Marina Petrukhina

Research Group


Member Profiles | Undergraduate Research Opportunities | Collaborations |
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Introduction


Undergraduate research opportunities that are within the scope of our current interests are available for students to carry out independent research projects. Generally, research projects are in the chemical sciences with the emphasis in inorganic, organometallic, supramolecular and materials chemistry. Students can register for ACHM425 (2 credit hours), ACHM426 (3 credit hours), or ACHM495 (3 credit hours). These opportunities are highly competitive and intended for students interested in research and considering scientific careers. For more information, please see the links on the right.


Playing with buckybowls


Since the discovery of fullerenes, the bowl-shaped geodesic polyaromatic molecules that map the surface of C60 have attracted considerable attention of the scientific community. These "fullerene fragments" or buckybowls represent an exciting new class of aromatic ligands that are expected to show novel and unique chemistry. The reactivity of buckybowls in metal coordination reactions is a brand new area of organometallic research. We have recently prepared the first crystalline complexes of the smallest bowl-shaped aromatic hydrocarbon, corannulene C20H10.1Currently large buckybowls, such as C30H12 that represents the symmetrical half of C60, are under investigation in our laboratory.

  1. M. A. Petrukhina, K. W. Andreini, J. Mack, L. T. Scott. Angew. Chem., Int. Ed. Engl. 2003, 42, 3375.

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Solventless Synthesis as an Alternative Approach to Perform Chemical Reactions


We have recently introduced a novel micro-scale synthetic approach that is based on the co-deposition of complementary building blocks in a solvent-free environment. We have proved it to be a very effective and economical route as it affords crystalline products in one step, excludes solvents from reactions, requires very small amounts of starting materials, and allows one to control the stoichiometry of the products. We apply this technique to prepare new hybrid inorganic materials,1 to trap reactive intermediates,2 and to test reactivity of new ligands of natural and synthetic origin.3 We believe this unique technique holds great potential and merits further development.

  1. E.V. Dikarev, K.W. Andreini, M.A. Petrukhina. Inorg. Chem, 2004, in press.
  2. M.A. Petrukhina, K.W. Andreini, A.M. Walji, H.M.L. Davies. J. Chem. Soc. Dalton Trans. 2003, 4221.
  3. E.V. Dikarev, R. Becker, E. Block, C. Haltiwanger, M.A. Petrukhina. Inorg. Chem. 2003, 42, 7098.

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Synthesis and Optical Properties of Quantum Dots


Colloidal semiconductor quantum dots (QDs) are nanoparticles or nanocrystals of less than 10-15 nm in diameter. The high surface/volume ratio of QDs results in unique optical and electronic properties that are intermediate between single molecules and bulk solid-state. The strong size- and shape-dependency of QDs properties makes them ideal candidates for optical devices, biological tagging materials, photovoltaics and lasers. One of the most common methods of synthesis of colloidal QDs is chemical attachment of various ligands to the surface atoms of the nanocrystals. This chemical modification of the QD surface allows us to control aggregation, to tune solubility, to anchor QDs into various solid supports for further study and practical usage.1

  1. Surface Functionalization of CdSe Quantum Dots for Environmental Sensing. Z. Zhao, G. Sirinakis, Y. Sevryugina, M. Carpenter, M. A. Petrukhina. 226th National Meeting of the ACS, NY, Sept 7, 2003, paper INOR-100.

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