Intercalation of Aldehydes into Vanadyl Phosphate

Melánová, Klára; Beneš, Ludvı́k; Zima, Vı́tězslav; Votinský, Jiřı́

doi:10.1006/jssc.2000.9035

Cited by 15 publications

(6 citation statements)

References 23 publications

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“…Intercalates of vanadyl phosphate with propionaldehyde, butyraldehyde, valeraldehyde, capronaldehyde, benzaldehyde and 4-methylbenzaldehyde were prepared by replacing 1-propanol or 2-propanol in corresponding VOPO 4 intercalates [98]. Aldehyde intercalation occurs without any appreciable reduction in the host lattice, but the aliphatic aldehyde intercalates are very unstable.…”

Section: Intercalation Of Aldehydes and Ketonesmentioning

confidence: 99%

Intercalation chemistry of layered vanadyl phosphate: a review

Beneš

Melánová

Svoboda

et al. 2012

J Incl Phenom Macrocycl Chem

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The intercalation chemistry of layered a I modification of vanadyl phosphate and vanadyl phosphate dihydrate is reviewed. The focus is on neutral molecular guests and on metal cations used as guest species. The basic condition for the ability of the neutral molecules to be intercalated into vanadyl phosphate is a presence of an electron donor atom in them. The most commonly used guest compounds are those containing oxygen, nitrogen or sulfur as electron donor atoms. Regarding the molecules containing oxygen, various compounds were used as molecular guests starting from water to alcohols, ethers, aldehydes, ketones, carboxylic acids, lactones, and esters. An arrangement of the guest molecules in the interlayer space is discussed in connection with the data obtained by powder X-ray diffraction, thermogravimetry, IR and Raman spectroscopies, and solid-state NMR. In some cases, the local structure was suggested on the basis of quantum chemical calculations. Besides of those O-donor guests, also N-donor guests such as amines, nitriles and nitrogenous heterocycles and S-donor guests such as tetrathiafulvalene were intercalated into VOPO 4 . Also intercalates of complexes like ferrocene were prepared. Intercalation of cations is accompanied by a reduction of vanadium(V) to vanadium(IV). In this kind of intercalation reactions, an iodide of the intercalated cation is often used as it serves both as a mild reduction agent and as a source of the intercalated species. Intercalates of alkali metals, hydronium and ammonium were prepared and characterized. In the case of lithium and sodium intercalates, a staging phenomenon was observed. These redox intercalated vanadyl phosphates undergo ion exchange reactions which are discussed from the point of the nature of cations involved in the exchange. Vanadyl phosphates in which a part of vanadium atom is replaced by other metals are also briefly reviewed.

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Section: Intercalation Of Aldehydes and Ketonesmentioning

confidence: 99%

Intercalation chemistry of layered vanadyl phosphate: a review

Beneš

Melánová

Svoboda

et al. 2012

J Incl Phenom Macrocycl Chem

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“…On the other hand, aromatic aldehyde intercalates do not decompose in this way. [16] Some of these intercalates are crystalline solids and their diffractograms show, besides a series of sharp (00l) atom of the host structure. Quantum mechanical calculations at the ab initio level confirm the proposed structure in which the γ-butyrolactone guest molecules are arranged with the plane of the ring perpendicular to the host layers and are anchored to the layers through the carbonyl oxygen atom coordinated to the transition metal atom of the host.…”

Section: Introductionmentioning

confidence: 99%

“…[9Ϫ13] Recently, the intercalation of ketones, [14,15] aldehydes, [16] poly(ethylene glycol)s, [17,18] and heterocycles with O-donors [18Ϫ20] into vanadyl phosphates has been described. These guests are anchored to the host layers by donorϪacceptor bonds of their carbonyl or ether oxygen atoms to the vanadium atoms.…”

Section: Introductionmentioning

confidence: 99%

Intercalation of γ‐Butyrolactone into Vanadyl Phosphate and Niobyl Arsenate

Zima¹,

Melánová²,

Beneš³

et al. 2004

Eur J Inorg Chem

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Keywords:Intercalations / Powder X-ray diffraction / Vibrational spectroscopy / ab initio calculations Intercalation compounds of vanadyl phosphate and isostructural niobyl arsenate with γ-butyrolactone, VOPO 4 ·C 4 H 6 O 2 and NbOAsO 4 ·C 4 H 6 O 2 , respectively, were prepared from corresponding propanol intercalates by molecular exchange in a microwave field. The prepared intercalates were characterized using powder X-ray diffraction, density measurements, and thermogravimetric analysis. Infrared and Raman spectra indicate a coordination of the carbonyl oxygen atom of the γ-butyrolactone molecule to the vanadium or niobium

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“…In addition, the oxidizing property of this precursor allows for synthetic routes that involve a redox mechanism when it is placed in the presence of a proper reducing agent. Taking advantage of these features, it is possible to obtain different a-VOPO 4 Á2H 2 O intercalation compounds in which the guest species can vary from simple ions to polymeric species [6][7][8][9][10][11][12][13][14][15]. In this way, new materials with modified chemical and physical properties can be obtained.…”

Section: Introductionmentioning

confidence: 99%