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Gashigullin R, Kendin M, Martynova I, Tsymbarenko D. Diverse Coordination Chemistry of the Whole Series Rare-Earth L-Lactates: Synthetic Features, Crystal Structure, and Application in Chemical Solution Deposition of Ln 2O 3 Thin Films. Molecules 2023; 28:5896. [PMID: 37570867 PMCID: PMC10421212 DOI: 10.3390/molecules28155896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 07/25/2023] [Accepted: 08/04/2023] [Indexed: 08/13/2023] Open
Abstract
Rare-earth (RE, Ln) carboxylates are widely studied as precursors of RE oxide-based nanomaterials; however, no systematic studies of RE L-lactates (HLact = 2-hydroxypropanoic acid) have been reported to date. In the present work, a profound structural investigation of RE L-lactates is carried out. A family of RE lactate complexes of the general formula LnLact3∙nH2O (Ln = La, Ce-Nd, Sm-Lu, Y; n = 2-3) are synthesized and characterized by CHN, TGA, and FTIR as well as by powder and single-crystal XRD methods.The existence of four novel structural types (1-Ln-4-Ln) is revealed. Compounds of the 1-Ln type (Ln = La, Ce, Pr) exhibit a chain polymeric structure, whereas 2-Ln-4-Ln compounds are molecular crystals consisting of dimeric (2-Ln; Ln = La, Ce-Nd) or monomeric (3-Ln-Ln = Sm-Lu, Y; 4-Ln-Ln = Sm-Gd, Y) species. The crystal structures of 1-Ln-4-Ln compounds are discussed in terms of their coordination geometry and supramolecular arrangement. Solutions of yttrium and lanthanum lactates with diethylenetriamine are applied for the chemical deposition of Y2O3 and La2O3 thin films.
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Affiliation(s)
- Ruslan Gashigullin
- Department of Materials Science, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Mikhail Kendin
- Department of Materials Science, Lomonosov Moscow State University, Moscow 119991, Russia
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Irina Martynova
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
| | - Dmitry Tsymbarenko
- Department of Chemistry, Lomonosov Moscow State University, Moscow 119991, Russia
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Sharma S, Das D, Sadhu B, Sharma N. Vanadium(IV) coordination complexes with excellent biological activities: a synthetic, characterization, and density functional theory approach. J COORD CHEM 2022. [DOI: 10.1080/00958972.2022.2060744] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Sonika Sharma
- Department of Chemistry, Himachal Pradesh University, Shimla, India
| | - Debasish Das
- Waste Management Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Biswajit Sadhu
- Health Physics Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Neeraj Sharma
- Department of Chemistry, Himachal Pradesh University, Shimla, India
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Synthesis, spectral and structural characterization of vanadium lactate, malate and citrate with large counter cation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127805] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Šimuneková M, Schwendt P, Gyepes R, Šimunek J, Filo J, Bujdoš M, Tatiersky J. Bimetallic copper–vanadium mandelato complexes with bpy and phen as ancillary ligands. 51V NMR spectra of vanadates in DMSO. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Costa BC, Tokuhara CK, Rocha LA, Oliveira RC, Lisboa-Filho PN, Costa Pessoa J. Vanadium ionic species from degradation of Ti-6Al-4V metallic implants: In vitro cytotoxicity and speciation evaluation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 96:730-739. [DOI: 10.1016/j.msec.2018.11.090] [Citation(s) in RCA: 81] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 10/21/2018] [Accepted: 11/30/2018] [Indexed: 11/30/2022]
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Zechel F, Schwendt P, Gyepes R, Šimunek J, Tatiersky J, Krivosudský L. Vanadium( v) complexes of mandelic acid. NEW J CHEM 2019. [DOI: 10.1039/c9nj02275a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Di- and trinuclear complexes of vanadium(v) and mandelic acid were prepared revealing surprising geometry of the trinuclear species.
