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Pérez-Benítez A, Ariza-Ramírez JL, Fortis-Valera M, Arroyo-Carmona RE, Martínez de la Luz MI, Ramírez-Contreras D, Bernès S. Bis{[amino(iminiumyl)methyl]urea} tetrakis{2-[(dimethylamino)(iminiumyl)methyl]guanidine} di-μ 6-oxido-tetra-μ 3-oxido-tetradeca-μ 2-oxido-octaoxidodecavanadium(V) tetrahydrate. IUCRDATA 2022; 7:x220627. [PMID: 36339897 PMCID: PMC9462036 DOI: 10.1107/s2414314622006277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Accepted: 06/14/2022] [Indexed: 11/23/2022] Open
Abstract
In the crystal structure of the title compound, numerous N—H⋯O and O—H⋯O hydrogen bonds of medium strengths connect metforminium and guanylurea cations and centrosymmetric decavanadate(V) anions into a three-dimensional network structure. The title compound, (C4H12N5)4(C2H7N4O)2[V10O28]·4H2O, is a by-product obtained by reacting ammonium metavanadate(V), metformin hydrochloride and acetic acid in the presence of sodium hypochlorite, at pH = 5. The crystal structure comprises a decavanadate(V) anion (V10O28)6– lying on an inversion centre in space group P, while cations and solvent water molecules are placed in general positions, surrounding the anion, and forming numerous N—H⋯O and O—H⋯O hydrogen bonds. Metforminium (C4H12N5)+ and guanylurea (C2H7N4O)+ cations display the expected shape. Interestingly, in physiology the latter cation is known to be the main metabolite of the former one. The reported structure thus supports the role of sodium hypochlorite as an oxidizing reagent being able to degrade metformin hydrochloride to form guanylurea.![]()
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Ksiksi R, Abdelkafi-Koubaa Z, Mlayah-Bellalouna S, Aissaoui D, Marrakchi N, Srairi-Abid N, Faouzi Zid M, Graia M. Synthesis, structural characterization and antitumoral activity of (NH4)4Li2V10O28.10H2O compound. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129492] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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3
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Amanchi SR, Das SK. A Versatile Polyoxovanadate in Diverse Cation Matrices: A Supramolecular Perspective. Front Chem 2018; 6:469. [PMID: 30386767 PMCID: PMC6198037 DOI: 10.3389/fchem.2018.00469] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Accepted: 09/18/2018] [Indexed: 11/13/2022] Open
Abstract
A series of decavanadate based compounds, formulated as [Co(H2O)6][{Na4(H2O)14}{V10O28}]·4H2O (1), [Zn(H2O)6][Na3(H2O)14] [HV10O28]·4H2O (2), [HMTAH]2 [{Zn(H2O)4}2{V10O28}]·2H2O (3), [{Co(3-amp)(H2O)5}]2 [3-ampH]2 [V10O28] · 6H2O (4), [4-ampH]10[{Na(H2O)6}{HV10O28}][V10O28]·15H2O (5), [{4-ampH}6 {Co(H2O)6}3][V10O28]2·14H2O (6), and [{4-ampH}10{Zn(H2O)6}][V10O28]2·10H2O (7), have been synthesized (where HMTAH = mono-protonated hexamethylenetetramine, 3-ampH = protonated 3-amino pyridine and 4-ampH= protonated 4-aminopyridine) from the relevant aqueous sodium-vanadate solution, by varying the pH of the solution and amino pyridine/hexamine derivatives as well as transition metal salts (Co(II)- and Zn(II)-salts). In this series of compounds 1-7, the polyoxovanadate (POV) cluster [V10O28]6- is the common cluster anion, stabilized by diverse cations. The diverse supramolecular patterns around the decavanadate cluster anion in different cationic matrices have been described to understand the microenvironment in the decavanadate-based minerals. All of these compounds have solvent water molecules in their respective crystal lattices. Since water can interact directly with cations and anions, providing an additional stability and structural diversity, we have analyzed supramolecular water structures in all these compounds to comprehend the role of the lattice water in the formation of natural decavanadate containing minerals. Compounds 1-7, that are isolated at an ambient condition from aqueous solution, are characterized by routine spectral analysis, elemental analyses and finally unambiguously by single crystal X-ray crystallography.
