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Journal articles on the topic 'Vanadyl compounds'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Abakumova, O. Y., O. V. Podobed, N. F. Belayeva, and A. I. Tochilkin. "Anticancer activity of oxovanadium compounds." Biomeditsinskaya Khimiya 59, no. 3 (2013): 305–20. http://dx.doi.org/10.18097/pbmc20135903305.

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Cytotoxic and antitumor activity of the biligand vanadyl derivative of L-malic acid (bis(L-malato)oxovanadium(IV) (VO(mal) ) was investigated in comparison with inorganic vanadium(IV) compound - vanadyl sulfate (VOSO ) and also with oxovanadium monocomplex with L-malic acid (VO(mal)) and vanadyl biscomplex with acetylacetonate. In this purpose the effect of vanadyl compounds on growth of normal human skin fibroblasts and tumor cells of different lines: mouse fibrosarcoma (L929), rat pheochromocytome (PC12), human liver carcinoma (HepG2), virus transformated mouse fibroblast (NIN 3T3), virus tr

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2

Premovic, Pavle, Ivana Tonsa, Dragan Djordjevic, and Mirjana Pavlovic. "Air oxidation of the kerogen/asphaltene vanadyl porphyrins: An electron spin resonance study." Journal of the Serbian Chemical Society 65, no. 2 (2000): 113–21. http://dx.doi.org/10.2298/jsc0002113p.

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The thermal behavior of vanadyl porphyrins was studied by electron spin resonance during heating of kerogens, isolated from the La Luna (Venezuela) and Serpiano (Switzerland) bituminous rocks, at 250?C for 1 to 20 days in the presence of air. During the thermal treatment of the kerogens, the vanadyl porphyrins resonance signals decrease monotonically and become quite small after 6 days of heating. Concomitantly, new vanadyl signals appear and, at longer heating times, dominate the spectrum. It is suggested that the secondary vanadyl species must have been formed from vanadyl porphyrins. Simila

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3

Bekov, Ulugbek, Mirzo Sharipov, Iroda Raupova, Zarifa Fayzieva, and Firdavs Olimpur. "Influence of the nature of solvents on the spectroscopic properties of some vanadyl complexes." BIO Web of Conferences 105 (2024): 02006. http://dx.doi.org/10.1051/bioconf/202410502006.

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The article presents a study of the influence of the nature of chemical solvents on the spectroscopic properties of vanadyl complexes. These compounds are used as biologically active analytical reagents and catalysts. Vanadyl (II) complexes were structured according to a typical procedure. To determine the spectral and luminescent properties of the synthesized organic compounds, dimethyl sulfoxide and distilled water were used. The results of the obtained experimental and computational studies show that the compounds under study change their spectral characteristics with the addition of binary

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4

Agarwal, O. P., and Prem Chand. "Optical Absorption Spectra of Vanadyl Ion (Impurities) in Three Host Crystal Compounds." Zeitschrift für Naturforschung A 40, no. 11 (1985): 1164–66. http://dx.doi.org/10.1515/zna-1985-1116.

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Results of the optical absorption study of vanadyl ion doped in magnesium ammonium sulphate hexahydrate, rubidium sulphate and potassium dihydrogen phosphate single crystals at RT are reported. The nature of optical bands suggests a C4v symmetry of the Vanadyl complexes in conformity with the EPR results. Powder EPR data and optical data are correlated to obtain the MO coefficients.

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5

Willsky, Gail R., Lai-Har Chi, Yulan Liang, Daniel P. Gaile, Zihua Hu, and Debbie C. Crans. "Diabetes-altered gene expression in rat skeletal muscle corrected by oral administration of vanadyl sulfate." Physiological Genomics 26, no. 3 (2006): 192–201. http://dx.doi.org/10.1152/physiolgenomics.00196.2005.

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Treatment with vanadium, a representative of a class of antidiabetic compounds, alleviates diabetic hyperglycemia and hyperlipidemia. Oral administration of vanadium compounds in animal models and humans does not cause clinical symptoms of hypoglycemia, a common problem for diabetic patients with insulin treatment. Gene expression, using Affymetrix arrays, was examined in muscle from streptozotocin-induced diabetic and normal rats in the presence or absence of oral vanadyl sulfate treatment. This treatment affected normal rats differently from diabetic rats, as demonstrated by two-way ANOVA of

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6

Melánová, K., J. Votinský, L. Beneš, and V. Zima. "Layered compounds derived from vanadyl phosphate dihydrate." Materials Research Bulletin 30, no. 9 (1995): 1115–20. http://dx.doi.org/10.1016/0025-5408(95)00095-x.

