Dr. Oliver Janka


Institut für Chemie

Carl von Ossietzky Universität Oldenburg
Postfach 2503
26111 Oldenburg

Homepage: www.uni-muenster.de/Chemie.ac/janka/welcome.html Raum: W03 3-354 (» Adresse und Lageplan) Sprechzeiten: Dienstags, 13-15 Uhr - nur nach Vereinbarung Tel.: 798-3660 Fax: +40 (0)-441/798-3329

Aktuelle Lehrveranstaltungen

Wintersemester 2016/2017


[2] O. Janka, S. M. Kauzlarich: ’Zintl Compounds’ in Encyclopedia of Inorganic and
Bioinorganic Chemistry, Wiley, 2013, 1–14.
[DOI: 10.1002/9781119951438.eibc0244.pub2]

[1] Th. Schleid, H. Müller-Bunz, O. Janka: ’Geo-Inspired Phosphors Based on Rare-
Earth Metal(III) Fluorides with Complex Oxoanions: I. Fluoride Oxocarbonates
and Oxosilicates’, in Minerals as Advanced Materials II, Springer, 2012, 353–366.
[DOI: 10.1007/978-3-642-20018-2_33]

[36] O. Janka, J. Zaikina, S. Bux, H. Tabatabaifar, H. Yang, N. D. Browing, S. M.
Kauzlarich: ’Microstructure Investigations of Yb- and Bi-doped Mg2Si Prepared
from Metal Hydrides for Thermoelectric Applications’ J. Solid State Chem., 2017, 245, 152-159.

[35] T. Dresselhaus, S. Eusterwiemann, D. R. Matuschek, C. G. Daniliuc, O. Janka,
R. Pöttgen, A. Studer, J. Neugebauer: ’Black-box determination of temperature
dependent susceptibilities for crystalline organic radicals with complex magnetic
topologies’ Phys. Chem. Chem. Phys. 2016, online einsehbar.
[DOI: 10.1039/C6CP05875B]

[34] O. Janka*, R.-D. Hoffmann, M. Eilers-Rethwisch, U. Ch. Rodewald, O. Niehaus,
R. Pöttgen: ’Revisiting Ce3Pt4Ge6 - Crystal Structure and Physical Properties’
Inorg. Chem. Front. 2016, online einsehbar.
[DOI: 10.1039/C6QI00248J]

[33] J.-P. Schmiegel, T. Block, B. Gerke, T. Fickenscher, R. St. Touzani, B. P. T.
Fokwa, O. Janka*: ’EuAu3Al2: Crystal and Electronic Structures, Spectroscopic,
Magnetic and Magnetocaloric Properties’ Inorg. Chem. 2016, 55, 9057–9064.
[DOI: 10.1021/acs.inorgchem.6b01530]

[32] F. Stegemann, O. Janka*: ’RE16AuxAl13−x with RE = La - Nd, Sm (x  3.37):
Synthesis, Crystal Structure and Physical Properties of an Intermetallic Solid
Solution with Barrelane Analogue Units’ Dalton Trans. 2016, 45, 13863–13871.
[DOI: 10.1039/C6DT02649D]

[31] D. Pfister, K. Schäfer, C. Ott, B. Gerke, R. Pöttgen, O. Janka, M. Baumgartner,
R. Weihrich, A. Efimova, A. Hohmann, P. Schmidt, S. Venkatachalam, L. van
Wüllen, U. Schürmann, L. Kienle, V. Duppel, E. Parzinger, B. Miller, J. Becker,
A. Holleitner, T. Nilges: ’Inorganic double helices in semiconducting SnIP’ Adv.
Mater. 2016, 1-9.
[DOI: 10.1002/adma.201603135]

[30] F. Stegemann, C. Benndorf, R. St. Touzani, B. P. T. Fokwa, O. Janka*: ’Experimental
and Theoretical Investigations of the Polar Intermetallics SrPt3Al2 and
Sr2Pd2Al’ J. Solid State Chem. 2016, 242, 143–150.
[DOI: 10.1016/j.jssc.2016.07.019]

[29] O. Janka, O. Niehaus, R. Pöttgen, B. Chevalier: ’Cerium Intermetallics with
TiNiSi-Type Structure’ Z. Naturforsch. 2016, 71b, 737–764.
[DOI: 10.1515/znb-2016-0101]

[28] M. Radzieowski, C. Benndorf. S. Haverkamp, H. Eckert, O. Janka*: ’On New
Ternary Equiatomic Scandium Transition Metal Aluminum Compounds ScTAl
with T = Cr, Ru, Ag, Re, Pt, and Au’ Z. Naturforsch. 2016, 71b, 553–566.
[DOI: 10.1515/znb-2016-0044]

[27] R. Pöttgen, O. Janka, B. Chevalier: ’Cerium Intermetallics CeTX - Review III’
Z. Naturforsch. 2016, 71b, 165–191.
[DOI: 10.1515/znb-2016-0013]

