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Dr. Kaan Atak

Atak_Portrait_small

Joint Ultrafast Dynamics Laboratory in Solution and at Interfaces

Helmholtz Zentrum Berlin für Materialien und Energie

Freie Universität Berlin

Postdoc

Adresse Albert-Einstein Straße 15
Raum 14.51-3260
12489 Berlin
Telefon (030) 8062 - 15022
E-Mail kaan.atak@helmholtz-berlin.de

Mini CV:

I obtained my PhD degree from Bogazici University, Istanbul, in 2009. My PhD topics include the photoconductivity properties of several noncrystalline materials and chaotic properties in the conductivity of certain polymers.

In the group, I perform soft X-ray spectroscopic techniques (X-ray absorption, emission and resonant inelastic X-ray scattering) using synchrotron radiation applied to functional materials in solution and theoretical quantum chemical techniques necessary for the interpretation of the experimental results.

Publications:

Influence of the Outer Ligands on Metal-to-Ligand Charge Transfer in Solvated Manganese Porphyrins

R. Golnak, J. Xiao, M. Pohl, C. Schwanke, A. Neubauer, K. M. Lange, K. Atak, E. F. Aziz

Inorg. Chem., 2016, doi: http://dx.doi.org/10.1021/acs.inorgchem.5b01585

Intermolecular Bonding of Hemin in Solution and in Solid State Probed by N K-edge X-ray Spectroscopies

R. Golnak, J. Xiao, K. Atak, J. S. Stevens, A. Gainar, S. L. M. Schroeder, E. F. Aziz

Phys. Chem. Chem. Phys., 2015, http://dx.doi.org/10.1039/c5cp04529k

Ti3+ Aqueous Solution: Hybridization and Electronic Relaxation Probed by State-Dependent Electron Spectroscopy

R. Seidel, K.Atak, S. Thürmer, E. F. Aziz, B. Winter

J. Phys. Chem. B, 2015, http://dx.doi.org/10.1021/acs.jpcb.5b03337

Fluorination-dependent Molecular Orbital Occupancy in Ring-shaped Perfluorocarbons

T. Brandenburg, T. Petit, A. Neubauer, K. Atak, M. Nagasaka, R. Golnak, N. Kosugi, E. F. Aziz

Phys. Chem. Chem. Phys., 2015, http://dx.doi.org/10.1039/C5CP01254F

Local Energy Gap Opening Induced by Hemin Dimerization in Aqueous Solution

R. Golnak , J. Xiao , K. Atak , M. Khan , E. Suljoti, E. F. Aziz

J. Phys. Chem. B, 2015, http://dx.doi.org/10.1021/jp509966q

Co(III) protoporphyrin IX chloride in solution: Spin-state and metal coordination revealed from resonant inelastic X-ray scattering and electronic structure calculations

K. Atak, R. Golnak, J. Xiao, M. Pflüger, T. Brandenburg, B. Winter, E. F. Aziz

Phys. Chem. Chem. Phys., 2015, http://dx.doi.org/10.1039/C4CP04703F

The Electronic Structure of Perfluorodecalin studied by Soft X-ray Spectroscopy and Electronic Structure Calculations

T. Brandenburg, M. Agaker, K. Atak, M. Pflüger, C. Schwanke, T. Petit, K. M Lange, J.-E. Rubensson, E. F. Aziz

Phys. Chem. Chem. Phys., 2014, http://dx.doi.org/10.1039/C4CP03153A

Electronic Structural Insights into Efficient MnOx Catalysts

M. A. Khan, E. Suljoti, A. Singh, S. Bonke, T. Brandenburg, K. Atak, R. Golnak, L. Spiccia, E. F. Aziz

J. Mater. Chem. A, 2014, http://dx.doi.org/10.1039/C4TA04185B

Electronic Structure of Hemin in Solution Studied by Resonant X-ray Emission Spectroscopy and Electronic Structure Calculations

K. Atak , R. Golnak , J. Xiao , E. Suljoti , M. Pflüger , T. Brandenburg , B. Winter , E. F. Aziz

J. Phys. Chem. B, 2014, http://dx.doi.org/10.1021/jp505129m

Assistance of the Iron Porphyrin Ligands to the Binding Interaction Between the Fe Center and Small Molecules in Solution

