Undergraduate Sishuang Tang, graduate students Anna Yusov, Yuantao Li and Melissa Tan, visiting student Yunhui Hao, and Tony Hu teamed up to demonstrate that ROY, a compound known to form ten polymorphs with red, orange or yellow colors as a consequence of conformational flexibility, can be included in various guanidinium organosulfonate hydrogen-bonded frameworks that limit its conformational twisting out of plane. The publication was included in a special issue dedicated to Nobel Laureate Jean-Marie Lehn on the event of his 80th birthday. Link to the article here.