个人简介

2002-present Professor, University of Notre Dame 1999-2002t Associate Professor, University of Notre Dame 1995-1999 Assistant Professor, University of Notre Dame 1993-1995 Postdoctoral Research Associate, University of Chicago 1993 Ph.D. in Chemistry, Iowa State University 1985 M.Sc. in Chemistry, University of Sofia, Bulgaria 1983 B.S. in Chemistry, University of Sofia, Bulgaria Award: 1999 The Exxon-Mobil Faculty Award in Solid State Chemistry 1995 Camille and Henry Dreyfus New Faculty Award

研究领域

Inorganic Chemistry

Chemistry of Main-Group Metals and Semimetals in Negative Oxidation States The heavier members of Groups 14 and 15, both metals and semimetals, are known for their chemistry in various positive oxidation states. What we are interested in is how they behave when forced to accept electrons and become negatively charged, i.e. when in negative oxidation states. It turns out that such atoms tend to cluster together and form: nine-atom deltahedral clusters E94- for Si, Ge, Sn, and Pb; seven-atom species E73- for P, As, and Sb; etc. We have studied extensively the reactivity of Ge94- towards various reagents and have found, to our and many other people’s surprise, that they can be readily functionalized with various groups and form [R-Ge9-R]2- and [Ge9-R]3- for R = alkyl, alkenyl, main-group and transition-metal organometallic fragments, etc. Furthermore, they can oligo- and poly-merize to form dimers trimers, tetramers, and infinite chains, for example [Ge9-Ge9]6-, [Ge9=Ge9=Ge9]6-, and [-(Ge92-)-], and they can be centered by transition-metal atoms. The bismuth fragments, on the other hand, can react with various organometallic compounds and form mixed main-group/transition-metal clusters such as [Bi3Mo2(CO)6]3-, [Bi3Ni4(CO)6]3-, [Bi4Ni4(CO)6]2-, [Bi3Ni6(CO)9]3-, and the Ni-centered [Ni@{Bi6Ni6(CO)8}]4-. Hydrothermal Exploratory Synthesis of Hybrid Organic-Inorganic Materials with Framework Structures We are interested in compounds with open-framework structures as well as compounds that contain large multiatomic molecular anions built of transition-metal, borate, and phosphate or phosphonate groups. We have synthesized the first such open-framework borophosphate, CoB2P3O12(OH)•en where ethylenediamine (en) is the organic template, and the first borophosphate templated by a transition-metal complex, [Co(en)3][B2P3O11(OH)2]. Also, we have synthesized the first large borophosphate polyoxometalate, [MoV5MoVI7O30(BPO4)2(PO4)3(HPO4)3]8- and its phenyl-functionalized version [MoV5MoVI7O30(BPO4)2(Ph-PO4)6]5-. Other systems of interest include extended frameworks made of transition-metal centers connected by organic linkers with two or more functional groups such as di-phosphonates, carboxylate-phosphonates, boronate-phosphonates, carboxylate-boronates, etc.

近期论文

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Functionalization of Nine-Atom Deltahedral Zintl Ions with Organic Substituents: Detailed Studies of the Reactions, Michael W. Hull and Slavi C. Sevov J. Am. Chem. Soc. 2009, 131, 9026 Link "n-Doping" of Deltahedral Zintl Ions, Miriam M. Gillett-Kunnath, Allen G. Oliver, and Slavi C. Sevov J. Am. Chem. Soc. 2011, 133, 6560 Link Isolated Co15 Clusters and Their Assembly into a 3D Network: Conformation-Directed Synthesis Gu, Z-G.; Sevov, S.C. Inorg. Chem. 2009, 48, 8066 Link Addition of a Thallium Vertex to Empty and Centered Nine-Atom Deltahedral Zintl Ions of Germanium and Tin, Daniel Rios, Miriam M. Gillett-Kunnath, Jacob D. Taylor, Allen G. Oliver, and Slavi C. Sevov Inorg. Chem. 2011, 50, 2373 Link The Elusive closo-Ge102- Zintl Ion: Finally "Captured" as a Ligand in the Complex [Ge10Mn(CO)4]3-, Daniel Rios and Slavi C. Sevov Inorg. Chem. 2010, 49, 6396 Link Heteroatomic Deltahedral Zintl Ions of Group 14 and their Alkenylation, Miriam M. Gillett-Kunnath, Ivaylo Petrov, and Slavi C. Sevov Inorg. Chem. 2010, 49, 721 Link