J. Xiao, R. Golnak, K. Atak, M. Pflüger, M. N. Pohl, E. Suljoti, B. Winter, E. F. Aziz

J. Phys. Chem. B, 2014, http://dx.doi.org/10.1021/jp5023339

Bokarev et al. Reply

S.I. Bokarev, M. Dantz, E. Suljoti, K. Atak, B. Winter, Oliver Kühn, E. F. Aziz

Phys. Rev. Lett., 2014, http://dx.doi.org/10.1103/PhysRevLett.112.129303

Chemical Bonding in Aqueous Ferrocyanide: Experimental and Theoretical X-ray Spectroscopic Study

N. Engel, S.I. Bokarev, E. Suljoti, R. Garcia-Diez, K. M. Lange, K. Atak, R. Golnak, A. Kothe, M. Dantz, Oliver Kühn, E. F. Aziz

J. Phys. Chem. B, 2014, http://dx.doi.org/10.1021/jp411782y

Nature of the Chemical Bond of Aqueous Fe2+ Probed by Soft Xray Spectroscopies and ab Initio Calculations

K. Atak, S.I. Bokarev, M. Gotz, R. Golnak, K. M. Lange, N. Engel, M. Dantz, E. Suljoti, Oliver Kühn, E. F. Aziz

J. Phys. Chem. B, 2013, http://dx.doi.org/10.1021/jp408212u

Probing Orbital Symmetry in Solution: Polarization-dependent Resonant Inelastic Soft X-Ray Scattering on Liquid Micro-jet

B. Dierker, E. Suljoti, K. Atak, K. M. Lange, N. Engel, R. Golnak, M. Dantz, K. Hodeck, M. Khan, N. Kosugi, E. F. Aziz

New J. Phys., 2013, http://dx.doi.org/10.1088/1367-2630/15/9/093025

Direct Observation of Molecular Orbital Mixing in a Solvated Organometallic Complex

E. Suljoti, R. Garcia-Diez, S. I. Bokarev, K. M. Lange, R. Schoch, B. Dierker, M. Dantz, K. Yamamoto, N. Engel, K. Atak, O. Kühn, M. Bauer, J.-E. Rubensson, E. F. Aziz

Angew. Chem. Int. Ed., 2013, http://dx.doi.org/10.1002/anie.201303310

Local Electronic Structure of Aqueous Zinc Acetate: Oxygen K-Edge X-Ray Absorption and Emission Spectroscopy on Micro-Jet

R. Golnak, K. Atak, E. Suljoti, K. F. Hodeck, K. M. Lange, M. A. Soldatov, N. Engel, E. F. Aziz

Phys. Chem. Chem. Phys. (2013), http://dx.doi.org/10.1039/C3CP50686J

Probing Coster-Kronig Transitions in Aqueous Fe+2 Solution Using Inverse Partial and Partial Fluorescence Yield at the L-edge

M. D. Gotz, M. A. Soldatov, K. M. Lange, N. Engel, R. Golnak, R. Könnecke, K. Atak, W. Eberhardt, E. F. Aziz

J. Phys. Chem. Lett., 2012, http://dx.doi.org/10.1021/jz300403n

DMSO−Water Clustering in Solution Observed in Soft XRay Spectra

N. Engel, K. Atak, K. M. Lange, M. Gotz, M. Soldatov, R. Golnak, E. Suljoti, J.-E. Rubensson, E. F. Aziz

J. Phys. Chem. Lett., 2012, http://dx.doi.org/10.1021/jz301665s

The Chemical Bond in Carbonyl and Sulfinyl Groups Studied by Soft X-ray Spectroscopy and ab Initio Calculations

K. Atak, N. Engel, K. M. Lange, R. Golnak, M. Gotz, M. Soldatov, J.-E. Rubensson, N. Kosugi, E. F. Aziz

Chem. Phys. Chem., 2012, http://dx.doi.org/10.1002/cphc.201200314

Possible Stretched Exponential Parametrization for Humidity Absorption in Polymers

A. Hacınlıyan, Y. Skarlatos, G. Sahin, K. Atak, O. O. Aybar

Eur. Phys. J. E, 2009, http://dx.doi.org/10.1140/epje/i2008-10428-x

Chaoticity Analysis of the Current Through Pure, Hydrogenated and Hydrophobically Modified PEG-Si Thin Films Under Varying Relative Humidity

K. Atak, O. O. Aybar, G. Şahin, A. Hacınlıyan, Y. Skarlatos

Cent. Eur. J. Phys., 2009, http://dx.doi.org/10.2478/s11534-009-0034-8

Temperature Dependence of Photoinduced Anisotropy in the Photoconductivity of As2Se3 And Sb2S3 Thin Films

K. Atak, G. Aktaş, Y. Skarlatos, M. N. Inci

Mod. Phys. Lett. B, 2008, http://dx.doi.org/10.1142/S0217984908016625