[26] F. Stegemann, C. Benndorf, R. St. Touzani, B. P. T. Fokwa, O. Janka*:
’Sr2Pd4Al5: Synthesis, Crystal and Electronic Structures, and Chemical Bonding
of a New Polar Intermetallic Compound’ Eur. J. Inorg. Chem. 2016, 2016,
[DOI: 10.1002/ejic.201501455]

[25] G. Heymann, B. Heying, U. Ch. Rodewald, O. Janka, H. Huppertz, R. Pöttgen:
’High-pressure high-temperature crystal growth of equiatomic rare earth stannides
RENiSn and REPdSn’ J. Solid State Chem. 2015, 236, 138–146.
[DOI: 10.1016/j.jssc.2015.06.044]

[24] R.-D. Hoffmann, F. Stegemann, O. Janka*: ’SrPt2Al2 - A (3+2)Dincommensurately
modulated variant of the CaBe2Ge2 type structure’ Z. Kristallogr.
2015, published online.
[DOI: 10.1515/zkri-2015-1891]

[23] F. Stegemann, C. Benndorf, T. Bartsch, R. St. Touzani, M. Bartsch, H. Zacharias,
B. P. T. Fokwa, H. Eckert, O. Janka*: ’Ba3Pt4Al4 – Structure, Properties, Theoretical
and NMR Spectroscopic Investigations of a Complex Platinide Featuring
Heterocubane [Pt4Al4] Units’, Inorg. Chem. 2015, 54, 10785–10793.
[DOI: 10.1021/acs.inorgchem.5b01842]

[22] D. D. Zimmermann, H. Grossholz, S. Wolf, O. Janka, A. C. Müller, Th. Schleid:
’Two Hexagonal Rare-Earth(III) Oxide Fluoride Selenide Structure Types -
M6O2F8Se3 (M = La, Nd) and B-type M2OF2Se (M = Gd, Ho)’ Z. Anorg.
Allg. Chem. 2015, 641, 1926–1933.
[DOI: 10.1002/zaac.201500253]

[21] O. Niehaus, O. Janka*: ’Gradual Cerium Valence Change in the Solid Solution
CeRu1−xPdxAl (x = 0.1-0.9)’ Z. Anorg. Allg. Chem. 2015, 641, 1792–1797.
[DOI: 10.1002/zaac.201500139]

[20] C. Benndorf, O. Niehaus, H. Eckert, O. Janka*: ’27Al and 45Sc NMR Spectroscopy
on ScT2Al and Sc(T0.5T’0.5)2Al (T = T’ = Ni, Pd, Pt, Cu, Ag, Au) Heusler
Phases and Superconductivity in Sc(Pd0.5Au0.5)2Al’ Z. Anorg. Allg. Chem. 2015,
641, 168–175.
[DOI: 10.1002/zaac.201400509]

[19] O. Janka, R. E. Baumbach, E. D. Bauer, S. M. Kauzlarich: ’Structure and
Physical Properties of Ce3(Ni/Al/Ga)11 - A New Phase with the La3Al11 Structure
Type’ Crystals 2015, 5, 1–8.
[DOI: 10.3390/cryst5010001]

[18] F. Stegemann, C. Benndorf, H. Eckert, O. Janka*: ’New Transition Metal
Rich Rare-Earth Palladium/Platinum Aluminides with RET5Al2 Stoichiometry:
Structure, Magnetism and 27Al NMR Spectroscopy’ Z. Naturforsch. 2015, 70b,
[DOI: 10.1515/ZNB-2014-0223]

[17] S. Seidel, O. Niehaus, S. F. Matar, O. Janka, B. Gerke, U. Ch. Rodewald, R.
Pöttgen: ’The Gallium Intermetallics REPdGa3 (RE = La, Ce, Pr, Nd, Sm, Eu)
with SrPdGa3-type Structure’ Z. Naturforsch. 2014, 69b, 1105–1118.
[DOI: 10.5560/ZNB.2014-4119]

[16] B. Gerke, O. Janka, R. Pöttgen: ’RE6Pd13Zn4 (RE = La–Nd, Sm, Gd, Tb) –
New Palladium-rich Phases with Pd@RE6 Octahedra in bcc Packing’ Z. Anorg.
Allg. Chem. 2014, 640, 2747–2752.
[DOI: 10.1002/zaac.201400334]

[15] M. Eilers-Rethwisch, O. Niehaus, O. Janka*: ’Magnetic Ordering Phenomena in
the Solid Solution CePt1−xPdxAl’ Z. Anorg. Allg. Chem. 2014, 640, 153–158.
[DOI: 10.1002/zaac.201300485]

[14] O. Niehaus, U. Ch. Rodewald, P. M. Abdala, R. St. Touzani, B. P. T. Fokwa,
O. Janka*: ’Synthesis and Theoretical Investigations of the Solid Solution
CeRu1−xNixAl (x = 0.1 - 0.95) Showing Cerium Valence Fluctuations’ Inorg.
Chem. 2014, 53, 2471–2480.
[DOI: 10.1021/ic402414f]