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Affiliation(s)
| | - Samar K Das
- School of Chemistry, University of Hyderabad, Central University, Hyderabad, India
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Sánchez-Lara E, Treviño S, Sánchez-Gaytán BL, Sánchez-Mora E, Eugenia Castro M, Meléndez-Bustamante FJ, Méndez-Rojas MA, González-Vergara E. Decavanadate Salts of Cytosine and Metformin: A Combined Experimental-Theoretical Study of Potential Metallodrugs Against Diabetes and Cancer. Front Chem 2018; 6:402. [PMID: 30333969 PMCID: PMC6176007 DOI: 10.3389/fchem.2018.00402] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 08/20/2018] [Indexed: 01/15/2023] Open
Abstract
Cytosine, a DNA and RNA building-block, and Metformin, the most widely prescribed drug for the treatment of Type 2 Diabetes mellitus were made to react separately with ammonium or sodium metavanadates in acidic aqueous solutions to obtain two polyoxovanadate salts with a 6:1 ratio of cation-anion. Thus, compounds [HCyt]6[V10O28]·4H2O, 1 and [HMetf]6[V10O28]·6H2O, 2 (where HCyt = Cytosinium cation, [C4H6N3O]+ and HMetf = Metforminium cation, [C4H12N5]+) were obtained and characterized by elemental analysis, single crystal X-ray diffraction, vibrational spectroscopy (IR and Raman), solution 51V-NMR, thermogravimetric analysis (TGA-DTGA), as well as, theoretical methods. Both compounds crystallized in P1 ¯ space group with Z' = 1/2, where the anionic charge of the centrosymmetric ion [V10O28]6- is balanced by six Cytosinium and six Metforminium counterions, respectively. Compound 1 is stabilized by π-π stacking interactions coming from the aromatic rings of HCyt cations, as denoted by close contacts of 3.63 Å. On the other hand, guanidinium moieties from the non-planar HMetf in Compound 2 interact with decavanadate μ2-O atoms via N-H···O hydrogen bonds. The vibrational spectroscopic data of both IR and Raman spectra show that the dominant bands in the 1000-450 cm-1 range are due to the symmetric and asymmetric ν(V-O) vibrational modes. In solution, 51V-NMR experiments of both compounds show that polyoxovanadate species are progressively transformed into the monomeric, dimeric and tetrameric oxovanadates. The thermal stability behavior suggests a similar molecular mechanism regarding the loss of water molecules and the decomposition of the organic counterions. Yet, no changes were observed in the TGA range of 540-580°C due to the stability of the [V10O28]6- fragment. Dispersion-corrected density functional theory (DFT-D) calculations were carried out to model the compounds in aqueous phase using a polarized continuum model calculation. Optimized structures were obtained and the main non-covalent interactions were characterized. Biological activities of these compounds are also under investigation. The combination of two therapeutic agents opens up a window toward the generation of potential metalopharmaceuticals with new and exciting pharmacological properties.
