Ph.D. Program in Chemistry Dissertation Defense Mr. Yan Sun “Study of Reaction Dynamics of Protonated/Deprotonated and Radical Cations of Guanine in Nucleobases and Nucleosides: Single O2 Oxidation, C8-Water Addition, Cross-Linking with Lysine and Base-Pair Dissociation” Mentor: Prof. Jianbo Liu Queens College, CUNY Wednesday, September 25th, 2019 @ 3:00 p.m Queens College, CUNY Remsen Hall, Room 209

Ph.D. Program in Chemistry Dissertation Defense Mr. Gan Zhang “Bisthioether Stapled Peptides Targeting Polycomb Repressive Complex 2 Gene Repression” Mentor: Prof. Guillermo Gerona-Navarro Brooklyn College, CUNY Thursday, December 18th, 2018 @ 12:30 p.m Brooklyn College, CUNY Ingersoll Hall Extension, Room 432

Ph.D. Program in Chemistry Dissertation Defense Ms. Xionmiao Zhang “Potential Degradation of Hexabromocyclododecane (HBCDD) in Sediments: Stereoisomer Specific Reaction of HBCDD with Reduced Sulfur Species of Fe(ll) Bound to Iron Oxides” Mentor: Prof. Urs Jans The City College of New York, CUNY Friday, December 7th, 2018 @ 2:00 p.m The City College of New York, CUNY