Chemistry Faculty/Staff Directory
Dr. Radu F. Semeniuc
Assistant Professor - Inorganic Chemistry
Office: 3440 - Physical Science Bldg
Phone: 217-581-5422
Email: rsemeniuc@eiu.edu
Frequently Taught Courses
CHM 1310, 1410 - General Chemistry I, IICHM 1415 - General Chemistry II Lab
CHM 2310 – Inorganic Chemistry I
CHM 4900 – Inorganic Chemistry II
CHM 5350 – Organometallic Chemistry
Education
B.S., “Babeş-Bolyai” University (Cluj-Napoca, Romania), 1990Ph.D., “Babeş-Bolyai” University (Cluj-Napoca, Romania), 2001
Ph.D., University of South Carolina (Columbia, SC), 2004
EIU, 2007
Research
Molecular Devices and Machines, Crystal Engineering, Supramolecular Organometallic Chemistry.My research interests center in the highly interdisciplinary area of inorganic materials – supramolecular chemistry, in particular the logical organization of solids via both covalent and non-covalent interactions.
One specific research focus is the synthesis and characterization of metal-containing materials, using heterotopic ligands based on the backbone modification of xanthates R-O-C(S)S- and dithiophosphonates RO-(An)-P(S)S- (An = anisole) with pyridine based donor groups. This approach leads to a facile, stepwise synthesis of polynuclear luminescent compounds, such as {[CH3OCH2CH2OP(An)S2]2Ni}[4PyCH2OCS2Re(bipy)(CO)3]2.
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A second research interest lays in the area of mechanically interlocked molecules, especially in the synthesis of Metal – Organic – Rotaxane – Frameworks (MORFs). We have recently been successful in grafting on a central naphthalenediimide (NDI) moiety groups with coordinative properties such as –C(O)O- and –P(S)S-donor sets, and used them in the preparation of new rotaxanes with organometallic groups as stoppers, see below the case of NDI[CH2CH2CH2CO2SnPh3(CH3OH)]2⊂15-DN-38C10 (left) and NDI[CH2CH2OCH2CH2OP(An)S2SnPh3(H2O)]2⊂15-DN-38C10 (right).
![NDI[CH2CH2OCH2CH2OP(An)S2SnPh3(H2O)]2⊂15-DN-38C10](http://eiu.edu/eiuchem/chemistry_staff_directory/Semeniuc_clip_image002_0001.jpg) |
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Publications
Articles:
Semeniuc, Radu F.; Reamer, Thomas J.; Smith, Mark D. "8-Quinoline Based Ligands and Their Metallic Derivatives: A Structural and Statistical Investigation of Quinoline π – π stacking Interactions" New J. Chem.2010, 34, 439-452.
Semeniuc, Radu F.; Reamer, Thomas J.; Blitz, Jonathan P.; Wheeler, Kraig A.; Smith, Mark D. "Functionalized O-Alkyldithiocarbonates: A New Class of Ligands Designed for Luminescent Heterometallic Materials" Inorg. Chem. 2010, 49, 2624-2629.
Reger, Daniel L.; Semeniuc, Radu F.; Smith, Mark D. “Supramolecular networks of Silver(I) and Iron(II) Complexes of the Third Generation Tris(pyrazolyl)methane Ligand Ph2(O)POCH2C(pz)3 (pz = pyrazolyl ring)”Dalton Trans. 2008, 2253-2260.
Campian, M. V.; Haiduc, I.; Semeniuc, R. F. “[1,4-Bis(diphenylphosphino)butane-μ2P,P']-(dithiocarbonato-μ2S,S')nickel(II)” Acta Cryst., E 2007, E63, m2168.
Reger, Daniel L.; Semeniuc, Radu F.; Elgin, J. Derek; Rassolov, Vitaly; Smith, Mark D. “The 1,8-Naphthalimide Synthon in Silver Coordination Chemistry: Control of Supramolecular Arrangement” Cryst. Growth Des. 2006, 6, 2758 – 2768.
Reger, Daniel L.; Semeniuc, Radu F.; Little, Christine A.; Smith, Mark D. “Crystal Retro-Engineering: Structural Impact on Silver(I) Complexes with Changing Complexity of Tris(pyrazolyl)methane Ligands”Inorg. Chem. 2006, 45, 7758-7769.
Reger, Daniel L.; Semeniuc, Radu F.; Gardinier, James R.; O'Neal, Jennifer; Reinecke, Bryn; Smith, Mark D. “New N,N,N-Heteroscorpionates Based on 2,2'-Bis(pyrazolyl)ethanamine and Its Derivatives. Ligands Designed for Probing Supramolecular Interactions” Inorg. Chem. 2006, 45, 4337-4339.
Reger, Daniel L.; Elgin, J. Derek; Semeniuc, Radu F.; Pellechia, Perry J.; Smith, Mark D. “Directional control of π-stacked building blocks for crystal engineering: the 1,8-naphthalimide synthon” Chem. Commun. 2005, 4068-4070.
Reger, Daniel L.; Semeniuc, Radu F.; Rassolov, Vitaly; Smith, Mark D. “Supramolecular Structural Variations with Changes in Anion and Solvent in Silver(I) Complexes of a Semi-rigid, Bitopic Tris(pyrazolyl)methane Ligand” Inorg. Chem. 2004, 43, 537-554.
Reger, Daniel L.; Semeniuc, Radu F.; Smith, Mark D. “Synthesis of Open and Closed Metallacages Using Novel Tripodal Ligands: Unusually Stable Silver(I) Inclusion Compound” Inorg. Chem. 2003, 42, 8137-8139.
Chapters in Scientific Books
Reger, Daniel L.; Semeniuc, Radu F.; Gardinier, James R.; Brown, Kenneth J.; Smith, Mark D. “Pyrazolyl Embrace as a Supramolecular Synthon: Case Study of Metal Carbonyl Complexes Containing Linked Tris(pyrazolyl)methane Ligands” in “Functional Nanomaterials”, eds. Geckeler, Kurt E. and Rosenberg, Edward, American Scientific Publishers, 2006, pages 411-424.
