0000000001306962
AUTHOR
Lothar Fink
showing 10 related works from this author
Phase transition of tetragonal copper sulfide Cu2S at low temperatures
2017
The low-temperature behavior of tetragonal copper sulfide, ${\mathrm{Cu}}_{2}\mathrm{S}$, was investigated by powder and single-crystal x-ray diffraction, calorimetry, electrical resistance measurements, and ambient temperature optical absorption spectroscopy. The experiments were complemented by density-functional-theory-based calculations. High-quality, polycrystalline samples and single crystals of tetragonal copper sulfide were synthesized at 5 GPa and 700 K in a large volume multianvil press. Tetragonal ${\mathrm{Cu}}_{2}\mathrm{S}$ undergoes a temperature-induced phase transition to an orthorhombic structure at around 202 K with a hysteresis of $\ifmmode\pm\else\textpm\fi{}21$ K, an e…
Electron diffraction, X-ray powder diffraction and pair-distribution-function analyses to determine the crystal structures of Pigment Yellow 213, C23…
2009
The crystal structure of the nanocrystalline alpha phase of Pigment Yellow 213 (P.Y. 213) was solved by a combination of single-crystal electron diffraction and X-ray powder diffraction, despite the poor crystallinity of the material. The molecules form an efficient dense packing, which explains the observed insolubility and weather fastness of the pigment. The pair-distribution function (PDF) of the alpha phase is consistent with the determined crystal structure. The beta phase of P.Y. 213 shows even lower crystal quality, so extracting any structural information directly from the diffraction data is not possible. PDF analysis indicates the beta phase to have a columnar structure with a si…
Electron diffraction tomography and X-ray powder diffraction on photoredox catalyst PDI
2019
N,N-Bis(2,6-diisopropylphenyl)-perylene-3,4,9,10-bis(dicarboximide) (PDI-iPr) is starting to be widely used as a metal-free homogeneous photoredox catalyst. The crystal structure was determined by a combination of electron diffraction tomography and X-ray powder diffraction and further validated by DFT-D calculations. Surprisingly, the molecular geometry of PDI-iPr leads to voids in the packing.
Crystal Structures and Polymorphism of Nickel and Copper Coordination Polymers with Pyridine Ligands
2014
The crystal structures of a series of pyridine coordination polymers [MIICl2(C5H5N)x]n (M = Ni, Cu), prepared via thermal decomposition are reported. [NiCl2(C5H5N)4] (1) decomposes stepwise via [NiCl2(C5H5N)2]n (2), [NiCl2(C5H5N)]n (3), and [NiCl2(C5H5N)2/3]n (4), to NiCl2 with increasing temperature. The thermal decomposition of [CuCl2(C5H5N)2]n (5), progresses via two polymorphs of [CuCl2(C5H5N)]n (6a and 6b), and [CuCl2(C5H5N)2/3]n (7), to CuCl2. The compounds 3, 4, and 7 were prepared as pure phases. All crystal structures were determined by X-ray powder diffraction. Notably, the crystal structures of the polymorphs 6a and 6b were determined from powder diffraction data of a mixture of …
CCDC 1503642: Experimental Crystal Structure Determination
2016
Related Article: Yaşar Krysiak, Lothar Fink, Thomas Bernert, Jürgen Glinnemann, Martin Kapuscinski, Haishuang Zhao, Edith Alig, Martin U. Schmidt|2014|Z.Anorg.Allg.Chem.|640|3190|doi:10.1002/zaac.201400505
CCDC 1503641: Experimental Crystal Structure Determination
2016
Related Article: Yaşar Krysiak, Lothar Fink, Thomas Bernert, Jürgen Glinnemann, Martin Kapuscinski, Haishuang Zhao, Edith Alig, Martin U. Schmidt|2014|Z.Anorg.Allg.Chem.|640|3190|doi:10.1002/zaac.201400505
CCDC 1857633: Experimental Crystal Structure Determination
2019
Related Article: Alexander Bodach, Haishuang Zhao, Nai Liu, Edith Alig, Georg Manolikakes, Ute Kolb, Lothar Fink|2019|CrystEngComm|21|2571|doi:10.1039/C8CE02026D
CCDC 1503643: Experimental Crystal Structure Determination
2016
Related Article: Yaşar Krysiak, Lothar Fink, Thomas Bernert, Jürgen Glinnemann, Martin Kapuscinski, Haishuang Zhao, Edith Alig, Martin U. Schmidt|2014|Z.Anorg.Allg.Chem.|640|3190|doi:10.1002/zaac.201400505
CCDC 1503639: Experimental Crystal Structure Determination
2016
Related Article: Yaşar Krysiak, Lothar Fink, Thomas Bernert, Jürgen Glinnemann, Martin Kapuscinski, Haishuang Zhao, Edith Alig, Martin U. Schmidt|2014|Z.Anorg.Allg.Chem.|640|3190|doi:10.1002/zaac.201400505
CCDC 1503640: Experimental Crystal Structure Determination
2016
Related Article: Yaşar Krysiak, Lothar Fink, Thomas Bernert, Jürgen Glinnemann, Martin Kapuscinski, Haishuang Zhao, Edith Alig, Martin U. Schmidt|2014|Z.Anorg.Allg.Chem.|640|3190|doi:10.1002/zaac.201400505