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7

RAMOSBARRADO, J., C. CRIADO, A. JIMENEZLOPEZ, P. OLIVERAPASTOR, and E. RODRIGUEZCASTELLON. "Protonic conduction of vanadyl phosphate intercalation compounds." Solid State Ionics 46, no. 1-2 (1991): 73–76. http://dx.doi.org/10.1016/0167-2738(91)90131-t.

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8

David, H. L., M. Lonashiro, A. V. Benedettí, J. R. Zamian, and E. R. Dockal. "Thermal decomposition of vanadyl Schiff-base compounds." Thermochimica Acta 202 (June 1992): 45–50. http://dx.doi.org/10.1016/0040-6031(92)85148-o.

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9

Ongarbayev, Yerdos, Shynar Oteuli, Yerbol Tileuberdi, Yahe Zhang, Fang Zheng, and Quan Shi. "Characterization of Vanadium and Sulfur Containing Compounds of Kazakhstan Petroleum Vacuum Residuum." Periodica Polytechnica Chemical Engineering 65, no. 4 (2021): 476–82. http://dx.doi.org/10.3311/ppch.17629.

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In the paper, bulk property and chemical composition of Kazakhstan vacuum residuum were characterized. Sulfides and thiophenes were selectively isolated from the residuum and characterized by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS). Molecular weights of the sulfur compounds were varied from 150 to 800 Da and S1 , S2 , O1S1 , O2S1 , N1S1 class species were assigned in the heavy oil derived methylsulfonium. Vanadyl porphyrins characterized by positive-ion electrospray ionization and FT-ICR MS, which showed that etioporphyrins (ETIO) (CnH2n-28N4V1O1 , corresponding

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10

de Moraes, Josué, Bruno S. Dario, Ricardo A. A. Couto, Pedro L. S. Pinto, and Ana M. da Costa Ferreira. "Antischistosomal Activity of Oxindolimine-Metal Complexes." Antimicrobial Agents and Chemotherapy 59, no. 10 (2015): 6648–52. http://dx.doi.org/10.1128/aac.01371-15.

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ABSTRACTIn recent years, a class of oxindole-copper and -zinc complex derivatives have been reported as compounds with efficient proapoptotic activity toward different tumor cells (e.g., neuroblastomas, melanomas, monocytes). Here we assessed the efficacy of synthesized oxindole-copper(II), -zinc(II), and -vanadyl (VO2+) complexes against adultSchistosoma mansoniworms. The copper(II) complexes (50% inhibitory concentrations of 30 to 45 μM) demonstrated greater antischistosomal properties than the analogous zinc and vanadyl complexes regarding lethality, reduction of motor activity, and oviposi

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11

Ni, Lubin, Hongxia Zhao, Li Tao, et al. "Synthesis,in vitrocytotoxicity, and structure–activity relationships (SAR) of multidentate oxidovanadium(iv) complexes as anticancer agents." Dalton Transactions 47, no. 30 (2018): 10035–45. http://dx.doi.org/10.1039/c8dt01778f.

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12

Oliveira, Leandro, Josy Osajima, Ramon Raudel Peña-Garcia, Edson Cavalcanti Silva-Filho, and Maria Gardennia Fonseca. "Effect of Oxycations in Clay Mineral on Adsorption—Vanadyl Exchange Bentonites and Their Ability for Amiloride Removal." Minerals 11, no. 12 (2021): 1327. http://dx.doi.org/10.3390/min11121327.

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The presence of drugs in aquatic bodies is a prevailing issue, and their removal by adsorption is an effective treatment. Among the adsorbents, those based clay minerals have been proposed. Bentonite is a clay mineral that is widely studied as an adsorbent due to its unique physicochemical properties, such as cation exchange capacity (CEC), intercalation, and adsorption. The properties of bentonites can be improved through chemical modifications, such as the incorporation of organic and/or inorganic compounds. These modifications allow for the efficient removal of different contaminants, inclu

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13

Aktan, Fügen, and Serpil Nebioglu. "Effect of vanadium compounds on calmodulin activity in experimental diabetes in rats." Canadian Journal of Physiology and Pharmacology 72, no. 7 (1994): 753–58. http://dx.doi.org/10.1139/y94-107.

