A5001566527- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Magnetism in coordination complexes
- Lanthanide and Transition Metal Complexes
- Crystallography and molecular interactions
- Organometallic Complex Synthesis and Catalysis
- Synthesis and characterization of novel inorganic/organometallic compounds
- Metal complexes synthesis and properties
- Metal-Organic Frameworks: Synthesis and Applications
- Organoboron and organosilicon chemistry
- Chemical Thermodynamics and Molecular Structure
- Organophosphorus compounds synthesis
- Crystal structures of chemical compounds
- Organometallic Compounds Synthesis and Characterization
- Luminescence Properties of Advanced Materials
- Carbon dioxide utilization in catalysis
- Structural and Chemical Analysis of Organic and Inorganic Compounds
- Catalysis and Oxidation Reactions
- Inorganic Chemistry and Materials
- Inorganic Fluorides and Related Compounds
- Synthesis and Reactions of Organic Compounds
- Luminescence and Fluorescent Materials
- Fluorine in Organic Chemistry
- Advanced Chemical Physics Studies
- Metal-Catalyzed Oxygenation Mechanisms
G.A. Razuvaev Institute of Organometallic Chemistry
2016-2025
Russian Academy of Sciences
2014-2016
This article presents findings on the synthesis and crystal structure analysis of 5-nitro-4-(4-methoxyphenoxy)phthalonitrile. The was meticulously refined using X-ray diffraction techniques, which allowed for a detailed examination molecular arrangement within crystal. manuscript elaborates significant intermolecular intramolecular interactions that contribute to overall packing, highlighting how these influence stability properties material.
A new monoiminoacenaphthenone 3,5-(CF3)2C6H3-mian (complex 2) was synthesized and further exploited, along with the already known dpp-mian, to obtain oxidovanadium(IV) complexes [VOCl2(dpp-mian)(CH3CN)] (3) [VOCl(3,5-(CF3)2C6H3-bian)(H2O)][VOCl3(3,5-(CF3)2C6H3-bian)]·2.85DME (4) from [VOCl2(CH3CN)2(H2O)] (1) or [VCl3(THF)3]. The structure of all compounds determined using X-ray structural analysis. vanadium atom in these structures has an octahedral coordination environment. Complex 4...
Efficient energy transfer in Yb and room temperature phosphorescence Gd complexes with readily oxidizable thiophenolate ligands were observed.
Iminopyridine modified by TEMPO nitroxide was utilized for the synthesis of an octahedral bis(o-semiquinonato)cobalt complex. Variable-temperature magnetic susceptibility measurements detect a valence tautomeric transformation in temperature range 200–300 K. A reproducible hysteresis loop about 40 K width is observed on moment dependence transition region. Differential scanning calorimetry confirm different temperatures phase transitions accompanying valence–tautomeric upon heating and...
In order to prepare the first lanthanide coordination polymers (CPs) based on ditopic sulfide ligands, benzo[1,2-d:4,5-d′]bisthiazole-2,6(3H,7H)-dithione (H2L) was used as a linker. The reactions of silylamides Ln[N(SiMe3)2]3 (Ln = Nd, Gd, Er, and Yb) with H2L result in formation soluble dimethyl sulfoxide (DMSO) ionic salts [Ln(DMSO)8][L]1.5 [Ln Nd (1), Gd (2), Er (3), Yb (4)]. Due lack anionic compounds 1, 3, 4 do not show sensitized metal-centered photoluminescence (PL), while compound 2...
The reaction of PCl3 with diethyl ketazine and 4-phenylcyclohexanone azine results in the formation 1,4-dichloro-3a,6a-diaza-1,4-diphosphapentalenes which were reduced by magnesium THF to give corresponding diazadiphosphapentalenes EtMeDDP PhcHexDDP, containing two-coordinate phosphorus atoms. According CVA data, new are strong electron donors showing oxidation peak potentials at 0.34 0.10 V, respectively, (vs. Ag/AgCl). Interaction 1,2,4,5-tetracyanobenzene (TCNB) obtained any stoichiometry...
Lanthanide ate complexes with perfluorinated 2-mercaptobenzothiazole show long-lived NIR PL in hydrogen-rich media.
The reactions of H2AlCl with [(dpp-Bian)Na(Et2O)n] and [(ArBIG-Bian)Na(THF)] produce respective aluminum hydrides supported by radical-anionic 1,2-bis(arylimino)acenaphthene ligands, [(dpp-Bian)AlH2] (1) [(ArBIG-Bian)AlH2(THF)] (2) (dpp-Bian = 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene); ArBIG-Bian 1,2-bis[(2,6-dibenzhydryl-4-methylphenyl)imino]acenaphthene). reaction 1 CO2 proceeds reduction both C═O bonds results in diolate [{(dpp-Bian)Al(μ-O2CH2)}2] (3). Complex 2 reacts to...
The reactions of monomeric [(dpp-Bian)M(thf)4] (M = Ca (1a), Sr (1b); dpp-Bian 1,2-bis[(2,6-diisopropylphenyl)imino]acenaphthene) with 4,4′-bipyridyl (4,4′-bipy) proceed electron transfer from dpp-Bian2– to 4,4′-bipy0 afford calcium and strontium complexes containing simultaneously radical-anionic dpp-Bian– 4,4′-bipy– ligands. In tetrahydrofuran (thf) the result in 1D coordination polymers [{(dpp-Bian)M(4,4′-bipy)(thf)2}·4thf]n (2a), (2b)), while a thf/benzene mixture reaction between 1a...
