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Articles 1 - 4 of 4
Full-Text Articles in Inorganic Chemistry
Photophysical And Photochemical Investigations Of New Tunable Luminescent Metal-Metal Bonded D8-D10 Exciplexes, Howard H. Patterson
Photophysical And Photochemical Investigations Of New Tunable Luminescent Metal-Metal Bonded D8-D10 Exciplexes, Howard H. Patterson
University of Maine Office of Research Administration: Grant Reports
This award in the Inorganic, Bioinorganic and Organometallic Chemistry program supports Dr. Howard Patterson at the University of Maine at Orono to investigate d8-d10 exciplexes exhibiting multiple excimeric emissions that can be tuned across the UV and visible regions by: site-selective excitation, temperature, varying the concentration in solution or the solid state (alkali halide hosts), and/or controlled laser irradiation that leads to reversible write/read/erase changes. Photophysical, photochemical, and computational studies will be performed in order to assess the factors that are important for establishing structure-luminescence relationships in tunable systems. The broad tunability previously observed in d10-d10 complexes will be extended …
Metallophilic Interactions In Closed-Shell Metal-Metal Bonded Luminescent Systems And Their Tunability For Excited State Energy Transfer, Howard H. Patterson
Metallophilic Interactions In Closed-Shell Metal-Metal Bonded Luminescent Systems And Their Tunability For Excited State Energy Transfer, Howard H. Patterson
University of Maine Office of Research Administration: Grant Reports
Howard Patterson, University of Maine, is supported by the Inorganic, Bioinorganic and Organometallic Chemistry Program for photochemical studies of metal-metal bonded excimers and exciplexes. In solution or in the solid state, dicyanoaurate(I) and dicyanoargentate(I) ions oligomerize. The oligomers show complex photochemistry, including luminescence caused by metallophilic interactions. These systems can be tuned over 18,000 wavenumbers by doping or by adding various donor ions. This research project will look in detail at lifetime and time-resolved studies, vibrational analysis by Raman scattering and infrared, structural studies by x-ray and neutron diffraction, and theoretical analyses. The research will provide insight into metallophilic interactions …
U.S.-Russia Cooperative Research: Designing Gold(I) Complexes For New Materials, Alice E. Bruce, Mitchell Bruce, Dmitri Lemenosvsii, Victor Dyadchenko,
U.S.-Russia Cooperative Research: Designing Gold(I) Complexes For New Materials, Alice E. Bruce, Mitchell Bruce, Dmitri Lemenosvsii, Victor Dyadchenko,
University of Maine Office of Research Administration: Grant Reports
This award in International Programs and the Inorganic, Bioinorganic, and Organometallic Chemistry Program supports collaborative research by Dr. Alice E. Bruce of the University of Maine and Dr. Dmitri Lemenovskii of Moscow State University (Russia). The goal of the project is to design gold complexes that will be useful in new materials, such as liquid crystals. Organogold compounds containing rod-shaped molecules will be synthesized and structurally characterized. Lattice effects in liquid and solid phases formed from the compounds will be studied. Both groups are experienced in the synthetic aspects of the research, but will take advantage of the University of …
Self-Assembly Of Inorganic Membranes: Attachment Of Gold Nanoparticles To A Mesoporous Silica Membrane, Jennifer K. Saucier
Self-Assembly Of Inorganic Membranes: Attachment Of Gold Nanoparticles To A Mesoporous Silica Membrane, Jennifer K. Saucier
Honors College
The purpose of this study was to investigate the self-assembly of gold nanoparticles to create thin, densely packed structures several monolayers thick for the synthesis of a membrane. Silica membrane synthesis was examined as a support for deposition of the nanoparticles. Pore size formation and thickness were controlled to promote high flux, defect free layer formation while providing for optimum separation. Silica mesoporous membranes were created through the acid-catalyzed hydrolysis of tetraethyl orthosilicate. An ionic block co-polymer was used to control a networked pore formation. The silica sols were dip coated on macroporous alumina supports. The silica membranes were characterized …