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Vanadate and vanadyl have been reported to have insulin-like properties and have recently been demonstrated to be beneficial in the treatment of diabetic animals. In this study, we determined whether vanadium ions mimic the effect of insulin on calmodulin activity of liver and adipose tissues in streptozotocin-induced diabetic rats and examined their effect with respect to concentration and time. Calmodulin activities in the hormone-sensitive tissues decreased in diabetes and returned to normal after sodium metavanadate or vanadyl sulfate treatment for 3 weeks (0.2, 0.4, and 0.8 mg/mL in drink

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14

Kalousová, Jaroslava, Jiří Votinský, Ludvík Beneš, Klára Melánová, and Vítězslav Zima. "Vanadyl Phosphate and Its Intercalation Reactions. A Review." Collection of Czechoslovak Chemical Communications 63, no. 1 (1998): 1–19. http://dx.doi.org/10.1135/cccc19980001.

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The structure of the layered αI-VOPO4, VOPO4·2H2O, and their intercalation reactions are discussed. These reactions are divided into two groups. The first includes intercalation reactions of molecular guests which proceed as acid-base processes between the host layered lattice (Lewis acid) and a donor atom of the guest (base). Interaction of water molecules, alcohols, amines, carboxylic acids and their derivatives, heterocyclic N- and S-donors, and complex compounds with vanadyl phosphates is discussed. Vanadyl phosphate, in particular vanadyl phosphate dihydrate can also undergo the second ty

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15

Espinosa, Marcela, Ubaldo S. Pacheco, Florentino Leyte, and Ruben Ocampo. "Separation and identification of porphyrin biomarkers from a heavy crude oil Zaap-1 offshore well, Sonda de Campeche, México." Journal of Porphyrins and Phthalocyanines 18, no. 07 (2014): 542–51. http://dx.doi.org/10.1142/s108842461450028x.

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The task to isolate metalloporphyrin compounds from crude oils is difficult, especially from reservoirs; the existence of well-known complexes homologous series type etioporphyrin (E), deoxophyloerythroetioporphyrin (DPEP), tetrahydrobenzodeoxoerythroetioporpyrin (THBD), benzoetio- porphyrin(BE) and benzodeoxoerythroetioporphyrin (BD) of vanadyl and nickel porphyrins, compounds found in crude oils around the world makes it hard. This includes natural porphyrins found in Mexican crude oils such as Ixtal-101, Zaap-1 and Ceh-1 from Sonda de Campeche, México, were the vanadyl porphyrins mixtures o

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16

García-Ponce, L., L. Moreno-Real, and A. Jiménez-López. "Intercalation of basic molecules into niobyl-vanadyl phosphate." Canadian Journal of Chemistry 68, no. 4 (1990): 592–96. http://dx.doi.org/10.1139/v90-091.

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Mixed niobyl-vanadyl phosphate (V0.14Nb0.86)OPO4•2.7H2O, VNbP, is a moderately acid solid that intercalates strong basic molecules such as branched alkylamines, allylamine, cyclohexylamine, piperidine, and diethylamine, giving rise to bilayers of inclined molecules. In the case of molecules of medium basicity, such as pyridine, the intercalated amounts are small at room temperature and they present a planar orientation. A special behaviour was found with ethylenediamine and butylenediamine, strong basic diamines, which also present a planar disposition in the interlayer space. Keywords: mixed

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17

Jimenez-Lopez, A., A. L. Garcia-Ponce, and L. Moreno-Real. "Intercalation of cations into niobyl-vanadyl phosphate by redox reactions." Canadian Journal of Chemistry 68, no. 9 (1990): 1616–20. http://dx.doi.org/10.1139/v90-249.

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Mixed niobyl-vanadyl phosphate, Nb0.86V0.14OPO4•2.7H2O, intercalates various alkali, NH4+ alkaline earth, Zn2+, Cd2+, transition metal, and H+ cations by topotactic redox reactions. All the intercalates thus obtained are tetragonal (a = b = 6.44 Å, c lower than in the precursor solid). The degree of hydrolysis of the mixed phosphate in the intercalate in the redox reactions is always lower than 1%. Upon reduction, the cation exchange capacity (CEC) of the intercalates is 71 mequiv. per 100 g of solid calcined at 1000 °C. Keywords: mixed niobyl-vanadyl phosphate, layered compounds, redox interc

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18

Khatri, Praveen K., Mounika Aila, Jyoti Porwal, Savita Kaul, and Suman L. Jain. "Industrial resin “INDION 130” modified with vanadyl cations as highly efficient heterogeneous catalyst for epoxidation of fatty compounds with TBHP as oxidant." New Journal of Chemistry 39, no. 8 (2015): 5960–65. http://dx.doi.org/10.1039/c5nj00744e.

