A5085151925- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Supramolecular Chemistry and Complexes
- Crystallography and molecular interactions
- Molecular Sensors and Ion Detection
- Inorganic Chemistry and Materials
- Organometallic Compounds Synthesis and Characterization
- Radioactive element chemistry and processing
- Metal-Organic Frameworks: Synthesis and Applications
- Metalloenzymes and iron-sulfur proteins
- Lanthanide and Transition Metal Complexes
- Organometallic Complex Synthesis and Catalysis
- Inorganic Fluorides and Related Compounds
- Nanocluster Synthesis and Applications
- Magnetism in coordination complexes
- Methane Hydrates and Related Phenomena
- Advanced Chemical Physics Studies
- Thermal and Kinetic Analysis
- Corrosion Behavior and Inhibition
- Crystal Structures and Properties
- Crystal structures of chemical compounds
- Iron-based superconductors research
- Metal Extraction and Bioleaching
- Catalytic Processes in Materials Science
- Electron Spin Resonance Studies
Siberian Branch of the Russian Academy of Sciences
1998-2022
Nikolaev Institute of Inorganic Chemistry
2004-2022
Russian Academy of Sciences
1998-2013
International Tomography Center
2010
Novosibirsk Institute of Organic Chemistry
2010
Novosibirsk State University
2003
Newcastle University
2000
Czech Academy of Sciences, Institute of Inorganic Chemistry
1998
The main principles of the design supramolecular compounds starting from organic macrocyclic cavitands,viz., cucurbit[n]urils [C 6 H 6 N 4 O 2 ] n (n=5–10), are considered. presence hydrophobic inner cavity along with polar carbonyl groups forming cucurbituril portals responsible for high specificity formation host–guest complexes. unique ability cucurbiturils to act as synthetic molecular containers is discussed. In these containers, bimolecular reactions between specially...
The review surveys new data on the directed construction of supramolecular organic–inorganic compounds from macrocyclic cavitand cucurbit[6]uril (C 36 H N 24 O 12 )and mono- and polynuclear aqua complexes. Due to presence polarized carbonyl groups, forms strong complexes with alkali, alkaline earth rare-earth metal ions, hydrogen-bonded adducts cluster transitional metals. A wide variety their unique structures are described.
Sandwich-type lanthanide complexes with macrocyclic ligand cucurbit[6]uril (C 36H 36N 24O 12, CB[6]) were synthesized under hydrothermal conditions from aqueous solutions of lanthanide(III) bromides, CB[6], and 4-cyanopyridine. According to X-ray analysis (Ln = La, Pr, Dy, Ho, Er, Yb), the compounds different structural types cores have a common fragment where tetranuclear hydroxo complex is sandwiched between two macrocycles {(IN@CB[6])Ln 4(mu 3-OH) 4(IN@CB[6])} (6+) (IN isonicotinate). The...
Abstract Tetranuclear lanthanide aqua hydroxo complexes with two structural types of core – {Ln 4 (μ 3 ‐OH) 2 } 4+ [Ln = Pr ( 1 ), Nd Eu Gd Tb 5 )] and 6+ Er 6 Yb 7 were prepared by heating (130 °C) aqueous solutions lanthanide(III) chlorides, cucurbit[6]uril (C 36 H N 24 O 12 , CB[6]), 4‐cyanopyridine. The formation Ln results from the combined influence tetradentate coordination polycation portals macrocyclic ligand CB[6] chelating effect carboxylate ligands isonicotinic acid generated as...
Inclusion compounds of a macrocyclic cavitand cucurbit[8]uril (CB[8]) with cobalt(III) and nickel(II) complexes 1,3-diaminopropane (tn) 1,3-diamino-2-propanol (tmOH) { trans-[Co(tn) 2Cl 2]@CB[8]}Cl.14H 2O ( 1), trans-[Co(tmOH)(tmO)]@CB[8]}Cl 2.22H 2), trans-[Ni(tmOH) 2]@CB[8]}Cl 3) were synthesized characterized by X-ray single crystal analysis, IR spectroscopy, ESI-MS, solid-state stripping voltammetry. The encapsulation 2] (+) within the cavity CB[8] stabilizes complex toward ligand...
