more about giving.

Every dollar given has a direct impact upon our students and faculty.

Got More Questions?

Undergraduate inquiries: 

Registration and credit

AP Credit, Section Changes, Overrides,

Graduate inquiries:

Contact Us!

Assistant to the Department Head: Donna Spotts, 706-542-1919 

Main office phone: 706-542-1919 

Fax: 706-542-9454

Head of the Department: Prof. Gary Douberly