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Cation exchanger INDION 130 modified with vanadyl cations was found to be readily prepared and reusable and exhibited higher catalytic activity than the homogeneous oxo-vanadium catalyst for epoxidation of fatty compounds.

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19

Gilson, Trevor R. "Compounds Based on the Vanadyl Formate Double Layer." Journal of Solid State Chemistry 117, no. 1 (1995): 136–44. http://dx.doi.org/10.1006/jssc.1995.1256.

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20

Zhang, Hongyu, Yuetao Yi, Dawei Feng, Yipeng Wang, and Song Qin. "Hypoglycemic Properties of Oxovanadium (IV) Coordination Compounds with Carboxymethyl-Carrageenan and Carboxymethyl-Chitosan in Alloxan-Induced Diabetic Mice." Evidence-Based Complementary and Alternative Medicine 2011 (2011): 1–7. http://dx.doi.org/10.1155/2011/691067.

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In order to avoid low absorption, incorporation, and undesirable side effects of inorganic oxovanadium compounds, the antidiabetic activities of organic oxovanadium (IV) compounds in alloxan-induced diabetic mice were investigated. Vanadyl carboxymethyl carrageenan (VOCCA) and vanadyl carboxymethyl chitosan (VOCCH) were synthesized and administrated through intragastric administration in different doses for 20 days in alloxan-induced diabetic mice. Glibenclamide was administrated as the positive control. Our results showed that low-dose group, middle-dose group, and high-dose group of VOCCA an

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21

Kupchak, D. V., and O. I. Lyubimova. "TRACE ELEMENTS IN FOOD PRODUCTION OF HYPOGLYCEMIC ACTION." Vestnik of Khabarovsk State University of Economics and Law, no. 2(112) (May 31, 2023): 80–83. http://dx.doi.org/10.38161/2618-9526-2023-2-080-083.

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The article substantiates the possibility of using vanadyl sulfate as an ingredient in the production of hypoglycemic food products. A number of literature sources have been analyzed, which indicate the oxidative and hypoglycemic ability of vanadium compounds.

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22

Ferrer, Evelina G., María V. Salinas, María J. Correa, Fernanda Vrdoljak, and Patricia A. M. Williams. "Alp Inhibitors: Vanadyl(IV) Complexes Of Ferulic And Cinnamic Acid." Zeitschrift für Naturforschung B 60, no. 3 (2005): 305–11. http://dx.doi.org/10.1515/znb-2005-0312.

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Two new vanadyl(IV) carboxylate complexes have been obtained: Na2[VO(Fer)2(CH3OH)2] and Na2[VO(Cin)2(CH3O)2] and characterized by elemental analysis and UV-vis, diffuse reflectance and IR and Raman spectroscopies (FerH2 = ferulic acid, CinH= cinnamic acid). The thermal behavior was also investigated. The inhibitory effect on alkaline phosphatase activity was tested for the compounds and ferulic and cinnamic acids as well as for the vanadyl(IV) complex of quinic acid for comparison. The ferulic complex together with the free ligands exhibited the lowest inhibitory effect, while the VO/quinic an

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23

Kuznetsov, Yu. A., R.D. Apostolova, and E.M. Shembel. "Synthesis and Electrochemical Behavior in Redox Reaction with Lithium of K, Na (V-Oxide Compounds)." Электронная обработка материалов 1, no. 57 (2021): 29–36. https://doi.org/10.5281/zenodo.4455852.

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Heterogeneous vanadium-oxide compounds (bronzes, vanadates) attract the attention of developers of lithium batteries due to an increased structural stability of those oxides in the redox reaction with lithium as compared with the resistance of V<sub>2</sub>O<sub>5</sub> oxide, a traditional intercalation electrode material for Li-batteries. Structural stabilization improves the discharge characteristics of Li-batteries based on potassium-containing and sodium-containing vanadium oxide compounds. In this work, the combined effect of potassium and sodium ions on the electrochemical transformatio

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24

M. Naglah, Ahmed, Mohamed A. Al-Omar, Abdulrahman A. Almehizia, et al. "Synthesis, Characterization, and Anti-diabetic Activity of Some Novel Vanadium-Folate-Amino Acid Materials." Biomolecules 10, no. 5 (2020): 781. http://dx.doi.org/10.3390/biom10050781.

