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- Stenberg, Henrik
(författare)
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Att bli konstnär : Om identitet, subjektivitet och konstnärskap i det senmoderna samhället
- 2002
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- This dissertation explore young peoples will to become artists. A group of artstudents have been interviewed and severel questions are raised. How do the students perceive their artistry and their role as artists? In what way is artistic creation meaningful to them? What does the relationship between the individual project of becoming an artist and their societal participation look like? As artists they examine different phenomena subjectively and they sometimes exceed personal and social boundaries. What may this look like and how may it be understod? In order to understand and interpret the art students’ work and reasons to become artists sociologically, I use Anthony Giddens analysis of the late-modern society and and the late-modern identity. Giddens creates a sociological understanding of the individual in society rather than an understanding of specific social groups. An understanding, which is well suited to highlight, the frequently individual life projects, created by the art students. However, Giddens theory is broad and opens for critisism. The art students, give their views of society and of themselves, which are not always in agreement with Giddens’ theory and therefore create different thoughts about the late-modern identity. When I develop Giddens’ theory, it is through an interaction between Giddens, the artstudents and other theories, between which I create a dialogue about identity, the exceedeing of social boundaries and the role of subjecticity in the late modern society.
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| 2. |
- Johansson, Olof, 1974-
(författare)
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Ruthenium(II) Polypyridyl Complexes : Applications in Artificial Photosynthesis
- 2004
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Molecular mimics of PS II, which consist of a photosensitizer linked to electron acceptors/donors, are attractive candidates for the conversion of solar energy into chemical energy. Several different classes of sensitizers have been studied and among these, ruthenium(II) polypyridyl complexes continue to attract major attention.The first part of this thesis presents the photophysical properties, stereochemistry, and general synthesis of ruthenium(II) polypyridyl complexes based on 2,2´-bipyridyl and 2,2´:6´,2´´-terpyridyl ligands. The second part deals with ruthenium(II) polypyridyl complexes linked to electron acceptors (benzoquinone, naphthalene diimide) and electron donors (phenothiazine, tyrosine, manganese complexes). Functionalized 2,2´-bipyridines and 2,2´:6´,2´´-terpyridines were synthesized and used in the stepwise assembly of the chromophore-quencher complexes. These were fully characterized and the redox properties were studied by cyclic and differential pulse voltammetry. The intramolecular charge-separated states formed after light excitation of the ruthenium(II) unit were observed by time-resolved absorption and EPR spectroscopy.In the third part of this thesis, the synthesis and photophysical properties of a novel class of bistridentate ruthenium(II) polypyridyl complexes based on bipyridyl-pyridyl methane ligamds are discussed. The solution structures of the homoleptic and heteroleptic complexes were studied by 2D NMR techniques. The X-ray structure of one of the homoleptic complexes has been solved. The effect on the excited state lifetime for these ruthenium(II) complexes compared to the parent [Ru(tpy)2]2+ is discussed. Finally, in one of the heteroleptic complexes an interesting reversible linkage iomerization was observed that could be induced either electrochemically or chemically.
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