A5021602359- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Organometallic Complex Synthesis and Catalysis
- Synthetic Organic Chemistry Methods
- Carbon dioxide utilization in catalysis
- Asymmetric Hydrogenation and Catalysis
- Synthesis and Catalytic Reactions
- Metal complexes synthesis and properties
- Catalytic C–H Functionalization Methods
- Cyclopropane Reaction Mechanisms
- Zeolite Catalysis and Synthesis
- Crystallography and molecular interactions
- Mesoporous Materials and Catalysis
- Advanced NMR Techniques and Applications
- Metal-Organic Frameworks: Synthesis and Applications
- Coordination Chemistry and Organometallics
- Sulfur-Based Synthesis Techniques
- Catalytic Cross-Coupling Reactions
- N-Heterocyclic Carbenes in Organic and Inorganic Chemistry
- Chemical Synthesis and Analysis
- Cancer Research and Treatments
- Thermal and Kinetic Analysis
- Radiopharmaceutical Chemistry and Applications
- Cancer Cells and Metastasis
- Energetic Materials and Combustion
A. N. Nesmeyanov Institute of Organoelement Compounds
2012-2024
Addgene
2022-2023
Nizhny Novgorod State Pedagogical University
2022
Nizhny Novgorod State Technical University
2022
Russian Academy of Sciences
2019-2021
Humboldt-Universität zu Berlin
2012
Bernstein Center for Computational Neuroscience Berlin
2012
Abstract Time‐resolved 13 C, 23 Na, 27 Al, and 29 Si MAS NMR has been applied in situ for monitoring the hydrothermal synthesis of zeolite BEA. Isotopic labelling with C isotopes used to follow fate siliceous species structure directing agent (( CH 3 −CH 2 ) 4 NOH). Two mechanistic pathways, namely solution‐mediated solid–solid hydrogel rearrangement have distinguished two procedures studied. The mechanisms structure‐directing behavior TEA + cations reaction pathways elucidated. results show...
Background PD-1 checkpoint blockade therapy (CBT) has greatly benefited patients with select solid tumors and lymphomas but limited efficacy against diffuse large B-cell lymphoma (DLBCL). Because numerous inhibitory receptors have been implicated in driving tumor-specific T cell dysfunction, we hypothesized that combinatorial CBT would enhance the activity of anti-PD-1-based DLBCL. immunoglobulin immunoreceptor tyrosine-based motif domain (TIGIT) is a coinhibitory receptor expressed on...
The synthetic routes to Group 4–9 transition metal imido complexes are considered. Both common and less approaches analysed. classification of the methods for synthesis is based on way formation ligand, change in oxidation state during imidation type reagent.
Grafting Ta(═NtBu)(CH2CMe2Ph)3 onto the surface of silica partially dehydroxylated at 300 °C leads to formation imido complex (≡SiO)2Ta(═NtBu)(CH2CMe2Ph) as a major species, which was characterized with EXAFS, 13C CP/MAS NMR, diffuse reflectance FTIR, elemental analyses, and chemical reactivity. The obtained material acts an efficient heterogeneous catalyst for various oxo/imido heterometathesis transformations: imidation ketones DMF N-sulfinylamines condensation into sulfurdiimines phenyl...
Abstract Grafting Ti(=N t Bu)(Me 2 Pyr) (py) (Me Pyr= 2,5‐dimethylpyrrolyl, py=pyridine) onto the surface of silica partially dehydroxylated at 700 °C gives well‐defined silica‐supported Ti imido complex (≡SiO)Ti(=N Pyr)(py) , which is fully characterized by IR and solid‐state NMR spectroscopy as well elemental mass balance analyses. While stoichiometric imido‐transfer reactivity typical for imides, obtained unique in that it enables catalytic transformations involving oxo intermediates. In...
We expand the series of well-defined silica-supported titanium imido complexes general formula (≡SiO)Ti(═NtBu)X(py)n prepared via surface organometallic chemistry in order to analyze effect X ligand on their catalytic properties. Two new complexes, (≡SiO)Ti(═NtBu)Cl(py)2 (2s) and (≡SiO)Ti(═NtBu)Cp(py) (3s), have been characterized with physicochemical techniques, performance oxo/imido heterometathesis other imido-transfer reactions has studied compared that previously reported catalyst...
Time-resolved in situ 13C, 27Al, and 29Si MAS NMR ex XRD, X-ray fluorescence, TG studies have been applied for the elucidation of mechanisms hydrothermal synthesis zeolite BEA from a clear solution dense hydrogel. Isotopic labeling with 13C isotopes has used to follow fate siliceous species structure-directing agent ((13CH3-CH3)4NOH)). The results point different mechanistic pathways depending on silicate speciation initial reaction mixture: (i) an aggregation/nucleation process mixture...
We report the first examples of catalytic oxo/imido heterometathesis reactions that involve carboxylic acid derivatives (lactones).
The activation of silica-supported Ti(NEt 2 ) 4 with anilines gives an efficient, versatile and readily accessible oxo/imido heterometathesis catalyst.
Triphenylphosphine facilities ionization of Ni(<sc>ii</sc>) complexes with bis(3,5-dimethylpyrazol-1-yl)metane, which results in highly active catalytic systems for ethylene dimerization.
The unprecedented observation of odd carbon number olefins is reported during nickel‐ catalyzed ethylene oligomerization. Two complexes based on Co (II) and Ni with novel tetradentate heteroscorpionate ligand have been synthesized fully characterized. These showed the ability to oligomerize upon activation various organoaluminum compounds (Et 2 AlCl, Et 3 Al Cl , EtAlCl MMAO). catalytic systems were sufficiently more active (up 1900 kg·mol (Ni) −1 ·h ·atm ) than analogs found be strongly...
Abstract We report here the synthesis of 4‐coordinate Ti imido complexes Ti(=N t Bu)(OAr Bu ) 2 (py) ( and )(Me Pyr)(py) 3 (Ar = O ‐2,6‐ ‐4‐MeC 6 H , Me Pyr=2,5‐dimethylpyrrolyl) study their grafting onto surface partially dehydroxylated silica with aim to prepare aryloxide species. Study resulting materials IR, solid‐state NMR, elemental mass balance analyses demonstrates that bis ‐ complex leads a predominant formation silica‐supported amide (≡SiO)Ti(NH from protonation ligand silanols...
Cooperative interactions between ion channels are known to exist, but have so far received relatively little attention in the study of excitable membranes. Based on bifurcation analysis and stochastic simulations an extended Morris-Lecar model, we show that cooperativity anticooperativity can modify range sustained firing cell-intrinsic noise, induce multistability, account for a number experimental observations, including prolongation action-potential duration. We hypothesize channel could...
Abstract Time‐resolved 13 C, 23 Na, 27 Al, and 29 Si MAS NMR has been applied in situ for monitoring the hydrothermal synthesis of zeolite BEA. Isotopic labelling with C isotopes used to follow fate siliceous species structure directing agent (( CH 3 −CH 2 ) 4 NOH). Two mechanistic pathways, namely solution‐mediated solid–solid hydrogel rearrangement have distinguished two procedures studied. The mechanisms structure‐directing behavior TEA + cations reaction pathways elucidated. results show...