[13] S. K. Bux, A. Zevalkink, O. Janka, D. Uhl, S. M. Kauzlarich, J. G. Snyder, J.-P.
Fleurial: ’Glass-like lattice thermal conductivity and high thermoelectric efficiency
in Yb9Mn4.2Sb9’ J. Mater. Chem. A 2014, 2, 215–220.
[DOI: 10.1039/C3TA14021K]

[12] H. Grossholz, D. D. Zimmermann, O. Janka, Th. Schleid: ’Oxidfluoridsulfide der
Lanthanoide vom Formeltyp M6O2F8S3 (M = La – Nd, Sm, Gd)’ Z. Naturforsch.
2013, 68b, 751–760. (auf deutsch)
[DOI: 10.5560/ZNB.2013-3110]

[11] O. Janka, R. E. Baumbach, J. D. Thompson, E. D. Bauer, S. M. Kauzlarich: ’Crystal
Structure, Magnetism and Transport Properties of Ce3Ni25.75Ru3.16Al4.1B10’
J. Solid State Chem. 2013, 205, 154–159.
[DOI: 10.1016/j.jssc.2013.05.041]

[10] O. Janka, R. E. Baumbach, F. Ronning, J. D. Thompson, E. D. Bauer, S. M.
Kauzlarich: ’Crystal structure, magnetic and transport properties of CeRu1−xNixAl
(x = 0.5)’ Z. Anorg. Allg. Chem. 2012, 638, 1996–2000.
[DOI: 10.1002/zaac.201200173]

[09] E. D. Bauer, M. M. Altarawneh, P. H. Tobash, K. Gofryk, O. E. Ayala-Valenzuela,
J. N. Mitchell, R. D. McDonald, C. H. Mielke, F. Ronning, J.-C. Griveau, E.
Colineau, R. Eloirdi, R. Caciuffo, B. L. Scott, O. Janka, S. M. Kauzlarich, J. D.
Thompson: ’Localized 5f electrons in superconducting PuCoIn5: consequences for
superconductivity in PuCoGa5’ J. Phys.: Condens. Matter 2011, 24, 052206.
[DOI: 10.1088/0953-8984/24/5/052206]

[08] C. M. Schurz, F. Lissner, O. Janka, Th. Schleid: ’Synthesis and Crystal Structure
of the N3−-Poor Nitride Selenides with the Formula Type M5NSe6 (M = La –
Pr) Containing Isolated Bitetrahedra N2M6
12+’ Z. Anorg. Allg. Chem. 2011, 637,
[DOI: 10.1002/zaac.201100033]

[07] H. Grossholz, O. Janka, Th. Schleid: ’Oxidfluoridsulfide der Lanthanide vom
Formeltyp M3OF5S (M = Nd, Sm, Gd – Ho)’ Z. Naturforsch. 2011, 66b. 213–220.
(auf deutsch)

[06] O. Janka, H. Müller-Bunz, Th. Schleid: ’Two Ta2O5-Rich Alkali-Metal Lanthanide(
III) Oxotantalates(V): K2LaTa5O15 and NaTm2Ta15O41’ Z. Anorg. Allg. Chem.
2010, 636. 1865–1869.
[DOI: 10.1002/zaac.201000211]

[05] O. Janka, Th. Schleid: ’Two Fluoride-Containing Oxotantalates(V) of the Light
Lanthanides: NdFTa2O6 and La3Cl3TaO5F’ Solid State Sci. 2009, 11, 1992–1997.
[DOI: 10.1016/j.solidstatesciences.2009.07.002]

[04] O. Janka, Th. Schleid: ’Facile Synthesis of Bastnaesite-Type LaF[CO3] and its
Thermal Decomposition to LaOF for Bulk and Eu3+-Doped Samples’ Eur. J.
Inorg. Chem. 2009, 357–362.
[DOI: 10.1002/ejic.200800931]

[03] O. Janka, Th. Schleid: ’CuEuFTe und AgBaFTe: Zwei unterschiedliche
Münzmetall(I)-Fluorid-Telluride mit unterschiedlichen M2+-Kationen’ Z. Anorg.
Allg. Chem. 2008, 634, 2048. (auf deutsch)
[DOI: 10.1002/zaac.200870080]

[02] O. Janka, Th. Schleid: ’TbFCl2: Das erste Fluoridchlorid der dreiwertigen Lanthanoide’
Z. Anorg. Allg. Chem. 2008, 634, 31–33. (auf deutsch)
[DOI: 10.1002/zaac.200700360]

[01] H. Müller-Bunz, O. Janka, Th. Schleid: ’Er3O2F5: Ein Erbiumoxidfluorid mit
Vernier-Struktur’ Z. Anorg. Allg. Chem. 2007, 633, 37–39. (auf deutsch)
[DOI: 10.1002/zaac.200600274]