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Reguera, E.; Fernández‐Bertrán, J.; Balmaseda, J.

doi:10.1023/a:1006942415737

Cited by 45 publications

(18 citation statements)

References 5 publications

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“…The high spin ferrous species are probably found coordinated at the N end of the formed ferrous complex without discarding the formation of a ferrous salt of the ferric complex anion, with certain stability under vacuum conditions. At room conditions, this last ferrous salt is unstable . The formation of a ferrous complex from the partial decomposition of the ferric one, is also evident from the N 1 s spectral region, where two peaks appear (Supporting Information).…”

Section: Resultsmentioning

confidence: 94%

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On the Scope of XPS as Sensor in Coordination Chemistry of Transition Metal Hexacyanometallates

Cano

Rodríguez‐Hernández²,

Reguera

et al. 2019

Eur J Inorg Chem

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This study reports an evaluation on the scope of X‐ray photoelectron spectroscopy (XPS) to obtain information for the coordination chemistry of transition metal (Tn) hexacyanometallates, TxAz[Mm(CN)6]y where nx +z = y(6 – m), A is an alkaline charge‐compensating cation, and Mm is a transition metal with a maximum of 6 electrons in its nd orbitals. XPS provides an elegant picture on the role of the CN π‐back bonding effect to determine the charge density on the N atom and, from this fact, on its coordination to transition metal ions to form coordination polymers. XPS appears to be able to discriminate between octahedral and tetrahedral coordination for the outer metal (T) to the N end of CN ligands, particularly when the XPS peak and the Auger lines are combined. A similar performance was observed when this spectroscopic technique is used to identify when the CN ligand is found with linear and bifurcated coordination mode to the metal linked at its N end. These last two structural features are relevant in the coordination of metal hexacyanometallates and determine their physical and functional properties. The results obtained from XPS data were correlated with the a priori information from IR spectra and the reported crystal structures for all the samples under study.

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Section: Resultsmentioning

confidence: 94%

“…At room conditions, this last ferrous salt is unstable. [40] The formation of a ferrous complex from the partial decomposition of the ferric one, is also evident from the N 1s 6 ]. The ferricyanide ion shows a higher sensibility to decomposition during the XPS experiment.…”

Section: Ir Spectramentioning

confidence: 97%

On the Scope of XPS as Sensor in Coordination Chemistry of Transition Metal Hexacyanometallates

Cano

Rodríguez‐Hernández²,

Reguera

et al. 2019

Eur J Inorg Chem

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“…It should also be recognized that infrared spectra themselves may present a problem, so care is needed in interpreting the literature data. Both grinding and applied pressure can induce chemical changes—so that normal methods of sample preparation for infrared spectroscopic measurements can introduce artefacts (with KBr discs, ion exchange can also occur) 19. It is for this reason that in the present paper all infrared spectra have been recorded using an attenuated total reflectance (ATR) cell.…”

Section: Introductionmentioning

confidence: 99%

The vibrational spectra of the cyanide ligand revisited: the ν(CN) infrared and Raman spectroscopy of Prussian blue and its analogues

Kettle

Diana

Marchese

et al. 2011

J Raman Spectroscopy

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A careful analysis of the Raman spectra of the M x [M(CN) 6 ] y Prussian blue species has enabled a general model for the interpretation of the ν(CN) vibrational spectra. The spectral patterns are derived from those of the metal ions with local O h symmetry. Two limiting models are discussed. A 'localized mode' model, involving matrix-isolated species, is in much better accord with the observations than a 'factor group' model. The use of the infrared feature as fingerprint of specific M-CN-M units arises from the axis-specific nature of individual T 1u modes. The interpretation of the A 1g and E g Raman features is done in terms of localized vibrations, with involvement of additional energy terms from the lattice motions.

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“…After the reaction was complete, the solution turned dark blue, indicating the formation of PBPPy composite nanoparticles. Then, Prussian white was oxidized to PB rapidly by atmospheric oxygen [20].…”

Section: Resultsmentioning

confidence: 99%

“…The peak at 2080 cm −1 is the characteristic CN stretching absorption band of Prussian blue and its analogues, and the absorption bands at 501 cm −1 are due to the formation of M-CN-M structures (M = metal); they indicate the presence of PB [20]. No obvious difference is found between the FTIR spectra of the PB nanoparticles prepared by the reverse micelle method and conventional methods [20]. Curve 2 in figure 2(b) has characteristic absorption bands of polypyrrole.…”

Section: Resultsmentioning

confidence: 99%

Assembly and electroanalytical performance of Prussian blue/polypyrrole composite nanoparticles synthesized by the reverse micelle method

Miao

Liu

2009

Science and Technology of Advanced Materials

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We report on the characterization, assembly and electroanalytical performance of Prussian blue/polypyrrole (PBPPy) composite nanoparticles synthesized by the reverse micelle method. Scanning electron microscopy suggests the formation of nanosized PBPPy particles with diameters between 40 and 50 nm. Optical absorption confirms that the particles are composed of Prussian blue (PB) and polypyrrole. PB and PBPPy nanoparticles were anchored onto the surface of cysteine-modified Au electrodes. Cyclic voltammetry experiments show that PB-or PBPPy-modified electrodes exhibit intrinsic electrochemical properties and a high electrocatalytic activity towards H 2 O 2 . PBPPy-modified electrodes exhibit a higher sensitivity to H 2 O 2 than PB-modified electrodes. A linear calibration curve in the concentration range 0.99 µM-8.26 mM H 2 O 2 is constructed with a detection limit of 0.23 µM at a signal-to-noise ratio of 3. Excellent stability is observed for PBPPy-composite-nanoparticle-modified electrodes even in a pH 6 phosphate buffer solution with a high H 2 O 2 concentration (0.99 mM). Glutaraldehyde and Nafion R were also employed to immobilize glucose oxidase for the development of PBPPy-based biosensors. The results show that PBPPy composite nanoparticles can be used to develop oxidase-based biosensors.

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Untitled

Cited by 45 publications

References 5 publications

On the Scope of XPS as Sensor in Coordination Chemistry of Transition Metal Hexacyanometallates

On the Scope of XPS as Sensor in Coordination Chemistry of Transition Metal Hexacyanometallates

The vibrational spectra of the cyanide ligand revisited: the ν(CN) infrared and Raman spectroscopy of Prussian blue and its analogues

Assembly and electroanalytical performance of Prussian blue/polypyrrole composite nanoparticles synthesized by the reverse micelle method

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