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Maria L. Parr
Associate Professor of Chemistry
Phone: (860) 297-2212 Office Location: Clement 205
Send e-mail to Maria L. Parr Personal web page
Trinity College faculty member since 1999
General ProfileTeachingResearchPublications/PresentationsHonors/Awards
Ph.D., Yale Univ. (1995)
M.S., Yale Univ. (1992)
B.S., Trinity College (1990)

Professor Parr’s research interests involve the synthesis of metal-oxo and metal-hydride complexes of rhenium and iridium. Metal-oxo complexes are important as oxygen transfer agents, both in a variety of biological systems and in the laboratory.1 The more recent application of rhenium complexes as radiopharmaceutical agents and their role as models for technetium complexes have given rise to a significant area of research.2 Metal hydride complexes play a role in homogeneous catalysis, exhibit novel hydrogen bonding behavior and have unique structural properties.3 The synthesis and characterization of five new rhenium-oxo complexes has been reported4a and  Professor Parr and her students are exploring the utility of these new rhenium-oxo complexes in oxygen transfer reactions and as precursors for metal hydride complexes.4b  The role of wide-bite angle diphosphines as supporting ligands in rhenium and molybdenum complexes is also under investigation.


1. (a) da Silva, J.R.R.F. and Williams, R.J.P. The Biological Chemistry of the Elements. Oxford: Oxford University Press, 1991. (b) Nugent, W.A. and Mayer, J.M. Metal Ligand Multiple Bonds.  New York: John Wiley & Sons, 1986.
2. Dilworth, J.R. and Parrot, S.J. Chem. Soc. Rev., 1998, 27, 43.
3. Bau, R. et al., J. Am. Chem. Soc., 1985, 107, 7212.
4. (a) Parr, M.L.; Faller, J.W.; Perez-Acosta, C., New J. Chem., 2005, 29, 613. (b) Antunes, N.; Perez-Acosta, C.; Chin, J.A.; Gifford, J.C.; Parr, M.L., J. Coord. Chem., 2009, 62, 1051.