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Affiliation(s)
- Filip Zechel
- Department of Inorganic Chemistry
- Faculty of Natural Sciences
- Comenius University in Bratislava
- Mlynská dolina
- 842 15 Bratislava
| | - Peter Schwendt
- Department of Inorganic Chemistry
- Faculty of Natural Sciences
- Comenius University in Bratislava
- Mlynská dolina
- 842 15 Bratislava
| | - Róbert Gyepes
- Department of Inorganic Chemistry
- Faculty of Science
- Charles University
- 128 00 Praha
- Czech Republic
| | - Ján Šimunek
- Department of Inorganic Chemistry
- Faculty of Natural Sciences
- Comenius University in Bratislava
- Mlynská dolina
- 842 15 Bratislava
| | - Jozef Tatiersky
- Department of Inorganic Chemistry
- Faculty of Natural Sciences
- Comenius University in Bratislava
- Mlynská dolina
- 842 15 Bratislava
| | - Lukáš Krivosudský
- Department of Inorganic Chemistry
- Faculty of Natural Sciences
- Comenius University in Bratislava
- Mlynská dolina
- 842 15 Bratislava
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Li X, Dai JW, Wang HX, Wu AA, Zhou ZH. Chiral and achiral vanadyl lactates with vibrational circular dichroism: Toward the chiral metal cluster in nitrogenase. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.09.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Mohammadnezhad G, Böhme M, Geibig D, Burkhardt A, Görls H, Plass W. Chiral vanadium(v) complexes with 2-aminoglucose Schiff-base ligands and their solution configurations: synthesis, structures, and DFT calculations. Dalton Trans 2013; 42:11812-23. [DOI: 10.1039/c3dt50890k] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Sokolov MN, Adonin SA, Virovets AV, Abramov PA, Vicent C, Llusar R, Fedin VP. Complexes of M3S44+ (M=Mo, W) with chiral alpha-hydroxy and aminoacids: Synthesis, structure and solution studies. Inorganica Chim Acta 2013. [DOI: 10.1016/j.ica.2012.08.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Li Y, Yan P, Hou G, Li H, Chen P, Li G. Luminescence of unique 1D tube-like lactate lanthanide coordination polymers. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2012.09.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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14
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Bromoperoxidases and functional enzyme mimics as catalysts for oxidative bromination—A sustainable synthetic approach. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.04.003] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Pakchung AAH, Soe CZ, Lifa T, Codd R. Complexes formed in solution between vanadium(IV)/(V) and the cyclic dihydroxamic acid putrebactin or linear suberodihydroxamic acid. Inorg Chem 2011; 50:5978-89. [PMID: 21627146 PMCID: PMC3124108 DOI: 10.1021/ic1025119] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2010] [Indexed: 01/25/2023]
Abstract
An aerobic solution prepared from V(IV) and the cyclic dihydroxamic acid putrebactin (pbH(2)) in 1:1 H(2)O/CH(3)OH at pH = 2 turned from blue to orange and gave a signal in the positive ion electrospray ionization mass spectrometry (ESI-MS) at m/z(obs) 437.0 attributed to the monooxoV(V) species [V(V)O(pb)](+) ([C(16)H(26)N(4)O(7)V](+), m/z(calc) 437.3). A solution prepared as above gave a signal in the (51)V NMR spectrum at δ(V )= -443.3 ppm (VOCl(3), δ(V) = 0 ppm) and was electron paramagnetic resonance silent, consistent with the presence of [V(V)O(pb)](+). The formation of [V(V)O(pb)](+) was invariant of [V(IV)]:[pbH(2)] and of pH values over pH = 2-7. In contrast, an aerobic solution prepared from V(IV) and the linear dihydroxamic acid suberodihydroxamic acid (sbhaH(4)) in 1:1 H(2)O/CH(3)OH at pH values of 2, 5, or 7 gave multiple signals in the positive and negative ion ESI-MS, which were assigned to monomeric or dimeric V(V)- or V(IV)-sbhaH(4) complexes or mixed-valence V(V)/(IV)-sbhaH(4) complexes. The complexity of the V-sbhaH(4) system has been attributed to dimerization (2[V(V)O(sbhaH(2))](+) ↔ [(V(V)O)(2)(sbhaH(2))(2)](2+)), deprotonation ([V(V)O(sbhaH(2))](+) - H(+) ↔ [V(V)O(sbhaH)](0)), and oxidation ([V(IV)O(sbhaH(2))](0) -e(-) ↔ [V(V)O(sbhaH(2))](+)) phenomena and could be described as the sum of two pH-dependent vectors, the first comprising the deprotonation of hydroxamate (low pH) to hydroximate (high pH) and the second comprising the oxidation of V(IV) (low pH) to V(V) (high pH). Macrocyclic pbH(2) was preorganized to form [V(V)O(pb)](+), which would provide an entropy-based increase in its thermodynamic stability compared to V(V)-sbhaH(4) complexes. The half-wave potentials from solutions of [V(IV)]:[pbH(2)] (1:1) or [V(IV)]:[sbhaH(4)] (1:2) at pH = 2 were E(1/2) -335 or -352 mV, respectively, which differed from the expected trend (E(1/2) [VO(pb)](+/0) < V(V/IV)-sbhaH(4)). The complex solution speciation of the V(V)/(IV)-sbhaH(4) system prevented the determination of half-wave potentials for single species. The characterization of [V(V)O(pb)](+) expands the small family of documented V-siderophore complexes relevant to understanding V transport and assimilation in the biosphere.
