Dichtel, an associate professor in the Department of Chemistry and Chemical Biology at Cornell University, has made continuous use of CHESS over the past few years to aid his group’s studies of covalent organic frameworks (COFs). The group regularly relies on the G2 station at CHESS to characterize the crystalline and orientational order of different COFs and under different conditions [1-3], including different substrates such as single-layer graphene. Those results have contributed to the group’s development of COFs for various applications, such as vapor detection [4]. CHESS highlighted his work on “Organic Crystals Made to Order” a few years ago http://news.chess.cornell.edu/articles/2011/WollOrganic.html, summarizing his group’s publication in Science Magazine of work using grazing incidence x-ray diffraction measurements (figure), performed at the G2 station at CHESS, show that the layers are stacked perpendicular to the substrate surface.
References:
[1] John W. Colson, Arthur R. Woll, Arnab Mukherjee, Mark P. Levendorf, Eric L. Spitler, Virgil B. Shields, Michael G. Spencer, Jiwoong Park, William R. Dichtel, "Oriented 2D Covalent Organic Framework Thin Films on Single-Layer Graphene," Science 332, 228 (2011), DOI: 10.1126/science.1202747
[2] Spitler EL, Colson JW, Uribe-Romo FJ, Woll AR, Giovino MR, Saldivar A, Dichtel WR, "Lattice Expansion of Highly Oriented 2D Phthalocyanine Covalent Organic Framework Films," Angewandte Chemie, PMID:22223402 124(11), 2677-2681 (2012).
[3] Colson JW, Mann JA, DeBlase CR, Dichtel WR, "Patterned Growth of Oriented 2D Covalent Organic Framework Thin Films on Single-Layer Graphene," JOURNAL OF POLYMER SCIENCE 53(2), 378-384 (2014).
[4] Gopalakrishnan D and Dichtel WR, "Direct Detection of RDX Vapor Using a Conjugated Polymer Network," J. Am. Chem. Soc. 135(22), 8357-8362 (2013).
Read the Cornell Chronicle article here:
http://www.news.cornell.edu/stories/2015/09/chemist-will-dichtel-earns-macarthur-genius-award or PDF