Investigation of dimensional and structural properties
of dye aggregates
Von der Fakultät für Naturwissenschaften
Department Chemie
der Universität Paderborn
zur Erlangung des Grades eines
Doktors der Naturwissenschaften
Dr. rer. nat.
genehmigte Dissertation
von
Richárd Péter Szopkó
aus Hajdúdorog (Ungarn)
Paderborn 2009
Die vorliegende Arbeit wurde in der Zeit von Februar 2005 bis April 2009 im
Fachgebiet Physikalische Chemie am Department Chemie der Fakultät für
Naturwissenschaften der Universität Paderborn unter Anleitung von Prof. Dr.
Claudia Schmidt angefertigt.
Referent: Prof. Dr. Claudia Schmidt
Korreferent: PD. Dr. Hans Egold
Eingereicht am: 23.04.2009
Mündliche Prüfung am: 29.05.2009
First of all, I would like to address my thanks to my supervisor Prof. Dr. Claudia
Schmidt, who gave me the possibility to work on this interesting topic. Thank you
for your support and patience in completing my thesis!
By the same token, I wish to express my thanks to Prof. Dr. Ferenc Joó, who
encouraged me to start my PhD work.
Further thanks to:
PD. Dr. H. Egold for being a valuable source of ideas and suggestions in the topic of
NMR spectroscopy and moreover for agreeing to write the Korreferat.
Prof. Dr. K. Huber for providing the dyes.
Prof. Dr. U. Olsson for the opportunity to work in the Department of Physical
Chemistry 1 at Lund University.
Prof. Dr. D. Topgaard, Dr. S. Lasic, Dr. M. Nilsson and I. Aslund for the technical
support of the diffusion NMR measurements at Lund University.
B. Medronho from Coimbra and Lund University for the effective collaboration.
Dr. F. Kleinschmidt for the diffusion NMR measurements in Freiburg.
Dr. J. Sehnert for help with the quantum chemical calculations in Bayreuth.
M. Perez for help with NMR sample preparation.
My colleagues, Dr. T. Witte, Dr. A. Hoischen, Dr. S. Benning, Dr. M. Lauhof, Dr. H.
Matthias, A. Lorenz, A. Redler, S. Lages, M. Bayer, Dr. S. Shafaei and G. Ar for a
positive working atmosphere.
G. Jünnemann and S. Keuker-Baumann for the technical support and the every-day
conversation in German.
I. Koralewicz for the fast and perfect all-around help.
Special thanks to Dr. L. Germán, O. Germán, Dr. B. Elsaesser, Dr. L. Majoros and B.
Wolf for their personal and scientific advice and help.
Finally, I extend my honest thanks to my family for all they have shared and their
continuous help!
Presentations and publications
R. Szopko, K. Huber, C. Schmidt: NMR investigation of the aggregation of dye molecules,
Poster, 72nd Annual Meeting of the German Physical Society, Berlin, Germany, February
2008
R. Szopko, C. Schmidt:
1
H chemical shift analysis and diffusion study of dye aggregates,
Poster, 7
th
Annual Surface and Colloid Symposium Nanostructures from self-assembly in
solution, Lund, Sweden, November 2007
R. Szopko, C. Schmidt: Diffusion NMR study of dye aggregates, Poster, 21
th
Conference of
the European Council of International Schools, Geneva, Switzerland, September 2007
R. Szopko, C. Schmidt: Aggregation of dye molecules: diffusion measured by pulsed field
gradient NMR method, Talk, NMR meeting, Berlin, Germany, March 2007
R. Szopko: Structure determination of dye aggregates, Poster, GDCh Magnetic Resonance
Division 28
th
Discussion Meeting, Poster, Tübingen, Germany, September 2006
R. Szopko: Structure determination of dyes, Talk, NMR meeting, Pottenstein, Germany,
March 2006
B. Medronho, S. Shafaei, R. Szopko, M. G. Miguel, U. Olsson, C. Schmidt: Shear-induced
transitions between a planar phase and multi-lamellar vesicles: Continuous versus
discontinuous transformation, Langmuir 2008, 24, 6480-6486
B. Medronho, S. Shafaei, R. Szopko, M. G. Miguel, U. Olsson, C. Schmidt: Shear-induced
structural transformations of the lyotropic lamellar phase: Continuous or discontinuous
transitions?, Poster, 21
th
Conference of the European Council of International Schools,
Geneva, Switzerland, September 2007
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