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Affiliation(s)
- Amalie A. H. Pakchung
- Center for Heavy Metals Research, School of Chemistry and School of Medical Sciences (Pharmacology) and Bosch Institute, University of Sydney, New South Wales 2006, Australia
| | - Cho Zin Soe
- Center for Heavy Metals Research, School of Chemistry and School of Medical Sciences (Pharmacology) and Bosch Institute, University of Sydney, New South Wales 2006, Australia
| | - Tulip Lifa
- Center for Heavy Metals Research, School of Chemistry and School of Medical Sciences (Pharmacology) and Bosch Institute, University of Sydney, New South Wales 2006, Australia
| | - Rachel Codd
- Center for Heavy Metals Research, School of Chemistry and School of Medical Sciences (Pharmacology) and Bosch Institute, University of Sydney, New South Wales 2006, Australia
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Synthesis and characterization of dinuclear vanadium(V) oxido peroxido tartrato complexes. TRANSIT METAL CHEM 2010. [DOI: 10.1007/s11243-010-9389-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Bai FY, Li XT, Zhu GS, Xing YH. Synthesis and structure of a new scorpionate-dithio carboxyl oxovanadium complex and an organic dithio carboxyl compound. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2010; 75:1388-1393. [PMID: 20206578 DOI: 10.1016/j.saa.2009.12.074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2009] [Revised: 12/15/2009] [Accepted: 12/31/2009] [Indexed: 05/28/2023]
Abstract
A new complex of oxovanadium(IV), V(2)O(2)[(HB(pz)(3))(2)(pyrro)(2) (1) and a dimer-dithio carboxyl compound (C(5)H(8)NS(2))(2) (2) have been synthesized by the reaction of VOSO(4).nH(2)O with NaHB(pz)(3) and pyrrolidine dithio carboxylic acid ammonium salt. They were characterized by element analysis, IR spectra, UV-vis spectra and X-ray diffraction. Structural analyses of 1 and 2 gave the following parameters: 1, triclinic, P-1, a=7.732(4)A, b=14.285(8)A, c=17.802(9)A, alpha=101.314(8) degrees , beta=92.682(9) degrees , gamma=92.228(9) degrees , V=1923.6(18)A(3), and Z=4; 2, monoclinic, C2/c, a=13.857(2)A, b=10.4213(18)A, c=9.436(2)A, beta=97.099(2), V=1352.1(4)A(3), and Z=4. In complex 1, vanadium atom adopts a distorted tetragonal bipyramid structure, which is typical for oxovanadium(IV) complexes. Compound 2 is a dimer-dithio carboxyl compound with S-S bond. In addition, thermal analysis was performed for analyzing the stabilization of the complexes.
