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Mark Heitz

Mark P. Heitz, Ph.D.

(585) 395-5586
Office:  228 Smith Hall

Research Focus/Specialization

  • Physical/Analytical Chemistry


  • Ph.D., SUNY Buffalo; Research Advisor: Frank V. Bright
  • Postdoctoral Research, Penn State; Research Advisor: Mark Maroncelli


  • Fellow of the American Chemical Society

Research Interests

Our group is interested in the process of molecular solvation and how this process affects solution chemistry. The development of a molecular-level understanding of the equilibrium and non-equilibrium aspects of solvation are the focus of our attention. Research efforts have included determining liquid state dynamics in chemical systems including the 1) response of hydrophiles to entrapment within microheterogeneous media (e.g., reverse micelles); 2) conformational changes that occur in proteins, both in bulk solution and at liquid/micelle interfaces; and 3) application of supercritical fluid technology (supercritical carbon dioxide) toward green solvent development. Most recently, we have been interested in the solvation behavior of a model chromophore, coumarin 153, in room-temperature ionic liquids and mixed ionic liquid/cosolvent systems. We use electronic spectroscopic techniques as the primary means of studying solvation, which includes static and dynamic (ps, TCSPC) fluorescence spectroscopies. In addition, emission spectroscopic information is augmented by computational chemistry methods, and ultrafast transient absorption spectroscopy.

Recently Taught

  • CHM 205 - General Chemistry I and Lab
  • CHM 303 - Analyitical Chemistry I (Quantitative Analysis)
  • CHM 400 - Seminar I
  • CHM 401 - Seminar II
  • CHM 405/408 - Physical Chemistry I (Quantum Mechanics)
  • CHM 406/409 - Physical Chemistry II (Thermodynamics & Kinetics)
  • CHM 417 - Computational Chemistry

Selected Recent Publications

  • Mark P. Heitz, Jason W. Rupp, and Kim W. Horn, “Biocatalytic Activity of Mushroom Tyrosinase in Ionic Liquids: Specific Ion Effects and the Hofmeister Series”, Insights Enzyme Res., 2018, 2(1):12, 1-9. DOI: 10.21767/2573-4466.100012.

  • Jason W. Rupp, and Mark P. Heitz, “Determining Mushroom Tyrosinase Inhibition by Imidazolium Ionic Liquids: A Spectroscopic and Molecular Docking Study”, Int. J. Biol. Macromol., 2018, 107 Part B, 1971-1981. DOI: 10.1016/j.ijbiomac.2017.10.066.

  • Kaitlyn A. Ordiway, Kristina L. Fuller, Peter C. Apps, and Mark P. Heitz, “Dissolution of Trihexyltetradecylphosphonium Chloride in Supercritical CO2”, Chem. Eng., 2017, 1(2), 12-29. DOI: 10.3390/chemengineering1020012

  • Zachery P. McAtee, and Mark P. Heitz, “Density, Viscosity and Excess Properties in the Trihexyltetradecylphosphonium Chloride Ionic Liquid/Methanol Cosolvent System”, J. Chem. Thermodyn., 2016, 93, 34-44. DOI:10.1016/j.jct.2015.09.030.

  • Kathleen M. Barra, Randy P. Sabatini, Zachery P. McAtee, Mark P Heitz, Solvation and Rotation Dynamics in the Trihexyl(tetradecyl)phosphonium Chloride Ionic Liquid / Methanol Co-Solvent System, J. Phys. Chem. B., 2014, 118(45), 12979-12992. DOI: 10.1021/jp5092784.
  • N. Ito, S. Arzhantsev, M. Heitz, and M. Maroncelli*, “Solvation Dynamics of Coumarin 153 in Alkylphosphonium Ionic Liquids” , J. Phys. Chem. B., 2004 , 108, 5771-5777. DOI: 10.1021/jp0499575.
  • S. Arzhantsev, N. Ito, M. Heitz, and M. Maroncelli*, “Solvation Dynamics of Coumarin 153 in Several Classes of Ionic Liquids: Cation Dependence of the Ultrafast Component”, Chem. Phys. Lett. 2003 , 381, 278-286. DOI: 10.1016/j.cplett.2003.09.131.

Last Updated 10/27/20

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