• Synthesis, crystal structure, and spectral characteristics of N-(n-propyl) aminomethanesulfonic acid. Acute toxicity of aminomethanesulfonic acid and its N-alkylated derivatives 

  Khoma, R. E.; Baumer, V. N.; Antonenko, P. B.; Snihach, A. O.; Godovan, V. V.; Ennan, A. A.; Dlubovskii, R. M.; Gelmboldt, V. O.; Хома, Р. Є.; Баумер, В. М.; Антоненко, П. Б.; Снігач, А. О.; Годован, В. В.; Еннан, А. А.; Длубовський, Р. М.; Гельмбольдт, В. О. (2019)

  Aminomethanesulfonic acid (Ia), and its N-methyl (IIa), N-n-propyl (IIIa), N-tert-butyl (IVa) derivatives were synthesized (IIIa has not been previously described) and characterized by means of X-ray diffraction analysis, ...
• Hexafluorosilicates of bis(carboxypyridinium) and bis(2-carboxyquinolinium) 

  Gelmboldt, V. O.; Koroeva, L. V.; Ganin, E. V.; Fonari, M. S.; Botoshansky, M. M.; Ennan, A. A. (2008)

  The preparation and characterization of three isomeric carboxypyridinium and carboxyquinolinium hexafluorosilicate salts is described. The salts of the general formulas (LH)2[SiF6] (I–III, L = 2-carboxypyridine, ...
• Synthesis, structure and properties of 3-hydroxymethylpyridynium hexafluorosilicate monohydrate as a new potential anticaries agent 

  Gelmboldt, V. O.; Shyshkin, I. O.; Anisimov, V. Yu.; Fonari, M. S.; Kravtsov, V. Ch. (2020)

  The present communication describes of the synthesis, crystal structure, spectral data and properties of 3-hydroxymethylpyridinium hexafluorosilicate monohydrate – a new ammonium hexafluorosilicate, which may find an ...
• Aminomethanesulfonic Acids as Reaction Products in SO2–NH2Alk–CH2O–H2O Systems: Synthesis and Structure 

  Khoma, R. E.; Gelmboldt, V. O.; Baumer, V. N.; Ennan, A. A.; Vodzinskii, S. V.; Ishkov, Yu. V.; Rakipov, I. M. (2021)

  An original procedure was proposed for the synthesis of a series of aminomethanesulfonic acids AlkNHCH2SO3 (Alk = n-Bu, n-Hept, n-Oct, Bn) and N-tris(hydroxymethyl)methylammonium hydroxymethanesulfonate. The structure of ...
• Crystal structures and solubility of 4,4´-bipyridinium and 2-brom-5-methylpyridinium hexafluorosilicates 

  Gelmboldt, V. O.; Koroeva, L. V.; Ganin, E. V.; Fonari, M. S. (2012)

  Hexafluorosilicates with heterocyclic cations are convenient models for the estimation of H-bonds influence on structural characteristics and properties of this onium salts. As a part of our systematic investigation here ...
• Hexafluorosilicates with antibacterial cations 

  Gelmboldt, V.; Anisimov, V.; Prodan, O.; Shishkin, I. (2014)

  The "onium" hexafluorosilicates, in particular, ammonium hexafluorosilicate (NH4)2SiF6 and hexafluorosilicates of amino acids represent in the recent years the objects of intensive research as compounds possessing by the ...
• Preparation, structure and properties of pyridinium/bipyridinium hexafluorosilicates 

  Gelmboldt, V. O.; Ganin, E. V.; Botoshansky, M. M.; Anisimov, V. Yu.; Prodan, O. V.; Kravtsov, V. Ch.; Fonari, M. S. (2014)

  Pyridinium hexafluorosilicates with the compositions (LH)2[SiF6] (where L = 2,6-bis(hydroxymethyl)-pyridine (I), 4,5-bis(hydroxymethyl)-2-methylpyridine-3-ol (II)), monohydrate (LH)2[SiF6]H2O (L = 2-bromo-6-methylpyridine ...
• Structure of the 18-crown-6 complex with ammonium hexafluorosilicate and water 

  Fonari, M. S.; Kravtsov, V. Ch.; Simonov, Y. A.; Ganin, E. V.; Gelmboldt, V. O. (2001)

  The crystalline host–guest type complex [(18-crown-6ċNH4)2][SiF6]ċ4H2Ohas been obtained as the result of the interaction of SiF4ċ2NH3 with 18-crown-6 (18C6) in an aqueous medium. Crystal data: monoclinic, space groupC 2 ...
• About hydrolytic stability of the chelate complexes [SiF4(2,2′-Bipy)] and [SiF4(1,10-Phen)] 

  Gelmboldt, V. O.; Ganin, Ed. V.; Anisimov, Yu.; Fonari, M. S.; Kravtsov, V. Ch. (2014)

  The products of reaction of fluorosilicic acid (FSA) with organic bases, the fluorosilicates of the relevant "onium" cations, find an application as anti-caries agents, ionic liquids, reagents for modified zeolite catalytic ...
• “Onium” hexafluorosilicates as new potential caries protective agents 

  Gelmboldt, V. O.; Anisimov, V. Yu.; Fonari, M. S.; Kravtsov, V. Ch. (2016)

