Dmitry Pavlov

Nikolaev Institute of Inorganic Chemistry | NIIC · Laboratory of metal-organic coordination polymers

The reactions of cobalt(II) nitrate with 4,7-di(1,2,4-triazol-1-yl)-2,1,3-benzothiadiazole (Tr2btd) and aromatic dicarboxylic acids (terephthalic (H2bdc), 2,6-naphthalenedicarboxylic (2,6-H2Ndc), and 2,5-furandicarboxylic (2,5-H2Fdc) acids) afford metal-organic frameworks [Co(Tr2btd)(bdc)]n (I) and {[Co2(Tr2btd)(Dmf)(2,6-Ndc)2]·Dmf}n (II) with the...

We report the synthesis of the new compound 6,8-dibromo-11H-indeno[1,2-b]quinolin-11-one, which presents an important type of nitrogen-containing heterocycles and is a useful intermediate product in organic synthesis. The structure of the compound was confirmed by the single crystal X-ray diffraction. Molecular docking analysis revealed that 6,8-di...

Heavy metal ions and antibiotic contamination have become a major environmental concern worldwide. The development of efficient recognition strategies of these pollutants at ultra‐low concentrations in aqueous solutions as well as the elucidation of the intrinsic sensing mechanism are challenging tasks. In this work, unique luminescent Ln‐MOF mater...

Heavy metal ions and antibiotic contamination have become a major environmental concern worldwide. The development of efficient recognition strategies of these pollutants at ultra‐low concentrations in aqueous solutions as well as the elucidation of the intrinsic sensing mechanism are challenging tasks. In this work, unique luminescent Ln‐MOF mater...

Structural transformations of metal-organic frameworks (MOFs) go through a complex energy landscape with multiple intermediate states. Although the transformations allow controlling the functional properties of the MOFs, an imbalance between MOF flexibility and rigidity sets a fundamental barrier to achieving fast and multiple transformations. Here...

Highly selective and sensitive quantitative detection of ofloxacin (OFX) at ultralow concentrations in aqueous media and development of new afterglow materials remains a challenge. Herein, a new 2D water‐stable lanthanide metal–organic framework (NIIC‐2‐Tb) is proposed, which exhibits high selectivity towards OFX through the luminescence quenching...

This work presents the synthesis of a new compound, 1-[aryl-(diphenylphosphono)methyl]-3,4,6-trimethylglycolurils, via the interaction of benzaldehyde and its mononitro- and monohydroxyderivatives with 1,3,4-trimethylglycoluril and triphenylphosphite. By varying the reaction conditions and the catalysts, the obtained product yields ranged from sati...

Laser conversion of metal–organic frameworks (MOFs) has recently emerged as a fast and low-energy consumptive approach to create scalable MOF derivatives for catalysis, energy, and optics. However, due to the virtually unlimited MOF structures and tunable laser parameters, the results of their interaction are unpredictable and poorly controlled. He...

Two‐dimensional metal‐organic frameworks (MOFs) occupy a special place among the large family of functional 2D materials. Even at a monolayer level, 2D MOFs exhibit unique sensing, separation, catalytic, electronic, and conductive properties due to the combination of porosity and organo‐inorganic nature. However, lab‐to‐fab transfer for 2D MOF laye...

Solvothermal reaction of 5,5′‐(pyridine‐2,6‐diylbis(oxy))diisophthalic acid (H4L) with europium(III) or terbium(III) nitrates in acetonitrile‐water (1 : 1) at 120 °C gave rise to isostructural 2D coordination polymers, [Ln(HL)(H2O)3]∞ (NIIC‐1‐Eu and NIIC‐1‐Tb), the layers of which are composed by eight‐coordinated lanthanide(III) ions interconnecte...