Recently, the enhanced interest in water-soluble aminohydroximate Ln(III)-Cu(II) metallacrowns (MC) is largely due to their fascinating structural chemistry, diverse properties and ease of synthesis. We examined praseodymium(III) alaninehydroximate complex Pr(H2O)4[15-MCCu(II)Alaha-5]·3Cl (1) as a highly effective chiral lanthanide shift reagent for NMR analysis biologically relevant (R/S)-mandelate (MA) anions aqueous media. The R-MA S-MA enantiomers can be easily discriminated presence...
A set of new lanthanide fluoroalkoxides have been synthesized and characterized, some them revealed ultraviolet photoluminescence.
New unsymmetrical monoterpenylhetaryl disulfides based on heterocyclic and monoterpene thiols were synthesized for the first time in 48-88% yields. Hydrolysis of with fragments methyl esters 2-mercaptonicotinic acid was carried out 73-95% The obtained compounds evaluated antioxidant, antibacterial, antifungal activity, cytotoxicity mutagenicity.
This work demonstrates various ways of binding and transformation heteroallenes by acenaphthenediimine aluminum oxide.
The dithiocarbamate derivative [(Ar BIG -bian)Yb{SC(S)NMe 2 }(dme)] (2) exhibits a unique gradual solid-state redox-isomerism that involves temperature-induced reversible electron transfer between the metal and ligand.
The bright metal-centered emission of Yb mercaptobenzothiazolates was observed and explained by the redox excitation mechanism.
Novel sterically hindered catechols of the type 3-(RN═CH)-4,6-DBCatH2 with iminoalkyl or iminoaryl groups in third position aromatic ring have been synthesized and characterized detail. The o-benzoquinones 3-(RN═CH)-4,6-DBBQ by oxidation corresponding catechols. methylimino-substituted catechol K3[Fe(CN)6] alkaline medium leads to formation two products: o-quinone diene–dione, product water addition o-quinone. Some react methanol yield products addition. A prototropic tautomerism is...
Herein, we present the synthesis, single-crystal X-ray structures, and spectroscopic properties for 1:1 donor–acceptor complexes of 1,2,4,5-tetracyanobenzene (TCNB) with annelated 3a,6a-diaza-1,4-diphosphapentalenes (DDPs) based on cyclohexanone azine (2) tetralone (4). These are first an organic π-acceptor donor phosphorus heterocycles. According to study, DDPs TCNB molecules alternately stacked interplanar distances 3.335 3.404 Å 2 4, respectively, which suitable intermolecular π···π...
The reduction of diolate [{(dpp-bian)Al(μ-O2CH2)}2] (1), bearing a redox-active acenaphthene-1,2-diimine ligand (dpp-bian = 1,2-bis[(2,6-diisopropylphenyl)imino]-acenaphthene), by boranes has been studied. reaction 1 with HBpin proceeds the C–O bonds in −O–CH2–O– fragments and results [{(dpp-bian)Al(OCH3)}(μ-O){Al(OBpin)(dpp-bian)}] (2) pinBOCH3. HBcat leads to formation compound [{(dpp-bian)Al(μ-Cat)}2] (3) (CH3OBO)3. BH3·SMe2 reduces form complex...
Abstract A number of two‐deck dicationic 3a,6a‐diaza‐1,4‐diphosphapentalenes (DDP) 2 X (X=halogen or complex ion) have been characterized. Interdeck distances P(1)⋅⋅⋅P(3) and P(2)⋅⋅⋅P(4) in crystal structures, as a rule, significantly exceed the sum covalent radii, however they are still within van der Waals radii. The 31 P NMR data indicate that phosphorus atoms equivalent solution even at low temperatures (233 K). Based on DFT calculations, formation two P−P bonds (<2.4 Å) is...
Partially and fully chlorinated 2-mercaptobenzothiazoles, namely 5,6-dichloro-1,3-benzothiazol-2(3H)-thione (HmbtCl2) 4,5,6,7-tetrachloro-1,3-benzothiazol-2(3H)-thione (HmbtCl4), were utilized as sensitizers for lanthanide luminescence. Lanthanide ate complexes 1–6, having the general formula [Na(DME)3]+[Ln(mbtCln)4]− (1: Ln = Nd, n 2; 2: Gd, 3: Tb, 4: 4; 5: 6: 4), synthesized using a convenient one-pot route, which included interaction of respective thiones with sodium silylamides. X-ray...
Herein, complexes [ZnL]2 (1), {(H2O)Zn(μ-L)Yb[OCH(CF3)2]3} (2), {[(CF3)2HCO]Zn(μ-L)Yb[OCH(CF3)2](μ-OH)}2 (3), and [(H2O)Ln2(L)3] (Ln = Yb (4) Gd (5)) containing a bridging Schiff-base ligand (H2L N,N'-bis(3-methoxy salicylidene)phenylene-1,2-diamine) were synthesized. The compounds 1-4 structurally characterized. ytterbium derivatives 2-4 exhibited bright NIR metal-centred photoluminescence (PL) of Yb3+ ion under one- (λex 380 nm) two-photon 750 excitation. superior luminescence properties...
The variety of reaction products DDP with boranes is determined by the nature DDP, which a masked phosphinidene.