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Vicki Soghomonian

Assoc Professor AY
vicki
Department of Physics (MC 0435)
311 Robeson Hall
850 West Campus Drive
Blacksburg VA 24061

Field of Research: Experimental Condensed Matter Physics

Research in the area of experimental solid state phsyics and chemistry.
Areas of reseach include:

  • zeolite-like materials for energy applications
  • hybrid inorganic/organic systems
  • biomolecular systems
  • organic semiconductors

A major thrust in the group is the synthesis and characterization of novel materials, with desired functionality, through various chemical methods. Physical characterization methods ranging from x-ray crystallography to various spectroscopies to provide a structural understanding for the observed electronic properties measured. The overall aim is to correlate synthesis conditions to resulting electrical characteristics - ionic and electronic conductivities- from a fundamental as well as an applied perspective for materials discovery.

Left: SEM image of a single crystal of a zeolite-like electrically conducting material
Middle: structure down a axis with template molecules indicated by ellipses
Right: structure down the 111 direction
AFM image of lambda DNA bundles,
stretched between two Au electrodes on mica.
Image size, 18 x 18 micron, height (min/max) 54 nm.
Electrode gap, 7 micron.
Organic semiconductor deposition
unit utilzed in pentacene
thin film growth
for organic devices.

SEM image of
Vanadium based nanowires,
synthesized by the
hydrothermal route.

Q. Yuan, Y. Zhang, S. Green, E. Ghiana, and V. Soghomonian "Ionic and electronic properties of oxo-vanadium arsenate and phosphate frameworks" Inorganica Chimica Acta, 389, 202 (2012).

V. Soghomonian, Slebodnick, C., and Spencer, E.C., "Re-determination of the structure of an anionic oxo-vanadium arsenate framework" Dalton Transactions V. 39 Iss. 37, 8652-8654 (2010).

V. Soghomonian, J.J. Heremans �Characterization of electrical conductivity in a zeolite-like material�, Applied Physics Letters 95, 152112 (2009).

V. Soghomonian, Q. Chen, R.C. Haushalter, J. Zubieta, C. O'Connor �An Inorganic Double Helix: Hydrothermal Synthesis, Structure and Magnetism of Chiral [(CH3)2NH2]K4[V10O10(H2O)2(OH)4(PO4)7].4H2O�, Science 259, 1596 (1993).

V. Soghomonian, Q. Chen, R.C. Haushalter, J. Zubieta �Vanadium Phosphate Framework Solid Constructed of Octahedra, Square Pyramids and Tetrahedra with a Cavity Diameter of 18.4Ŕ, Angew. Chem. Int. Ed. Engl. 32, 610 (1993).

V. Soghomonian, Q. Chen, R.C. Haushalter, J. Zubieta �Investigations into the Targeted Design of Solids: Hydrothermal Synthesis and Structures of One-, Two-, and Three-Dimensional Phases of the Oxovanadium-Organodiphosphonato System�, Angew. Chem. Int. Ed. Eng. 34, 223 (1995).

V. Soghomonian, Q. Chen, R.C. Haushalter, J. Zubieta, C. O'Connor, Y-S. Lee �Organically Templated Open-Framework Vanadium Phosphates: Hydrothermal Synthesis, Structure and Magnetic Properties of (H3N(CH2)3NH3)[(VO)3(OH)2(H2O)2(PO4)2]�, Chem. Mater. 5, 1690 (1993).

J. Jo, J.J. Heremans, F. Bradbury, H. Chen, V. Soghomonian �Gate tunable electron injection in submicron pentacene transistors�, Nanotechnology 15, 1023 (2004).

B. Hartzell, B. McCord, D. Asare, H. Chen, J.J. Heremans, V. Soghomonian �Comparative current-voltage characteristics of nicked and repaired lambda-DNA�, Applied Physics Letters 82, 4800 (2003).

B. Hartzell, B. McCord, D. Asare, H. Chen, J. J. Heremans, V. Soghomonian �Current-voltage characteristics of diversely disulfide terminated lambda-DNA�, J. Applied Physics 95, 2764 (2003).

V. Soghomonain, M. Sabo, A. Powell, P. Murphy, R. Rosanske, T.A. Cross, H.J. Schneider-Muntau �Identification and minimization of sources of temporal instability in high field (>23 T) resistive magnets�, Rev. Sci. Instrum. 71, 2882 (2000).

