2026-09-22T21:33:02Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/733892022-01-13T07:54:21Zcom_1721.1_7582com_1721.1_7581col_1721.1_131024
Stephen J. Lippard.
Hope, Jennifer M
Massachusetts Institute of Technology. Dept. of Chemistry.
Massachusetts Institute of Technology. Department of Chemistry
2012-09-27T15:28:04Z
2012-09-27T15:28:04Z
2012
2012
http://hdl.handle.net/1721.1/73389
809805015
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Chemistry, 2012.
Cataloged from PDF version of thesis.
Includes bibliographical references (p. 55-56).
A monoanionic, tetradentate [beta]-diketiminate (BDI) ligand with pendant quinoline arms, BDIQQH was coordinated to Pt(II) to yield the square-planar complex [Pt(BDIQQ)]CI. This complex was characterized by NMR spectroscopy, ESI-MS, FTIR spectroscopy, UVVisible absorbance spectroscopy, and cyclic voltammetry. Computational studies, including geometry optimizations and frequency calculations, were carried out to further analyze the electronic structures of the complexes. In addition, the DNA-binding properties of the complexes were evaluated by UV-Vis titrations and an ethidium-bromide displacement assay. Our results indicate that the compounds interact with DNA, although the mode of interaction is still ambiguous. Fluorescence studies were also performed to investigate the interaction of the complex with bovine serum albumin (BSA) as a model protein. Finally, cytotoxicity data were obtained in a small panel of cell lines using the MTT assay. The complex has a toxicity comparable to or higher than that of cisplatin in the lines tested.
by Jennifer M. Hope.
S.B.
56 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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http://dspace.mit.edu/handle/1721.1/7582
Chemistry.
Physical and biological properties of a Pt(ll) complex of a beta-diketiminate ligand with pendant quinoline arms
Thesis
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Publication
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<Abstract>A monoanionic, tetradentate [beta]-diketiminate (BDI) ligand with pendant quinoline arms, BDIQQH was coordinated to Pt(II) to yield the square-planar complex [Pt(BDIQQ)]CI. This complex was characterized by NMR spectroscopy, ESI-MS, FTIR spectroscopy, UVVisible absorbance spectroscopy, and cyclic voltammetry. Computational studies, including geometry optimizations and frequency calculations, were carried out to further analyze the electronic structures of the complexes. In addition, the DNA-binding properties of the complexes were evaluated by UV-Vis titrations and an ethidium-bromide displacement assay. Our results indicate that the compounds interact with DNA, although the mode of interaction is still ambiguous. Fluorescence studies were also performed to investigate the interaction of the complex with bovine serum albumin (BSA) as a model protein. Finally, cytotoxicity data were obtained in a small panel of cell lines using the MTT assay. The complex has a toxicity comparable to or higher than that of cisplatin in the lines tested.</Abstract>
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