A5058879650- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Organoboron and organosilicon chemistry
- Crystallography and molecular interactions
- Synthesis and Properties of Aromatic Compounds
- Luminescence and Fluorescent Materials
- Functional Brain Connectivity Studies
- Advanced Neuroimaging Techniques and Applications
- Catalytic Cross-Coupling Reactions
- Advanced MRI Techniques and Applications
- Supramolecular Self-Assembly in Materials
- Metal-Organic Frameworks: Synthesis and Applications
- Advancements in Solid Oxide Fuel Cells
- Mitochondrial Function and Pathology
- Polyoxometalates: Synthesis and Applications
- Organic Light-Emitting Diodes Research
- Magnetism in coordination complexes
- Chemical Synthesis and Characterization
- Non-Destructive Testing Techniques
- Conducting polymers and applications
- Synthesis and properties of polymers
- Metal Extraction and Bioleaching
- Metal complexes synthesis and properties
- Optical Imaging and Spectroscopy Techniques
- Hydrogen embrittlement and corrosion behaviors in metals
Max Planck Institute for Human Cognitive and Brain Sciences
2024-2025
Leipzig University
2024-2025
Heinrich Heine University Düsseldorf
2024-2025
Düsseldorf University Hospital
2024-2025
Goethe University Frankfurt
2014-2020
Institute of Inorganic Chemistry of the Slovak Academy of Sciences
2018
Rutgers, The State University of New Jersey
2016
Hong Kong University of Science and Technology
2000-2005
University of Hong Kong
2000-2005
Chinese Academy of Sciences
2000-2001
Abstract Boron has one valence electron less than a carbon atom and an available vacant p z orbital. The incorporation of sp 2 ‐hybridized boron atoms into the host lattice polycyclic aromatic hydrocarbon (PAH) is formally related to oxidative doping. A boron‐containing B‐PAH energetically low‐lying LUMO narrow HOMO–LUMO gap, which renders it strong Lewis acid/electron acceptor promotes fluorescence in visible range electromagnetic spectrum. Many methods have been developed access B‐PAHs...
Abstract Ten examples of unsymmetrically benzannulated, boron‐doped polycyclic aromatic hydrocarbons (B‐PAHs) were prepared by a one‐pot protocol using 4,5‐dichloro‐1,2‐bis(trimethylsilyl)benzene ( 1 ), BBr 3 , and selected PAHs—among them anthracene, benzo[ ]pyrene, biphenylene, fluoranthene. After mesitylation at the boron centers, resulting air‐ water‐stable products investigated H/ 11 B{ H}/ 13 C{ H} NMR spectroscopy, X‐ray crystallography, cyclic voltammetry, UV/Vis absorption/emission...
Pyrolysis of hyperbranched poly[1,1'-ferrocenylene(methyl)silyne] (5) yields mesoporous, conductive, and magnetic ceramics (6). Sintering at high temperatures (1000−1200 °C) under nitrogen argon converts 5 to 6N 6A, respectively, in ∼48−62% yields. The ceramization are higher than that (∼36%) its linear counterpart poly[1,1'-ferrocenylene(dimethyl)silylene] (1), revealing the polymer is superior one as a ceramic precursor. products 6 characterized by SEM, XPS, EDX, XRD, SQUID. It found...
L-Tartrate ions can endure hydrothermal conditions up to 160 °C form the robust, enantiopure open-framework coordination polymers [Ln2(L-TAR)3(H2O)2]3H2O, 1; addition of succinate results in formation related [Ln2(L-TAR)2(SUC)(H2O)2]5.5H2O, 2 with larger channels than 1, whereas racemic D/L-tartrate gives more condensed [Ln2(D/L-TAR)3(H2O)2], 3. TAR = [C4H4O6]2−.
Air- and water-stable, π-conjugated [−donor–acceptor−]n oligomers containing thiophene fragments as donors 9,10-dimesityl-9,10-dihydro-9,10-diboraanthracene (DBA(Mes)2) acceptor units were prepared through Stille-type C–C-coupling protocols. The reaction between 2,6-dibromo-DBA(Mes)2 (1), 2,7-dibromo-DBA(Mes)2 (2), 2-bromo-6,7-dimethyl-DBA(Mes)2 (3), 2,5-bis(trimethylstannyl)thiophene (7) furnished monodisperse, short-chain model systems 80 (2 × DBA(Mes)2, 1 2,5-thienylene) 81 (3 2 after GPC...
