Fengfeng Guo was born in 1986 and grew up in Nantong, China. He studied chemistry as an undergraduate at University of Science and Technology of China. After a short research experience in the Institute of Chemistry, Chinese Academy of Science in the summer of 2007, he decided to take chemistry as his future. He received his BS degree in 2008, and then he started his Ph.D. study at the same university, working with Professor Zhiyong Wang on Lewis acids catalyzed asymmetric Friedel-Crafts alkylation reactions. In 2011, Fengfeng was awarded a scholarship from China Scholarship Council which enabled him to have a chance to study abroad. To pursue top research training and meet these awesome chemistry guys, he joined the Hartwig group as a Visiting Graduate Student Researcher. He is currently working on copper catalyzed coupling reactions. In his spare time, Fengfeng enjoys cooking, playing badminton and watching movies.

Sina Zucker was born in Berlin in 1985 and grew up in a small village nearby Berlin, Germany. After high school, she went to Flensburg and did a professional training as Chemical Laboratory Assistant from 2004-2007. Upon graduation, she decided to go back to Berlin and started with her Bachelor's degree at Freie Universität Berlin in 2007. With the graduation project "Preparation and Investigation of Polyglycerol-Amino-Conjugates" in the Tzschucke group, she completed her research project and received a B.Sc. degree in 2010. Subsequently, she pursued her Master's degree at the same university and worked on several research projects, such as "The Preparation of Nanoscaled Coordination Polymers by the Inverse Miniemulsion Approach" (Tzschucke group) and "De-Novo Synthesis of an Enatiopure Disaccharide Mimetic by Olefin Metathesis" (Reißig group). She also worked at Parexel International GmbH as a Laboratory Assistant. During her studies, she became fascinated on the transition metal-catalyzed reactions and would like to focus her future research career on the development of catalysts that are able to make difficult substrates accessible for synthetically important transformations. She joined the Hartwig group in March 2012 and is currently working on the field of direct arylations of arenes involving C-H activations. Outside the lab, she enjoys reading books, cooking and meeting friends and family.