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A new six intraperitoneal injections insulin-mimetic vanadyl(IV) compounds [(VO)(FA)(AAn)] (where n = 1–6: AA1 = isoleucine, AA2 = threonine, AA3 = proline, AA4 = phenylalanine, AA5 = lysine, and AA6 = glutamine) were synthesized by the chemical reactions between folic acid (FA), VOSO4, and amino acids (AAn) with equal molar ratio 1:1:1 in neutralized media. These complexes were characterized by elemental analysis and estimation of vanadyl(IV) metal ions. The thermal stability behavior of these complexes was studied by TG-DTG-DTA analyses. The structures of these complexes were elucidated by s

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25

Hsu, S. Y., and F. W. Goetz. "Oxoanions stimulate in vitro ovulation and signal transduction pathways in goldfish (Carassius auratus) follicles." American Journal of Physiology-Endocrinology and Metabolism 263, no. 5 (1992): E943—E949. http://dx.doi.org/10.1152/ajpendo.1992.263.5.e943.

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The present study investigated the effects of a number of oxoanion compounds on in vitro ovulation of goldfish follicles and ovarian second messenger activities. Significant levels of ovulation were induced by 0.1 mM sodium chromate, 0.1 mM sodium metavanadate, 10 mM sodium molybdate, 0.1 mM sodium orthovanadate, 5 mM sodium selenate, 0.5 mM sodium tungstate, and 0.1 mM vanadyl sulfate. At levels that significantly stimulated ovulation, metavanadate, molybdate, orthovanadate, tungstate, and vanadyl sulfate also stimulated follicular phosphatidylinositol cycling and inhibited ovarian alkaline p

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26

Ramos-Barrado, J. R., C. Criado, E. Rodrı́guez-Castellón, P. Olivera-Pastor, and A. Jiménez-López. "Impedance spectroscopy analysis of some vanadyl phosphate intercalation compounds." Solid State Ionics 97, no. 1-4 (1997): 213–16. http://dx.doi.org/10.1016/s0167-2738(97)00021-0.

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27

Kirihara, Masayuki, Hiroko Kakuda, Motohiro Ichinose, et al. "Fragmentation of tertiary cyclopropanol compounds catalyzed by vanadyl acetylacetonate." Tetrahedron 61, no. 20 (2005): 4831–39. http://dx.doi.org/10.1016/j.tet.2005.03.033.

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28

Shimoni, Y., D. Severson, and H. S. Ewart. "Insulin resistance and the modulation of rat cardiac K+ currents." American Journal of Physiology-Heart and Circulatory Physiology 279, no. 2 (2000): H639—H649. http://dx.doi.org/10.1152/ajpheart.2000.279.2.h639.

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K+ currents were measured using a whole cell voltage-clamp method in enzymatically isolated rat ventricular myocytes obtained from two hyperinsulinemic, insulin-resistant models. Fructose-fed rats as well as genetically obese rats, both of which are resistant to the metabolic effects of insulin, were used. The normal augmentation of a calcium-independent sustained K+ current was reduced or abolished in insulin-resistant states. This resistance can be reversed by the insulin-sensitizing drug metformin. Vanadyl sulfate (3–4 wk treatment or after 5–6 h in vitro) enhanced the sustained K+ current.

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29

Ahmed, Rehana L., Alan T. Davis, and Khalil Ahmed. "Interference in Protein Assays of Biological Specimens by Vanadyl Compounds." Analytical Biochemistry 237, no. 1 (1996): 76–79. http://dx.doi.org/10.1006/abio.1996.0203.

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30

Yuen, Violet G., J. H. McNeill, and C. Orvig. "Comparison of the glucose-lowering properties of vanadyl sulfate and bis(maltolato)oxovanadium(IV) following acute and chronic administration." Canadian Journal of Physiology and Pharmacology 73, no. 1 (1995): 55–64. http://dx.doi.org/10.1139/y95-008.

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Numerous studies, both in vitro and in vivo, have demonstrated the insulin-mimetic properties of vanadium. Chronic oral administration of inorganic and organic compounds of both vanadium(IV) and vanadium(V) reduced plasma glucose levels and restored plasma lipid levels in streptozotocin-diabetic rats. We investigated the acute effects of both vanadyl sulfate and bis(maltolato)oxovanadium(IV) (BMOV), an organic vanadium compound, on plasma glucose levels by several routes of administration. Previous studies have shown that chronic administration of vanadyl sulfate has resulted in a sustained eu

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31

Abdulaeva, L. D., O. I. Silyukov, Yu V. Petrov, and I. A. Zvereva. "Low-Temperature Transformations of Protonic Forms of Layered Complex Oxides HLnTiO4and H2Ln2Ti3O10(Ln = La, Nd)." Journal of Nanomaterials 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/514781.

