A5003695074- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Electron and X-Ray Spectroscopy Techniques
- Organometallic Complex Synthesis and Catalysis
- X-ray Spectroscopy and Fluorescence Analysis
- Carbon dioxide utilization in catalysis
- Asymmetric Hydrogenation and Catalysis
- Catalytic Cross-Coupling Reactions
- Aerogels and thermal insulation
- Surface Modification and Superhydrophobicity
- 2D Materials and Applications
- Machine Learning in Materials Science
- Analytical chemistry methods development
- Synthetic Organic Chemistry Methods
- Silicone and Siloxane Chemistry
- Fullerene Chemistry and Applications
- Coordination Chemistry and Organometallics
- Nanoplatforms for cancer theranostics
- Advancements in Battery Materials
- Metal complexes synthesis and properties
- Ferrocene Chemistry and Applications
- Surfactants and Colloidal Systems
- Molecular Junctions and Nanostructures
- Copper Interconnects and Reliability
- Covalent Organic Framework Applications
A. N. Nesmeyanov Institute of Organoelement Compounds
2019-2024
N.D. Zelinsky Institute of Organic Chemistry
2020
Russian Academy of Sciences
2011
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...
Abstract Metastable modification of MoS 2 (1T) is widely recognized as a hopeful non‐precious electrocatalyst in hydrogen production. This paper describes an approach to impart superambient temperature stability 1T‐MoS by incorporating it 2D hybrid architecture with cationic monomolecular phenanthrolinium (PhenH + ) hydrate layers. The atomic structure and bonding interactions the assembled revealed PXRD, TEM, XPS, Raman UV‐Vis spectroscopy data coupled DFT calculations quantum theory atoms...
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...
The activation of silica-supported Ti(NEt 2 ) 4 with anilines gives an efficient, versatile and readily accessible oxo/imido heterometathesis catalyst.
Results of x-ray fluorescence analysis several organic manganese compounds are used to study and elucidate the sources errors in a non-destructive technique by method external standard with dilution accepted practice elemental at Institute Organoelement Compounds Russian Academy Sciences. Metrological differences occurred when using emulsion polystyrene chromatographic cellulose as diluents discussed.
Zr imido chemistry: well-defined silica-supported complexes via Surface Organometallic Chemistry, oxo/imido heterometathesis and comparison with Ti analogs.
X-ray fluorescence analysis (XRF)based on a technique of direct external standard with the use one reference sample is traditionally used in laboratory microanalysis (INEOS RAS) for determination metals composition novel organometallic compounds and polymers. Preparation samples-emitters consists 150 – 200-fold dilution substances emulsion polystyrene (PS), since amount substance limited to 10 15 mg. With this XRF are carried out concentration range metal from 0.005 0.5 %, where analytical...
Expansion of the works on synthesis and study structure new intercalation compounds based molybdenum disulfide (MD)with various organic molecules inclusions in layered structures, entails necessity developing methods for rapid analysis those content. We developed a method RF such using bulk range 28 – 50% Mo Analytical signals were measured K α line VRA-30 spectrometer («Karl Zeiss», Jena Germany, X-ray tube with Rh-anode operated mode 35 kV, 15 mA). The content is calculated derived...
Разработан эффективный метод синтеза силоксановых аэрогелей гибридного строения с встроенными в их полимерную структуру ферроценовыми фрагментами. На начальном этапе получали гель путем поликонденсации тетраэтоксисилана и ферроценсодержащих алкоксисиланов, катализируемой BF3 · Et2O ацетоне. Превращение гелей аэрогели проводилось использованием сверхкритического диоксида углерода (СК-CO2). Образцы были подробно охарактеризованы методами мессбауэровской спектроскопии адсорбции азота,...
Nickel(II) complexes with pyrazole-based ligands are widely employed in catalysis of ethyleneoligomerization and subsequent Friedel-Crafts alkylation toluene. We have prepared ten newnickel(II) dibromide various substituted bis(azolyl)methanes. They beencharacterized using 1 H NMR, IR, MALDI-TOF elemental analysis. The structures threecomplexes been unambiguously established X-ray diffraction. It was found that thesecomplexes the presence Et 2 AlCl or 3 Al Cl active both ethylene...
When developing new organometallic compounds, the necessity for a rapid control of elemental composition substances obtained arises at different stages synthesis. This makes urgent goal speeding up procedure analysis. The XFA method is traditionally used in laboratory microanalysis when determining metal content substance according to an external standard with dilution sample emulsion polystyrene. Precise weighing and diluent required manufacture analyzed reflector samples, since factor...