Martin Jansen
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View article: Dermatologist-like explainable AI enhances melanoma diagnosis accuracy: eye-tracking study
Dermatologist-like explainable AI enhances melanoma diagnosis accuracy: eye-tracking study Open
Artificial intelligence (AI) systems substantially improve dermatologists’ diagnostic accuracy for melanoma, with explainable AI (XAI) systems further enhancing their confidence and trust in AI-driven decisions. Despite these advancements,…
View article: Ferrocene‐Based Ozonide: [CpFeCpCH<sub>2</sub>NMe<sub>3</sub>]O<sub>3</sub>·1.47 NH<sub>3</sub>, Synthesis and Crystal Structure Analysis
Ferrocene‐Based Ozonide: [CpFeCpCH<sub>2</sub>NMe<sub>3</sub>]O<sub>3</sub>·1.47 NH<sub>3</sub>, Synthesis and Crystal Structure Analysis Open
The highly reactive ozonide anion could be stabilized for the first time with a ferrocene‐based cation resulting in the title compound [CpFeCpCH 2 NMe 3 ]O 3 ·1.47 NH 3 . The target compound was thoroughly characterized by X‐ray diffractio…
View article: Vom Licht zum Molekül: Entschlüsselung des Mechanismus der Vitamin‐D3‐Umwandlung in einer <i>in vitro</i> Studie
Vom Licht zum Molekül: Entschlüsselung des Mechanismus der Vitamin‐D3‐Umwandlung in einer <i>in vitro</i> Studie Open
View article: Investigation of Pyrrolidinium‐based Superoxides and Ozonides
Investigation of Pyrrolidinium‐based Superoxides and Ozonides Open
Pyrrolidinium‐based cations were systematically modified to investigate their influence on ozonide and superoxide anions and to understand the scattering of experimentally determined dimensions of these radical anions. Hence, 1‐ethyl‐1‐met…
View article: Entangled orbital, spin, and ferroelectric orders in $p$-electron magnet CsO$_2$
Entangled orbital, spin, and ferroelectric orders in $p$-electron magnet CsO$_2$ Open
Alkali superoxides differ from conventional transition metal magnets, exhibit magnetism from partially occupied oxygen molecular $π^*$-orbitals. Among them, CsO$_2$ stands out for its potential to exhibit novel quantum collective phenomena…
View article: Dermatologist-like explainable AI enhances melanoma diagnosis accuracy: eye-tracking study
Dermatologist-like explainable AI enhances melanoma diagnosis accuracy: eye-tracking study Open
Artificial intelligence (AI) systems have substantially improved dermatologists' diagnostic accuracy for melanoma, with explainable AI (XAI) systems further enhancing clinicians' confidence and trust in AI-driven decisions. Despite these a…
View article: Electronic and magnetic phase diagram of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">S</mml:mi><mml:msub><mml:mi mathvariant="normal">r</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi>Fe</mml:mi><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math> at high pressure: A synchrotron Mössbauer study
Electronic and magnetic phase diagram of at high pressure: A synchrotron Mössbauer study Open
Transition metal (TM) oxides with high oxidation state TM ions exhibit a variety of unconventional electronic and magnetic states owing to electron correlations effects combined with highly covalent TM–O bonding. Here, we have studied the …
View article: Formation of Peroxynitrite, [O−N−O−O]<sup>−</sup>, via a Cascade of Reactions between Ozonide and Ammonia
Formation of Peroxynitrite, [O−N−O−O]<sup>−</sup>, via a Cascade of Reactions between Ozonide and Ammonia Open
We report on an unexpected reaction between ammonia and potassium ozonide dissolved in liq. NH 3 resulting in the formation of peroxynitrite, [ONOO] − , which exclusively happens in the presence of a specific partially fluorinated aniline‐…
View article: [Me <sub>3</sub> N(C <sub>6</sub> H <sub>3</sub> (CF <sub>3</sub> ) <sub>2</sub> )][BF <sub>4</sub> ] and [Me <sub>3</sub> N(C <sub>6</sub> H <sub>3</sub> (CH <sub>3</sub> ) <sub>2</sub> )][BF <sub>4</sub> ], as potential synthons for non-covalent supramolecular assembly
