Interactions between alkali cations and cyanide-bridged network in A ₂ Co ₄ [Fe(CN) ₆ ] 3.3 Prussian blue analogues revealed by far-infrared spectroscopy

Maria Dronova; Laura Altenschmidt; Amélie Bordage; Jean‐Blaise Brubach; Marine Verseils; Grégory Balthazar; Pascale Le Roy; Anne Bleuzen

doi:10.1039/d4ma00064a

January 1, 2024Materials AdvancesOpen Access

Interactions between alkali cations and cyanide-bridged network in A ₂ Co ₄ [Fe(CN) ₆ ] 3.3 Prussian blue analogues revealed by far-infrared spectroscopy

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Key Points

Investigate the positioning and interaction dynamics of alkali cations within the cyanide-bridged lattice of cobalt-iron Prussian blue analogues.
Performed variable-temperature far-infrared spectroscopy on A2Co4[Fe(CN)6]3.3 Prussian blue analogues.
Tracked framework vibrational bands across temperature changes to resolve alkali cation sites.
Demonstrated different site positioning of distinct alkali cations within the cyanide-bridged network.
Identified temperature-dependent spectroscopic shifts corresponding to host-guest framework interactions.

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Implication

Spectroscopic analysis reveals distinct alkali cation positioning in cyanide-bridged Prussian blue analogues, highlighting specific framework interactions across variable temperatures.

Abstract

A series of Prussian Blue Analogues (PBAs) having the chemical formula A2Co4[Fe(CN)6]3.3nH2O (A+ = Na+, Rb+ and Cs+) was investigated by variable temperature far-infrared spectroscopy. Despite the same chemical composition...

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Dronova et al. (2024) studied this question.

synapsesocial.com/papers/6a83187c6f989a47dda5011e https://doi.org/10.1039/d4ma00064a

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Interactions between alkali cations and cyanide-bridged network in A ₂ Co ₄ [Fe(CN) ₆ ] 3.3 Prussian blue analogues revealed by far-infrared spectroscopy

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Abstract

Discussion

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Interactions between alkali cations and cyanide-bridged network in A ₂ Co ₄ [Fe(CN) ₆ ] 3.3 Prussian blue analogues revealed by far-infrared spectroscopy

Key Points

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Abstract

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