V. Soghomonian, M. Cotten, R. Rosanske, T.A. Cross �Field Stabilization and 2H NMR Spectroscopy in a 24.6 T Resistive Magnet�, Journal of Magnetic Resonance 125, 212 (1997).
M. Cotten, V. Soghomonian, W. Hu, T.A. Cross �High Resolution and High Fields in Biological Solid State NMR�, Solid State Nuclear Magnetic Resonance 9, 77 (1997).

V. Soghomonian, R.C. Haushalter, J. Zubieta, C. O'Connor �H2N(CH2CH2)2NH2[(VO)4(H2O)4(HPO4)2(PO4)2]:An Organically Templated Vanadium phosphate with One Dimensional (-V-O=V-O-) chains�, Inorg. Chem. 35, 2826 (1996).

V. Soghomonian, R. Diaz, R.C. Haushalter, C. O'Connor, J. Zubieta �Hydrothermal Synthesis and Crystal Structure of Two Oxovanadium Organodiphosphonate Phases: [(H2N(C2H4)2NH2][(VO)2(O3P(CH2)3PO3)2], a "Stair-Step� Structure Incorporating an Organic Cation Template, and [(VO)(H2O){O3PCH2NH(C2H4)2NHCH2PO3}], a Layered Structure "Pillared" by a Piperazine-Tethered Diphosphonate�, Inorg. Chem. 34, 4460 (1995).

V. Soghomonian, Q. Chen, Y. Zhang, R.C. Haushalter, C. O'Connor, C. Tao, J. Zubieta �Hydrothermal Syntheses and Structural Characterization of Layered Oxovanadium Phosphates Solids Incorporating Organic Cations: [H2N(C4H8)NH2][(VO)4(OH)4(PO4)2], [(NH3C3H6)NH(C2H4)2NH(C3H6NH3)] [(VO)5(OH)2(PO4)4].2H2O, [HN(C2H4)3NH] [(VO)8(HPO4)3(PO4)4(OH)2].2H2O and [HN(C2H4)3NH][(VO)3(OH)2(PO4)2]�, Inorg. Chem. 34, 3509 (1995).

V. Soghomonian, R.C. Haushalter, J. Zubieta �Hydrothermal Synthesis and Structural Characterization of V(III)-Containing Phases of the Vanadium Organodiphosphonate System. Crystal Structures of the V(III) Species (H3O)[V3(O3PCH2CH2PO3)(HO3PCH2CH2PO3H)3] and of the Mixed Valence V(III)/V(IV) Material (H3O)2[(VO)V2(OH)2(O3PCH2PO3)2].H2O�, Chem. Mater. 7, 1648 (1995).

V. Soghomonian, R.C. Haushalter, Q. Chen, J. Zubieta �(H2NC4H8NH2)[(VO)2(PO4)2] and (H2NC4H8NH2)[(VO)3(HPO4)2(PO4)2].H2O: Novel Layered Vanadium Phosphates with Distorted and Defected VOPO4 Layers�, Inorg. Chem. 33, 1700 (1994).

R.C. Haushalter, V. Soghomonian, Q. Chen, J. Zubieta �Hydrothermal Synthesis and Crystal Structure of [Ni(H2O)4][VO(PO4)]2, a Nickel(II) Vanadyl(IV) Phosphate�, J. Solid State Chem., 105, 512 (1993).

V. Soghomonian, Q. Chen, R.C. Haushalter, J. Zubieta �A Square-Pyramidal-Tetrahedral Vanadium Phosphate Framework Solid Incorporating Propanediammonium Dications. The Structural Characterization of (H3N(CH2)3NH3)K[(VO)3(PO4)3]�, Chem. Mater., 1595 (1993).

Funding

  • The National Science Foundation: "Synthesis and Characterization of Zeolite-like mixed conductors" DMR-1206338.
  • The National Science Foundation: EAGER: "Electrically Conducting Zeoate Frameworks: Synthesis, Characterization and Energy Applications" DMR-0943971.
  • The National Science Foundation: NIRT grant "Zeolitic materials for nanoscale electronics and quantum computation"
  • State of Ohio Hayes Investment Fund grant "Ohio nanoscale patterning consortium".