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Affiliation(s)
- F Y Bai
- Department of Material Science and Engineering, Key Laboratory of Automobile Materials of Ministry of Education, Jilin University, Changchun 130012, PR China
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Yun G, Hwang Y, Yun H, Do J, Jacobson AJ. A Vanadium Tellurate, (NH4)2[VO2]2[TeO4(OH)2], Containing Two Edge-Shared Square-Pyramidal VO5 Groups. Inorg Chem 2009; 49:229-33. [DOI: 10.1021/ic9018025] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Gyiae Yun
- Department of Chemistry, Konkuk University, Seoul 143-701, Republic of Korea
| | - Yunmi Hwang
- Department of Chemistry, Konkuk University, Seoul 143-701, Republic of Korea
| | - Hoseop Yun
- Department of Chemistry, Division of Energy Systems Research, Ajou University, Suwon 442-749, Republic of Korea
| | - Junghwan Do
- Department of Chemistry, Konkuk University, Seoul 143-701, Republic of Korea
| | - Allan J. Jacobson
- Department of Chemistry, University of Houston, Houston, Texas 77204-5641
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Schwendt P, Tracey AS, Tatiersky J, Gáliková J, Zák Z. Vanadium(V) tartrato complexes: speciation in the H3O+(OH-)/H2VO4-/(2R,3R)-tartrate system and X-ray crystal structures of Na4[V4O8(rac-tart)2].12H2O and (NEt4)4[V4O8((R,R)-tart)2].6H2O (tart = C4H2O6(4-)). Inorg Chem 2007; 46:3971-83. [PMID: 17419617 DOI: 10.1021/ic062223h] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A study of the aqueous H3O+(OH-)/H2VO4-/(2R,3R)-tartrate system has been performed at 273 K in a 1.0 mol/L Na+(Cl-) ionic medium using 51V NMR spectroscopy. In this relatively complicated system, more than 12 different species were observed. Ligand concentration, vanadate concentration, and pH variation studies were carried out, particularly for the range of pH 5.8-8.0 and for pH 2.4. Chemical shifts, vanadium-ligand stoichiometry, and also composition and formation constants for some, but not all, species are given. Despite some reduction of vanadium(V) to vanadium(IV) in an acidic medium at pH approximately 2.4, the stoichiometries of the principal species in solution at this pH were determined. Electrospray ionization mass spectra for some solutions were obtained and were in accordance with the conclusions drawn from the speciation studies. A series of crystalline vanadium(V) tartrato complexes M4[V4O8(tart)2].aq were also prepared and characterized. X-ray diffraction studies of Na4[V4O8(rac-tart)2].12H2O (1) and (NEt4)4[V4O8((R,R)-tart)2].6H2O (2) revealed unique tetranuclear [V4O8(tart)2]4- ions for which the {V4O4} rings have boat conformations.
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Affiliation(s)
- Peter Schwendt
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, MlynskA dolina, Bratislava 84215, Slovak Republic.
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Synthesis and characterization of some oxovanadium(V) complexes with internally functionallized oximes. Crystal and molecular structure of heptacoordinated [VOCl{ON=C(CH3) (C4H3S-2)}2] · CH3OH. TRANSIT METAL CHEM 2007. [DOI: 10.1007/s11243-007-0182-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Sharma V, Sharma V, Bohra R, Drake JE, Hursthouse MB, Light ME. Synthesis and characterization of some oxovanadium(V) complexes with internally functionalized oximes: Crystal and molecular structures of heptacoordinated [VO{ONC(CH3)(C4H3O-2)}3] and [VO{ONC(CH3)(C4H3S-2)}3]·0.5C6H6. Inorganica Chim Acta 2007. [DOI: 10.1016/j.ica.2006.10.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hsieh SH, Kuo YP, Gau HM. Synthesis, characterization, and structures of oxovanadium(v) complexes of Schiff bases of β-amino alcohols as tunable catalysts for the asymmetric oxidation of organic sulfides and asymmetric alkynylation of aldehydes. Dalton Trans 2007:97-106. [PMID: 17160179 DOI: 10.1039/b613212j] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Oxovanadium(V) complexes and with general formula VO(L3*)(OR5) were prepared in quantitative yields in alcohol (R5OH) from reactions of VO(O-i-Pr)3 and tridentate Schiff bases of beta-amino alcohols having one or two stereogenic centers, (HO)C*(R1)(R2)C*H(R3)N[double bond, length as m-dash]CH(2-OH-3,5-R4(2)-C6H2) (H2L3*). The alkoxy OR5 ligand exchanges readily with the alcoholic molecule in the solvent. Crystal structures of and were determined to be five-coordinate square pyramidal monomers. However, 1H NMR spectra of the complexes reveal two sets of signals, indicating the presence of two isomers in solution. The two isomers are suggested to be the endo/exo pair or the monomer/dimer pair. Asymmetric oxidations of methyl phenyl sulfide catalyzed by catalyst precursors were demonstrated to afford the chiral sulfoxide in yields and ee values similar to those obtained from the in situ-formed catalytic systems of VO(acac)2 and corresponding Schiff base ligands. Complexes and are also good catalysts for asymmetric alkynyl additions to aldehydes. Structural differences between the oxovanadium complexes, for inducing high stereoselectivities in the asymmetric oxidation of organic sulfides and the asymmetric alkynyl addition to aldehydes, are rationalized.
