Faculty

Sergiy Kryatov

Department of Chemistry
Pearson Chemistry Laboratory
62 Talbot Avenue
Tufts University 
Medford, MA 02155 

Office: X-003

Tel: 617-627-2443  Fax: 617-627-3443

E-mail: Sergiy.Kryatov@tufts.edu

Current Appointment

Senior Lecturer in Chemistry, Department of Chemistry

Education

Ph.D., 1997, Institute of Physical Chemistry, Ukrainian Academy of Sciences, Kiev
B.S./M.S., 1991, Kiev State University, Ukraine

Research Interests

Inorganic Chemistry.  Dr. Kryatov's research interests have been in the analytical applications of coordination compounds. His research has been involved with reactions of a series of metal aminopolycarboxylates ML (M = Co, Ni, Cu, Zn; L = NTA, EDTA) with volatile amines A (NH₃, N₂H₄) in solution and in solid/gas systems. These reactions have been used to determine the composition and structure of the resulting heteroligand complexes MLA by spectroscopic and other means in aqueous solution, solid amorphous state, and solid crystalline state. He has also performed quantitative studies on the reactions of solid ML with gaseous A to yield solid MLA using the piezo-acoustic microbalance technique, which allowed for the analytical determination of the amine vapor in air. In collaboration with Prof. Rybak-Akimova at Tufts, Dr. Kryatov has also done experimental research in inorganic chemistry, bioinorganic modeling chemistry, coordination chemistry, specifically, the use of dinuclear metallocomplexes as bioinorganic models, mechanisms of oxygen and peroxide activation at metal centers, kinetic and mechanistic studies of biomimetic complexes, and activation of nitrous oxide by molybdenum complexes.

Selected Recent Publications

"Dioxygen activation at non-heme iron: Insights from rapid kinetic studies", I. V. Korendovych, S. V. Kryatov, and E. V. Rybak-Akimova, Acc. Chem. Res., 2007, 40, 510-521.

"Proton-directed redox control of O-O bond activation by heme hydroperoxidase models", J. D. Soper, S. V. Kryatov, E. V. Rybak-Akimova, and D. G. Nocera, J. Am. Chem. Soc., 2007, 129, 5069-5075.

"Diiron(III) oxo-bridged complexes with BPMEN and additional monodentate or bidentate ligands: Synthesis and reactivity in olefin epoxidation with H₂O₂", S. Taktak, S. V. Kryatov, T. E. Haas, and E. V. Rybak-Akimova, J. Mol. Catal. A, 2006, 259, 24-34.

"Kinetics and Mechanisms of Formation and Reactivity of Non-heme Iron Oxygen Intermediates', S. V. Kryatov, E. V. Rybak-Akimova, and S. Schindler, Chem. Rev., 2005, 105, 2175-2226

"Dioxygen Binding to Complexes with FeII₂(m-OH)₂ Cores: Steric Control of Activation Barriers and O₂-Adduct Formation", S. V. Kryatov, S. Taktak, I. V. Korendovych, E. V. Rybak-Akimova, J. Kaizer, S. Torelli, X. Shan, S. Mandal, V. L. MacMurdo, A. Mairata-Payeras, and L. Que, Inorg. Chem., 2005, 44, 85-99.

"Mechanistic Studies on the Formation and Reactivity of Dioxygen Adducts of Diiron Complexes Supported by Sterically Hindered Carboxylates', S. V. Kryatov, F. A. Chavez, A. M. Reynolds, E. V.  Rybak-Akimova, L. Que, and W. B. Tolman, Inorg. Chem., 2004, 43, 2141-2150.