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In the present work protonic forms of layeredn=1,3Ruddlesden-Popper oxides HLnTiO4and H2Ln2Ti3O10(Ln = La, Nd) were used as the starting point for soft chemistry synthesis of two series of perovskite-like compounds by acid leaching and exfoliation, promoted by vanadyl sulfate. The last route leads to the nanostructured VO2+containing samples. Characterization by SEM, powder XRD, and TGA has been performed for the determination of the structure and composition of synthesized oxides.

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32

Riou, Didier, and Gérard Férey. "Intercalated Vanadyl Vanadate (VIVO)[VVO4] · 0.5[C3N2H12]: Hydrothermal Synthesis, Crystal Structure, and Structural Correlations with V2O5 and Other Vanadyl Compounds." Journal of Solid State Chemistry 120, no. 1 (1995): 137–45. http://dx.doi.org/10.1006/jssc.1995.1388.

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33

Sakurai, Hiromu, Satoko Funakoshi, and Yusuke Adachi. "New developments of insulinomimetic dinuclear vanadyl(IV)-tartrate complexes." Pure and Applied Chemistry 77, no. 9 (2005): 1629–40. http://dx.doi.org/10.1351/pac200577091629.

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The number of patients suffering from diabetes mellitus (DM) is increasing year by year throughout the world. In 2003, the world population was 6.3 billion, and the number of patients with DM in the adult population (20-79 years old) was 0.194 billion, which corresponded to 5.1 % of all disease incidence in that age range. In 2005, it is forecasted that the world population will increase to 8.0 billion and the ratio of DM to total disease incidence will increase to 6.3 %, with a disproportionate number of cases in Southeast Asia, the West Pacific, Central Asia, and North, Central, and South Am

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34

Etcheverry, S. B., E. G. Ferrer, and E. J. Baran. "Neue Beweise über die Wechselwirkung des Vanadyl(IV)-Kations mit Nucleotiden: 31P-NMR- und IR-Messungen in Lösung / New Evidence of the Interaction of the Vanadyl(IV) Cation with Nucleotides: 31P NMR and IR Measurements in Solution." Zeitschrift für Naturforschung B 44, no. 11 (1989): 1355–58. http://dx.doi.org/10.1515/znb-1989-1105.

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The interaction between the VO2+ cation and a number of nucleotides has been investigated by means of 31P NMR and IR measurements in solutions. The results support and extend previous conclusions obtained from electronic spectra and confirm the central role of the phosphate groups of the nucleotides in this process. Preliminary results obtained from IR spectra of some solid vanadyl/nucleotide compounds suggest a greater complexity of the metal-to ligand interaction in the solid state.

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35

Boscaro, Valentina, Alessandro Barge, Annamaria Deagostino, et al. "Effects of Vanadyl Complexes with Acetylacetonate Derivatives on Non-Tumor and Tumor Cell Lines." Molecules 26, no. 18 (2021): 5534. http://dx.doi.org/10.3390/molecules26185534.

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Vanadium has a good therapeutic potential, as several biological effects, but few side effects, have been demonstrated. Evidence suggests that vanadium compounds could represent a new class of non-platinum, metal antitumor agents. In the present study, we aimed to characterize the antiproliferative activities of fluorescent vanadyl complexes with acetylacetonate derivates bearing asymmetric substitutions on the β-dicarbonyl moiety on different cell lines. The effects of fluorescent vanadyl complexes on proliferation and cell cycle modulation in different cell lines were detected by ATP content

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36

Purcell, M., J. F. Neault, H. Malonga, H. Arakawa, and H. A. Tajmir-Riahi. "Interaction of human serum albumin with oxovanadium ions studied by FT-IR spectroscopy and gel and capillary electrophoresis." Canadian Journal of Chemistry 79, no. 10 (2001): 1415–21. http://dx.doi.org/10.1139/v01-162.

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Some oxovanadium compounds have shown potential to inhibit RNase activity, while at the same time not inhibiting DNase activity. Some vanadyl complexes also inhibit protein synthesis in rabbit reticulocytes, but induce activation of proteintyrosine kinase. To gain an insight into the interaction of oxovanadium ions with proteins, the present study was designed to examine the bindings of VOSO4 and NaVO3 salts with human serum albumin (HSA) in aqueous solution at physiological pH with metal ion concentrations of 0.0001 to 1 mM and HSA (fatty acid free) concentration of 2% w/v. Gel and capillary

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37

FUKUDA, Norio, and Toshihiro YAMASE. "In Vitro Antibacterial Activity of Vanadate and Vanadyl Compounds against Streptococcus pneumoniae." Biological & Pharmaceutical Bulletin 20, no. 8 (1997): 927–30. http://dx.doi.org/10.1248/bpb.20.927.

