Advanced Search
Display options
Filter resources
Text Availability
Article type
Publication date
Species
Language
Sex
Age
Showing 1 to 12 of 91 entries
Sorted by: Best Match Show Resources per page
Core Halogenation as a Construction Principle in Tuning the Material Properties of Tetraazaperopyrenes.

Chemistry (Weinheim an der Bergstrasse, Germany)

Hahn L, Maass F, Bleith T, Zschieschang U, Wadepohl H, Klauk H, Tegeder P, Gade LH.
PMID: 26507207
Chemistry. 2015 Dec 01;21(49):17691-700. doi: 10.1002/chem.201503484. Epub 2015 Oct 28.

A detailed study on the effects of core halogenation of tetraazaperopyrene (TAPP) derivatives is presented. Its impact on the solid structure, as well as the photophysical and electrochemical properties, has been probed by the means of X-ray crystallography, UV/Vis...

Nonlinear optical response of photochromic azobenzene-functionalized self-assembled monolayers.

Physical chemistry chemical physics : PCCP

Schulze M, Utecht M, Moldt T, Przyrembel D, Gahl C, Weinelt M, Saalfrank P, Tegeder P.
PMID: 26100382
Phys Chem Chem Phys. 2015 Jul 21;17(27):18079-86. doi: 10.1039/c5cp03093e. Epub 2015 Jun 23.

The combination of photochromic and nonlinear optical (NLO) properties of azobenzene-functionalized self-assembled monolayers (SAMs) constitutes an intriguing step towards novel photonic and optoelectronic devices. By utilizing the second-order NLO process of second harmonic generation (SHG), supported by density-functional theory...

Isolation and characterization of muscle fatigue substance with anti-tumor activities.

Journal of Cancer

Munoz RM, Han H, Tegeler T, Petritis K, Von Hoff DD, Hoffman SA.
PMID: 23678371
J Cancer. 2013 May 09;4(4):343-9. doi: 10.7150/jca.5418. Print 2013.

Research during the 1950's indicated that exercise played a role in the reduction of tumor growth. In the 1960's our studies confirmed that tumor-bearing rats, exercised to fatigue, demonstrated tumor inhibition. Our further studies isolated an extract (Fatigue Substance,...

Constant pH Molecular Dynamics in Explicit Solvent with λ-Dynamics.

Journal of chemical theory and computation

Donnini S, Tegeler F, Groenhof G, Grubmüller H.
PMID: 21687785
J Chem Theory Comput. 2011 Jun 14;7(6):1962-1978. doi: 10.1021/ct200061r. Epub 2011 Apr 25.

pH is an important parameter in condensed-phase systems, because it determines the protonation state of titratable groups and thus influences the structure, dynamics, and function of molecules in solution. In most force field simulation protocols, however, the protonation state...

BRV-continuum source as a radiometric transfer standard between 40 nm and 600 nm.

Applied optics

Kühne M, Stuck D, Tegeler E.
PMID: 20396340
Appl Opt. 1982 Nov 01;21(21):3919-22. doi: 10.1364/AO.21.003919.

The BRV-continuum source was investigated for its potential use as a radiometric transfer standard in the wavelength region from 40 to 600 nm. Variations of the spectral radiance from one pulse to the other up to a factor of...

Adsorption energetics of azobenzenes on noble metal surfaces.

Journal of physics. Condensed matter : an Institute of Physics journal

Schulze M, Bronner C, Tegeder P.
PMID: 25077738
J Phys Condens Matter. 2014 Sep 03;26(35):355004. doi: 10.1088/0953-8984/26/35/355004. Epub 2014 Jul 31.

Temperature-programmed desorption measurements have been applied to investigate the binding energies of four systems, namely the photochromic molecular compounds azobenzene and tetra-tert-butyl-azobenzene (TBA) adsorbed on the Au(1 1 1) and Ag(1 1 1) surfaces, respectively. The binding energy is...

Molecular Ion Formation by Photoinduced Electron Transfer at the Tetracyanoquinodimethane/Au(111) Interface.

The journal of physical chemistry letters

Gerbert D, Tegeder P.
PMID: 28899087
J Phys Chem Lett. 2017 Oct 05;8(19):4685-4690. doi: 10.1021/acs.jpclett.7b01897. Epub 2017 Sep 15.

Optically induced processes in organic materials are essential for light harvesting, switching, and sensor technologies. Here we studied the electronic properties of the tetracyanoquinodimethane(TCNQ)/Au(111) interface by using two-photon photoemission spectroscopy. For this interface we demonstrated the lack of charge-transfer...

Reversible end-to-end assembly of selectively functionalized gold nanorods by light-responsive arylazopyrazole-cyclodextrin interaction.

Beilstein journal of organic chemistry

Niehues M, Tegeder P, Ravoo BJ.
PMID: 31293690
Beilstein J Org Chem. 2019 Jun 26;15:1407-1415. doi: 10.3762/bjoc.15.140. eCollection 2019.

We propose a two-step ligand exchange for the selective end-functionalization of gold nanorods (AuNR) by thiolated cyclodextrin (CD) host molecules. As a result of the complete removal of the precursor capping agent cetyltrimethylammonium bromide (CTAB) by a tetraethylene glycol...

Electronic structure of an iron porphyrin derivative on Au(1 1 1).

Journal of physics. Condensed matter : an Institute of Physics journal

Stein A, Rolf D, Lotze C, Czekelius C, Franke KJ, Tegeder P.
PMID: 30523801
J Phys Condens Matter. 2019 Jan 30;31(4):044002. doi: 10.1088/1361-648X/aaf296. Epub 2018 Nov 21.

Surface-bound porphyrins are promising candidates for molecular switches, electronics and spintronics. Here, we studied the structural and the electronic properties of Fe-tetra-pyridil-porphyrin adsorbed on Au(1 1 1) in the monolayer regime. We combined scanning tunneling microscopy/spectroscopy, ultraviolet photoemission, and...

Binding energies of benzene on coinage metal surfaces: Equal stability on different metals.

The Journal of chemical physics

Maaß F, Jiang Y, Liu W, Tkatchenko A, Tegeder P.
PMID: 29884059
J Chem Phys. 2018 Jun 07;148(21):214703. doi: 10.1063/1.5030094.

Interfaces between organic molecules and inorganic solids adapt a prominent role in fundamental science, catalysis, molecular sensors, and molecular electronics. The molecular adsorption geometry, which is dictated by the strength of lateral and vertical interactions, determines the electronic structure...

Band Formation at Interfaces Between N-Heteropolycycles and Gold Electrodes.

The journal of physical chemistry letters

Stein A, Rolf D, Lotze C, Günther B, Gade LH, Franke KJ, Tegeder P.
PMID: 33440118
J Phys Chem Lett. 2021 Jan 21;12(2):947-951. doi: 10.1021/acs.jpclett.0c03630. Epub 2021 Jan 13.

Efficient charge injection at organic semiconductor/metal interfaces is crucial for the performance of organic field effect transistors. Interfacial hybrid band formation between electronic states of the organic compound and the metal electrode facilitates effective charge injection. Here, we show...

Altering ureide transport in nodulated soybean results in whole-plant adjustments of metabolism, assimilate partitioning, and sink strength.

Journal of plant physiology

Lu MZ, Carter AM, Tegeder M.
PMID: 35033961
J Plant Physiol. 2021 Dec 28;269:153613. doi: 10.1016/j.jplph.2021.153613. Epub 2021 Dec 28.

Legumes develop a symbiotic relationship with bacteria that are housed in root nodules and fix atmospheric di-nitrogen (N

Showing 1 to 12 of 91 entries