(Aqua)lanthanide complexes with cucurbituril {[Gd(NO3)(H2O)4](C36H36N24O12)}(NO3)2·7H2O (1), {[Gd(NO3)(C2H5OH)(H2O)3](C36H36N24O12)}(NO3)2·5.5H2O (2), {[Ho(NO3)(H2O)4](C36H36N24O12)}(NO3)2·7H2O (3), {[Yb(NO3)(H2O)4](C36H36N24O12)}(NO3)2·6H2O (4), {[La(H2O)6(SO4)](C36H36N24O12)}(NO3)·12H2O (5), {[Gd(H2O)4]2(C36H36N24O12)3}Br6·45H2O (6), and {[Ce(H2O)5]2(C36H36N24O12)2}Br6·26H2O (7) were obtained in high yield by reaction of aqueous solutions lanthanide(III) species. The crystal structures the...
For the first time polynuclear hydroxido-bridged platinum(IV) nitrato complexes with nuclearity higher than two were isolated from nitric acid solutions of [Pt(H2O)2(OH)4] and crystallized as supramolecular compounds macrocyclic cavitands cucurbit[n]uril (CB[n], n = 6,8) 18-crown-6 ether: [Pt4(μ3-OH)2(μ2-OH)4(NO3)10]·CB[6]·25H2O (I), [Pt6(μ3-OH)4(μ2-OH)6(NO3)12](NO3)2·CB[8]·50H2O (II), [H3O⊂18-crown-6]2[Pt2(μ2-OH)2(NO3)8][Pt4(μ3-OH)2(μ2-OH)4(NO3)10] (III). The isolation in single crystalline...
Six cis coordinated H2O molecules of the triangular cluster complexes M3(μ3-S)((μ2-S)3(H2O)9]4+ (M = Mo, W) (hydrogen bond donors) complementary to six portal oxygen atoms cucurbituril (acceptors). The shape and symmetry building blocks induce specific crystal structures.
Structural models for the incorporation of metal atoms into layered dichalcogenides, ME2, are provided by two series isostructural hybrid organic–inorganic supramolecular assemblies based on cucurbituril adducts incomplete cuboidal aqua cluster complexes molybdenum and tungsten, heterometallic corner-shared double cube derivatives. The picture illustrates structure assembly [{[Mo3Se4(H2O)7Cl2]2Hg}(C36H36N24O12)].
Two new polynuclear oxo/hydroxo-bridged gallium(III) aqua complexes are obtained upon treatment of Ga(3+)(aq) with pyridine: the supramolecular compound macrocyclic cavitand cucurbit[6]uril gallium complex containing 32 metal atoms [Ga(32)(mu(4)-O)(12)(mu(3)-O)(8)(mu(2)-O)(7)(mu(2)-OH)(39)(H(2)O)(20)](PyH subsetC(36)H(36)N(24)O(12))(3)(NO(3))(6).53H(2)O (1) and tridecanuclear [Ga(13)(mu(3)-OH)(6)(mu(2)-OH)(18)(H(2)O)(24)](NO(3))(15).12H(2)O (2). It follows that two modes nucleation exist...
The unprecedented selective encapsulation of trans-[Co(en)2Cl2]+ from the mixture trans and cis isomers into cavity macrocyclic cavitand cucurbit[8]uril (C48H48N32O16, CB[8]) leads to inclusion compound {trans-[Co(en)2Cl2]@CB[8]}Cl·17H2O (1). Single-crystal X-ray analysis, 1H NMR, ESI-MS spectra confirm formation host−guest complex 1 in both solid state solution. geometry cation alters significantly upon inclusion, which causes appreciable hypsochromic shifts absorption bands guest complex....
Mechanochemical reaction of cluster coordination polymers 1∞[M3Q7Br4] (M = Mo, W; Q S, Se) with solid K2C2O4 leads to core excision the formation anionic complexes [M3Q7(C2O4)3]2-. Extraction mixture water followed by crystallization gives crystalline K2[M3Q7(C2O4)3]·0.5KBr·nH2O n 3 (1); M Se, 4 (2); W, 5 (3)). Cs2[Mo3S7(C2O4)3]·0.5CsCl·3.5H2O (4) and (Et4N)1.5H0.5K{[Mo3S7(C2O4)3]Br}·2H2O (5) were also prepared. Close Q···Br contacts result in ionic triples {[M3Q7(C2O4)3]2Br}5- 1−4 1:1...
Inclusion of nitroxides into the cavity molecular nanocontainers may prevent or significantly retard nitroxide reactions with cellular reductans and increase lifetime. This paper is aimed at studying possible applications cucurbit[7]uril (CB7) as a nanocontainer for pH-sensitive probes. complexes CB7 different nitroxides--3-aminomethyl-proxyl (AMP), 3-hydroxymethyl-proxyl (HMP), 4-amino-2,2,5,5-tetramethyl-2,5-dihydroimidazole-1-oxyl (ATI), 2,2,4,5,5-pentamethyl-2,5-dihydroimidazole-1-oxyl...