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Affiliation(s)
- Sheng-Hsiung Hsieh
- Department of Chemistry, National Chung-Hsing University, Taichung, 402, Taiwan
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Complexation between vanadium (V) and phenyllactate: Synthesis, spectral studies and crystal structure of (NEt4)(NH4)3[V2O2(O2)2(R-3-phlact)2][V2O2(O2)2(S-3-phlact)2]·6H2O, [3-phlact=3-phenyllactato(2−)]. Inorganica Chim Acta 2005. [DOI: 10.1016/j.ica.2005.06.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Synthesis and characterization of vanadium(V) complexes with ?-hydroxyhippuric acid. The X-ray crystal structure of (NBu 4)2[V2O2(O2)2(R-?-hhip) (S-?-hhip)]�5H2O,[?-hhip = ?-hydroxyhippurato(2-)]. TRANSIT METAL CHEM 2004. [DOI: 10.1007/s11243-004-5363-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ahmed M, Schwendt P, Marek J, Sivák M. Synthesis, solution and crystal structures of dinuclear vanadium(V) oxo monoperoxo complexes with mandelic acid: (NR4)2[V2O2(O2)2(mand)2]·xH2O [R=H, Me, Et; mand=mandelato(2−)=C8H6O32−]. Polyhedron 2004. [DOI: 10.1016/j.poly.2003.11.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Gorzsás A, Andersson I, Pettersson L. Speciation in the aqueous H+/H2VO4−/H2O2/l-(+)-lactate system. Dalton Trans 2003. [DOI: 10.1039/b303598k] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kaliva M, Kyriakakis E, Salifoglou A. Reactivity investigation of dinuclear vanadium(IV,V)-citrate complexes in aqueous solutions. A closer look into aqueous vanadium-citrate interconversions. Inorg Chem 2002; 41:7015-23. [PMID: 12495339 DOI: 10.1021/ic020323r] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Well-known vanadium(IV)- and vanadium(V)-citrate complexes have been employed in transformations involving vanadium redox as well as nonredox processes. The employed complexes include K(2)[V(2)O(4)(C(6)H(6)O(7))(2)] x 4H(2)O, K(4)[V(2)O(4)(C(6)H(5)O(7))(2)] x 5.6H(2)O, K(2)[V(2)O(2)(O(2))(2)(C(6)H(6)O(7))(2)] x 2H(2)O, K(4)[V(2)O(2)(C(6)H(4)O(7))(2)] x 6H(2)O, K(3)[V(2)O(2)(C(6)H(4)O(7))(C(6)H(5)O(7))] x 7H(2)O, (NH(4))(4)[V(2)O(2)(C(6)H(4)O(7))(2)] x 2H(2)O, and (NH(4))(6)[V(2)O(4)(C(6)H(4)O(7))(2)] x 6H(2)O. Reactions toward hydrogen peroxide at different vanadium(IV,V):H(2)O(2) ratios were crucial in delineating the routes leading to the interconversion of the various species. Equally important thermal transformations were critical in showing the linkage between pairs of dinuclear vanadium-citrate peroxo as well as nonperoxo complexes, for which the important vanadium(V)-assisted oxidative decarboxylation, leading to reduction of vanadium(V) to vanadium(IV), seemed to be a plausible pathway in place for all the cases examined. FT-IR spectroscopy and X-ray crystallography were instrumental in the identification of the arising products of all investigated reactions. Collectively, the data support the existence of chemical links between different and various structural forms of dinuclear vanadium(IV,V)-citrate complexes in aqueous media. Furthermore, in corroboration of past studies, the examined interconversions lend credence to the notion that the involved species are active participants in the respective aqueous distributions of the metal ion in the presence of the physiological ligand citrate. The concomitant significance of structure-specific species relating to soluble and potentially bioavailable forms of vanadium is mentioned.
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Affiliation(s)
- M Kaliva
- Department of Chemistry, University of Crete, Heraklion 71409, Greece
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Cotton F, Barnard TS, Daniels LM, Murillo CA. First water soluble Mo24+ compounds spanned by four α-hydroxycarboxylate anions. INORG CHEM COMMUN 2002. [DOI: 10.1016/s1387-7003(02)00466-5] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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