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38

Matsubayashi, Gen-etsu, and Seiji Ohta. "Intercalation of Ferrocene and Related Compounds into Interlayer Spaces of Vanadyl Phosphate." Chemistry Letters 19, no. 5 (1990): 787–90. http://dx.doi.org/10.1246/cl.1990.787.

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Goubitz, Kees, Pavla Čapková, Klára Melánová, Wim Molleman, and Henk Schenk. "Structure determination of two intercalated compounds VOPO4·(CH2)4O and VOPO4·OH—(CH2)2—O—(CH2)2—OH; synchrotron powder diffraction and molecular modelling." Acta Crystallographica Section B Structural Science 57, no. 2 (2001): 178–83. http://dx.doi.org/10.1107/s0108768100015603.

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The crystal structures of two intercalated compounds have been determined using a combination of synchrotron powder diffraction and molecular mechanics simulations: (1) vanadyl phosphate intercalated with tetrahydrofuran, VOPO4·(CH2)4O, and (2) vanadyl phosphate intercalated with diethylene glycol, VOPO4·HO(CH2)2O(CH2)2OH. Both intercalates preserve the tetragonal space group P4/n, as found in the host structure VOPO4·2H2O. (1): a = 6.208, c = 8.930 Å, Z = 2, Dx = 2.51 g cm−3; (2): a = 6.223, c = 11.417 Å, Z = 2, Dx = 2.66 g cm−3. Both intercalates exhibit the same type of orientational disord

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Müller-Buschbaum, Hk. "Strukturelle Unterschiede zwischen Sr2(VO)(AsO4)2 und Ba2(VO)(PO4)2 / Strucural Differences between Sr2(VO)(AsO 4)2 and Ba2(V O)(PO4)2." Zeitschrift für Naturforschung B 51, no. 9 (1996): 1290–94. http://dx.doi.org/10.1515/znb-1996-0912.

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Two new alkaline earth vanadyl compounds, Sr2(VO)(AsO4)2 (I) and Ba2(VO)(PO4)2 (II), have been prepared by solid state reactions in closed quartz tubes and characterized by single crystal X-ray diffraction methods. Crystal data: (I): monoclinic, C62h -I2/a, a = 6.873(2), b = 16.307(4), c = 7.196(2) Å, β = 115.67(2), Z = 4; (II): monoclinic, C32-I2, a = 9.471(2), b = 5.443(1), c = 16.972(4) Å, β = 101.65(2), Z = 4. (I) is isotypic to Sr2(VO)V2O8 and Sr2(VO)(PO 4)2. (II) shows significant differences to the strontium compounds as well as to Ba2(VO)(VO4)2. The differences of the crystal chemistry

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Mertens, B., and Hk Müller-Buschbaum. "Synthese und Röntgen-Strukturuntersuchung von Rb4Cd(VO)(V2O7)2Cl und Tl4Cd(VO)(V2O7)2Cl / Synthesis and X-Ray Structure Analysis of Rb4Cd(VO)(V2O7)2Cl und Tl4Cd(VO)(V2O7)2Cl." Zeitschrift für Naturforschung B 52, no. 4 (1997): 453–56. http://dx.doi.org/10.1515/znb-1997-0404.

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Abstract Single crystals of (I) Rb4Cd(VO)(V2O7)2Cl und Tl4Cd(VO)(V2O7)2Cl have been prepared by flux techniques. The compounds were examined by X-ray analysis. They crystallize with tetragonal symmetry, space group C14-P4 with (I): a=9.142(1); c=5.525(1), (II): a=9.150(1), c=5.405(1) A, Z = 4. Both compound belong to the K4CuV5O15Cl-Type. V (l) forms V2O7 double tetrahedra, connected by square V(2)O5 pyramids and CdO4Cl2 octahedra. The short V(2)-O distance indicates a vanadyl group.

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Shapkin, Nikolai P., E. A. Tokar, S. V. Gardionov, et al. "Polychelates Based on Magnesium, Aluminum, Iron, Zirconium, and Vanadyl Acetylacetonates - Synthesis, Structure and Properties." Key Engineering Materials 887 (May 2021): 184–200. http://dx.doi.org/10.4028/www.scientific.net/kem.887.184.

