Hydrothermal synthesis and crystal structures of two novel vanadium oxides containing interlamellar transition metal complexes

Ollivier, Patricia J.; DeBoard, J. R.D.; Zapf, Pamela J.; Zubieta, Jon; Meyer, Linda M.; Wang, Chwan Chin; Mallouk, Thomas E.; Haushalter, Robert C.

doi:10.1016/s0022-2860(98)00469-4

Cited by 25 publications

(11 citation statements)

References 17 publications

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“…The Co–O bond length of 2.120(5) Å is comparable to those reported for Co–O–V linkages in other POVs. − The Co1-centered complex is joined to Co2 via a teta ligand acting bidentate to Co2 and monodentate to Co1. To the best of our knowledge, such an interconnection has never been observed before and no example could be found in the Cambridge Structure Database.…”

Section: Resultssupporting

confidence: 69%

Covalent Co–O–V and Sb–N Bonds Enable Polyoxovanadate Charge Control

et al. 2017

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The formation of [{CoII(teta)2}{CoII2(tren)(teta)2}VIV15SbIII6O42(H2O)]·ca.9H2O [teta = triethylenetetraamine; tren = tris(2-aminoethyl)amine] illustrates a strategy toward reducing the molecular charge of polyoxovanadates, a key challenge in their use as components in single-molecule electronics. Here, a V–O–Co bond to a binuclear Co2+-centered complex and a Sb–N bond to the terminal N atom of a teta ligand of a mononuclear Co2+ complex allow for full charge compensation of the archetypal molecular magnet [V15Sb6O42(H2O)]6–. Density functional theory based electron localization function analysis demonstrates that the Sb–N bond has an electron density similar to that of a Sb–O bond. Magnetic exchange coupling between the VIV and CoII spin centers mediated via the Sb–N bridge is comparably weakly antiferromagnetic.

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Section: Resultssupporting

confidence: 69%

Covalent Co–O–V and Sb–N Bonds Enable Polyoxovanadate Charge Control

et al. 2017

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“…Demonstrations of the great flexibility of polyoxovanadates to adopt a wide range of different cluster, chain, and network frameworks have been made, which illustrate the ability of vanadium to adopt varied coordination environments (octahedral, square pyramidal, tetrahedral) and oxidation states (5+ and 4+). Examples include the cluster species {V 4 O 12 } 4- , {V 10 O 28 } 6- , the chain species {V 2 O 6 } 2- , {V 4 O 12 } 4- , and the layered species {V 12 O 32 } 2- , and {V 6 O 17 } 2- . As has been stated previously, the diversity of polyoxovanadate species makes an accurate prediction of their structures an extremely daunting task.…”

mentioning

confidence: 95%

“…In the large family of polyoxovanadate/metal−ligand (VO x /M/L) systems, the V 6 O 16 2- and Cu(pyz) 2 2+ layers are unique thus far. The closest relative found has been the [{M(bpy)} 2 V 12 O 32 ] (M = Ni, Co, Cu) series of compounds, with an identical V/O ratio. However, the chelating 2,2‘-bipyridyl ligand, in place of pyrazine, leads to mixed Cu/V layers in the structure.…”

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confidence: 99%

Synthesis and Properties of V₆O₁₆Cu(C₄H₄N₂)₂·(H₂O)_0.22(1): Charge Density Matching of a Metal-Segregated Layer Structure

Maggard

Boyle

2003

Inorg. Chem.

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A metal-segregated layered compound, containing square nets of Cu(pyz)(2)(2+) and buckled V(6)O(16)(2)(-) layers, has been synthesized using hydrothermal techniques to have the composition V(6)O(16)Cu(C(4)H(4)N(2))(2) x (H(2)O)(0.22(1)) (C(4)H(4)N(2) = pyrazine, pyz). The Cu(II) square nets are nearly regular and undergo an antiferromagnetic transition at 8 K. In contrast to the plethora of recently synthesized metal-oxide clusters, chains, and networks in the VO(x)/M/L (M = late transition element; L = organonitrogen ligand) system, this compound is a relatively rare example that contains two different metals distributed into distinct layers. An application of charge density matching to form layered structures is postulated.

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“…Among them, some important synthetic routes are hydro/solvothermal synthesis, sonochemical, slow evaporation, microwave assisted synthesis, mechanochemical and electrochemical synthesis (16). It is well known that the crystallization, structure, and morphology of CPs depend on the metal or ligand type, solvent type (17)(18)(19), pH value of reaction mixture (20)(21)(22)(23), stoichiometric ratio of metal/ligand (24), mineralizing agent (25), temperature (26)(27)(28), and time (29). These parameters play a profound effect on the structural chemistry of compounds.…”

Section: Introductionmentioning

confidence: 99%

pH effect on hydrothermal synthesis of the coordination polymers containing pyrazine-2,3-dicarboxylate: Investigation of thermal stability, luminescence and electrical conductivity properties

Yıldız

Zubieta

2020

Journal of the Turkish Chemical Society Section A: Chemistry

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Hydrothermal reactions of the lanthanide(III) salt with 2,3-pyrazinedicarboxylic (2,3-pzdc) acid yielded the coordination polymers [La2(2,3-pzdc)3(H2O)]n.3nH2O (1) and [La2(2,3pzdc)3(H2O)]n.2nH2O (2). Compounds were obtained in a three dimensional form with different pH values under subcritical water conditions. The structures had variable coordination numbers. In addition, pH values play an important role in the structural chemistry of these materials. Different characterization techniques (elemental analysis, FT-IR, ICP-OES, TG/DTA, FESEM, PXRD, BET and single crystal X-ray) were carried out to confirm crystallinity, porosity, purity and chemical composition of the coordination polymers. Crystal structures of the polymers were examined in detail. Their thermal stability, luminescence and electrical conductivity properties were investigated in the solid state.

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Hydrothermal synthesis and crystal structures of two novel vanadium oxides containing interlamellar transition metal complexes

Cited by 25 publications

References 17 publications

Covalent Co–O–V and Sb–N Bonds Enable Polyoxovanadate Charge Control

Covalent Co–O–V and Sb–N Bonds Enable Polyoxovanadate Charge Control

Synthesis and Properties of V₆O₁₆Cu(C₄H₄N₂)₂·(H₂O)_0.22(1): Charge Density Matching of a Metal-Segregated Layer Structure

pH effect on hydrothermal synthesis of the coordination polymers containing pyrazine-2,3-dicarboxylate: Investigation of thermal stability, luminescence and electrical conductivity properties

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Hydrothermal synthesis and crystal structures of two novel vanadium oxides containing interlamellar transition metal complexes

Cited by 25 publications

References 17 publications

Covalent Co–O–V and Sb–N Bonds Enable Polyoxovanadate Charge Control

Covalent Co–O–V and Sb–N Bonds Enable Polyoxovanadate Charge Control

Synthesis and Properties of V6O16Cu(C4H4N2)2·(H2O)0.22(1): Charge Density Matching of a Metal-Segregated Layer Structure

pH effect on hydrothermal synthesis of the coordination polymers containing pyrazine-2,3-dicarboxylate: Investigation of thermal stability, luminescence and electrical conductivity properties

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Synthesis and Properties of V₆O₁₆Cu(C₄H₄N₂)₂·(H₂O)_0.22(1): Charge Density Matching of a Metal-Segregated Layer Structure