  In recent years, the possible usage of ammonium hexafluorosilicate (AHF) as caries-protector and hyposensitive agent in the practice of dentistry was demonstrated. According to silica, as a product of hydrolysis of AHF, ...
• Development of methods for identification of cetylpyridinium hexafluorosilicate 

  Gelmboldt, V. О.; Аnisimov, V. Yu.; Bevz, N. Yu.; Georgiyants, V. А. (2016)

  The methods for identification of Cetylpyridinium hexafluorosilicate – a potential caries preventive and antibacterial agent have been developed. To identify Cetylpyridinium hexafluorosilicate according to the requirements ...
• Features of Interaction in the Sulfur(IV) Oxide–Hexamethylenetetramine–Water System: A First Example of Identification of the Product with a Sulfur–Carbon Bond 

  Khoma, R. E.; Shestaka, A. A.; Shishkin, O. V.; Baumer, V. N.; Brusilovskii, Yu. E.; Koroeva, L. V.; Ennan, A. A.; Gel’mbol’d, V. O. (2011)

  Hexamethylenetetramine (HMTA) is a ligand in the synthesis of coordination compounds and also is used as a pharmaceutical antiseptic drug and as hexogen precursor. An attempt is known to use aqueous solutions of HMTA as ...
• Onium hexafluorosilicates with heterocyclic cations: supramolecular structure, properties and pharmaceutical application 

  Gelmboldt, V. O. (2012)

  Recent years demonstrate the steady interest to the various aspects of supramolecular chemistry of anions, and, in particular, fluorocomplexes anions due to their important role in chemical engineering. The high H-acceptor ...
• Condensation reactions in the systems “SO2 – L – CH2O – H2O” (L – primary amines) 

  Khoma, R. E.; Ennan, A. A.; Gelmboldt, V. O.; Koroeva, L. V. (2012)

  We have previously shown that the interaction of sulfur (IV) oxide with hexamethylentetramine (HMTA) in aqueous solution results in the aminometansulfonic acid (AMSA):formulaAn attempt has been made to synthesize the AMSA ...
• The products of SO2 interaction with aqueous solutions of methylamine, benzylamines, 1,2-diamines and morpholine 

  Khoma, R. E.; Gelmboldt, V. O.; Ennan, A. A.; Baumer, V. N.; Mazepa, A. V.; Koksharova, T. V. (2015)

  The new method of preparation of sulphur oxoanions “onium” salts via interaction in the SO2–L–H2O–O2 systems (L is methylamine, benzylamines, 1,2-diamines, and morpholine) has been developed. “Onium” sulfates have been ...
• Interaction between Hydrofluorosilicic Acid and 1,10-Phenanthroline: Hydrolytic Stability of Chelate Complexes of Silicon Tetrafluoride with Bidentate N-Donors 

  Gel’mbol’dt, V. O.; Anisimov, V. Yu.; Fonar, M. S. (2016)

  Hexafluorosilicate (LH2)SiF6 and the cis-[SiF4(L)] chelate complex characterized by 19F NMR are products of reaction between hydrofluorosilicic acid and 1,10-phenanthroline (L). XRD findings show that the structure of ...
• Synthesis and antioxidant and anti-influenza activity of aminomethanesulfonic acids 

  Khoma, R. E.; Gelmboldt, V. O.; Énnan, A. A.; Gridina, T. L.; Fedchuk, A. S.; Lozitsky, V. P.; Rakipov, I. M.; Vladyka, A. S. (2019)

  Aminomethanesulfonic acid (I) and its N-methyl- (II), N-(2-hydroxy)ethyl- (III), N-(tert-butyl)- (IV), N-benzyl- (V), and 4-(N-phenylaminomethyl)phenyl- (VI) derivatives (V and VI not previously reported) were synthesized ...
• Synthesis, crystal structure, and some properties of 4-hydroxymethylpyridinium hexafluorosilicate 

  Gelmboldt, V. O.; Shyshkin, I. O.; Fonari, M. S.; Kravtsov, V. Kh. (2019)

  Hexafluorosilicate with the composition (LH)2SiF6 (I), (L = 4-hydroxymethylpyridine) is isolated as the interaction product of an L methanol solution and 45% hydrofluorosilicic acid (L:H2SiF6 = 1:3). In the crystal structure ...
• Complexing of Sulfur(IV) Oxide with Hexamethylenetetramine and Hexamethylenediamine in Aqueous Solutions 

  Khoma, R. E.; Shestaka, A. A.; Gavrilenko, M. I.; Sokhranenko, G. P.; Gel’mbol’dt, V. O. (2011)

  Interaction in the sulfur(IV) oxide–hexamethylenetetramine (hexamethylenediamine)–water systems was studied by pH-, redox-, and conductometric titration techniques. The structure and stability of the resulting molecular ...
• Tetrabenzylcyclen as a receptor for fluoride 

  Gelmboldt, V. O.; Ganin, E. V.; Basok, S. S.; Kulygina, E. Yu.; Botoshansky, M. M.; Kravtsov, V. Ch.; Fonari, M. S. (2011)

  A tetraazacyclic ligand, tetrabenzylcyclen (L), was synthesized using an improved method with a higher yield by treatment of cyclen with benzylchloride in the presence of potassium carbonate. The reaction of L with an ...

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