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The formation of polymeric acetylacetonates of magnesium, aluminum, iron, zirconium, and vanadyl under conditions of mechanochemical activation with subsequent condensation in boiling toluene has been investigated. The obtained compounds have been studied by the methods of gel chromatography, X-ray diffractometry, and positron annihilation and IR spectroscopy. Aluminum chelates have been studied by means of NMR spectroscopy. It has been demonstrated that the mechanochemical activation with subsequent boiling in toluene results in the formation of polymeric chelates, mostly those of iron, zirco

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Hradil, Pavel, Jiří Votinský, Karel Komárek, et al. "Adsorption of Vapours of Some Organic Compounds on Surface of Iron-Substituted Layered Vanadyl Phosphate." Collection of Czechoslovak Chemical Communications 65, no. 1 (2000): 47–57. http://dx.doi.org/10.1135/cccc20000047.

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Gas chromatographic measurement of specific retention volumes of vapours of selected groups of organic compounds has been used to determine differential molar enthalpy of adsorption of their molecules on the surface of layered vanadyl phosphate substituted with ferric ions having the composition of [Fe(H2O)]0.20(VO)0.80PO4. Various types of bonds of the molecules to the surface of the layered adsorbent including their probable orientation with respect to the layers have been discussed. It was observed a dependence of the specific peak elution volume and shape of chromatographic peak on the sam

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Kawabe, Kenji, Yutaka Yoshikawa, Yusuke Adachi, and Hiromu Sakurai. "Possible mode of action for insulinomimetic activity of vanadyl(IV) compounds in adipocytes." Life Sciences 78, no. 24 (2006): 2860–66. http://dx.doi.org/10.1016/j.lfs.2005.11.008.

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Zima, V., M. Kilián, M. Casciola, and L. Massinelli. "Intercalation Compounds of Vanadyl Phosphate Dihydrate with Rubidium Ion and Their Electrical Properties." Chemistry of Materials 11, no. 11 (1999): 3258–62. http://dx.doi.org/10.1021/cm990324q.

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Yang, Chuluo, Huiqiong Zhou, Xingguo Chen, Ying Liu, and Jingui Qin. "Synthesis and characterization of intercalation compounds of stilbazolium chromophores into layered vanadyl phosphate." Journal of Materials Chemistry 15, no. 16 (2005): 1637. http://dx.doi.org/10.1039/b418218a.

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BENES, L., and V. ZIMA. "ChemInform Abstract: Tetragonal Layered Compounds with Vanadyl Phosphate Structure and Their Intercalation Reactions." ChemInform 28, no. 30 (2010): no. http://dx.doi.org/10.1002/chin.199730236.

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Elbers, G., and G. Lehmann. "Electron Paramagnetic Resonance and Optical Absorption Spectra of VO2+ in CsCl Single Crystals." Zeitschrift für Naturforschung A 40, no. 5 (1985): 511–15. http://dx.doi.org/10.1515/zna-1985-0517.

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In vanadium-doped CsCl crystals grown from aqueous solutions anisotropic EPR spectra due to VO2+ are observed and analyzed at room temperature. Evidence is presented that isotropic spectra of this ion observed in this and other compounds are due to inclusions of growth solution and not to rapid rotation of the vanadyl ion in the solid as normally assumed. At 77 K a well resolved vibrational progression of about 820 cm −1 is observed in the first ligand field band of this ion. The optical absorption spectra indicate the presence of a second valence state of vanadium, most likely V3+, in varying

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De Sousa-Coelho, Ana Luísa, Gil Fraqueza, and Manuel Aureliano. "Repurposing Therapeutic Drugs Complexed to Vanadium in Cancer." Pharmaceuticals 17, no. 1 (2023): 12. http://dx.doi.org/10.3390/ph17010012.

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Repurposing drugs by uncovering new indications for approved drugs accelerates the process of establishing new treatments and reduces the high costs of drug discovery and development. Metal complexes with clinically approved drugs allow further opportunities in cancer therapy—many vanadium compounds have previously shown antitumor effects, which makes vanadium a suitable metal to complex with therapeutic drugs, potentially improving their efficacy in cancer treatment. In this review, covering the last 25 years of research in the field, we identified non-oncology-approved drugs suitable as liga

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Janssens, Jean-Paul, Youming Xu, Gerald Witte, A. Dick van Langeveld, S. Tiong Sie, and Jacob A. Moulijn. "Competitive effects of hetero-atom containing compounds in the hydrodemetallisation of vanadyl-tetraphenyl-porphyrin." Fuel 77, no. 12 (1998): 1367–75. http://dx.doi.org/10.1016/s0016-2361(98)00042-8.

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