Abstract The human thalamus is a heterogeneous subcortical structure coordinating whole-brain activity. Investigations of its internal organization reveal differentiable subnuclei, however, consensus on subnuclei boundaries remains absent. Recent work suggests that thalamic additionally reflects continuous axes transcending nuclear boundaries. Here, we study how low-dimensional thalamocortical structural connectivity relate to intrathalamic microstructural features, functional connectivity,...
Abstract Functional gradients capture the organization of functional activity in cerebral cortex, delineating transitions from sensory to higher-order association areas. While group-level gradient patterns are well-characterized, biological mechanisms underlying individual variability remain poorly understood. Here, we integrate genetic, transcriptomic, and metabolic data across large-scale cohorts investigate basis their relevance neuropsychiatric conditions. Using twin-based heritability...
The helical chirality and self-assembling structures of an unnatural polymer, poly(p-ethynylbenzoyl-l-valine) (1), are readily manipulated by a simple environmental perturbation pH change. amino acid appendages l-valine create asymmetric force field, inducing the polyacetylene backbones to helically rotate, form intra- interchain hydrogen bonds, stabilizing screw-sense conformation polymer chains. exhibits large Cotton effect in methanol, which decreases with increase upon addition KOH into...
Doping of pentacene with two boron atoms leads to highly fluorescent compounds, which have successfully been used for OLED fabrication.
Abstract Ten examples of unsymmetrically benzannulated, boron‐doped polycyclic aromatic hydrocarbons (B‐PAHs) were prepared by a one‐pot protocol using 4,5‐dichloro‐1,2‐bis(trimethylsilyl)benzene ( 1 ), BBr 3 , and selected PAHs—among them anthracene, benzo[ ]pyrene, biphenylene, fluoranthene. After mesitylation at the boron centers, resulting air‐ water‐stable products investigated H/ 11 B{ H}/ 13 C{ H} NMR spectroscopy, X‐ray crystallography, cyclic voltammetry, UV/Vis absorption/emission...
Phenyltris(2-pyridyl)borates (Tpyb) are a promising class of tripodal "scorpionate"-type ligands with potential utility in the development transition-metal complexes interesting optical, electronic, or magnetic properties and as building blocks to metallosupramolecular polymers. We report here new "third-generation"-type Tpyb that contain different functional groups attached boron-bound aryl moiety. The synthesis, characterization, metal-ion complexation behavior iodo trimethylsilyl...
Abstract The human cerebral cortex shows hemispheric asymmetry, yet the microstructural basis of this asymmetry remains incompletely understood. Here, we probe layer-specific using one post-mortem male brain. Overall, anterior and posterior regions show leftward rightward respectively, but pattern varies across cortical layers. A similar anterior-posterior is observed in vivo Human Connectome Project ( N = 1101) T1w/T2w data, with average showing strongest similarity -based layer III....
Key structural and optoelectronic features of 2,3,6,7-tetraarylated diboraanthracenes were compared with those corresponding singly doubly ring-closed diboratetracenes -pentacenes.
Abstract The human thalamus is a bilateral and heterogeneous grey matter structure that plays crucial role in coordinating whole-brain activity. Investigations of its complex structural functional internal organization revealed to certain degree overlapping parcellations, however, consensus on thalamic subnuclei boundaries remains absent. Recent work suggests might additionally reflect continuous axes transcending nuclear boundaries. In this study, we used multimodal approach uncover how...
Abstract While macroscale brain asymmetry and its relevance for human cognitive function have been consistently shown, the underlying neurobiological signatures remain an open question. Here, we probe layer-specific microstructural of cortex using intensity profiles from post-mortem cytoarchitecture. An anterior-posterior cortical pattern left-right was found, varying across layers. A similar observed in vivo imaging, with showing strongest similarity layer III. Microstructural varied as a...
Vicinally diiodinated polycyclic aromatic hydrocarbons (I 2 ‐PAHs) are accessible from the corresponding diborylated B ‐PAHs through boron/iodine exchange. The have been prepared via twofold electrophilic borylation reactions templated by a vicinally disilylated benzene. Our protocol is applicable to fluorenes, acenes, annulated oligoaryls, and even [5]helicene. Using ‐naphthalene as example, we shown that reaction scope can, in principle, be expanded include synthesis of dibrominated...