[Me <sub>3</sub> N(C <sub>6</sub> H <sub>3</sub> (CF <sub>3</sub> ) <sub>2</sub> )][BF <sub>4</sub> ] and [Me <sub>3</sub> N(C <sub>6</sub> H <sub>3</sub> (CH <sub>3</sub> ) <sub>2</sub> )][BF <sub>4</sub> ], as potential synthons for non-covalent supramolecular assembly Open
The compounds [Me 3 N(C 6 H 3 (CF 3 ) 2 )][BF 4 ] and [Me 3 N(C 6 H 3 (CH 3 ) 2 )][BF 4 ] were synthesized from commercially available starting materials and fully characterized by single-crystal X-ray diffraction, NMR, IR and Raman spectr…
View article: Crystal and magnetic structure of cesium superoxide
Crystal and magnetic structure of cesium superoxide Open
Cesium superoxide is magnetic, due to the half-occupied $\ensuremath{\pi}$ orbitals on its O${}_{2}^{\ensuremath{-}}$ molecules. Neutron diffraction experiments done here find that the crystal structure undergoes a sequence of transitions …
View article: CCDC 2176412: Experimental Crystal Structure Determination
CCDC 2176412: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: Issue Information
Issue Information Open
Despite warnings, co-medication with proton pump inhibitors and dasatinib is common in chronic myeloid leukemia
View article: Crystal structure and properties of the magnetically frustrated B‐site ordered Sr<sub>2</sub>CaOsO<sub>6</sub> double perovskite
Crystal structure and properties of the magnetically frustrated B‐site ordered Sr<sub>2</sub>CaOsO<sub>6</sub> double perovskite Open
The B‐site ordered double perovskite Sr 2 CaOsO 6 has been synthesized by a solid‐state reaction under ambient pressure. Sr 2 CaOsO 6 is isostructural to Sr 2 NaOsO 6 and Sr 2 CaReO 6 , thus crystallizes in the monoclinic space group P 2 1…
View article: The crystal and magnetic structure of cesium superoxide
The crystal and magnetic structure of cesium superoxide Open
CsO2 is a member of the family of alkali superoxides (formula AO2 with A= Na, K, Rb and Cs) that exhibit magnetic behavior arising from open $p$-shell electrons residing on O2- molecules. We use neutron diffraction to solve the crystal and…
View article: High-Density Lipoprotein function is modulated by the SARS-CoV-2 spike protein in a lipid-type dependent manner
High-Density Lipoprotein function is modulated by the SARS-CoV-2 spike protein in a lipid-type dependent manner Open
There is a close relationship between the SARS-CoV-2 virus and lipoproteins, in particular high-density lipoprotein (HDL). The severity of the coronavirus disease 2019 (COVID-19) is inversely correlated with HDL plasma levels. It is known …
View article: Habitat destruction threatens jaguars in a mixed land use region of eastern Bolivia
Habitat destruction threatens jaguars in a mixed land use region of eastern Bolivia Open
Large carnivores such as the jaguar (Panthera onca) are particularly susceptible to population decline and local extinction as a result of habitat loss. Here, we report on the long-term monitoring of a local jaguar population in a mixed la…
View article: Cover Feature: [NEt<sub>3</sub>Me][O<sub>3</sub>], Synthesis, Crystal Growth and Crystal Structure Analysis (Z. Anorg. Allg. Chem. 21/2022)
Cover Feature: [NEt<sub>3</sub>Me][O<sub>3</sub>], Synthesis, Crystal Growth and Crystal Structure Analysis (Z. Anorg. Allg. Chem. 21/2022) Open
Over time, several crystal structure analyses on ionic ozonides have been reported. As a puzzling and still debated outcome, the dimensions as found for the ozonide radical anion show a conspicuous spread. Inspecting crystal structures as …
View article: CSD 2179057: Experimental Crystal Structure Determination
CSD 2179057: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: [Ag(μ‐<i>en</i>)][ReO<sub>4</sub>]: An Intermediate during Preparation of the Ethylene Epoxidation Catalyst
[Ag(μ‐<i>en</i>)][ReO<sub>4</sub>]: An Intermediate during Preparation of the Ethylene Epoxidation Catalyst Open
Preparation of a catalyst for the ethylene oxide production requires impregnation of a porous corundum support with an aqueous silver ethylene diamine oxalate complex solution, to which among others NH 4 [ReO 4 ] is added. Here we report o…
