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Your search keyword '"Małgorzata Wielgus"' showing total 3 results
Start Over Author "Małgorzata Wielgus" Topic 0104 chemical sciences
3 results on '"Małgorzata Wielgus"'

1. Two-photon absorption of BF2-carrying compounds: insights from theory and experiment

Author

Małgorzata Wielgus, Robert Zaleśny, Wojciech Bartkowiak, Hans Ågren, Rakesh Puttreddy, Joanna Bednarska, Beata Jędrzejewska, Kari Rissanen, and Borys Ośmiałowski

Subjects
010405 organic chemistry, structure-property study, General Physics and Astronomy, Nanotechnology, 010402 general chemistry, 01 natural sciences, Fluorescence, Two-photon absorption, 0104 chemical sciences, chemistry.chemical_compound, chemistry, Chemical physics, Pyridine, compounds, Physical and Theoretical Chemistry, ta116
Abstract

This communication presents a structure–property study of a few novel pyridine-based difluoroborate compounds with a N–BF2–O core, which exhibit outstanding fluorescence properties. To exploit their potential for two-photon bioimaging, relationships between the two-photon action cross section and systematic structural modifications have been investigated and unravelled.

Published
2017
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3. Cubic nonlinear optical properties of new zinc tetraphenyl porphyrins peripherally functionalized with electron-rich Ru(II) alkynyl substituents

Author

Marek Samoc, Areej Merhi, Katarzyna Matczyszyn, Małgorzata Wielgus, Christine O. Paul-Roth, Samuel Drouet, Frédéric Paul, Marie P. Cifuentes, Joanna Olesiak-Banska, Mark G. Humphrey, Dandan Yao, Institut des Sciences Chimiques de Rennes (ISCR), Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA), Australian National University (ANU), Institute of Physical and Theoretical Chemistry, Wroclaw University of Science and Technology, Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES), Université Européenne de Bretagne (UEB), FEDER, RTR BRESMAT, CNRS [5676], Ministère National de la Recherche et de la Technologie (MNERT), Région Bretagne, China Scholarship Council (CSC), Foundation for Polish Science Welcome grant, Polish Ministry of Science and Higher Education, Australian Research Council, ARC, Université de Rennes (UR)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Institut National des Sciences Appliquées (INSA)-Ecole Nationale Supérieure de Chimie de Rennes (ENSCR)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and Institut National des Sciences Appliquées (INSA)

Subjects
Nonlinear optics, ORGANIC MATERIALS, Stereochemistry, chemistry.chemical_element, Zinc, Electron, 010402 general chemistry, 01 natural sciences, Biochemistry, Chemical reaction, Porphyrin, RUTHENIUM COMPLEXES, chemistry.chemical_compound, ORGANOMETALLIC COMPLEXES, Polarizability, ARYL GROUP, FLUORENONE PENDANT ARMS, Drug Discovery, Tetraphenylporphyrin, DENDRIMERS, Pi-conjugation, [CHIM.ORGA]Chemical Sciences/Organic chemistry, 010405 organic chemistry, Organic Chemistry, Organometallics, Block (periodic table), DIMERS, 3. Good health, 0104 chemical sciences, Crystallography, 2-PHOTON ABSORPTION, chemistry, METAL-COMPLEXES, 3RD-ORDER, Acetylide complex
Abstract

We report the synthesis and characterization of new organometallic assemblies consisting of a central Zn(II) tetraphenylporphyrin (ZnTPP) core surrounded by four Ru(II) alkynyl complexes ( trans -Ru(dppe) 2 R) appended at the para phenyl positions and acting as peripheral donor groups. The synthesis of the tetra-chlorido derivative 2 (R=Cl) is reported first, followed by that of three extended homologues ( 3 –X) obtained from this building block by substitution of the chlorido ligands by functionalized arylacetylenes (R=C C(4-C 6 H 4 X); X=NO 2 , H, OMe). Measurement of the nonlinear absorption properties of the pentametallic derivatives 3 –X reveals that these extended π-networks incorporating polarizable organometallic units behave as good two-photon absorbers in the visible and near-IR range.

Published
2012
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