Solvothermal reaction of 5,5′‐(pyridine‐2,6‐diylbis(oxy))diisophthalic acid (H 4 L) with europium(III) or terbium(III) nitrates in acetonitrile‐water (1 : 1) at 120 °C gave rise to isostructural 2D coordination polymers, [Ln(HL)(H 2 O) 3 ] ∞ ( NIIC‐1‐Eu and NIIC‐1‐Tb ), the layers of which are composed by eight‐coordinated lanthanide(III) ions inte...

11H-Indeno[1,2-b]quinoxalin-11-one oxime (IQ-1) and tryptanthrin-6-oxime are potent c-Jun N-terminal kinase 3 (JNK-3) inhibitors demonstrating neuroprotective, anti-inflammatory and anti-arthritic activity. However, the stereochemical configuration of the oxime carbon–nitrogen double bond (E- or Z-) in these compounds was so far unknown. In this co...

Supramolecular 3D Zn(II) coordination polymer {[Zn(bim)(bdc)]⋅0.8DMF⋅0.4EtOH⋅0.1H2O }n (Zn-MOF), constructed from Zn2+ ions, bis(imidazol-1-yl)methane (bim) and terephthalate (bdc2−) anions, was synthesized and structurally characterized. Zn-MOF crystallizes in the tetragonal crystal system, space group P42/n. Each Zn(II) ion coordinates two neutra...

A new metal–organic framework based on cadmium(II) cations, di(p-carboxyphenyl)sulphone and 4,7-di(imidazol-1-yl)-2,1,3-benzothiadiazole was prepared, and its crystal structure was determined using single-crystal XRD analysis. MOF demonstrated bright luminescence with a maximum near 500 nm and quantum yield reaching 20%. In addition, this MOF demon...

By the interaction of 2,6-bis(3,5-dicarboxyphenoxy)pyridine (H4L) with lanthanum(III) nitrate in a 1:1 acetonitrile–water mixture a coordination polymer {[La(HL)(H4L)(H2O)4]·2H2O}n is synthesized. According to single crystal X-ray diffraction data, the compound is a linear coordination polymer whose chains are organized into a 3D supramolecular net...

A reaction between 4,4′,4″-(benzene-1,3,5-triyltris(oxy))triphthalic acid (H6L) and lanthanide(III) nitrates (Ln = Eu3+, Tb3+) in water under the same conditions gave a molecular coordination compound [Tb(H4.5L)2(H2O)5]∙6H2O in the case of terbium(III) and a one-dimensional linear coordination polymer {[Eu2(H3L)2(H2O)6]∙8H2O}n in the case of europi...

Two half-sandwich iridium(III) and rhodium(III) complexes with 11H-indeno[1,2-b]quinoxalin-11-one oxime (IQ-1) ligand were prepared by the reaction of the proligand with [M(Cp*)Cl2]2 (M = Ir, Rh) dimers. The reaction between IQ-1 and [Ir(Cp*)Cl2]2 in methanol gave the complex [Ir(Cp*)(IQ-1)Cl] (1), which crystallized in a centrosymmetric space grou...

Coordination polymers of cadmium(II) with the di(pyrazol-1-yl)alkane derivatives, bis(3,5- dimethylpyrazol-1-yl)methane-4,4′-dicarboxylic acid (H2L1) and 1,3-bis(pyrazol-1-yl)propane-4,4′-dicarboxylic acid (H2L2), are synthesized. The crystal structures of the products are determined by X-ray diffraction (CCDC nos. 2172853 (I) and 2172854 (II)). Th...

A three-dimensional coordination polymer was synthesized by the reaction of zinc(ii) nitrate with 4,7-(4-carboxyphenyl)-2,1,3-benzoxadiazole and di(imidazol-1-yl)methane. The crystal structure of the new compound was determined by single-crystal X-ray diffraction. In the structure of the metal-organic framework, the trinuclear secondary building un...

Six new arene-ruthenium(II) complexes containing two different η⁶-arene ligands – benzene and hexamethylbenzene, with indenoquinoxalinone oxime analogues (11H-indeno[1,2-b]quinoxalin-11-one oxime, 6H-indeno[1,2-b]pyrido[3,2-e]pyrazin-6-one oxime and 6–(hydroxyimino)indolo[2,1-b]quinazolin-12(6H)-one oxime (tryptanthrin-6-oxime)) as N,N’- chelating...