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Affiliation(s)
- Eduardo Sánchez-Lara
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Samuel Treviño
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Brenda L. Sánchez-Gaytán
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - Enrique Sánchez-Mora
- Instituto de Física “Luis Rivera Terrazas”, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | - María Eugenia Castro
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
| | | | - Miguel A. Méndez-Rojas
- Departamento de Ciencias Químico-Biológicas, Universidad de las Américas Puebla, Puebla, Mexico
| | - Enrique González-Vergara
- Centro de Química del Instituto de Ciencias, Benemérita Universidad Autónoma de Puebla, Puebla, Mexico
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Borunda T, Myers AJ, Mary Fisher J, Crans DC, Johnson MD. Confinement Effects on Chemical Equilibria: Pentacyano(Pyrazine)Ferrate(II) Stability Changes within Nanosized Droplets of Water. Molecules 2018; 23:E858. [PMID: 29642558 PMCID: PMC6016957 DOI: 10.3390/molecules23040858] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 03/30/2018] [Accepted: 04/04/2018] [Indexed: 11/16/2022] Open
Abstract
Nanoscale confinement is known to impact properties of molecules and we observed changes in the reactivity of an iron coordination complex, pentacyano(pyrazine)ferrate(II). The confinement of two coordination complexes in a sodium AOT/isooctane reverse micellar (RM) water droplet was found to dramatically increase the hydrolysis rate of [Fe(CN)₅pyz]3- and change the monomer-dimer equilibria between [Fe(CN)₅pyz]3- and [Fe₂(CN)10pyz]6-. Combined UV-Vis and ¹H-NMR spectra of these complexes in RMs were analyzed and the position of the monomer-dimer equilibrium and the relative reaction times were determined at three different RM sizes. The data show that the hydrolysis rates (loss of pyrazine) are dramatically enhanced in RMs over bulk water and increase as the size of the RM decreases. Likewise, the monomer-dimer equilibrium changes to favor the formation of dimer as the RM size decreases. We conclude that the effects of the [Fe(CN)₅pyz]3- stability is related to its solvation within the RM.
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Affiliation(s)
- Teofilo Borunda
- Department of Chemistry & Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA.
| | - Alexander J Myers
- Department of Chemistry & Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA.
| | - J Mary Fisher
- Department of Chemistry, Colorado State University, Ft. Collins, CO 80523, USA.
| | - Debbie C Crans
- Department of Chemistry, Colorado State University, Ft. Collins, CO 80523, USA.
| | - Michael D Johnson
- Department of Chemistry & Biochemistry, New Mexico State University, Las Cruces, NM 88003, USA.
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Glycine and metformin as new counter ions for mono and dinuclear vanadium(V)-dipicolinic acid complexes based on the insulin-enhancing anions: Synthesis, spectroscopic characterization and crystal structure. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.055] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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7
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Crans DC, Peters BJ, Wu X, McLauchlan CC. Does anion-cation organization in Na+-containing X-ray crystal structures relate to solution interactions in inhomogeneous nanoscale environments: Sodium-decavanadate in solid state materials, minerals, and microemulsions. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.03.016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Omri I, Mhiri T, Graia M. A new monohydrogendecavanadate (V)-dihydrogendecavanadate (V) with dibutylammonium cations [C 8 NH 20 ] 9 [H 2 V 10 O 28 ][HV 10 O 28 ].2.13H 2 O: Synthesis, crystal structure, vibrational and optical properties. J Mol Struct 2016. [DOI: 10.1016/j.molstruc.2015.12.011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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9
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Sánchez-Lombardo I, Baruah B, Alvarez S, Werst KR, Segaline NA, Levinger NE, Crans DC. Size and shape trump charge in interactions of oxovanadates with self-assembled interfaces: application of continuous shape measure analysis to the decavanadate anion. NEW J CHEM 2016. [DOI: 10.1039/c5nj01788b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Using 51V NMR spectroscopy, dynamic light scattering and continuous shape analysis to characterize two polyoxometalate-encapsulation in reverse micelles.
