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Jeffrey D. Zubkowski, Ph.D. Professor of Chemistry Associate Dean, Division of Graduate Studies (601)979-2455 jeff.zubkowski@jsums.edu

Education:

Ph.D., Indiana University, 1983

B.S.: University of Pittsburgh, 1979

  Research Interests: Inorganic Chemistry/Crystallography

  Photochromic compounds are those which undergo a reversible color change with light, while thermochromic compounds are ones which change color reversibly as a function of change of temperature. Such color changes are usually quite marked, involving low-energy crystalline phase transitions and concomitant changes in their electronic and magnetic structure as a function of temperature in the case of thermochromic compounds. In the case of photochromic compounds, the display of the phenomenon is also structure-sensitive and involves solid-state islocations, impurities, and lattice defects.  Current work will focus on model systems and precursor materials. This work will evolve from our investigations in "molecular recognition", in that the structure and properties of molecular assemblies may alternatively be discovered or designed taking advantage of hydrogen bonding arrays.

Publications (most recent)

1.      G. Grant, C.G. Brandow, D.F. Galas, J. P. Davis, W.T.Pennington, E.J. Valente and J.D. Zubkowski, "Heteroptic Platinum (II) Complexes with Macrocylic Thioethers and Hailides: Crystal Structure of [Pt(9S3)Cl2], [Pt(9S3)Br2], and [Pt(9S3)I2]",  Polyhedron, 2001, 20, 3333-3342.

2.      G. Grant, I.M. Poullaos, D. F. Galas, D.G. VanDerveer, J.D. Zubkowski and E. J. Valente, "Heteroptic Platinum (II) Complexes with Crown Thioether and Phosphine Ligand I: Crystal Structure of [Pt(9S3)(dppm)](PF6)2  and [Pt(9S3)(PPh3)2](PF6).  2 CH3NO2", Inorganic Chemistry, 2001, 40, 564-567.

3.      M. Brown, J.D. Zubkowski, E.J. Valente, G. Yang, and W.P. Henry, "The Crystal Structure of the bis-tricarbonylchromium Complex of dibenzo[a,e]cyclo-octatetriene: Cr(CO)3 Orientation Controlled by Short C-H...O Hydrogen Bonding", Journal of Organometallic Chemistry, 2000, 613, 111-118.

4.      J.E. Cortex-Figueroa, M.S. Leon-Velazquez, J. Ramos, J.P. Jasinski, D.A. Keene, J.D. Zubkowski and E.  J. Valente, "cis-Tetracarbonylbis(tricyclohexylphosphine)-molybdenum(0) and pentacarbonyl(tricyclohexylphosphine)-molybdenum(0)".  Acta Crystallogra. Section C, 2000, C56, 1435-1437.

5.      T. Ren, C. Lin, E. J. Valente and J.D. Zubkowski, "The Influence of Remote Substituent in tetrakis(µ-N,N'-diarylformaidinato)-dirhodium(II) Compounds. Part 7.  Linear Free Energy Relationships in Dinuclear Compounds", Inorganica Chimica Acta, 2000, 283, 283-290.

6.      J.L. Eglin, L. T Smith, R.J. Staples, E. J. Valente, J.D. Zubkowski, "Synthesis, Characterization, and X-ray Crystallography of a Series of Ditungsten Complexes with bis(diphenylphosphino) amine", Journal of Organometallic Chemistry, 2000, 596, 136-143.