A new dicarboxylate ligand - 4,7-di(p-carboxyphenyl)-2,1,3-benzoxadiazole was synthesised and used for the preparation of 2,1,3-benzoxadiazole-decorated zirconim(IV)-based metal-organic framework UiO-68(bod). Single-crystal X-ray diffraction analysis revelead it to belong to UiO-68 family...

A luminescent coordination polymer with the overall formula {[Zn(tr2btd)(bpdc)]∙DMF}n (where tr2btd = 4,7-di(1H-1,2,4-triazol-1-yl)-2,1,3-benzothiadiazole; bpdc = 4,4′-biphenyldicarboxylate) was synthesized and characterized by single-crystal and powder X-ray diffraction, thermogravimetric, infrared spectroscopy, and elemental analyses. Luminescent...

The molecular structure of bis(pyrazol-1-yl)methane-4,4′-dicarboxylic acid (H2bpmdc) was determined by single crystal X-Ray diffraction analysis. The compound crystallizes in a monoclinic crystal system; the unit cell contains four formula units. The molecules of H2bpmdc are linked into zig-zag chains by intermolecular carboxyl–carboxyl hydrogen bo...

Mono- and binuclear arene–ruthenium(II) complexes with imidazole-containing ligands were prepared by the reaction of the ligands (L1 = bis(imidazole-1-yl)methane; ImH = 1H-Imidazole; BImH = 1H-Benzimidazole) with [(p-cym)Ru(µ-Cl)2]2 dimers. When bis(imidazole-1-yl)methane reacted with [(p-cym)Ru(µ-Cl)2]2 in methanol, a binuclear complex of the type...

The reactions of 1-(1,2,4-triazol-1-yl)adamantane with cadmium(ii) chloride, bromide, and iodide were studied. The crystal structures of the synthesized coordination compounds were determined by single-crystal X-ray diffraction. Cadmium(ii) chloride and bromide form 1D coordination polymers, in which cadmium ions are bridged by two halide ions, whe...

Reactions of adamantylazoles with nucleophiles (water, carbon monoxide, acetonitrile) in sulfuric acid were studied. New bifunctional adamantane derivatives containing one heterocyclic substituent and one hydroxyl or acetamide substituent were synthesized. The coordination compounds of copper(II) and zinc(II) with 1-adamantyl-1,2,4-triazole, 4-adam...

Coordination polymers are constructed from metal ions and bridging ligands, linking them into solid-state structures extending in one (1D), two (2D) or three dimensions (3D). Two- and three-dimensional coordination polymers with potential voids are often referred to as metal-organic frameworks (MOFs) or porous coordination polymers. Luminescence is...

A series of novel mono- and binuclear arene–ruthenium(II) complexes [(p-cym)Ru(L)Cl] containing 11H-indeno[1,2-b]quinoxalin-11-one derivatives or tryptanthrin-6-oxime were synthesized and characterized by X-ray crystallography, IR, NMR spectroscopy, cyclic voltammetry, and elemental analysis. Theoretical calculations invoking singlet state geometry...

For the first time, orthogonally substituted azole-carboxylate adamantane ligands were synthesized and used for preparation of coordination polymers. The angle-shaped ligands were prepared by the reaction of 1-adamantanecarboxylic acid and azoles (1H-1,2,4-triazole, 3-methyl-1H-1,2,4-triazole, 3,5-dimethyl-1H-1,2,4-triazole, 1H-tetrazole, 5-methyl-...

The main purpose of this work is to consider the most efficient modern educational technologies applied in teaching foreign languages to students of higher educational institutions in the Russian Federation. Special emphasis is placed on blended learning as a pedagogical approach of high priority. It is necessary to note that information-communicat...