View article: Synergistic Interaction between Attractive<i>d</i><sup>10</sup>Bonding and Localized Excess Electrons, the Cases of Subvalent Ag<sub>5</sub>SiO<sub>4</sub>and Ag<sub>5</sub>GeO<sub>4</sub>
Synergistic Interaction between Attractive<i>d</i><sup>10</sup>Bonding and Localized Excess Electrons, the Cases of Subvalent Ag<sub>5</sub>SiO<sub>4</sub>and Ag<sub>5</sub>GeO<sub>4</sub> Open
The compositions of Ag 5 SiO 4 and Ag 5 GeO 4 contravene classical rules of chemical valence, while the stoichiometric coefficients are integer. In order to disentangle the underlying bonding scheme, comparative studies at the two virtuall…
View article: CSD 2063725: Experimental Crystal Structure Determination
CSD 2063725: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: CCDC 2181389: Experimental Crystal Structure Determination
CCDC 2181389: Experimental Crystal Structure Determination Open
An entry from the Cambridge Structural Database, the world’s repository for small molecule crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available …
View article: [NEt<sub>3</sub>Me][O<sub>3</sub>], Synthesis, Crystal Growth and Crystal Structure Analysis
[NEt<sub>3</sub>Me][O<sub>3</sub>], Synthesis, Crystal Growth and Crystal Structure Analysis Open
[NEt 3 Me][O 3 ] was obtained for the first time by an ion exchange reaction in liquid ammonia. It was thoroughly characterized by X‐Ray diffraction [ P 2 1 ; a =598.51(4) pm, b =1032.03(7) pm, c =723.83(6) pm, β =92.677(3)°, R =0.0384, 15…
View article: CSD 2181187: Experimental Crystal Structure Determination
CSD 2181187: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: New Sr<sub>9</sub>Os<sub>5</sub>O<sub>23</sub>, Made Up of Quasi 1D and 2D Fragments of the Perovskite Structure
New Sr<sub>9</sub>Os<sub>5</sub>O<sub>23</sub>, Made Up of Quasi 1D and 2D Fragments of the Perovskite Structure Open
Sr9Os5O23, a new strontium osmate, has been synthesized as a coarse-crystalline material from SrO2 and Os, in a SrCl2 flux. It crystallizes in a rather large monoclinic cell with space group, C2/c. It is a member of a newly identified homo…
View article: CSD 2181193: Experimental Crystal Structure Determination
CSD 2181193: Experimental Crystal Structure Determination Open
An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely availabl…
View article: Buckled Honeycomb Lattice Compound Sr<sub>3</sub>CaOs<sub>2</sub>O<sub>9</sub> Exhibiting Antiferromagnetism above Room Temperature
Buckled Honeycomb Lattice Compound Sr<sub>3</sub>CaOs<sub>2</sub>O<sub>9</sub> Exhibiting Antiferromagnetism above Room Temperature Open
International audience
View article: Thermally and Optically Activated Migration of Charge Carriers in Alkali Metal Sesquioxides
Thermally and Optically Activated Migration of Charge Carriers in Alkali Metal Sesquioxides Open
The alkali metal sesquioxides A 4 O 6 (A=K, Rb, Cs) are mixed‐valent with respect to oxygen and display several degrees of electronic and structural freedom, which give rise to diverse transport and ordering processes. We report on analyse…
View article: New Buckled Honeycomb Lattice Compound Sr3CaOs2O9 Exhibiting Antiferromagnetism above Room Temperature
New Buckled Honeycomb Lattice Compound Sr3CaOs2O9 Exhibiting Antiferromagnetism above Room Temperature Open
Synthesis, crystal structure and magnetic properties of a new 2:1 ordered triple perovskite Sr3CaOs2O9 are reported. The compound crystallizes in P21/c space group and features a unique buckled honeycomb lattice of osmium. It exhibits long…
View article: Spiral magnetism, spin flop, and pressure-induced ferromagnetism in the negative charge-transfer-gap insulator <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>FeO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow></mml:math>
Spiral magnetism, spin flop, and pressure-induced ferromagnetism in the negative charge-transfer-gap insulator Open
International audience