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Affiliation(s)
| | - Bharat Baruah
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
- Department of Chemistry
| | - Santiago Alvarez
- Departament de Química Inorganica
- Institut de Química Teorica i Computacional (IQTCUB)
- Universitat de Barcelona
- 08028 Barcelona
- Spain
| | - Katarina R. Werst
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
| | | | - Nancy E. Levinger
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
| | - Debbie C. Crans
- Department of Chemistry
- Colorado State University
- Colorado 80523-1872
- USA
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Ghasemi K, Ghasemi F, Rezvani AR, Graiff C, Notash B. Potential antidiabetic drugs of metformin with insulin-enhancing anions [VO2(dipic)]− and [VO2(dipic-OH)]−: Synthesis, characterization and X-ray crystal structure. Polyhedron 2015. [DOI: 10.1016/j.poly.2015.09.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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11
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McLauchlan CC, Peters BJ, Willsky GR, Crans DC. Vanadium–phosphatase complexes: Phosphatase inhibitors favor the trigonal bipyramidal transition state geometries. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.12.012] [Citation(s) in RCA: 96] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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12
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Treviño S, Sánchez-Lara E, Sarmiento-Ortega VE, Sánchez-Lombardo I, Flores-Hernández JÁ, Pérez-Benítez A, Brambila-Colombres E, González-Vergara E. Hypoglycemic, lipid-lowering and metabolic regulation activities of metforminium decavanadate (H2Metf)3 [V10O28]·8H2O using hypercaloric-induced carbohydrate and lipid deregulation in Wistar rats as biological model. J Inorg Biochem 2015; 147:85-92. [PMID: 25920353 DOI: 10.1016/j.jinorgbio.2015.04.002] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2014] [Revised: 04/01/2015] [Accepted: 04/01/2015] [Indexed: 12/14/2022]
Abstract
Because of the increasing global spread of type 2 diabetes mellitus, there is a need to develop new antidiabetic agents. Recently we have synthesized new decavanadates using metformin as counterion. In particular, the compound containing three metforminium dications has been obtained in high yield and has been completely characterized. Biological studies using Wistar rats that have been fed with a high caloric diet inducing insulin resistance and metabolic syndrome were carried out. Results of the impact on key biochemical parameters mediated by metformin alone and the new compound are here presented. The metforminium decavanadate (H2Metf)3[V10O28]·8H2O, abbreviated as Metf-V10O28, was shown to have pharmacological potential as a hypoglycemic, lipid-lowering and metabolic regulator, since the resulting compound made of the two components with antidiabetic activities, reduces both dosage and time of administration (twice a week). Hence, due to the beneficial effects induced by the metforminium decavanadate we recommend to continue the exploration into the mechanism and toxicology of this new compound.
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Affiliation(s)
- Samuel Treviño
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, CP 72570 Puebla, PUE, Mexico
| | - Eduardo Sánchez-Lara
- Centro de Química, ICUAP, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, CP 72570 Puebla, PUE, Mexico
| | - Víctor Enrique Sarmiento-Ortega
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, CP 72570 Puebla, PUE, Mexico
| | - Irma Sánchez-Lombardo
- Centro de Química, ICUAP, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, CP 72570 Puebla, PUE, Mexico
| | - José Ángel Flores-Hernández
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, CP 72570 Puebla, PUE, Mexico
| | - Aarón Pérez-Benítez
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, CP 72570 Puebla, PUE, Mexico
| | - Eduardo Brambila-Colombres
- Facultad de Ciencias Químicas, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, CP 72570 Puebla, PUE, Mexico
| | - Enrique González-Vergara
- Centro de Química, ICUAP, Benemérita Universidad Autónoma de Puebla, 14 Sur y Av. San Claudio, Col. San Manuel, CP 72570 Puebla, PUE, Mexico.
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Affiliation(s)
- Debbie C. Crans
- Department of Chemistry, Colorado State University Fort Collins, 80523 CO, USA, http://wp.natsci.colostate.edu/crans/
| | - Ebbe Nordlander
- Kemicentrum, Lunds Universitet, Getingevägen 60 Lund S‐22241, Sweden, http://www.chemphys.lu.se/people/nordlander/
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Sánchez-Lombardo I, Sánchez-Lara E, Pérez-Benítez A, Mendoza Á, Bernès S, González-Vergara E. Synthesis of Metforminium(2+) Decavanadates - Crystal Structures and Solid-State Characterization. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402277] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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